BD2JTD2WNVX [ROHM]
Fixed Positive LDO Regulator, 2.85V, 0.5V Dropout, CMOS, PDSO4, 1 X 1 MM, 0.60 MM PITCH, ROHS COMPLIANT, SSON-4;
| 型号： | BD2JTD2WNVX |
| 厂家： | 
ROHM |
| 描述： | Fixed Positive LDO Regulator, 2.85V, 0.5V Dropout, CMOS, PDSO4, 1 X 1 MM, 0.60 MM PITCH, ROHS COMPLIANT, SSON-4 光电二极管 输出元件 调节器 |
| 文件： | 总42页 (文件大小：2186K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CMOS LDO Regulators for Portable Equipments
1ch 200mA
CMOS LDO Regulators
BU□□TD2WNVX series
No.11020EBT07
●Description
BUTD2WNVX series is high-performance FULL CMOS regulator with 200-mA output, which is mounted on micro
miniature package SSON004X1010 (1.0 mm 1.0 mm 0.6 mm). It has excellent noise characteristics and load
responsiveness characteristics despite its low circuit current consumption of 35µA. It is most appropriate for various
applications such as power supplies for logic IC, RF, and camera modules. Micro miniature SSON004X1010 with built-in
heatsink is adopted for the package, which contributes to the space-saving design of the set.
●Features
1) High-accuracy output voltage of 1% (25 mV on Vout<2.5V products)
2) High ripple rejection: 70 dB (Typ., 1 kHz,)
3) Compatible with small ceramic capacitor (CIN=Co=0.47 µF)
4) Low current consumption: 35 µA
5) ON/OFF control of output voltage
6) With built-in overcurrent protection circuit and thermal shutdown circuit
7) With built-in output discharge circuit
8) Adopting ultra-small package SSON004X1010
●Applications
Battery-powered portable equipment, etc.
●Line up
■200 mA BU□□TD2WNVX Series
Product Name
1.0
1.2
1.5
1.8
1.85
1.9
2.0
2.1
2.3
2.5
Package
○
2.6
○
○
2.7
○
○
2.8
○
○
2.85
○
○
2.9
○
○
3.0
○
○
3.1
○
○
3.2
○
○
3.3
○
○
BU□□TD2WNVX
3.4 SSON004X1010
○
Model name：BU□□TD2WNVX
a
Contents
Specification of output voltage
Symbol
Output voltage
(V)
□□ Output voltage (V) □□ Output voltage (V) □□
□□ Output voltage (V)
10
12
15
18
1J
1.0 V(Typ.)
1.2 V(Typ.)
1.5 V(Typ.)
1.8 V(Typ.)
1.85 V(Typ.)
19
20
21
23
25
1.9 V(Typ.)
2.0 V(Typ.)
2.1 V(Typ.)
2.3V(Typ.)
2.5 V(Typ.)
26
27
28
2J
29
2.6 V(Typ.)
2.7 V(Typ.)
2.8 V(Typ.)
2.85 V(Typ.)
2.9 V(Typ.)
30
31
32
33
34
3.0 V(Typ.)
3.1 V(Typ.)
3.2 V(Typ.)
3.3 V(Typ.)
3.4 V(Typ.)
a
www.rohm.com
2011.01 - Rev.B
1/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Absolute maximum ratings
Parameter
Symbol
VMAX
Pd
Ratings
-0.3 ~ +6.5
560(*1)
Unit
V
Maximum applied power voltage
Power dissipation
mW
℃
Maximum junction temperature
Operational temperature range
Storage temperature range
TjMAX
Topr
+125
-40 ~ +85
-55 ~ +125
℃
Tstg
℃
(*1) When PCB (70 mm 70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented.
Reduced to 5.6 mW/℃ when used at Ta=25℃ or higher.
●Recommended operating range (Do not exceed Pd.)
Parameter
Symbol
VIN
Ratings
1.7 ~ 5.5
200
Unit
V
Input power supply voltage
Maximum output current
IMAX
mA
●Recommended operating conditions
Ratings
Typ.
Parameter
Symbol
CIN
Unit
µF
Conditions
Min.
Max.
Input capacitor
0.22(*2)
0.47
0.47
－
A ceramic capacitor is recommended.
A ceramic capacitor is recommended.
Output capacitor
CO
0.22(*2)
－
µF
(*2) Set the capacity value of the capacitor so that it does not fall below the minimum value, taking temperature characteristics,
DC device characteristics, and change with time into consideration.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
2/41
Technical Note
BU□□TD2WNVX series
●Electrical characteristics(Ta=25℃, VIN=VOUT+1.0V(*3), STBY=VIN, CIN=0.47μF, CO=0.47μF, unless otherwise noted.)
Limits
Parameter
Overall Device
Symbol
Unit
Conditions
Min.
Typ.
Max.
VOUT
×0.99
VOUT
-25mV
VOUT
×1.01
VOUT
+25mV
IOUT=10µA,VOUT≧2.5V
IOUT=10µA,VOUT＜2.5V
IOUT=0mA
Output Voltage
VOUT
VOUT
V
Operating Current
IIN
ISTBY
RR
-
-
35
-
60
1.0
-
µA
µA
Operating Current (STBY)
Ripple Rejection Ratio
STBY=0V
45
-
70
dB
VRR=-20dBv,fRR=1kHz,IOUT=10mA
2.5V≦VOUT≦2.6V
(VIN=0.98*VOUT,IOUT=200mA)
280
260
240
220
2
540
500
460
420
20
mV
mV
mV
mV
mV
2.7V≦VOUT≦2.85V
(VIN=0.98*VOUT,IOUT=200mA)
-
Dropout Voltage
Line Regulation
VSAT
2.9V≦VOUT≦3.1V
(VIN=0.98*VOUT,IOUT=200mA)
-
3.2V≦VOUT≦3.4V
(VIN=0.98*VOUT,IOUT=200mA)
VIN=VOUT+1.0V to 5.5V(*4)
IOUT=10µA
-
VDL
-
Load Regulation
VDLO
-
10
80
mV IOUT=0.01mA to 100mA
Over-current Protection (OCP)
Limit Current
ILMAX
220
20
400
70
700
150
mA Vo=VOUT*0.95
mA Vo=0V
Short Current
ISHORT
Standby Block
Discharge Resistor
RDSC
ISTB
20
0.1
1.2
-0.3
50
0.6
-
80
2.0
5.5
0.3
Ω
µA
V
VIN=4.0V, STBY=0V, VOUT=4.0V
STBY=1.5V
STBY Pin Pull-down Current
ON
VSTBH
STBY Control Voltage
OFF VSTBL
-
V
* This product does not have radiation-proof design.
(*3) VIN=2.5V for VOUT≦1.5V
(*4) VIN=2.5V to 5.5V for VOUT≦1.5V
●Electrical characteristics of each Output Voltage
(Ta=25℃, STBY=VIN, CIN=0.47μF, Co=0.47μF, unless otherwise noted.)
Limits
Parameter
1.2V
Symbol
Unit
Conditions
Min.
80
Typ.
160
Max.
-
VIN=1.7V
VIN=2.1V
VIN=1.8V
VIN=2.2V
VIN=2.4V
VIN=2.5V
200
60
-
-
-
-
-
-
120
Maximum
output current
1.5V
mA
200
200
200
-
-
-
1.8V
1.9V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
3/41
Technical Note
BU□□TD2WNVX series
●Block diagram, recommended circuit diagram, and pin configuration diagram
BU□□TD2WNVX
VIN
VIN
4
PIN No. Symbol
Function
Voltage output
Grounding
VREF
VOUT
Co
Cin
VOUT
1
1
2
3
4
VOUT
GND
STBY
VIN
2
OCP
GND
VSTBY
TSD
ON/OFF control of output voltage
(High: ON, Low: OFF)
STBY
Discharge
STBY
3
Power input
Recommended ceramic capacitor for Cin & Co
Murata Manufacturing Co., Ltd.
GRM188B11A474KA61D
Fig.1 Recommended circuit diagram
●Input / Output terminal equivalent circuit schematic
1pin (VOUT)
2pin (GND)
3pin (STBY)
4pin (VIN)
Fig.2 Input/Output equivalent circuit
●About input/output capacitor
It is recommended to place a capacitor as close as possible to
the pins between the input terminal and GND or between the
output terminal and GND.
Capacity value of ceramic capacitor - DC bias characteristics
(Example)
10-V withstand voltage
B1characteristics
GRM188B11A105KA61D
10
0
The capacitor between the input terminal and GND becomes
valid when source impedance increases or when wiring is long.
The larger the capacity of the output capacitor between the
output terminal and GND is, the better the stability and
characteristics in output load fluctuation become.
However, please check the status of actual implementation.
Ceramic capacitors generally have variation, temperature
characteristics, and direct current bias characteristics and the
capacity value also decreases with time depending on the
usage conditions. It is recommended to select a ceramic
capacitor upon inquiring about detailed data of the related
manufacturer.
10-V withstand voltage
B characteristics
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
6.3-V withstand voltage
B characteristics
10-V withstand voltage
F characteristics
4-V withstand voltage
X6S characteristics
10-V withstand voltage
F characteristics
0
0.5
1
1.5
2
2.5
3
3.5
4
DC Bias Voltage [V]
Fig.3 Capacity – bias characteristics
●About the equivalent series resistance (ESR) of a ceramic capacitor
Cout=0.47μF ,CIN=0.47μF ,Temp=+25℃
Capacitors generally have ESR (equivalent series resistance)
and it operates stably in the ESR-IOUT area shown on the right.
Since ceramic capacitors, tantalum capacitors, electrolytic
capacitors, etc. generally have different ESR, please check the
ESR of the capacitor to be used and use it within the stability
area range shown in the right graph for evaluation of the actual
application.
100
Unstable region
10
1
Stable region
0.1
0.01
0
50
100
150
200
IOUT [mA]
Fig.4 Stability area characteristics (Example)
www.rohm.com
2011.01 - Rev.B
4/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU12TD2WNVX (Ta=25℃ unless otherwise specified.)
1.4
100
80
60
40
20
0
1.25
Temp=25°C
Temp=25°C
1.24
VIN=STBY
Io=0uA
1.2
1.23
1.0
Temp=85°
Temp=25°C
Temp=-40°C
1.22
1.21
0.8
Io=0uA
1.20
1.19
1.18
1.17
1.16
1.15
0.6
0.4
0.2
0.0
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
VIN=STBY
VIN=STBY
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
0.2
1.5
85
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.5. Output Voltage
Fig.6. Line Regulation
Fig.7. Circuit Current IGND
1.25
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=2.5V
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
VIN=2.5V
STBY=1.5V
STBY=1.5V
Temp=85°C
Temp=25°C
Temp=85°C
Temp=85°C
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=25°C
Temp=-40°C
Temp=-40°C
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0
0.05
0.1
0.15
0.2
Input Voltage (V)
Output Current (A)
Output Current (A)
Fig.8. VSTBY - ISTBY
Fig.9. IOUT - IGND
Fig.10. Load Regulation
1.4
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
1.5
1.0
0.5
0.0
Temp=25°C
VIN=2.5V
STBY=1.5V
Io=0.1mA
VIN=2.5V
Io=0mA
1.2
1.0
0.8
0.6
0.4
0.2
0.0
VIN=2.5V
VIN=5.5V
VIN=1.7V
Temp=25°C
Temp=-40°C
Temp=85°C
STBY=1.5V
0.5 0.6
0
0.5
1
0
0.1
0.2
0.3
0.4
-40
-15
10
35
60
85
STBY Voltage (V)
Output Current (A)
Temp (°C)
Fig.11. OCP Threshold
Fig.12. STBY Threshold
Fig.13. VOUT - Temp
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=2.5V
STBY=1.5V
Io=0mA
VIN=2.5V
STBY=0V
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Fig.14. IGND vs Temp
Fig.15. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
5/41
Technical Note
BU□□TD2WNVX series
●Reference data BU12TD2WNVX (Ta=25 ℃unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
1.30
1.25
1.25
1.20
1.20
1.15
1.15
1.10
Fig.17. Load Response
Fig.16. Load Response
100
100
50
0
IOUT=0mA→100mA
50
0
IOUT=100mA→0mA
1.30
1.25
1.20
1.25
1.20
1.15
1.15
1.10
Fig.19. Load Response
Fig.18. Load Response
200
200
IOUT=0mA→200mA
100
0
100
IOUT=200mA→0mA
0
1.40
1.30
1.30
1.20
1.20
1.10
1.10
1.00
Fig.21. Load Response
Fig.20. Load Response
100
100
50
0
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
1.25
1.20
1.25
1.20
1.15
1.10
1.15
1.10
Fig.22. Load Response
Fig.23. Load Response
www.rohm.com
2011.01 - Rev.B
6/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU12TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.24. Start Up Time
Iout=0mA
Fig.25. Start Up Time
Iout=200mA
4.0
2.0
0.0
4.0
2.0
VIN=STBY=0→2.5V
VIN=STBY=0→2.5V
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.26. Start Up Time
(VIN=STBY) Iout=0mA
Fig.27. Start Up Time
(VIN=STBY) Iout=200mA
2.0
1.0
4.5
3.5
2.5
VIN=2.5V→3.5V→2.5V
STBY=1.5→0V
0.0
2.0
1.0
1.21
1.20
0.0
1.19
1.18
Fig.28. Discharge Time
Fig.29. VIN Response
www.rohm.com
2011.01 - Rev.B
7/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU15TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
100
80
60
40
20
0
1.55
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
1.45
Temp=25°C
Temp=25°C
VIN=STBY
IO=0uA
VIN=STBY
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
85
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.32. Circuit Current IGND
Fig.30. Output Voltage
Fig.31. Line Regulation
1.55
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=2.5V
VIN=2.5V
STBY=1.5V
1.54
1.53
1.52
1.51
STBY=1.5V
Temp=85°C
Temp=25°C
Temp=85°C
Temp=85°C
1.50
1.49
1.48
1.47
1.46
1.45
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
0.05
0
0.1
0.15
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0.2
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.33. VSTBY - ISTBY
Fig.34. IOUT - IGND
Fig.35. Load Regulation
1.55
1.54
1.53
1.52
1.51
1.50
1.49
2.0
1.8
1.6
1.4
1.2
2.0
1.5
1.0
VIN=2.5V
STBY=1.5V
Io=0.1mA
Temp=25°C
VIN=3.8V
Io=0mA
VIN=2.5V
VIN=2.0V
VIN=5.5V
1.0
0.8
0.6
0.4
0.2
0.0
Temp=25°C
1.48
1.47
Temp=-40°C
Temp=85°C
0.5
0.0
1.46
1.45
STBY=1.5V
0.5
0
0.1
0.2
0.3
0.4
0.6
0
0.5
1
1.5
-40
-15
10
35
60
Output Current (A)
Temp (°C)
STBY Voltage (V)
Fig.37. STBY Threshold
Fig.38. VOUT - Temp
Fig.36. OCP Threshold
1.0
0.9
0.8
0.7
0.6
60
50
40
30
20
10
0
VIN=2.5V
STBY=1.5V
Io=0mA
VIN=2.5V
STBY=0V
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Fig.39. IGND vs Temp
Fig.40. IGND vs Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
8/41
Technical Note
BU□□TD2WNVX series
●Reference data BU15TD2WNVX (Ta=25℃ unless otherwise specified.)
1
100
100
5
50
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
1.55
1.50
0
1.60
0
1.55
5
1.45
1.40
1.50
0
1.45
5
Fig.42. Load Response
Fig.41. Load Response
100
50
0
100
50
0
IOUT=0mA→100mA
IOUT=100mA→0mA
1.55
1.50
1.60
1.55
1.45
1.40
1.50
1.45
Fig.43. Load Response
Fig.44. Load Response
200
100
0
200
IOUT=0mA→200mA
100
0
IOUT=200mA→0mA
1.60
1.50
1.70
1.60
1.50
1.40
1.40
1.30
Fig.45. Load Response
Fig.46. Load Response
100
100
50
0
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
1.55
1.60
1.50
1.45
1.40
1.55
1.50
1.45
Fig.48. Load Response
Fig.47. Load Response
www.rohm.com
2011.01 - Rev.B
9/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU15TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
2.0
2.0
1.0
1.0
0.0
0.0
Fig.50. Start Up Time
Iout=200mA
Fig.49. Start Up Time
Iout=0mA
4.0
2.0
0.0
4.0
2.0
VIN=STBY=0→2.5V
VIN=STBY=0→2.5V
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.51. Start Up Time
(VIN=STBY) Iout=0mA
Fig.52. Start Up Time
(VIN=STBY) Iout=200mA
4.5
2.0
1.0
VIN=2.5V→3.5V→2.5V
3.5
2.5
STBY=1.5→0V
0.0
1.51
1.50
2.0
1.0
1.49
1.48
0.0
Fig.53. Discharge Time
Fig.54. VIN Response
www.rohm.com
2011.01 - Rev.B
10/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU18TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
100
80
60
40
20
0
Temp=25°C
Temp=25°C
VIN=STBY
Io=0uA
VIN=STBY
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
VIN=STBY
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
85
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.55. Output Voltage
Fig.56. Line Regulation
Fig.57. Circuit Current IGND
1.85
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=2.8V
VIN=2.8V
1.84
1.83
1.82
1.81
STBY=1.5V
STBY=1.5V
Temp=85°C
Temp=25°C
Temp=85°C
Temp=85°C
1.80
1.79
1.78
1.77
1.76
1.75
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
0.05
0
0.1
0.15
0
0.05
0.1
0.15
0.2
1.5
85
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Output Current (A)
Output Current (A)
Input Voltage (V)
Fig.60. Load Regulation
Fig.58. VSTBY - ISTBY
Fig.59. IOUT - IGND
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
2.0
1.8
1.6
1.4
1.2
2.0
VIN=2.8V
STBY=1.5V
Io=0.1mA
VIN=3.8V
Io=0mA
VIN=2.8V
1.5
1.0
0.5
0.0
VIN=5.5V
VIN=2.3V
1.0
0.8
0.6
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=85°C
Temp=25°C
STBY=1.5V
0
0.5
1
-40
-15
10
35
60
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Temp (°C)
STBY Voltage (V)
Output Current (mA)
Fig.63. VOUT - Temp
Fig.62. STBY Threshold
Fig.61. OCP Threshold
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=2.8V
STBY=1.5V
Io=0mA
VIN=2.8V
STBY=0V
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
85
-40
-15
10
35
60
Temp (°C)
Temp (°C)
Fig.64. IGND - Temp
Fig.65. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
11/41
Technical Note
BU□□TD2WNVX series
●Reference data BU18TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
1.90
1.85
1.85
1.80
1.80
1.75
1.75
1.70
VIN=2.8V
STBY=1.5V
COUT=0.47uF
Fig.67. Load Response
Fig.66. Load Response
100
50
0
100
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
1.85
1.80
1.90
1.85
1.75
1.70
1.80
1.75
VIN=2.8V
STBY=1.5V
COUT=0.47uF
Fig.69. Load Response
Fig.68. Load Response
200
100
0
200
IOUT=0mA→200mA
100
0
IOUT=200mA→0mA
2.00
1.90
1.90
1.80
1.80
1.70
1.70
1.60
VIN=2.8V
STBY=1.5V
COUT=0.47uF
Fig.71. Load Response
Fig.70. Load Response
100
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
50
0
1.85
1.80
1.90
1.80
1.75
1.70
1.70
1.60
VIN=2.8V
STBY=1.5V
COUT=0.47uF
Fig.72. Load Response
Fig.73. Load Response
www.rohm.com
2011.01 - Rev.B
12/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU18TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
2.0
1.0
0.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.74. Start Up Time
Iout=0mA
Fig.75. Start Up Time
Iout=200mA
4.0
2.0
0.0
4.0
VIN=STBY=2.8→0V
VIN=STBY=0→2.8V
2.0
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.77. Start Up Time
(VIN=STBY) Iout=200mA
Fig.76. Start Up Time
(VIN=STBY) Iout=0mA
Iout=0mA
2.0
1.0
0.0
4.8
VIN=2.8V→3.8V→2.8V
3.8
2.8
STBY=1.5→0V
1.81
1.80
2.0
1.0
1.79
1.78
0.0
Fig.79. VIN Response
Fig.78. Discharge Time
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
13/41
Technical Note
BU□□TD2WNVX series
●Reference data BU19TD2WNVX (Ta=25℃ unless otherwise specified.)
1.95
2.0
100
80
Temp=25°C
1.94
1.93
1.92
1.91
1.90
1.89
1.88
1.87
1.86
1.85
Temp=25°C
IO=0uA
VIN=STBY
1.8
1.6
1.4
1.2
1.0
Io=0uA
Temp=85°C
Temp=25°C
Io=100uA
Io=50mA
Io=200mA
60
0.8
0.6
40
20
Io=0uA
Io=100uA
Io=50mA
Io=200mA
0.4
0.2
0.0
Temp=-40°C
VIN=STBY
2.4 2.5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
85
1.8
1.9
2
2.1
2.2
2.3
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.82. Circuit Current IGND
Fig.80. Output Voltage
Fig.81. Line Regulation
1.95
1.94
1.93
1.92
1.91
1.90
1.89
1.88
1.87
1.86
1.85
1.6
1.4
1.2
1.0
0.8
0.6
100
VIN=2.9V
VIN=3.9V
STBY=1.5V
STBY=1.5V
Temp=85°C
80
60
40
20
0
Temp=85°C
Temp=25°C
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
0
0.05
0.1
0.15
0.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.84. IOUT - IGND
Fig.85. Load Regulation
Fig.83. VSTBY - ISTBY
1.95
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
VIN=2.9V
STBY=1.5V
Io=100µA
1.94
1.93
1.92
1.91
1.90
1.89
1.88
1.87
1.86
1.85
VIN=3.9V
Io=0mA
VIN=5.5V
VIN=2.9V
VIN=2.4V
1.5
1.0
0.5
0.0
Temp=25°C
Temp=-40°C
Temp=85°C
Temp=25°C
STBY=1.5V
0
0.5
1
1.5
-40
-15
10
35
60
0
0.1
0.2
0.3
0.4
0.5
0.6
STBY Voltage (V)
Temp (°C)
Output Current (A)
Fig.86. OCP Threshold
Fig.87. STBY Threshold
Fig.88. VOUT - Temp
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=2.9V
VIN=2.9V
STBY=0V
STBY=1.5V
Io=0µA
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Fig.90. IGND - Temp (STBY)
Fig.89. IGND - Temp
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
14/41
Technical Note
BU□□TD2WNVX series
●Reference data BU19TD2WNVX (Ta=25℃ unless otherwise specified.)
100
100
50
0
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
2.00
1.95
1.95
1.90
1.90
1.85
1.85
1.80
Fig.91. Load Response
Fig.92. Load Response
100
100
50
0
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
1.95
2.00
1.95
1.90
1.85
1.80
1.90
1.85
Fig.93. Load Response
Fig.94. Load Response
200
100
0
200
IOUT=0mA→200mA
100
IOUT=200mA→0mA
0
2.10
2.00
2.00
1.90
1.80
1.70
1.90
1.80
Fig.96. Load Response
Fig.95. Load Response
100
50
0
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
2.00
1.95
1.95
1.90
1.90
1.85
1.85
1.80
Fig.98. Load Response
Fig.97. Load Response
www.rohm.com
2011.01 - Rev.B
15/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU19TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.100. Start Up Time
Iout=200mA
Fig.99. Start Up Time
Iout=0mA
4.0
4.0
2.0
0.0
VIN=STBY=0→2.9V
VIN=STBY=0→2.9V
2.0
0.0
2.0
1.0
2.0
1.0
0.0
0.0
Fig.102. Start Up Time
(VIN=STBY) Iout=200mA
Fig.101. Start Up Time
(VIN=STBY) Iout=0mA
4.9
3.9
2.9
2.0
1.0
0.0
VIN=2.9V→3.9V→2.9V
STBY=1.5→0V
1.91
1.90
2.0
1.0
1.89
1.88
0.0
Fig.104. VIN Response
Fig.103. Discharge Time
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
16/41
Technical Note
BU□□TD2WNVX series
●Reference data BU25TD2WNVX (Ta=25℃ unless otherwise specified.)
3.5
2.55
2.54
2.53
2.52
2.51
2.50
100
80
60
40
20
0
Temp=25°C
Temp=25°C
IO=0uA
VIN=STBY
3.0
2.5
2.0
1.5
1.0
0.5
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
2.49
2.48
2.47
2.46
2.45
Temp=-40°C
VIN=STBY
3
VIN=STBY
4.5 5
0.0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
5.5
2.4
2.5
2.6
2.7
2.8
2.9
3.1
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.105. Output Voltage
Fig.106. Line Regulation
Fig.107. Circuit Current IGND
1.6
1.4
1.2
1.0
0.8
0.6
2.55
100
80
60
40
20
0
VIN=3.5V
2.54
2.53
2.52
2.51
2.50
VIN=3.5V
STBY=1.5V
STBY=1.5V
Temp=85°C
Temp=85°C
Temp=25°C
2.49
2.48
2.47
2.46
2.45
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=-40°C
Temp=25°C
Temp=85°C
0.15
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0.2
0
0.05
0.1
0.2
1.5
85
Input Voltage (V)
Output Current (A)
Output Current (A)
Fig.108. VSTBY - ISTBY
Fig.110. Load Regulation
Fig.109. IOUT - IGND
0.35
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Temp=25°C
VIN=3.5V
Io=0mA
VIN=3.5V
VIN=3.0V
0.30
0.25
0.20
0.15
0.10
0.05
Temp=85°C
Temp=25°C
VIN=5.5V
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0.5 0.6
0.00
0
0.1
0.2
0.3
0.4
0
0.5
1
0
0.05
0.1
0.15
0.2
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.111. Dropout Voltage
Fig.112. OCP Threshold
Fig.113. STBY Threshold
2.55
2.54
2.53
2.52
60
50
40
30
20
10
0
1.0
VIN=3.5V
STBY=1.5V
Io=0.1mA
VIN=3.5V
STBY=1.5V
Io=0mA
0.9
0.8
0.7
0.6
VIN=3.5V
STBY=0V
2.51
2.50
0.5
0.4
0.3
0.2
0.1
0.0
2.49
2.48
2.47
2.46
2.45
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
Temp (°C)
Temp (°C)
Temp (°C)
Fig.116. IGND - Temp (STBY)
Fig.114. VOUT - Temp
Fig.115. IGND - Temp
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
17/41
Technical Note
BU□□TD2WNVX series
●Reference data BU25TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
2.70
2.65
2.55
2.50
2.50
2.45
2.45
2.40
Fig.118. Load Response
Fig.117. Load Response
100
200
100
0
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
2.55
2.50
2.60
2.55
2.45
2.40
2.50
2.45
Fig.119. Load Response
Fig.120. Load Response
200
200
100
0
IOUT=0mA→200mA
100
IOUT=200mA→0mA
0
2.60
2.70
2.60
2.50
2.40
2.30
2.50
2.40
Fig.121. Load Response
Fig.122. Load Response
100
50
0
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
2.0
2.55
2.50
2.55
2.50
2.45
2.45
2.40
Fig.124. Load Response
Fig.123. Load Response
www.rohm.com
2011.01 - Rev.B
18/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU25TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.125. Start Up Time
Iout=0mA
Fig.126. Start Up Time
Iout=200mA
4.0
4.0
2.0
0.0
VIN=STBY=0→3.5V
VIN=STBY=0→3.5V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.128. Start Up Time
(VIN=STBY) Iout=200mA
Fig.127. Start Up Time
(VIN=STBY) Iout=0mA
2.0
5.5
VIN=3.5V→4.5V→3.5V
STBY=1.5→0V
1.0
0
4.5
3.5
2.51
2.50
4.0
2.0
2.49
2.48
0.0
Fig.129. Discharge Time
Fig.130. VIN Response
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
19/41
Technical Note
BU□□TD2WNVX series
●Reference data BU26TD2WNVX (Ta=25℃ unless otherwise specified.)
2.65
2.64
2.63
2.62
2.61
2.60
2.59
2.58
2.57
2.56
2.55
3.0
2.5
2.0
1.5
1.0
0.5
0.0
100
80
60
40
20
0
Temp=25°C
IO=0uA
Temp=25°C
VIN=STBY
VIN=STBY
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
VIN=STBY
2.5
2.6
2.7
2.8
2.9
3
3.1
3.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
1.5
85
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.133. Circuit Current IGND
Fig.132. Line Regulation
Fig.131. Output Voltage
2.65
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=3.6V
VIN=3.6V
2.64
STBY=1.5V
STBY=1.5V
Temp=85°C
2.63
2.62
Temp=25°C
Temp=85°C
2.61
2.60
2.59
2.58
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=25°C
Temp=-40°C
2.57
Temp=-40°C
2.56
2.55
Temp=85°C
0.15
0
0.05
0.1
0.15
0.2
0.6
85
0
0.05
0.1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Output Current (A)
Output Current (A)
Input Voltage (V)
Fig.135. IOUT - IGND
Fig.136. Load Regulation
Fig.134. VSTBY - ISTBY
0.35
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Temp=25°C
VIN=3.6V
Io=0mA
0.30
0.25
0.20
0.15
0.10
0.05
VIN=3.1V
VIN=3.6V
Temp=85°C
VIN=5.5V
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0.5
0.00
0
0.05
0.1
0.15
0.2
0
0.1
0.2
0.3
0.4
0
0.5
1
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.138. OCP Threshold
Fig.139. STBY Threshold
Fig.137. Dropout Voltage
2.65
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=3.6V
2.64
2.63
2.62
VIN=3.6V
STBY=1.5V
Io=0mA
STBY=1.5V
Io=0.1mA
VIN=3.6V
STBY=0V
2.61
2.60
2.59
0.5
0.4
0.3
0.2
0.1
0.0
2.58
2.57
2.56
2.55
-40
-15
10
35
60
85
-40
-15
10
35
60
-40
-15
10
35
60
Temp (°C)
Temp (°C)
Temp (°C)
Fig.140. VOUT - Temp
Fig.141. IGND - Temp
Fig.142. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
20/41
Technical Note
BU□□TD2WNVX series
●Reference data BU26TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
2.65
2.60
2.70
2.65
2.55
2.50
2.60
2.55
Fig.143. Load Response
Fig.144. Load Response
100
50
0
100
IOUT=100mA→0mA
IOUT=0mA→100mA
50
0
2.70
2.65
2.60
2.65
2.60
2.55
2.55
2.50
Fig.146. Load Response
Fig.145. Load Response
200
100
0
200
IOUT=0mA→200mA
100
0
IOUT=200mA→0mA
2.70
2.60
2.80
2.70
2.50
2.40
2.60
2.50
Fig.147. Load Response
Fig.148. Load Response
100
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
50
0
0
2.65
2.60
2.62
2.61
2.60
2.59
2.55
2.50
Fig.150. Load Response
Fig.149. Load Response
www.rohm.com
2011.01 - Rev.B
21/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU26TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.151. Start Up Time
Iout=0mA
Fig.152. Start Up Time
Iout=200mA
4.0
2.0
0.0
4.0
VIN=STBY=0→3.6V
VIN=STBY=0→3.6V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.153. Start Up Time
(VIN=STBY) Iout=0mA
Fig.154. Start Up Time
(VIN=STBY) Iout=200mA
5.6
4.6
3.6
2.0
1.0
0.0
VIN=3.6V→4.6V→3.6V
STBY=1.5→0V
2.65
2.60
2.55
4.0
2.0
0.0
Fig.155. Discharge Time
Fig.156. VIN Response
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
22/41
Technical Note
BU□□TD2WNVX series
●Reference data BU27TD2WNVX (Ta=25℃ unless otherwise specified.)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.75
2.74
2.73
2.72
2.71
2.70
2.69
2.68
2.67
2.66
2.65
100
80
Temp=25°C
IO=0uA
Temp=25°C
VIN=STBY
VIN=STBY
60
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
40
20
0
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
VIN=STBY
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
1.5
85
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.157. Output Voltage
Fig.158. Line Regulation
Fig.159. Circuit Current IGND
2.75
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=3.7V
VIN=3.7V
2.74
STBY=1.5V
STBY=1.5V
Temp=85°C
2.73
2.72
Temp=85°C
Temp=25°C
2.71
2.70
2.69
2.68
2.67
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=25°C
Temp=-40°C
Temp=85°C
Temp=-40°C
0.05
2.66
2.65
0
0.05
0.1
0.15
0.2
0
0.1
0.15
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0.2
85
Output Current (A)
Output Current (A)
Input Voltage (V)
Fig.161. IOUT - IGND
Fig.160. VSTBY - ISTBY
Fig.162. Load Regulation
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.35
0.30
0.25
0.20
3.0
2.5
2.0
1.5
1.0
0.5
0.0
VIN=3.7V
Io=0mA
VIN=3.1V
VIN=5.5V
Temp=85°C
VIN=3.6V
Temp=25°C
Temp=-40°C
0.15
0.10
0.05
0.00
Temp=25°C
Temp=-40°C
Temp=85°C
Temp=25°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0.5 0.6
0
0.1
0.2
0.3
0.4
0
0.05
0.1
0.15
0
0.5
1
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.163. Dropout Voltage
Fig.164. OCP Threshold
Fig.165. STBY Threshold
2.75
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=3.7V
VIN=3.7V
STBY=1.5V
Io=0.1mA
2.74
2.73
2.72
2.71
VIN=3.7V
STBY=0V
STBY=1.5V
Io=0.1mA
2.70
2.69
2.68
2.67
0.5
0.4
0.3
0.2
0.1
0.0
2.66
2.65
-40
-15
10
35
60
-40
-15
10
35
60
85
-40
-15
10
35
60
Temp (°C)
Temp (°C)
Temp (°C)
Fig.166. VOUT - Temp
Fig.167. IGND - Temp
Fig.168. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
23/41
Technical Note
BU□□TD2WNVX series
●Reference data BU27TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
2.80
2.75
2.75
2.70
2.70
2.65
2.65
2.60
Fig.170. Load Response
Fig.169. Load Response
100
50
0
100
IOUT=0mA→100mA
50
0
IOUT=100mA→0mA
2.80
2.75
2.75
2.70
2.70
2.65
2.65
2.60
Fig.172. Load Response
Fig.171. Load Response
200
200
100
0
IOUT=0mA→200mA
100
IOUT=200mA→0mA
0
2.80
2.70
2.90
2.80
2.60
2.50
2.70
2.60
Fig.173. Load Response
Fig.174. Load Response
100
50
0
100
IOUT=100mA→50mA
IOUT=50mA→100mA
50
0
2.80
2.75
2.75
2.70
2.70
2.65
2.65
2.60
Fig.176. Load Response
Fig.175. Load Response
www.rohm.com
2011.01 - Rev.B
24/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU27TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
1.0
STBY=0→1.5V
STBY=0→1.5V
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.178. Start Up Time
Iout=200mA
Fig.177. Start Up Time
Iout=0mA
4.0
2.0
0.0
4.0
VIN=STBY=0→3.7V
VIN=STBY=0→3.7V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.180. Start Up Time
(VIN=STBY) Iout=200mA
Fig.179. Start Up Time
(VIN=STBY) Iout=0mA
5.7
4.7
3.7
2.0
1.0
STBY=1.5→0V
0.0
2.71
2.70
4.0
2.0
2.69
2.68
0.0
Fig.181. Discharge Time
Fig.182. VIN Response
www.rohm.com
2011.01 - Rev.B
25/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU28TD2WNVX (Ta=25℃ unless otherwise specified.)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.85
2.84
2.83
2.82
2.81
2.80
2.79
2.78
2.77
2.76
2.75
100
80
Temp=25°C
Temp=25°C
VIN=STBY
VIN=STBY
Io=0uA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=85°C
Temp=25°C
60
Io=0uA
Io=100uA
Io=50mA
Io=200mA
40
20
0
VIN=STBY
Temp=-40°C
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.183. Output Voltage
Fig.184. Line Regulation
Fig.185. Circuit Current IGND
2.85
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=3.8V
VIN=3.8V
2.84
STBY=1.5V
STBY=1.5V
Temp=85°C
2.83
2.82
Temp=25°C
Temp=85°C
2.81
2.80
2.79
2.78
2.77
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=85°C
2.76
Temp=-40°C
2.75
0
0.05
0.1
0.15
0.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0.2
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.186. VSTBY - ISTBY
Fig.188. Load Regulation
Fig.187. IOUT - IGND
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.35
0.30
0.25
0.20
3.0
2.5
2.0
1.5
1.0
0.5
0.0
VIN=3.8V
Io=0mA
VIN=3.3V
VIN=3.8V
VIN=5.5V
Temp=85°C
Temp=25°C
0.15
0.10
0.05
0.00
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0.5 0.6
0
0.1
0.2
0.3
0.4
0
0.05
0.1
0.15
0.2
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.189. Dropout Voltage
Fig.190. OCP Threshold
Fig.191. STBY Threshold
2.85
60
50
40
1.0
VIN=3.8V
VIN=3.8V
STBY=0V
VIN=3.8V
STBY=1.5V
Io=0mA
2.84
2.83
2.82
2.81
0.9
0.8
0.7
0.6
STBY=1.5V
Io=0.1mA
2.80
2.79
2.78
2.77
30
20
10
0
0.5
0.4
0.3
0.2
0.1
0.0
2.76
2.75
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig.193. IGND - Temp
Fig.194. IGND - Temp (STBY)
Fig.192. VOUT - Temp
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
26/41
Technical Note
BU□□TD2WNVX series
●Reference data BU28TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
0
2.90
2.85
2.85
2.80
2.80
2.75
2.75
2.70
Fig.196. Load Response
Fig.195. Load Response
100
50
0
100
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
2.90
2.85
2.85
2.80
2.80
2.75
2.75
2.70
Fig.198. Load Response
Fig.197. Load Response
200
100
0
200
IOUT=0mA→200mA
100
IOUT=200mA→0mA
0
3.00
2.90
2.90
2.80
2.80
2.70
2.70
2.60
Fig.200. Load Response
Fig.199. Load Response
100
100
50
0
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
2.85
2.80
2.90
2.85
2.80
2.75
2.75
2.70
Fig.202. Load Response
Fig.201. Load Response
www.rohm.com
2011.01 - Rev.B
27/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU28TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
2.0
1.0
0.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.203. Start Up Time
Iout=0mA
Fig.204. Start Up Time
Iout=200mA
4.0
2.0
0.0
4.0
2.0
0.0
VIN=STBY=0→3.8V
VIN=STBY=0→3.8V
4.0
2.0
4.0
2.0
0.0
0.0
Fig.206. Start Up Time
(VIN=STBY) Iout=200mA
Fig.205. Start Up Time
(VIN=STBY) Iout=0mA
5.8
2.0
1.0
0.0
VIN=3.8→4.8V→3.8V
4.8
3.8
STBY=1.5→0V
2.81
2.80
4.0
2.0
2.79
2.78
0.0
Fig.208. VIN Response
Fig.207. Discharge Time
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
28/41
Technical Note
BU□□TD2WNVX series
●Reference data BU30TD2WNVX (Ta=25℃ unless otherwise specified.)
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
2.95
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
100
80
60
40
20
0
Temp=25°C
Temp=25°C
VIN=STBY
Io=0uA
VIN=STBY
Temp=85°C
Temp=25°C
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
VIN=STBY
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
5.5
0.2
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.209. Output Voltage
Fig.210. Line Regulation
Fig.211. Circuit Current IGND
3.05
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=4.0V
VIN=4.0V
3.04
STBY=1.5V
STBY=1.5V
Temp=85°C
3.03
3.02
Temp=25°C
Temp=85°C
3.01
3.00
2.99
2.98
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
2.97
Temp=-40°C
2.96
2.95
Temp=85°C
0.15
0
0.05
0.1
0.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.05
0.1
0.15
0.2
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.212. VSTBY - ISTBY
Fig.214. Load Regulation
Fig.213. IOUT - IGND
0.30
0.25
0.20
0.15
0.10
0.05
0.00
3.5
3.0
3.5
3.0
VIN=4.0V
Io=0mA
Temp=85°C
Temp=25°C
VIN=4.0V
VIN=5.5V
2.5
2.0
1.5
1.0
0.5
0.0
2.5
2.0
1.5
1.0
0.5
0.0
VIN=3.5V
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
Temp=25°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0
0.05
0.1
0.15
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.215. Dropout Voltage
Fig.216. OCP Threshold
Fig.217. STBY Threshold
3.05
3.04
3.03
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=4.0V
VIN=4.0V
STBY=1.5V
Io=0mA
VIN=4.0V
STBY=0V
STBY=1.5V
Io=0.1mA
3.02
3.01
3.00
2.99
2.98
0.5
0.4
0.3
0.2
0.1
0.0
2.97
2.96
2.95
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig.218. VOUT - Temp
Fig.219. IGND - Temp
Fig.220. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
29/41
Technical Note
BU□□TD2WNVX series
●Reference data BU30TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
IOUT=0mA→50mA
IOUT=50mA→0mA
50
0
3.10
3.05
3.05
3.00
3.00
2.95
2.95
2.90
Fig.221. Load Response
Fig.222. Load Response
100
100
50
0
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
3.10
3.05
3.05
3.00
3.00
2.95
2.95
2.90
Fig.223. Load Response
Fig.224. Load Response
IOUT=0mA→200mA
200
200
100
100
0
IOUT=200mA→0mA
0
3.10
3.00
3.20
3.10
2.90
2.80
3.00
2.90
Fig.225. Load Response
Fig.226. Load Response
100
100
50
0
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
3.05
3.00
3.10
3.05
2.95
2.90
3.00
2.95
Fig.227. Load Response
Fig.228. Load Response
www.rohm.com
2011.01 - Rev.B
30/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU30TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
1.0
STBY=0→1.5V
STBY=0→1.5V
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.230. Start Up Time
Iout=200mA
Fig.229. Start Up Time
Iout=0mA
4.0
4.0
2.0
0.0
VIN=STBY=0→4.0V
VIN=STBY=0→4.0V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.232. Start Up Time
(VIN=STBY) Iout=200mA
Fig.231. Start Up Time
(VIN=STBY) Iout=0mA
4.0
2.0
0.0
6.0
5.0
4.0
VIN=4.0→5.0V→4.0V
STBY=1.5→0V
4.0
2.0
3.01
3.00
0.0
2.99
2.98
Fig.233. Discharge Time
Fig.234. VIN Response
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
31/41
Technical Note
BU□□TD2WNVX series
●Reference data BU31TD2WNVX (Ta=25℃ unless otherwise specified.)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.15
3.14
3.13
3.12
3.11
3.10
3.09
3.08
3.07
3.06
3.05
100
80
60
40
20
0
Temp=25°C
Temp=25°C
IO=0uA
VIN=STBY
VIN=STBY
Temp=85°
Temp=25°
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Io=0uA
Io=100uA
Io=50mA
Io=200mA
Temp=-40°C
VIN=STBY
4.5 5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
0
0.5
1
1.5
2
2.5
3
3.5
4
5
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.235. Output Voltage
Fig.237. Circuit Current IGND
Fig.236. Line Regulation
3.15
1.6
100
80
60
40
20
0
VIN=4.1V
VIN=4.1V
STBY=1.5V
3.13
1.4
1.2
1.0
0.8
0.6
STBY=1.5V
Temp=85°C
Temp=25°C
3.11
Temp=85°C
3.09
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=85°C
3.07
3.05
Temp=-40°C
0.05
0
0.1
0.15
0.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0.2
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.239. IOUT - IGND
Fig.240. Load Regulation
Fig.238. VSTBY - ISTBY
0.30
0.25
0.20
0.15
0.10
0.05
0.00
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
VIN=3.6V
VIN=4.1V
VIN=4.1V
Io=0mA
Temp=85°C
VIN=5.5V
Temp=25°C
Temp=25°C
Temp=-40°C
Temp=-40°C
Temp=85°C
Temp=25°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0.5 0.6
0
0.5
1
1.5
0
0.1
0.2
0.3
0.4
0
0.05
0.1
0.15
0.2
Output Current (A)
STBY Voltage (V)
Output Current (A)
Fig.243. STBY Threshold
Fig.241. Dropout Voltage
Fig.242. OCP Threshold
3.15
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=4.1V
STBY=1.5V
Io=0.1mA
VIN=4.1V
STBY=1.5V
Io=0mA
3.14
3.13
3.12
3.11
3.10
3.09
3.08
3.07
3.06
3.05
VIN=4.1V
STBY=0V
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig.244. VOUT - Temp
Fig.245. IGND - Temp
Fig.246. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
32/41
Technical Note
BU□□TD2WNVX series
●Reference data BU31TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
0
100
50
IOUT=0mA→50mA
IOUT=50mA→0mA
0
3.20
3.15
3.15
3.10
3.10
3.05
3.05
3.00
Fig.248. Load Response
Fig.247. Load Response
100
50
0
100
IOUT=0mA→100mA
50
IOUT=100mA→0mA
0
3.20
3.15
3.15
3.10
3.10
3.05
3.05
3.00
Fig.250. Load Response
Fig.249. Load Response
200
100
0
200
IOUT=0mA→200mA
100
IOUT=200mA→0mA
0
3.30
3.20
3.20
3.10
3.10
3.00
3.00
2.90
Fig.252. Load Response
Fig.251. Load Response
100
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
50
0
0
3.15
3.10
3.20
3.15
3.05
3.00
3.10
3.05
Fig.254. Load Response
Fig.253. Load Response
www.rohm.com
2011.01 - Rev.B
33/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU31TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.255. Start Up Time
Iout=0mA
Fig.256. Start Up Time
Iout=200mA
4.0
4.0
2.0
0.0
VIN=STBY=0→4.1V
VIN=STBY=0→4.1V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.258. Start Up Time
(VIN=STBY) Iout=200mA
Fig.257. Start Up Time
(VIN=STBY) Iout=0mA
2.0
6.1
VIN=4.1V→5.1V→4.1V
STBY=1.5→0V
1.0
5.1
4.1
0.0
4.0
2.0
3.11
3.10
0.0
3.09
3.08
Fig.259. Discharge Time
Fig.260. VIN Response
www.rohm.com
2011.01 - Rev.B
34/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU33TD2WNVX (Ta=25℃ unless otherwise specified.)
3.5
100
80
3.35
Temp=25°C
Temp=25°C
VIN=STBY
Io=0uA
VIN=STBY
3.34
3.0
Io=0uA
3.33
Io=100uA
2.5
2.0
3.32
Io=50mA
Temp=85°C
Temp=25°C
Io=200mA
60
3.31
Io=0uA
3.30
3.29
3.28
3.27
3.26
3.25
1.5
1.0
0.5
0.0
Io=100uA
Io=50mA
Io=200mA
40
20
0
Temp=-40°C
VIN=STBY
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
0.2
0.6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig.261. Output Voltage
Fig.262. Line Regulation
Fig.263. Circuit Current IGND
3.35
3.34
3.33
3.32
3.31
1.6
1.4
1.2
1.0
0.8
0.6
100
80
60
40
20
0
VIN=4.3V
VIN=4.3V
STBY=1.5V
STBY=1.5V
Temp=85°C
Temp=25°C
Temp=85°C
3.30
3.29
3.28
3.27
3.26
3.25
Temp=-40°C
0.4
0.2
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
Temp=85°C
0
0.05
0.1
0.15
0.2
1.5
85
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
Output Current (A)
Input Voltage (V)
Output Current (A)
Fig.265. IOUT - IGND
Fig.266. Load Regulation
Fig.264. VSTBY - ISTBY
3.50
3.00
0.30
3.5
3.0
VIN=4.3V
Io=0mA
VIN=3.8V
VIN=4.3V
0.25
0.20
0.15
0.10
0.05
0.00
Temp=85°C
VIN=5.5V
2.50
2.00
1.50
1.00
0.50
0.00
2.5
2.0
1.5
1.0
0.5
0.0
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=25°C
Temp=-40°C
Temp=85°C
VIN = 0.98 x VOUT
STBY=1.5V
STBY=1.5V
0
0.05
0.1
0.15
0.2
0
0.1
0.2
0.3
0.4 0.5
0
0.5
1
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig.267. Dropout Voltage
Fig.268. OCP Threshold
Fig.269. STBY Threshold
3.35
3.34
3.33
3.32
3.31
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
VIN=4.3V
VIN=4.3V
STBY=1.5V
Io=0mA
VIN=4.3V
STBY=0V
STBY=1.5V
Io=0.1mA
3.30
3.29
3.28
3.27
3.26
3.25
0.5
0.4
0.3
0.2
0.1
0.0
-40
-15
10
35
60
85
-40
-15
10
35
60
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig.270. VOUT - Temp
Fig.271. IGND - Temp
Fig.272. IGND - Temp (STBY)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
35/41
Technical Note
BU□□TD2WNVX series
●Reference data BU33TD2WNVX (Ta=25℃ unless otherwise specified.)
100
50
100
50
0
IOUT=0mA→50mA
IOUT=50mA→0mA
0
3.40
3.35
3.35
3.30
3.30
3.25
3.25
3.20
Fig.273. Load Response
Fig.274. Load Response
100
50
100
50
0
IOUT=0mA→100mA
IOUT=100mA→0mA
0
3.35
3.30
3.40
3.35
3.25
3.20
3.30
3.25
Fig.275. Load Response
Fig.276. Load Response
200
100
0
200
100
IOUT=0mA→200mA
IOUT=200mA→0mA
0
3.40
3.30
3.50
3.40
3.20
3.10
3.30
3.20
Fig.277. Load Response
Fig.278. Load Response
100
50
0
100
IOUT=50mA→100mA
IOUT=100mA→50mA
50
0
3.40
3.35
3.35
3.30
3.30
3.25
3.25
3.20
Fig.280. Load Response
Fig.279. Load Response
www.rohm.com
2011.01 - Rev.B
36/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Reference data BU33TD2WNVX (Ta=25℃ unless otherwise specified.)
2.0
1.0
0.0
2.0
STBY=0→1.5V
STBY=0→1.5V
1.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.281. Start Up Time
Iout=0mA
Fig.282. Start Up Time
Iout=200mA
4.0
2.0
0.0
4.0
VIN=STBY=0→4.3V
VIN=STBY=0→4.3 V
2.0
0.0
4.0
2.0
4.0
2.0
0.0
0.0
Fig.284. Start Up Time
(VIN=STBY) Iout=200mA
Fig.283. Start Up Time
(VIN=STBY) Iout=0mA
2.0
1.0
6.3
5.3
4.3
VIN=4.3V→5.3V→5.3V
STBY=1.5→0V
0.0
4.0
2.0
3.31
3.30
0.0
3.29
3.28
Fig.285. Discharge Time
Fig.286. VIN Response
www.rohm.com
2011.01 - Rev.B
37/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
About power dissipation (Pd)
As for power dissipation, an approximate estimate of the heat reduction characteristics and internal power consumption of
IC are shown, so please use these for reference. Since power dissipation changes substantially depending on the
implementation conditions (board size, board thickness, metal wiring rate, number of layers and through holes, etc.), it is
recommended to measure Pd on a set board. Exceeding the power dissipation of IC may lead to deterioration of the original
IC performance, such as causing operation of the thermal shutdown circuit or reduction in current capability. Therefore, be
sure to prepare sufficient margin within power dissipation for usage.
Calculation of the maximum internal power consumption of IC (PMAX)
PMAX=(VIN-VOUT)×IOUT(MAX.) (VIN: Input voltage VOUT: Output voltage IOUT(MAX): Maximum output current)
○Measurement conditions
Standard ROHM Board
Top Layer (Top View)
Bottom Layer (Top View)
Evaluation Board 1
Top Layer (Top View)
Bottom Layer (Top View)
Layout of Board for
Measurement
IC Implementation
Position
Measurement State
Board Material
Board Size
With board implemented (Wind speed 0 m/s) With board implemented (Wind speed 0 m/s)
Glass epoxy resin (Double-side board)
70 mm x 70 mm x 1.6 mm
Metal (GND) wiring rate: Approx. 0%
Metal (GND) wiring rate: Approx. 50%
Diameter 0.5mm x 6 holes
0.56W
Glass epoxy resin (Double-side board)
40 mm x 40 mm x 1.6 mm
Metal (GND) wiring rate: Approx. 50%
Metal (GND) wiring rate: Approx. 50%
Diameter 0.5mm x 25 holes
0.39W
Top layer
Wiring
Rate
Bottom layer
Through Hole
Power Dissipation
Thermal Resistance
θja=178.6°C/W
θja=256.4℃/W
0.6
0.56W
0.5
Standard ROHM Board
0.4
0.39W
0.3
Evaluation Board 1
0.2
0.1
0
* Please design the margin so that PMAX
becomes is than Pd (PMAXPd) within the
usage temperature range.
0
25
50
75
100
125
85
Ta [ ]
℃
Figure 287. SSON004X1010 Power dissipation heat reduction characteristics (Reference)
www.rohm.com
2011.01 - Rev.B
38/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Device Name and Marking
Device Name： BU□□TD2WNVX
a
Lot No.
3 STBY
Symbol
Description
4 VIN
Marking
Output
□□
Voltage
1.2V typ.
1.5V typ.
1.8V typ.
1.9V typ.
2.5V typ.
2.6V typ.
2.7V typ.
2.8V typ.
3.0V typ.
3.1V typ.
3.3V typ.
12
15
18
19
25
26
27
28
30
31
33
B
C
D
F
H
J
1 VOUT
a
2 GND
Marking
K
L
P
Q
U
Heatshink is
connected to GND
(Unit:mm)
Fig.288. Package dimension and Marking
www.rohm.com
2011.01 - Rev.B
39/41
© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BU□□TD2WNVX series
●Notes for use
1) About absolute maximum rating
Breakage may occur when absolute maximum ratings such as applied voltage and operating temperature range are
exceeded. Short mode or open mode cannot be specified at occurrence of a break, so please prepare physical safety
measures (e.g., fuse) if such special mode in which the absolute maximum rating is exceeded can be assumed.
2) About GND potential
Please be sure that the potential of the GND terminal is the lowest in any operating condition.
3) About thermal design
Please provide thermal design with sufficient margin, taking power dissipation (Pd) in actual usage conditions into
consideration.
4) About short between pins and misattachment
Please be careful regarding the IC direction and misalignment at attachment onto a printed circuit board. Misattachment
may cause a break of IC. Short caused by foreign matter between outputs, output and power supply, or GNDs may also
lead to a break.
5) About operation in a strong electromagnetic field
Please note that usage in a strong electromagnetic field may cause malfunction.
6) About common impedance
Please give due consideration to wiring of the power source and GND by reducing common-mode ripple or making ripple
as small as possible (e.g., making the wiring as thick and short as possible, or reducing ripple by LC), etc.
7) About STBY terminal voltage
Set STBY terminal voltage to 0.3 V or less to put each channel into a standby state and to 1.2 V or more to put each
channel into an operating state. Do not fix STBY terminal voltage to 0.3 V or more and 1.2 V or less or do not lengthen
the transition time. This may cause malfunction or failure.
When shorting the VIN terminal and STBY terminal for usage, the status will be “STBY=VIN=LOW” at turning the power
OFF, and discharge of the VOUT terminal cannot operate, which means voltage may remain for a certain time in the
VOUT terminal. Since turning the power ON again in this state may cause overshoot, turn the power ON for use after the
VOUT terminal is completely discharged.
8) About overcurrent protection circuit
Output has a built-in overcurrent protection circuit, which prevents IC break at load short. Note that this protection circuit
is effective for prevention of breaks due to unexpected accidents. Please avoid usage by which the protection circuit
operates continuously.
9) About thermal shutdown
Output is OFF when the thermal circuit operates since a temperature protection circuit is built in to prevent thermal
breakdown. However, it recovers when the temperature returns to a certain temperature. The thermal circuit operates at
emergency such as overheating of IC. Since it is prepared to prevent IC breakdown, please do not use it in a state in
which protection works.
Reverse current
About reverse current
For applications on which reverse current is assumed to flow into IC,
it is recommended to prepare a path to let the current out
putting a bypass diode between the VIN-VOUT terminals.
VIN
OUT
STBY
GND
Fig. 289. Example of bypass diode connection
About testing on a set board
When connecting a capacitor to a terminal with low impedance for testing on a set board, please be sure to discharge for
each process since IC may be stressed. As a countermeasure against static electricity, prepare grounding in the assembly
process and take sufficient care in transportation and storage. In addition, when connecting a capacitor to a jig in a testing
process, please do so after turning the power OFF and remove it after turning the power OFF.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
40/41
Technical Note
BU□□TD2WNVX series
●Ordering part number
B
D
1
0
T
D
2 W
N
V
X - T
L
Part No.
Output Voltage
Line up
Package
Packaging and forming specification
TL: Embossed tape and reel
10 : 1.0V
12 : 1.2V
15 : 1.5V
18 : 1.8V
1J : 1.85V
19 : 1.9V
20 : 2.0V
21 : 2.1V
23 : 2.3V
25 : 2.5V
26 : 2.6V
27 : 2.7V
28 : 2.8V
2J : 2.85V
29 : 2.9V
30 : 3.0V
31 : 3.1V
32 : 3.2V
33 : 3.3V
34 : 3.4V
NVX : SSON004X1010
SSON004X1010
1.0 0.1
<Tape and Reel information>
1PIN MARK
Tape
Embossed carrier tape
5000pcs
Quantity
TL
Direction
of feed
S
The direction is the 1pin of product is at the lower left when you hold
reel on the left hand and you pull out the tape on the left hand
(
)
0.05
0.65 0.05
3-C0.18
R0.05
1
2
45º
4
3
Direction of feed
1pin
0.25 0.05
Reel
Order quantity needs to be multiple of the minimum quantity.
(Unit : mm)
∗
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.01 - Rev.B
41/41
Notice
N o t e s
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-
controller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
R1120
A
相关型号：
BD2JTD2WNVX-TL
Fixed Positive LDO Regulator, 2.85V, 0.5V Dropout, CMOS, PDSO4, 1 X 1 MM, 0.60 MM PITCH, ROHS COMPLIANT, SSON-4
ROHM
©2020 ICPDF网 联系我们和版权申明