R1152N087B-TR-FE [RICOH]
Regulator;
| 型号： | R1152N087B-TR-FE |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Regulator |
| 文件： | 总19页 (文件大小：368K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R1152N SERIES
High Input Voltage Tolerant Boost Voltage Regulator
NO.EA-108-100402
OUTLINE
The R1152N Series are CMOS-based positive voltage regulator controller ICs with high output voltage
accuracy, low supply current.
The high output current regulator can be composed with this IC, an external power transistor, and capacitors.
Each of these voltage regulator controllers consists of a voltage reference unit, an error amplifier, comparators,
resistors for output voltage setting, a peak current limit protection circuit, a short current limit circuit, and a chip
enable circuit. The output voltage of these ICs is internally fixed.
In addition to low supply current by the merit of CMOS process, the chip enable function prolongs the battery
life.
Maximum operating input voltage is up to 18V, thus these ICs are very suitable for the power supply for
hand-held equipment and other power management applications using various AC adapters.
Since the package for these ICs is SOT-23-5 package, high density mounting of the ICs on boards is possible.
FEATURES
• Supply Current..........................................Typ.10μA
• Standby Mode...........................................Typ.0.1μA
• Dropout Voltage ....................................... Typ.0.1V(IOUT=300mA,VOUT=5.0V,Depends on External Transistor)
• Output Voltage Accuracy.......................... ±2.0%
• Output Voltage ......................................... Internally fixed output voltage : 2.5V to 12.0V (0.1V steps)
Externally adjustable output voltage : the reference voltage is 2.5V
(with external divider resistors can be set more than12.1V)
(For other voltages, please refer to MARK INFORMATIONS.)
• Operating Input Voltage ........................... Max.18V
• Package ................................................... SOT-23-5
• Built-in Chip Enable Circuit (“H” active)
• Built-in Current Limit Circuit
• Built-in Output Short Current Limit Circuit
APPLICATIONS
• Power source for home appliances such as refrigerators, rice cookers, etc.
• Power source for car audio equipment, car navigation system, and ETC system.
• Power source for notebook PCs, digital TVs, cordless phones, and LAN system.
• Power source for copiers, printers, facsimiles, and scanners.
1
R1152N
BLOCK DIAGRAMS
3
4
5
VIN
EXT
＋
－
V
OUT
Vref
Current Limit
CE
1
2
GND
SELECTION GUIDE
The output voltage for the ICs can be selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
SOT-23-5
3,000 pcs
Yes
Yes
R1152NxxxB∗-TR-FE
xxx : The output voltage can be designated in the range from 2.5V(025) to 12.0V(120) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
2
R1152N
PIN CONFIGURATION
• SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTIONS
Pin No
Symbol
Pin Description
1
2
3
4
5
CE
Chip Enable Pin
Ground Pin
Input pin
GND
VIN
VDD
External Transistor Drive Pin
Voltage Regulator Output Pin
VOUT
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
VIN
Input Voltage
20
26
SURGE Input Voltage*2
V
VSURGE
VCE
V
V
V
−0.3 to VIN+0.3 ≤ 20
−0.3 to VIN+0.3 ≤ 20
−0.3 to VIN+0.3 ≤ 20
25
Input Voltage (CE Pin)
VOUT
VEXT
IEXT
Output Voltage (VOUT Pin)
Output Voltage (EXT Pin)
EXT Output Current
Power Dissipation (SOT-23-5*1)
Operating Temperature Range
Storage Temperature Range
mA
mW
°C
PD
420
Topt
Tstg
−40 to +105
−55 to +125
°C
*1) For Power Dissipation, please refer to PACKAGE INFORMATION.
*2) duration=200ms
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
3
R1152N
ELECTRICAL CHARACTERISTICS
• R1152NxxxB
Topt=25°C
Symbol
Item
Conditions
Min.
×0.980
1
Typ.
Max.
Unit
VIN=Set VOUT+1V
IOUT=100mA
VOUT
Output Voltage
V
A
×1.020
Refer to the specification Table
IOUT
Output Current
Note1
VIN=Set VOUT+1V
Load Regulation
ΔVOUT/ΔIOUT
Refer to the specification table by
output voltage
1mA
IOUT
100mA
=
VDIF
ISS
Dropout Voltage
IOUT=300mA
Supply Current
10
24
1.0
0.1
VIN=Set VOUT+1V, IOUT=0mA
VIN=18V,CE=0V
μA
μA
μA
Istandby
IEXTleak
Supply Current (Standby)
EXT Leakage Current
0.1
Set VOUT+0.5V VIN 18.0V
IOUT=100mA
=
Line Regulation
Input Voltage
Current Limit
0.01
0.10
18
%/V
V
ΔVOUT/ΔVIN
VIN
ISC
Refer to the specification Table
Base Current IB of PNP Tr.
10
25
mA
Base Current IB of PNP Tr.
VOUT=0V
Ilim
Short Current Limit
600
μA
ppm
/°C
ΔVOUT/
ΔTopt
Output Voltage
Temperature Coefficient
IOUT=100mA
−40°C Topt 105°C
±50
VCEH
CE Input Voltage "H"
CE Input Voltage "L"
2.0
0
VIN
μA
VCEL
0.3
V
Note1: This item depends on the capability of external PNP transistor.
Use low saturation type transistor with hFE value range of 100 to 300.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
4
R1152N
• Load Regulation Table (Topt=25°C)
Load Regulation (mV)
Output Voltage
VOUT (V)
Typ.
Max.
2.5 ≤ VOUT ≤ 5.0
5.1 ≤ VOUT ≤ 12.0
4
4
10
18
• Dropout Voltage Table (Topt=25°C)
Dropout Voltage (mV)
Output Voltage
VOUT (V)
Typ.
150
100
Max.
2.5 ≤ VOUT ≤ 4.9
5.0 ≤ VOUT ≤ 12.0
290
180
∗This specification depends on an external transistor. ("2SB1642" is the reference item.)
• Output Current Limit Condition Table (Topt=25°C)
Output Voltage
Condition
VOUT (V)
2.5V ≤ VOUT ≤ 3.9
4.0 ≤ VOUT ≤ 12.0
VIN=CE=EXT=5.0V
VIN=CE=EXT=VOUT+1.0V
• Output Current Condition Table (Topt=25°C)
Output Voltage
VOUT (V)
Condition
2.5V ≤ VOUT ≤ 3.9
4.0 ≤ VOUT ≤ 12.0
VIN=CE=5.0V
VIN=CE=VOUT+1.0V
5
R1152N
OPERATION
In these ICs, fluctuation of Output Voltage, VOUT is detected by the feed-back registers, and the result is
compared with a reference voltage with the error amplifier and control the base current of an external PNP
transistor so that a constant voltage is output. The base current is monitored with the base current limit circuit.
If the base current may be too large, the protection circuit works.
TECHNICAL NOTES
When using these ICs, consider the following points:
Make VDD and GND lines sufficient. When their impedance is high, noise pickup or unstable operation may
result.
When you choose an external transistor, select with considering output current, input voltage, and power
dissipation. Generally, low VCE (SAT) and hFE range from 100 to 300 are the appropriate characteristics.
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, be sure to use a 10μF or more output capacitor, as close as possible to the ICs.
If you choose an electrolytic capacitor, ESR shift by temperature should be small. If you choose a ceramic
capacitor, add an appropriate series resister.
If the set output voltage is less than 4.0V, and IOUT>1A must be obtained, at least VIN≧5.0V is the appropriate
condition. (Supposed as hFE=100)
Voltage level for CE should not be floating, or middle range voltage. If the CE voltage is not appropriate, output
voltage may be unstable or conduction current may flow.
All external components should be located as close as possible to the IC, and wiring should be as short as
possible.
If hFE value of the PNP transistor is too high, output voltage may rise at low load current (less than 1mA).
6
R1152N
TEST CIRCUITS
I
SS
V
IN
VIN
PNP Tr
OUT
EXT
EXT
CE
CE
V
OUT
VOUT
V
IN
C
IN
VIN
GND
GND
C
OUT
V
OUT
CIN=0.1μF, COUT=10μF
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
TYPICAL APPLICATIONS
IN
IN
V
IN
VIN
PNP Tr
OUT
PNP Tr
OUT
EXT
EXT
CE
CE
C
IN
CIN
V
OUT
VOUT
GND
GND
C
OUT
COUT
CIN=0.1μF, COUT=10μF
CIN=0.1μF, COUT=10μF
Fixed Type Output
Adjustable Output
7
R1152N
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (Topt=25°C)
a. External Tr.: 2SB1642
R1152N025B
3.0
R1152N033B
4.0
3.0
2.0
1.0
0.0
2.5
V
IN=5.0V
VIN=5.0V
2.0
1.5
1.0
0.5
0.0
V
IN=3.5V
VIN=4.3V
V
IN=3.0V
V
IN=3.8V
0
500
1000
1500
2000
0
500
1000
1500
2000
Output Current IOUT(mA)
Output Current IOUT(mA)
R1152N050B
R1152N120B
6.0
5.0
4.0
3.0
2.0
1.0
0.0
14.0
12.0
10.0
8.0
V
IN=12.5V
V
IN=6.0V
V
IN=13.0V
IN=14.0V
V
IN=5.5V
6.0
V
V
IN=7.0V
4.0
2.0
0.0
0
500
1000
1500
2000
0
500
1000
1500
2000
Output Current IOUT(mA)
Output Current IOUT(mA)
b. External Tr.:2SA1645
R1152N025B
R1152N033B
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0
3.0
2.0
1.0
0.0
V
IN=5.0V
VIN=5.0V
V
IN=3.5V
V
IN=3.0V
V
IN=4.3V
V
IN=3.8V
0
1000 2000 3000 4000 5000
Output Current IOUT(mA)
0
1000 2000 3000 4000 5000
Output Current IOUT(mA)
8
R1152N
R1152N050B
6.0
5.0
4.0
3.0
2.0
1.0
0.0
V
IN=6.0V
V
IN=5.5V
VIN=7.0V
0
1000 2000 3000 4000 5000 6000
Output Current IOUT(mA)
c. Output Voltage vs. Base Current (Topt=25°C)
R1152N025B
R1152N033B
VIN=5.0V
VIN=5.0V
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0
3.0
2.0
1.0
0.0
0
5
10
15
20
25
30
0
10
20
30
Base Current IEXT(mA)
Base Current IEXT(mA)
R1152N050B
R1152N012B
VIN=6.0V
VIN=13.0V
6.0
5.0
4.0
3.0
2.0
1.0
0.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Base Current IEXT(mA)
Base Current IEXT(mA)
9
R1152N
2) Output Voltage vs. Input Voltage (Topt=25°C)
External Transistor: 2SB1642
R1152N025B
R1152N033B
2.7
3.6
3.3
3.0
2.7
2.4
2.1
2.5
2.3
I
I
I
I
OUT=1A
I
OUT=1A
OUT=500mA
OUT=100mA
OUT=0mA
I
I
I
OUT=500mA
OUT=100mA
OUT=0mA
2.1
1.9
1.7
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Input Voltage VIN(V)
Input Voltage VIN(V)
R1152N050B
5.2
5.0
4.8
4.6
4.4
4.2
I
I
I
I
OUT=1A
OUT=500mA
OUT=100mA
OUT=0mA
4
5
6
7
8
Input Voltage VIN(V)
3) Output Voltage vs. Temperature
R1152N025B
R1152N033B
I
OUT=100mA
IOUT=100mA
VIN=4.3V
VIN=3.5V
2.550
2.525
2.500
2.475
2.450
3.366
3.333
3.300
3.267
3.234
-40 -15
10
35
60
85
110
-40 -15
10
35
60
85
110
Temperature Topt (°C)
Temperature Topt (°C)
10
R1152N
R1152N050B
R1152N120B
I
OUT=100mA
I
OUT=100mA
IN=13.0V
VIN=6.0V
V
5.100
5.050
5.000
4.950
4.900
12.240
12.120
12.000
11.880
11.760
-40 -15
10
35
60
85
110
-40 -15
10
35
60
85
110
Temperature Topt (°C)
Temperature Topt (°C)
4) Supply Current vs. Input Voltage (Topt=25°C)
R1152N033B
R1152N050B
20
20
15
10
5
15
10
5
0
0
0
4
8
12
16
20
24
0
4
8
12
16
20
24
Input Voltage VIN(V)
Input Voltage VIN(V)
R1152N120B
20
15
10
5
0
0
4
8
12
16
20
24
Input Voltage VIN(V)
11
R1152N
5) Supply Current vs. Temperature
R1152N025B
R1152N033B
VIN=VOUT=3.5V
VIN=VOUT=4.3V
20
15
10
5
20
15
10
5
0
0
-40 -15
10
35
60
85
110
-40 -15
10
35
60
85
110
Temperature Topt (°C)
Temperature Topt (°C)
R1152N050B
R1152N120B
VIN=VOUT=13.0V
VIN=VOUT=6.0V
20
15
10
5
20
15
10
5
0
0
-40 -15
10
35
60
85
110
-40 -15
10
35
60
85
110
Temperature Topt (°C)
Temperature Topt (°C)
6) Ripple Rejection vs. Ripple Frequency (Topt=25°C)
R1152N025B
R1152N033B
VIN=3.5V+0.5Vp-p
VIN=4.3V+0.5Vp-p
I
OUT=100mA,COUT=10μF
I
OUT=100mA,COUT=10μF
100
80
60
40
20
0
100
80
60
40
20
0
2SA1645
2SA1645
2SB1642
2SB1642
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency f(kHz)
Frequency f(kHz)
12
R1152N
R1152N050B
R1152N120B
VIN=6.0V+0.5Vp-p
VIN=13.0V+0.5Vp-p
I
OUT=100mA,COUT=10μF
I
OUT=100mA,COUT=10μF
100
80
60
40
20
0
100
80
60
40
20
0
2SA1645
2SA1645
2SB1642
0.1
2SB1642
0.01
0.1
1
10
100
0.01
1
10
100
Frequency f(kHz)
Frequency f(kHz)
7) Input Transient Response (Topt=25°C)
a. External Tr.: 2SB1642
R1152N025B
R1152N033B
I
OUT=100mA
OUT=10μF
I
OUT=100mA
OUT=10μF
V
V
2.9
2.8
2.7
2.6
2.5
2.4
2.3
5.5
4.5
3.5
2.5
1.5
0.5
-0.5
3.7
6.3
5.3
4.3
3.3
2.3
1.3
0.3
3.6
3.5
3.4
3.3
3.2
3.1
Input Voltage
Input Voltage
Output Voltage
Output Voltage
0
50
100 150 200 250 300
0
50
100 150 200 250 300
Time (μs)
Time (μs)
R1152N050B
R1152N120B
I
OUT=100mA
OUT=10μF
I
OUT=100mA
V
V
OUT=10μF
5.4
5.3
5.2
5.1
5.0
4.9
4.8
8.0
7.0
6.0
5.0
4.0
3.0
2.0
12.4
12.3
12.2
12.1
12.0
11.9
11.8
15.0
14.0
13.0
12.0
11.0
10.0
9.0
Input Voltage
Input Voltage
Output Voltage
Output Voltage
0
50
100 150 200 250 300
0
50
100 150 200 250 300
Time (μs)
Time (μs)
13
R1152N
b. External Tr.: 2SA1645
R1152N025B
R1152N033B
IOUT=100mA
IOUT=100mA
V
OUT=10μF
V
OUT=10μF
2.9
2.8
2.7
2.6
2.5
2.4
2.3
5.5
4.5
3.5
2.5
1.5
0.5
-0.5
3.7
3.6
3.5
3.4
3.3
3.2
3.1
6.3
5.3
4.3
3.3
2.3
1.3
0.3
Input Voltage
Input Voltage
Output Voltage
Output Voltage
0
50
100 150 200 250 300
0
50
100 150 200 250 300
Time (μs)
Time (μs)
R1152N050B
R1152N120B
IOUT=100mA
IOUT=100mA
V
OUT=10μF
V
OUT=10μF
5.4
5.3
5.2
5.1
5.0
4.9
4.8
8.0
7.0
6.0
5.0
4.0
3.0
2.0
12.4
12.3
12.2
12.1
12.0
11.9
11.8
15.0
14.0
13.0
12.0
11.0
10.0
9.0
Input Voltage
Input Voltage
Output Voltage
Output Voltage
0
50
100 150 200 250 300
0
50
100 150 200 250 300
Time (μs)
Time (μs)
8) Load Transient Response (Topt=25°C)
a: External Tr.: 2SB1642
R1152N025B
R1152N033B
C
IN=0.1μF
C
IN=0.1μF
C
OUT=10μF
COUT=10μF
2.75
2.70
2.65
2.60
2.55
2.50
2.45
2.40
120
100
80
60
40
20
0
3.55
3.50
3.45
3.40
3.35
3.30
3.25
3.20
120
100
80
60
40
20
0
Output Current
Output Current
Output Voltage
Output Voltage
0
200
400
600
800
1000
0
200
400
600
800
1000
Time (μs)
Time (μs)
14
R1152N
R1152N050B
R1152N120B
C
IN=0.1μF
C
IN=0.1μF
C
OUT=10μF
COUT=10μF
5.25
5.20
5.15
5.10
5.05
5.00
4.95
4.90
120
100
80
60
40
20
0
12.25
12.20
12.15
12.10
12.05
12.00
11.95
11.90
120
100
80
60
40
20
0
Output Current
Output Current
Output Voltage
Output Voltage
0
200
400
600
800
1000
0
200
400
600
800
1000
Time (μs)
Time (μs)
b. External Tr.: 2SA1645
R1152N025B
R1152N033B
C
IN=0.1μF
C
IN=0.1μF
C
OUT=10μF
COUT=10μF
2.75
2.70
2.65
2.60
2.55
2.50
2.45
2.40
120
100
80
60
40
20
0
3.55
3.50
3.45
3.40
3.35
3.30
3.25
3.20
120
100
80
60
40
20
0
Output Current
Output Current
Output Voltage
Output Voltage
0
200
400
600
800
1000
0
200
400
600
800
1000
Time (μs)
Time (μs)
R1152N050B
R1152N120B
C
IN=0.1μF
C
IN=0.1μF
C
OUT=10μF
COUT=10μF
5.25
5.20
5.15
5.10
5.05
5.00
4.95
4.90
120
100
80
60
40
20
0
12.25
12.20
12.15
12.10
12.05
12.00
11.95
11.90
120
100
80
60
40
20
0
Output Current
Output Current
Output Voltage
Output Voltage
0
200
400
600
800
1000
0
200
400
600
800
1000
Time (μs)
Time (μs)
15
R1152N
APPENDIX
• Technical Notes on Output Voltage Setting
EXT
PNP Tr
OUT
I
IC
V
OUT
I
I
2
3
R
R
2
3
V
OUT2
R
IC
GND
2.5V
The output voltage of regulator with R1152N025x may be adjustable for any output voltage between its 2.5V
reference and VDD setting level. An external pair of resistors is required, as shown above figure.
The complete equation for the output voltage is described step by step as follows;
I2=IIC+I3.......................................................................................................................................(1)
I3=2.5/R3 ...................................................................................................................................(2)
Thus,
I2= IIC+2.5/R3 ..............................................................................................................................(3)
Therefore,
VOUT=2.5+R2×I2.........................................................................................................................(4)
Put Equation (3) into Equation (4), then
VOUT=2.5+R2×(IIC+2.5/R3)
=2.5×(1+R2/R3)+R2×IIC .....................................................................................................(5)
In 2nd term, or R2×IIC will produce an error in VOUT.
In Equation(5),
IIC=2.5/RIC ..................................................................................................................................(6)
R2×IIC=R2×2.5/RIC
=2.5×R2/RIC.................................................................................................................. (7)
For better accuracy, choosing R2 (<<RIC) reduces this error.
∗RIC is approximately 1.1MΩ.
16
R1152N
• Adjustable Resister vs. Output Voltage (Topt=25°C)
R1125N025B
R1125N025B
R3=10kΩ
Topt=25°C
R3=100kΩ
Topt=25°C
30
30
24
18
12
6
24
18
12
6
0
0
0
20
40
60
80
100
0
200
400
600
800
1000
Resistance R2(kΩ)
Resistance R2(kΩ)
For Stable Operation
Phase Compensation
In these ICs, phase compensation is externally made for securing stable operation even if the load current is
varied. For this purpose, be sure to use a capacitor for the output pin with good frequency characteristics and
ESR (Equivalent Series Resistance) of which is in the range described as follows:
IN
V
IN
PNP Tr
EXT
CE
OUT
C
IN
V
OUT
Ceramic
Capacitor
C
OUT
GND
Ceramic
Capacitor
Spectrum
Analyze
0.1μF
S.A
10μF
I
OUT
ESR
Measuring Circuit for white noise; R1152NxxxB
The relations between IOUT (Output Current) and ESR of Output Capacitor are shown below. The conditions
when the white noise level is under 40μV (Avg.) are marked as the hatched area in the graph.
<Measurement conditions>
(1)VIN=VOUT+1V
(2)Frequency band: 10Hz to 1MHz
(3)Temperature: 25°C
(4)COUT: Ceramic 10μF; ESR=0.075Ω(10kHz)
17
R1152N
a) Tr.: 2SB1642
R1152N025B
R1152N120Bx
1000
100
10
1000
100
10
1
1
0.1
0.1
0.01
0.01
0
200
400
600
800
1000
0
200
400
600
800
1000
Output Current IOUT(mA)
Output Current IOUT(mA)
b) Tr.: 2SA1645
R1152N025B
R1152N120B
1000
100
10
1000
100
10
1
1
0.1
0.1
0.01
0.01
0
200
400
600
800
1000
0
200
400
600
800
1000
Output Current IOUT(mA)
Output Current IOUT(mA)
18
1.The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
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RICOH COMPANY., LTD. Electronic Devices Company
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■
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