NCP4671DMX15TCG [ONSEMI]
400 mA, Dual Rail Ultra Low Dropout Linear Regulator; 400毫安，双滑轨超低压降线性稳压器
| 型号： | NCP4671DMX15TCG |
| 厂家： | 
ONSEMI |
| 描述： | 400 mA, Dual Rail Ultra Low Dropout Linear Regulator |
| 文件： | 总23页 (文件大小：1139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCP4671
400 mA, Dual Rail Ultra Low
Dropout Linear Regulator
The NCP4671 is a CMOS Dual Supply Rail Linear Regulator
designed to provide very low output voltages. The Dual Rail
architecture which separates the power for the LDO control circuitry
(provided via the Vbias pin) from the main power path (Vin) offers
ultra−low dropout performance, allowing the device to operate from
input voltages down to 0.9 V and to generate a fixed high accuracy
output voltage as low as 0.6 V.
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MARKING
DIAGRAMS
The NCP4671 offers excellent transient response with very low
quiescent currents. The family is available in a variety of packages:
SC−70, SOT23 and a small, ultra thin 1.2 x 1.2 x 0.4mm XDFN.
XXX
XMM
SC−70
CASE 419A
(In Development)
1
Features
• Bias Supply Voltage Range : 2.4 V to 5.25 V (V
< 0.8 V)
≥ 0.8 V)
OUT
Set V
+ 1.6 V to 5.25 V (V
OUT
OUT
• Power Input Voltage Range : 0.9 V to V
(V
< 0.8 V)
≥ 0.8 V)
BIAS
OUT
XX
MM
Set V
+ 0.1 V to V
(V
OUT
BIAS
OUT
XDFN6
CASE 711AA
• Output Voltage Range: 0.6 to 1.5 V (available at 0.1 steps)
• Very Low Dropout: 180 mV Typ. at 400 mA
• Quiescent Current: 28 mA
1
• Standby Current: 0.1 mA
XXXMM
•
15 mV Output Voltage Accuracy (T = 25°C)
A
1
• High PSRR: 80 dB at 1 kHz (Ripple at VIN)
SOT−23−5
CASE 1212
50 dB at 1 kHz (Ripple at VBIAS)
• Current Fold Back Protection Typ. 120 mA
• Available in XDFN, SC−70, SOT23 Package
• These are Pb−Free Devices
XX, XXX= Specific Device Code
M, MM = Date Code
A
Y
W
G
= Assembly Location
= Year
= Work Week
Typical Applications
• Battery Powered Equipments
• Portable Communication Equipments
• Cameras, VCRs and Camcorders
= Pb−Free Package
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 20 of this data sheet.
NCP4671x
VIN
VIN
VBIAS
VOUT
VOUT
DC/DC
C1
1m
C2
1m
C3
2m 2
converter
GND
CE
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2012
1
Publication Order Number:
February, 2012 − Rev. 2
NCP4671/D
NCP4671
NCP4671Hxxxxxxxx
NCP4671Dxxxxxxxx
VBIAS
VBIAS
VIN
VIN
VOUT
VOUT
Vref
Vref
UVLO
Current
Limit
UVLO
Current
Limit
CE
GND
CE
GND
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
XDFN
Pin No.
SC−70
Pin No.
SOT23
Pin Name
VBIAS
GND
CE
Description
1
2
3
4
5
6
1
2
5
4
−
3
4
2
3
1
−
5
Input Pin 1
Ground Pin
Chip Enable Pin (“H” Active)
Input Pin 2
VIN
NC
Not connected
Output Pin
VOUT
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Bias Supply Input Voltage (Note 1)
V
6.0
V
V
BIAS
Power Supply Input Voltage (for Driver) (Note 1)
Output Voltage
VIN
VOUT
VCE
−0.3 to VBIAS + 0.3
−0.3 to VIN + 0.3
V
Chip Enable Input
6.0
500
V
Output Current
I
mA
mW
OUT
Power Dissipation XDFN
P
400
D
Power Dissipation SC−70
380
Power Dissipation SOT23
Maximum Junction Temperature
Storage Temperature
420
TJ(MAX)
TSTG
150
°C
°C
V
−55 to 125
2000
200
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
ESDHBM
ESDMM
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
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2
NCP4671
THERMAL CHARACTERISTICS
Rating
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SOT23
Symbol
Value
Unit
Thermal Characteristics, XDFN
R
250
°C/W
q
JA
R
238
263
°C/W
°C/W
q
JA
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SC−70
Thermal Resistance, Junction−to−Air
R
q
JA
ELECTRICAL CHARACTERISTICS
−40°C ≤ T ≤ 85°C, V
= V = 3.6 V, V = V
+ 0.5 V, I
= 1 mA, C
= C = 1.0 mF, C
= 2.2 mF, unless otherwise
A
BIAS
CE
IN
OUT(NOM)
OUT
BIAS
IN
OUT
noted. Typical values are at T = +25°C.
A
Parameter
Test Conditions
Symbol
Min
2.4
Typ
Max
5.25
5.25
Unit
Operating Supply Input Voltage
(Note 3)
V
< 0.8 V
VBIAS
V
OUT
OUT
V
≥ 0.8 V
V
V
+
+
OUT
1.6
Operating Power Input Voltage
(Note 3)
V
OUT
< 0.8 V
VIN
0.9
VBIAS
VBIAS
V
V
OUT
≥ 0.8 V
OUT
0.1
Output Voltage
TA = +25 °C
VOUT
−15
−20
+15
+20
mV
TA = −40°C to +85°C
Output Voltage Temp. Coefficient
Line Regulation
T = −40°C to +85°C
50
0.02
0.02
30
ppm/°C
A
V
BIAS
= 2.4V to 5.0V
Line
0.10
0.10
50
%/V
Reg
V
= VOUT + 0.3 V to 2.4 V
IN
Load Regulation
IOUT = 1 mA to 400 mA
Load
mV
Reg
Dropout Voltage
Please refer to following detailed table.
Output Current
IOUT
400
0.8
mA
mA
mA
mA
V
Short Current Limit
Quiescent Current
Standby Current
V
= 0 V
I
120
28
OUT
IOUT = 0 mA
= 0 V, T = 25°C
SC
IQ
40
3
V
CE
ISTB
VCEH
VCEL
IPD
0.1
A
CE Pin Threshold Voltage
CE Input Voltage “H”
CE Input Voltage “L”
0.3
CE Pull Down Current
1
mA
VIN Under Voltage Lock Out
I
= 1 mA
V
V
+
V
OUT
0.1
+
V
OUT
IN_UVLO
OUT
0.05
Power Supply Rejection Ratio
I
= 30 mA, f = 1 kHz, V Ripple 0.2 V
P−P
PSRR
80
50
dB
OUT
IN
I
= 30 mA, f = 1 kHz, V
Ripple
OUT
BIAS
0.2 V
P−P
Output Noise Voltage
V
= 0.6 V, I
= 30 mA, f = 10 Hz to
VN
70
50
mV
rms
OUT
OUT
100 kHz
Low Output Nch Tr. On Resistance
D Version only, V = 3.6 V, V = “L“
R
LOW
W
BIAS
CE
3. If Input Voltage range is between 5.25 V and 5.50 V, the total operational time must be within 500 hrs.
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NCP4671
DROPOUT VOLTAGE (V [V])
DO
V
DO
[V] @ I
= 300 mA
V
DO
[V] @ I
= 400 mA
OUT
OUT
T = −405C
T = −405C
A
A
to +855C
3.6 V
to +855C
3.6 V
T = 255C
T = 255C
V
[V] @ I
= 200 mA (T = 255C)
A
A
DO
OUT
A
2.5 V
0.094
0.094
0.098
0.098
3.0 V
0.093
0.093
0.093
0.094
0.094
0.098
0.098
0.098
*
3.3 V
3.6 V
4.2 V
0.092
0.092
0.092
0.092
0.092
0.095
0.095
0.095
0.095
5.0 V
0.091
0.092
0.092
0.092
0.092
0.094
0.095
0.095
0.095
3.6 V
0.115
0.120
0.120
0.120
0.120
0.130
0.130
0.130
0.130
3.6 V
0.180
0.180
0.180
0.180
0.180
0.180
0.180
0.180
0.180
V
OUT
/ V
BIAS
0.6 V
0.7 V
0.8 V
0.9 V
1.0 V
1.2 V
1.3 V
1.4 V
1.5 V
0.093
0.093
0.093
0.093
0.093
0.096
0.096
0.096
0.096
0.092
0.180
0.190
0.190
0.190
0.190
0.200
0.200
0.200
0.200
0.320
0.320
0.300
0.300
0.280
0.280
0.260
0.260
0.260
0.092
0.092
0.092
0.092
0.095
0.095
*
0.095
0.095
*VBIAS voltage must be equal or more than V
+ 1.6 V
OUT(NOM)
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NCP4671
TYPICAL CHARACTERISTICS
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.7
V
= 2.40 V
2.40 V
V
= 3.60 V
3.60 V
BIAS
BIAS
0.6
0.5
0.4
0.3
0.2
0.1
0.0
V
IN
= 0.79 V
V
IN
= 0.79 V
1.10 V
1.10 V
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
I
I
OUT
OUT
Figure 3. Output Voltage vs. Output Current
Figure 4. Output Voltage vs. Output Current
0.6 V Version (TA = 255C)
0.6 V Version (TA = 255C)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.2
1.0
0.8
0.6
0.4
0.2
0.0
V
= 5.25 V
V
= 2.60 V
BIAS
BIAS
V
IN
= 1.22 V
V
= 0.79 V
IN
1.50 V
2.60 V
1.10 V
5.25 V
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
I
I
OUT
OUT
Figure 5. Output Voltage vs. Output Current
Figure 6. Output Voltage vs. Output Current
0.6 V Version (TA = 255C)
1.0 V Version (TA = 255C)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.2
1.0
0.8
0.6
0.4
0.2
0.0
V
BIAS
= 3.60 V
V
BIAS
= 5.25 V
V
IN
= 1.22 V
V
IN
= 1.22 V
1.50 V
1.50 V
3.60 V
5.25 V
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
0
100 200 300 400 500 600 700 800 900
, OUTPUT CURRENT (mA)
I
I
OUT
OUT
Figure 7. Output Voltage vs. Output Current
Figure 8. Output Voltage vs. Output Current
1.0 V Version (TA = 255C)
1.0 V Version (TA = 255C)
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NCP4671
TYPICAL CHARACTERISTICS
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.6
1.4
1.2
1.0
0.8
0.6
V
IN
= 1.72 V
V
IN
= 1.76 V
2.00 V
2.00 V
3.60 V
3.10 V
0.4
0.2
V
= 3.10 V
V
BIAS
= 3.60 V
BIAS
0.0
0
100 200 300 400 500 600 700 800 900 1000
, OUTPUT CURRENT (mA)
0
100 200 300 400 500 600 700 800 900 1000
, OUTPUT CURRENT (mA)
I
I
OUT
OUT
Figure 9. Output Voltage vs. Output Current
Figure 10. Output Voltage vs. Output Current
1.5 V Version (TA = 255C)
1.5 V Version (TA = 255C)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V
IN
= 1.76 V
2.00 V
I
= 1 mA
OUT
30 mA
50 mA
5.25 V
V
BIAS
= 5.25 V
V
4
= 2.4 V
5
BIAS
0
100 200 300 400 500 600 700 800 900 1000
, OUTPUT CURRENT (mA)
0
1
2
3
I
V
IN
, INPUT VOLTAGE (V)
OUT
Figure 11. Output Voltage vs. Output Current
Figure 12. Output Voltage vs. Input Voltage
1.5 V Version (TA = 255C)
0.6 V Version (TA = 255C)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
I
= 1 mA
OUT
I
= 1 mA
OUT
30 mA
50 mA
30 mA
50 mA
V
BIAS
= 3.6 V
5
V
BIAS
= 5.25 V
5
0
1
2
3
4
0
1
2
V , INPUT VOLTAGE (V)
IN
3
4
V
IN
, INPUT VOLTAGE (V)
Figure 13. Output Voltage vs. Input Voltage
Figure 14. Output Voltage vs. Input Voltage
0.6 V Version (TA = 255C)
0.6 V Version (TA = 255C)
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NCP4671
TYPICAL CHARACTERISTICS
1.2
1
1.2
1
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
0
I
= 1 mA
OUT
I
= 1 mA
OUT
30 mA
50 mA
30 mA
50 mA
V
BIAS
= 2.6 V
5
V
BIAS
= 3.2 V
5
0
0
1
2
3
4
0
1
2
3
4
V
IN
, INPUT VOLTAGE (V)
V , INPUT VOLTAGE (V)
IN
Figure 15. Output Voltage vs. Input Voltage
Figure 16. Output Voltage vs. Input Voltage
1.0 V Version (TA = 255C)
1.0 V Version (TA = 255C)
1.2
1
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
I
= 1 mA
OUT
I
= 1 mA
OUT
30 mA
50 mA
0.8
0.6
0.4
0.2
0
30 mA
50 mA
V
BIAS
= 5.25 V
5
V
BIAS
= 3.1 V
5
0
1
2
3
4
0
1
2
3
4
V
IN
, INPUT VOLTAGE (V)
V , INPUT VOLTAGE (V)
IN
Figure 17. Output Voltage vs. Input Voltage
Figure 18. Output Voltage vs. Input Voltage
1.0 V Version (TA = 255C)
1.5 V Version (TA = 255C)
1.6
1.4
1.2
1
1.6
1.4
1.2
1
I
= 1 mA
OUT
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
I
= 1 mA
OUT
30 mA
30 mA
50 mA
50 mA
V
= 3.6 V
5
V
BIAS
= 5.25 V
5
BIAS
0
1
2
3
4
0
1
2
3
4
V
, INPUT VOLTAGE (V)
IN
V
, INPUT VOLTAGE (V)
IN
Figure 19. Output Voltage vs. Input Voltage
Figure 20. Output Voltage vs. Input Voltage
1.5 V Version (TA = 255C)
1.5 V Version (TA = 255C)
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NCP4671
TYPICAL CHARACTERISTICS
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.2
1
I
= 1 mA
OUT
I
= 1 mA
OUT
30 mA
0.8
0.6
0.4
0.2
0
30 mA
50 mA
50 mA
0
1
2
3
4
5
0
1
2
3
4
5
V
BIAS
, BIAS VOLTAGE (V)
V
BIAS
, BIAS VOLTAGE (V)
Figure 21. Output Voltage vs. Bias Voltage 0.6 V
Figure 22. Output Voltage vs. Bias Voltage 1.0 V
Version (TA = 255C)
Version (TA = 255C)
1.6
1.4
1.2
1
0.61
0.605
0.6
I
= 1 mA
OUT
30 mA
0.8
0.6
0.4
0.2
0
0.595
0.59
50 mA
0.585
0.58
0
1
2
3
4
5
−50
−25
0
25
50
75
100
V
BIAS
, BIAS VOLTAGE (V)
T , JUNCTION TEMPERATURE (°C)
J
Figure 23. Output Voltage vs. Bias Voltage 1.5 V
Figure 24. Output Voltage vs. Temperature 0.6 V
Version
Version (TA = 255C)
1.505
1.5
1.015
1.01
1.005
1
1.495
1.49
1.485
1.48
0.995
0.99
0.985
−50
−25
0
25
50
75
100
−50
−25
0
25
50
75
100
T , JUNCTION TEMPERATURE (°C)
J
T , JUNCTION TEMPERATURE (°C)
J
Figure 26. Output Voltage vs. Temperature 1.5 V
Version
Figure 25. Output Voltage vs. Temperature 1.0 V
Version
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NCP4671
TYPICAL CHARACTERISTICS
14
12
10
8
10
8
5.25 V
3.6 V
5.25 V
6
3.6 V
6
4
4
2
2
V
V
= 2.4 V
V
BIAS
= 2.4 V
BIAS
0
0
0
1
2
3
4
5
0
1
2
3
4
5
, INPUT VOLTAGE (V)
V , INPUT VOLTAGE (V)
IN
IN
Figure 27. Quiescent Current vs. Input Voltage
0.6 V Version
Figure 28. Quiescent Current vs. Input Voltage
1.0 V Version
10
9
8
7
6
5
4
3
2
1
0
40
36
32
28
24
20
V
V
= 3.6 V
= 1.1 V
BIAS
IN
5.25 V
3.6 V
V
= 2.4 V
BIAS
0
1
2
3
4
5
−50
−25
0
25
50
75
100
V
IN
, INPUT VOLTAGE (V)
T , JUNCTION TEMPERATURE (°C)
J
Figure 29. Quiescent Current vs. Input Voltage
1.5 V Version
Figure 30. Supply Current vs. Temperature 0.6 V
Version
40
36
32
28
24
20
40
36
32
28
24
20
V
V
= 3.6 V
= 1.5 V
V
V
= 3.6 V
= 2.0 V
BIAS
BIAS
IN
IN
−50
−25
0
25
50
75
100
−50
−25
0
25
50
75
100
T , JUNCTION TEMPERATURE (°C)
J
T , JUNCTION TEMPERATURE (°C)
J
Figure 31. Supply Current vs. Temperature 1.0 V
Version
Figure 32. Supply Current vs. Temperature 1.5 V
Version
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NCP4671
TYPICAL CHARACTERISTICS
200
160
120
80
200
160
T = 85°C
J
T = 85°C
J
120
80
40
0
25°C
−40°C
25°C
−40°C
40
0
50
100
150
200
250
300
350
400
50
100
150
200
250
300
350
400
I , OUTPUT CURRENT (mA)
OUT
I , OUTPUT CURRENT (mA)
OUT
Figure 33. Dropout Voltage vs. Output Current
0.6 V Version
Figure 34. Dropout Voltage vs. Output Current
1.0 V Version
100
80
60
40
20
0
250
200
150
100
50
I
= 1 mA
OUT
T = 85°C
J
30 mA
50 mA
25°C
−40°C
V
IN
= 1.1 V + 200 mV modulation,
PP
V
BIAS
= 3.6 V, C
= 1 mF
BIAS
0
100
1k
10k
100k
1M
10M
50
100
150
200
250
300
350
400
I , OUTPUT CURRENT (mA)
OUT
FREQUENCY (Hz)
Figure 35. Dropout Voltage vs. Output Current
1.5 V Version
Figure 36. PSRR vs. Frequency 0.6 V Version
100
80
60
40
20
0
100
90
80
70
60
50
40
30
20
10
0
I
= 1 mA
I
= 1 mA
OUT
OUT
30 mA
= 1.5 V + 200 mV modulation,
30 mA
= 2.0 V + 200 mV modulation,
V
IN
V
IN
PP
PP
V
= 3.6 V, C
= 1 mF
V
= 3.6 V, C
= 1 mF
BIAS
BIAS
BIAS
BIAS
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 37. PSRR vs. Frequency 1.0 V Version
Figure 38. PSRR vs. Frequency 1.5 V Version
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10
NCP4671
TYPICAL CHARACTERISTICS
100
80
60
40
20
0
30 mA
I
= 1 mA
OUT
150 mA
1M
V
= 1.1 V, C = 2.2 mF,
IN
IN
V
BIAS
= 3.6 V + 200 mV modulation
PP
100
1k
10k
100k
10M
FREQUENCY (Hz)
Figure 39. PSRR vs. Frequency 0.6 V Version
100
80
60
40
20
0
30 mA
I
= 1 mA
OUT
150 mA
1M
V
= 1.5 V, C = 2.2 mF,
IN
IN
V
= 3.6 V + 200 mV modulation
BIAS
PP
100
1k
10k
100k
10M
FREQUENCY (Hz)
Figure 40. PSRR vs. Frequency 1.0 V Version
100
90
80
70
60
50
40
30
20
10
0
30 mA
I
= 1 mA
OUT
150 mA
V
= 2.0 V, C = 2.2 mF,
IN
IN
V
= 3.6 V + 200 mV modulation
BIAS
PP
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 41. PSRR vs. Frequency 1.5 V Version
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11
NCP4671
TYPICAL CHARACTERISTICS
4.2
3.6
3.0
2.4
0.66
0.64
0.62
0.60
0.58
0.56
0.54
V
= 1.1 V, C = 2.2 mF,
IN
= Step 2.4 V to 3.6 V
IN
V
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 42. Line Transients Response, 0.6 V
Version
4.2
3.6
3.0
2.4
1.04
1.02
1.00
0.98
0.96
0.94
V
= 1.5 V, C = 2.2 mF,
IN
= Step 2.4 V to 3.6 V
IN
V
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 43. Line Transients Response, 1.0 V
Version
4.2
3.6
3.0
2.4
1.56
1.54
1.52
1.50
1.48
1.46
1.44
V
= 2.0 V, C = 2.2 mF,
IN
= Step 2.4 V to 3.6 V
IN
V
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 44. Line Transients Response, 1.5 V
Version
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12
NCP4671
TYPICAL CHARACTERISTICS
2.6
2.1
1.6
1.1
0.604
0.602
0.600
0.598
0.596
0.594
V
= Step 1.1 V to 2.1 V,
IN
V
BIAS
= 3.6 V, C
= 1 mF
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 45. Line Transients Response, 0.6 V
Version
3.0
2.5
2.0
1.5
1.004
1.002
1.000
0.998
0.996
0.994
V
= Step 1.5 V to 2.5 V,
IN
V
BIAS
= 3.6 V, C
= 1 mF
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 46. Line Transients Response, 1.0 V
Version
3.5
3.0
2.5
2.0
1.504
1.502
1.500
1.498
1.496
1.494
V
= Step 2.0 V to 3.0 V,
IN
V
BIAS
= 3.6 V, C
= 1 mF
BIAS
0
20 40 60 80 100 120 140 160 180 200
t (ms)
Figure 47. Line Transients Response, 1.5 V
Version
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13
NCP4671
TYPICAL CHARACTERISTICS
600
400
200
0
0.64
0.62
0.60
0.58
0.56
0.54
V
C
= 1.1 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 48. Load Transients Response, 0.6 V
Version, IOUT Step 1 mA to 400 mA
600
400
200
0
1.06
1.04
1.02
1.00
0.98
0.96
0.94
V
C
= 1.5 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 49. Load Transients Response, 1.0 V
Version, IOUT Step 1 mA to 400 mA
600
400
200
0
1.56
1.54
1.52
1.50
1.48
1.46
1.44
V
C
= 2.0 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 50. Load Transients Response, 1.5 V
Version, IOUT Step 1 mA to 400 mA
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14
NCP4671
TYPICAL CHARACTERISTICS
150
100
50
0
0.610
0.605
0.600
0.595
0.590
0.585
V
C
= 1.1 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 51. Load Transients Response, 0.6 V
Version, IOUT Step 50 mA to 100 mA
150
100
50
0
1.010
1.005
1.000
0.995
0.990
0.985
V
C
= 1.5 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 52. Load Transients Response, 1.0 V
Version, IOUT Step 50 mA to 100 mA
150
100
50
0
1.510
1.505
1.500
1.495
1.490
1.485
V
C
= 2.0 V, V
= 2.2 mF, C
= 3.6 V,
IN
IN
BIAS
= 1 mF
BIAS
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 53. Load Transients Response, 1.5 V
Version, IOUT Step 50 mA to 100 mA
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15
NCP4671
TYPICAL CHARACTERISTICS
1.65
1.10
0.55
0.00
V
IN
I
= 30 mA
OUT
I
= 1 mA
OUT
0.6
0.4
0.2
0.0
I
= 250 mA
OUT
V
BIAS
= V = 3.6 V,
CE
C
= 2.2 mF
OUT
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 54. Turn On Behavior, 0.6 V Version
2.25
1.50
0.75
0.00
V
IN
I
= 400 mA
OUT
I
= 1 mA
OUT
1.0
0.8
0.6
0.4
0.2
0.0
I
= 30 mA
OUT
V
BIAS
= V = 3.6 V,
CE
C
= 2.2 mF
OUT
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 55. Turn On Behavior, 1.0 V Version
3
V
IN
2
1
0
I
= 30 mA
OUT
2.0
1.5
1.0
0.5
0.0
I
= 1 mA
OUT
I
= 400 mA
OUT
V
BIAS
= V = 3.6 V,
CE
C
= 2.2 mF
OUT
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 56. Turn On Behavior, 1.5 V Version
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16
NCP4671
TYPICAL CHARACTERISTICS
5.4
3.6
1.8
0
Chip Enable
I
= 30 mA
OUT
I
= 1 mA
OUT
0.6
0.4
0.2
0.0
I
= 250 mA
OUT
V
IN
= 1.1 V, V
= 3.6 V,
BIAS
C
= C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 57. Turn On Behavior with CE, 0.6 V
Version
5.4
Chip Enable
3.6
1.8
0
I
= 30 mA
OUT
I
= 1 mA
OUT
1.0
0.8
0.6
0.4
0.2
0.0
I
= 400 mA
OUT
V
IN
= 1.5 V, V
= 3.6 V,
BIAS
C
= C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 58. Turn On Behavior with CE, 1.0 V
Version
5.4
3.6
1.8
0
Chip Enable
I
= 30 mA
OUT
2.0
1.5
1.0
0.5
0.0
I
= 1 mA
OUT
I
= 400 mA
OUT
V
IN
= 2.5 V, V
= 3.6 V,
BIAS
C
= C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
0
4
8
12 16 20 24 28 32 36 40
t (ms)
Figure 59. Turn On Behavior with CE, 1.5 V
Version
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17
NCP4671
TYPICAL CHARACTERISTICS
5.4
3.6
1.8
0
V
= C
= 1.1 V, V
= 3.6 V,
IN
BIAS
C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
Chip Enable
I
= 1 mA
OUT
0.6
0.4
0.2
0.0
I
= 30 mA
OUT
I
= 250 mA
OUT
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 60. Turn Off Behavior with CE, 0.6 V
Version
5.4
3.6
1.8
0
V
= C
= 1.1 V, V
= 3.6 V,
IN
BIAS
C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
Chip Enable
1.0
0.8
0.6
0.4
0.2
0.0
I
= 1 mA
OUT
I
= 30 mA
OUT
I
= 400 mA
OUT
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 61. Turn Off Behavior with CE, 1.0 V
Version
5.4
3.6
1.8
0
V
= C
= 2.0 V, V
= 3.6 V,
IN
BIAS
C
= 2.2 mF, C
= 1 mF
IN
OUT
BIAS
Chip Enable
I
= 1 mA
2.0
1.5
1.0
0.5
0.0
OUT
I
= 30 mA
OUT
I
= 400 mA
OUT
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
t (ms)
Figure 62. Turn Off Behavior with CE, 1.5 V
Version
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18
NCP4671
APPLICATION INFORMATION
A typical application circuit for the NCP4671 series is
and ground pin of the NCP4671. Higher values and lower
ESR of capacitor C1 improves line transient response.
shown in Figure 63. The NCP4671 has two independent
inputs, VBIAS pin is used for powering control part of the
LDO and its value is equal or higher than value of second
input pin VIN where voltage that has to be regulated is
connected.
Output Decoupling Capacitor (C3)
A 2.2 mF or larger ceramic output decoupling capacitor is
sufficient to achieve stable operation of the IC. If a tantalum
capacitor is used, and its ESR is high, loop oscillation may
result. The capacitors should be connected as close as
possible to the output and ground pins. Larger values and
lower ESR improves dynamic parameters.
NCP4671x
VIN
VIN
VOUT
VOUT
VBIAS
VBIAS
Enable Operation
C 1
C 2
1 m
C 3
The enable pin CE may be used for turning the regulator
on and off. The regulator is switched on when CE pin voltage
is above logic high level. The enable pin has an internal pull
down current source. If the enable function is not needed
connect CE pin to VBIAS.
1 m
2 m 2
GND
CE
Figure 63. Typical Application Schematic
Output Discharger
The D version includes a transistor between VOUT and
GND that is used for faster discharging of the output
capacitor. This function is activated when the IC goes into
disable mode.
Dual rail architecture is appropriate when the regulator is
connected for example behind a buck DC/DC converter.
Bias voltage can be taken from input of the buck DC/DC
converter and as input voltage is used output of the buck
DC/DC converter as it is shown in Figure 64. Condition that
bias voltage must be higher than input voltage can be in this
schematic easy fulfilled.
Thermal
As power across the IC increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and also the ambient
temperature affect the rate of temperature rise for the part.
That is to say, when the device has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
NCP4671x
VIN
VIN
VOUT
VOUT
VBIAS
DC/DC
C1
1m
C2
1m
C3
2m2
converter
GND
CE
PCB layout
Make VIN, VBIAS and GND line sufficient. If their
impedance is high, noise pickup or unstable operation may
result. Connect capacitors C1, C2 and C3 as close as possible
to the IC, and make wiring as short as possible.
Figure 64. Typical Application Schematic with DC/DC
Converter
Input Decoupling Capacitors (C1 and C2)
A 1 mF ceramic input decoupling capacitors should be
connected as close as possible to the VIN and VBIAS input
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19
NCP4671
ORDERING INFORMATION
Nominal
Output Voltage
†
Device
Marking
Enable
Package
Shipping
NCP4671DSN06T1G
0.6 V
0.9 V
1.0 V
1.2 V
1.3 V
1.5 V
0.6 V
0.9 V
1.2 V
1.3 V
1.5 V
R1A
R1D
R1E
R1F
R1G
R1J
BA
Auto−Discharge
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
NCP4671DSN09T1G
NCP4671DSN10T1G
NCP4671DSN12T1G
NCP4671DSN13T1G
NCP4671DSN15T1G
NCP4671DMX06TCG
NCP4671DMX09TCG
NCP4671DMX12TCG
NCP4671DMX13TCG
NCP4671DMX15TCG
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
Auto−Discharge
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
SOT−23−5
(Pb−Free)
3000 / Tape
& Reel
XDFN6
(Pb−Free)
5000 / Tape
& Reel
BD
XDFN6
(Pb−Free)
5000 / Tape
& Reel
BF
XDFN6
(Pb−Free)
5000 / Tape
& Reel
BG
XDFN6
(Pb−Free)
5000 / Tape
& Reel
BJ
XDFN6
(Pb−Free)
5000 / Tape
& Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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20
NCP4671
PACKAGE DIMENSIONS
SC−88A (SC−70−5/SOT−353)
CASE 419A−02
ISSUE K
A
NOTES:
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
G
2. CONTROLLING DIMENSION: INCH.
3. 419A−01 OBSOLETE. NEW STANDARD
419A−02.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
5
4
3
−B−
S
INCHES
DIM MIN MAX
MILLIMETERS
MIN
1.80
1.15
0.80
0.10
MAX
2.20
1.35
1.10
0.30
1
2
A
B
C
D
G
H
J
0.071
0.045
0.031
0.004
0.087
0.053
0.043
0.012
0.026 BSC
0.65 BSC
M
M
B
D 5 PL
0.2 (0.008)
---
0.004
0.004
0.004
0.010
0.012
---
0.10
0.10
0.10
0.25
0.30
K
N
S
N
0.008 REF
0.20 REF
0.079
0.087
2.00
2.20
J
C
K
H
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21
NCP4671
PACKAGE DIMENSIONS
XDFN6 1.2x1.2, 0.4P
CASE 711AA−01
ISSUE O
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.15 AND 0.25mm FROM TERMINAL TIPS.
4. COPLANARITY APPLIES TO ALL OF THE
TERMINALS.
A
B
D
PIN ONE
REFERENCE
E
MILLIMETERS
DIM
A
MIN
---
MAX
0.40
0.05
0.23
0.30
2X
0.05
C
A1
b
0.00
0.13
0.20
1.20 BSC
1.20 BSC
0.40 BSC
2X
0.05
C
C
D
E
e
TOP VIEW
L
0.37
0.48
A
0.05
0.05
C
C
RECOMMENDED
MOUNTING FOOTPRINT*
A1
SIDE VIEW
SEATING
PLANE
NOTE 4
C
6X
0.66
6X
0.22
PACKAGE
OUTLINE
e
1
3
1.50
C
6X
L
0.40
PITCH
DIMENSIONS: MILLIMETERS
6
4
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
6X b
M
0.05
C A B
BOTTOM VIEW
NOTE 3
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22
NCP4671
PACKAGE DIMENSIONS
SOT−23 5−LEAD
CASE 1212−01
ISSUE A
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSIONS: MILLIMETERS.
3. DATUM C IS THE SEATING PLANE.
A
A2
B
A
D
S
A1
0.05
MILLIMETERS
5
1
4
DIM MIN
MAX
1.45
0.10
1.30
0.50
0.25
3.10
3.10
1.80
E
L
A
A1
A2
b
---
0.00
1.00
0.30
0.10
2.70
2.50
1.50
2
3
E1
5X b
L1
C
c
M
S
S
A
D
0.10
C B
e
C
E
E1
e
0.95 BSC
L
0.20
0.45
---
0.75
RECOMMENDED
SOLDERING FOOTPRINT*
L1
5X
0.85
3.30
5X
0.56
0.95
PITCH
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
For additional information, please contact your local
Sales Representative
NCP4671/D
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SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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