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R1151N3.4A-TR [ETC]

Analog IC ; 模拟IC\n
R1151N3.4A-TR
型号： R1151N3.4A-TR
厂家： ETC    ETC
描述：

Analog IC
模拟IC\n

模拟IC
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'2002.1.25  
Boost type Voltage Regulator with Reset  
R1151N SERIES  
■ OUTLINE  
The R1151N Series are CMOS-based boost type voltage regulator ICs with high output voltage accuracy, low supply current,  
and high ripple rejection. Each of these voltage regulator controllers consists of a voltage reference unit, an error amplifier,  
comparators, resistors for output and reset voltage setting, a current limit protection circuit, and a chip enable circuit.  
In addition to low consumption current by CMOS process, the chip enable function prolongs the battery life. Dynamic  
response and ripple rejection of the R1151N Series are excellent, further these are low noise type, plus maximum operating  
input voltage tolerance is up to 18.5V, thus these ICs are very suitable for the power supply for hand-held equipment and other  
power management applications using AC adapter input voltage.  
The output voltage of these ICs is internally fixed with high accuracy. Since the package for these ICs are SOT-23-6 (Mini-  
mold) package, high density mounting of the ICs on boards is possible.  
■ FEATURES  
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Ultra-Low Supply Current......................................... TYP. 70µA (IOUT=0mA)  
Standby Mode ........................................................... TYP. 0.1µA  
Low Dropout Voltage ................................................ TYP. 0.1V(IOUT=100mA *Depends on External Transistor)  
High Ripple Rejection............................................... TYP. 60dB(f=1kHz)  
Low Temperature-Drift Coefficient of Output Voltage TYP. ±100ppm/°C  
High Output Voltage Accuracy.................................. ±2.0%  
Excellent Dynamic Response  
Small Package ..........................................................SOT-23-5(Mini-mold)  
Output Voltage...........................................................Stepwise setting with a step of 0.1V in the range of 2.5V to 9.0V  
Built-in chip enable circuit ( 2 types; A: active low , B: active high)  
Output Capacitor .......................................................Tantalum type recommendation (or Ceramic + Series Resistor)  
Built-in output voltage detector.................................with delay (C version)  
Detector Threshold Tolerance ................................... ±2.5%  
Detector Threshold Voltage ...................................... Stepwise setting with a step of 0.1V in the range of 1.7V to 8.0V  
Operating Input Voltage ............................................Max. 18.5V  
■ APPLICATIONS  
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Power source for handheld equipment such as cameras and videos.  
Power source for home appliances.  
Power source for battery-powered equipment.  
Rev. 1.11  
- 1 -  
■ BLOCK DIAGRAMS  
R1151NXXXB  
EXT  
CE  
4
1
VDD  
6
3
VOUT  
-
+
+
-
VDET  
2
Vref  
Vref  
GND  
Current Limit  
5
R1151NXXXC  
EXT  
CD  
4
1
VDD  
6
3
VOUT  
-
+
+
-
VDET  
2
Vref  
Vref  
GND  
Current Limit  
5
Rev. 1.11  
- 2 -  
■ SELECTION GUIDE  
The output voltage, mask option code, and the taping type for the ICs can be selected at the user's request. The selection can be  
made with designating the part number as shown below;  
R1151NXXXX-XX  
←Part Number  
↑
↑
↑
a
b
c
Code  
Contents  
a
Code Number for Voltage Setting  
Setting mask option :  
A: with CE (active at “L” type)  
B: with CE (active at “H” type)  
b
c
C: with the pin for external capacitor to set the output delay of voltage detector  
Designation of Taping Type :  
Ex. TR (Refer to Taping Specifications.)  
■ PIN CONFIGURATION  
SOT-23-6  
6
5
4
VDD  
GND  
CE/CD  
(MARK SIDE)  
VDET  
EXT  
VOUT  
1
2
3
■ PIN DESCRIPTIONS  
Pin No.  
Symbol  
Description  
1
EXT  
External Transistor Drive Pin  
Voltage Detector Output Pin  
Voltage Regulator Output pin  
Chip Enable Pin(A/B version)  
2
3
4
4
5
6
VDET  
VOUT  
or CE  
CE  
CD  
Pin for External capacitor to set Output Delay of Voltage Detector(C version)  
GND  
VDD  
Ground Pin  
Input Pin  
Rev. 1.11  
- 3 -  
■ ABSOLUTE MAXIMUM RATINGS  
Item  
Symbol  
VIN  
Rating  
20  
Unit  
V
Input Voltage  
Input Voltage(  
/CE/CD Pin)  
VCE/CD  
VOUT  
VEXT  
VDET  
IEXT  
PD  
-0.3 ~ VIN+0.3  
-0.3 ~ VIN+0.3  
-0.3 ~ VIN+0.3  
-0.3 ~ VIN+0.3  
30  
V
CE  
Output Voltage(VOUT Pin)  
Output Voltage(EXT Pin)  
Output Voltage(VDET Pin)  
EXT Output Current  
V
V
V
mA  
mW  
°C  
°C  
Power Dissipation  
150  
Operating Temperature Range  
Storage Temperature Range  
Topt  
Tstg  
-40 ~ 85  
-55 ~ 125  
■ ELECTRICAL CHARACTERISTICS  
■
R1151NXXXA/B  
Symbol  
Topt=25°C  
Item  
Conditions  
MIN.  
TYP.  
1Note  
MAX.  
VOUT  
Unit  
VIN = Set VOUT+1V  
VOUT  
VOUT  
IOUT  
Output Voltage  
Output Current  
V
A
IOUT = 50mA  
×0.98  
×1.02  
VIN - VOUT = 1.0V  
VIN = Set VOUT+1V  
1mA ≤ IOUT ≤ 100mA  
IOUT = 100mA  
∆VOUT/∆IOUT Load Regulation  
Refer to the Load Regulation Table  
VDIF  
ISS  
Istandby  
IEXTleak  
Dropout Voltage  
0.1Note  
70  
15  
0.2  
100  
V
Supply Current  
VIN = Set VOUT+1V, IOUT = 0mA  
VIN = 18.5V  
µA  
µA  
µA  
Supply Current (Standby)  
EXT Leakage Current  
0.5  
Set VOUT+0.5V ≤ VIN ≤ 18.5V  
IOUT = 50mA  
f = 1kHz, Ripple 0.5Vp-p  
VIN = Set VOUT+1V  
∆VOUT/∆VIN  
Line Regulation  
0
8
0.02  
60  
0.10  
%/V  
RR  
VIN  
Ripple Rejection  
dB  
Input Voltage  
18.5  
27  
V
ppm  
/°C  
Output Voltage  
IOUT = 10mA  
∆VOUT/∆T  
±100  
Temperature Coefficient  
-40°C ≤ Topt ≤ 85°C  
Base Current IB of PNP Tr.  
VIN - VOUT = 1.0V  
Base Current IB of PNP Tr.  
VOUT = 0V  
Ilim  
IRPT  
RUD  
Current Limit  
mA  
mA  
MΩ  
Short Current Limit  
0.7  
2
Pull-up/down  
CE  
/CE  
Resistance  
Input Voltage “H”  
CE  
CE  
VCEH  
VCEL  
1.5  
0
-VDET  
×0.975  
-VDET  
×0.03  
VIN  
V
V
/CE  
/CE  
Input Voltage “L”  
0.25  
-VDET  
×1.025  
-VDET  
×0.07  
-VDET  
VHYS  
V
V
Detector Threshold  
Detector Threshold  
Hysteresis Range  
-VDET  
×0.05  
IOUT2  
∆VDET/∆T  
tPLH  
VDD = 1.5V, VDS = 0.5V  
2.0  
5.0  
10.0  
mA  
ppm  
/°C  
Output Current 2  
Detector Threshold  
Temperature Coefficient  
Output Delay Time  
-40°C ≤ Topt ≤ 85°C  
±100  
0.1  
1.1  
ms  
Minimum Operating  
Voltage  
VDDL  
0.9  
V
Note: This item depends on the capability of external PNP transistor. Use low saturation type transistor with hFE value range of  
100 to 300.  
Rev. 1.11  
- 4 -  
■
R1151NXXXC  
Symbol  
Topt=25°C  
Item  
Conditions  
VIN = Set VOUT+1V  
IOUT = 50mA  
MIN.  
VOUT  
×0.98  
TYP.  
MAX.  
VOUT  
×1.02  
Unit  
VOUT  
IOUT  
Output Voltage  
Output Current  
Load Regulation  
V
A
VIN - VOUT = 1.0V  
1*Note1  
VIN = Set VOUT+1V  
1mA ≤ IOUT ≤ 100mA  
IOUT = 100mA  
Refer to the Load Regulation Table  
∆VOUT/∆IOUT  
VDIF  
ISS  
Dropout Voltage  
Supply Current  
0.1*Note1  
70  
V
VIN = Set VOUT+1V, IOUT = 0mA  
100  
0.5  
µA  
µA  
IEXTleak  
EXT Leakage Current  
Set VOUT+0.5V ≤ VIN ≤ 18.5V  
IOUT = 50mA  
f = 1kHz, Ripple 0.5Vp-p  
VIN = Set VOUT+1V  
Line Regulation  
0.00  
0.02  
60  
0.10  
18.5  
27  
%/V  
∆VOUT/∆VIN  
RR  
VIN  
Ripple Rejection  
dB  
Input Voltage  
Output Voltage  
Temperature Coefficient  
V
ppm  
/°C  
IOUT = 10mA  
±100  
0.7  
∆VOUT/∆T  
-40°C ≤ Top t ≤ 85°C  
Base Current IB of PNP Tr.  
VIN - VOUT = 1.0V  
Base Current IB of PNP Tr.  
VOUT = 0V  
Ilim  
Current Limit  
8
mA  
IRPT  
-VDET  
VHYS  
Short Current Limit  
Detector Threshold  
mA  
V
-VDET  
×0.975  
-VDET  
×0.03  
-VDET  
×1.025  
-VDET  
×0.07  
Detector Threshold  
Hysteresis Range  
-VDET  
×0.05  
V
IOUT2  
∆VDET/∆T  
tPLH  
VDD = 1.5V, VDS = 0.5V  
-40°C ≤ Topt ≤ 85°C  
CD=220pF*Note2  
2.0  
5.0  
±100  
1.6  
10.0  
mA  
ppm  
/°C  
Output Current 2  
Detector Threshold  
Temperature Coefficient  
Output Delay Time  
0.9  
2.7  
1.1  
ms  
Minimum Operating  
Voltage  
VDDL  
0.9  
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.  
Note2: VDET pin is pulled-up to VDD via 470kΩ resistance. The time is between the rising edge of VOUT level from 0.9V to  
(+VDET)+2.0V and the reaching point to ((+VDET)+2.0V)/2 of the VDET output voltage.  
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Load Regulation Table  
OUT  
OUT (mV)  
Load Regulation ∆V /∆I  
TYP.  
20  
30  
40  
Output Voltage VOUT(V)  
MAX.  
60  
90  
130  
160  
2.5 to 3.3  
3.4 to 5.0  
5.1 to 7.0  
7.1 to 9.0  
50  
■ 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, further, output voltage is monitored with the built-in voltage detector. If the set detector threshold voltage is  
detected, reset signal will be output.  
Rev. 1.11  
- 5 -  
■ TECHNICAL NOTES  
When using these ICs, consider the following points:  
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 as much as 10µF capacitor as CL with good frequency characteristics and ESR (Equivalent Series Resistance).  
The best suitable equivalent series resistor value (ESR) is approximately 1Ω.  
If the ESR of the output capacitor is too large, output may be unstable, therefore fully evaluation is necessary.  
Make VDD and GND line sufficient. When their impedance of these is high, noise pickup or unstable operation may be the  
result. Connect a capacitor with a capacitance value of as much as 10µF between VDD and GND as close as possible to these  
pins.  
Set external components, especially output capacitor, as close as possible to the ICs.  
Refer to the next equation to calculate the output delay time of C version and decide the capacitance value for the delay time.  
tPLH =2.31×C/(300×10-9 )  
C: Capacitance value (F)  
Recommended pull-up resistance (R1) value is 470kΩ. If the value is too small, released voltage may be shift, therefore, use  
10kΩ or more value resistor.  
■ TEST CIRCUITS  
PNP  
PNP  
1
1
IOUT  
IOUT  
VIN  
VIN  
3
3
6
2
6
2
R1151NxxC  
R1151NxxC  
R1  
VDET  
4
4
5
5
C1  
C2  
C1  
C2  
Fig.1 Standard test Circuit  
R1=470kΩ C1=220pF, C2=10µF  
Fig.2 Supply Current Test Circuit  
C1=220pF, C2=10µF  
PNP  
1
PNP  
1
IOUT  
IOUT  
VIN  
VIN  
3
3
6
2
6
2
R1151NxxC  
R1151NxxC  
P.G.  
4
P.G.  
4
5
5
C1  
C2  
C1  
C2  
Fig.3 Ripple Rejection, Line Transient Response Test  
Fig.4 Load Transient Response Test Circuit  
Circuit C1=220pF, C2=10µF  
C1=220pF, C2=10µF  
Rev. 1.11  
- 6 -  
■ TYPICAL APPLICATION  
OUT  
PNP Tr  
IN  
+
+
CI  
CL  
VOUT  
EXT  
VDD  
CD  
R1151NxxxC  
GND  
R1  
+
CD  
RESET  
VDET  
(External Components)  
C1 10µF R1=470kΩ PNP Tr.: 2SA1441, 2SB940, 2SB703  
CL 10µF  
■ TYPICAL CHARACTERISTICS  
1) Output Voltage vs. Output Current (Topt=25°C)  
a. External Tr.: 2SA1441  
R1151N (VR=9.0V)  
10.00  
R1151N (VR=5.0V)  
6.00  
5.50  
5.00  
4.50  
4.00  
3.50  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
9.00  
8.00  
VIN=10V  
7.00  
VIN=11V  
IN  
V =7V  
6.00  
IN  
V =6V  
VIN=9.5V  
IN  
V =5.5V  
5.00  
IN  
V =9.3V  
IN  
V =5.3V  
4.00  
3.00  
2.00  
1.00  
0.00  
0
500 1000 1500 2000 2500 3000 3500 4000  
Output Current IOUT(mA)  
0
500 1000 1500 2000 2500 3000 3500 4000  
OUT  
Output Current I  
(mA)  
Rev. 1.11  
- 7 -  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
3.50  
3.25  
3.00  
2.75  
2.50  
2.25  
2.00  
1.75  
1.50  
1.25  
1.00  
0.75  
0.50  
0.25  
0.00  
VIN=5.3V  
VIN=4.3V  
VIN=3.8V  
VDD=4.5V  
VDD=3.5V  
VDD=3.0V  
VIN=3.6V  
VDD=2.8V  
0
500 1000 1500 2000 2500 3000 3500 4000  
Output Current IOUT(mA)  
0
500 1000 1500 2000 2500 3000 3500 4000  
Output Current IOUT(mA）  
b. External Tr.:2SB940  
R1151N (VR=9.0V)  
R1151N (VR=5.0V)  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
10.00  
9.00  
8.00  
7.00  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
VDD=11.0V  
VDD=10.0V  
VDD=9.5V  
VDD=7.0V  
VDD=6.0V  
V
DD  
=5.3V  
VDD=9.3V  
VDD=5.5V  
0
100 200 300 400 500 600 700 800 900 100 110  
0
100 200 300 400 500 600 700 800 900 100 110  
0
0
Output Current IOUT(mA)  
0
0
Output Current IOUT(mA)  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
4.00  
3.50  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
VDD=5.3V  
VDD=4.5V  
VDD=4.3V  
VDD=3.5V  
VDD=3.8V  
VDD=3.0V  
VDD=2.8V  
VDD=3.6V  
0
100 200 300 400 500 600 700 800 900 100 110  
0
100 200 300 400 500 600 700 800 900 100 110  
0
0
0
0
Output Current IOUT(mA)  
Output Current IOUT(mA)  
Rev. 1.11  
- 8 -  
c. External Tr.:2SB703  
R1151N (VR=9.0V)  
R1151N (VR=5.0V)  
VIN=7.0V  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
10.00  
9.00  
8.00  
7.00  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
VIN=11.0V  
VIN=6.0V  
VIN=5.5V  
VIN=5.3V  
VIN=10.0V  
VIN=9.5V  
VIN=9.3V  
0
100 200 300 400 500 600 700 800 900 100 110  
0
100 200 300 400 500 600 700 800 900 100 110  
0
0
0
0
Output Current IOUT(mA)  
Output Current IOUT(mA)  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
3.50  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
V
IN=5.3V  
VIN=4.3V  
VIN=3.8V  
VIN=4.5V  
VIN=3.5V  
VIN=3.0V  
VIN=3.6V  
VIN=2.8V  
0
100 200 300 400 500 600 700 800 900 100 110  
0
100 200 300 400 500 600 700 800 900 100 110  
0
0
Output Current IOUT(mA)  
Output Current IOUT(mA)  
0
0
d. Output Voltage vs. Base Current (Topt=25°C)  
VR=9.0V  
VR=5.0V  
10.00  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
9.00  
8.00  
7.00  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
0
2
4
6
8
10  
12  
14  
16  
18  
0
2
4
6
8
10  
12  
14  
16  
18  
Base Current IEXT(mA)  
Base Current IEXT(mA)  
Rev. 1.11  
- 9 -  
VR=2.5v  
VR=3.3v  
3.00  
2.75  
2.50  
2.25  
2.00  
1.75  
1.50  
1.25  
1.00  
0.75  
0.50  
0.25  
0.00  
4.00  
3.50  
3.00  
2.50  
2.00  
1.50  
1.00  
0.50  
0.00  
0
2
4
6
8
10  
12  
14  
16  
18  
0
2
4
6
8
10  
12  
14  
16  
Base Current IEXT(mA)  
Base Current IEXT(mA)  
2) Output Voltage vs. Input Voltage (Topt=25°C)  
External Transistor: 2SA1441  
R1151N (VR=5.0V)  
6.00  
R1151N (VR=3.3V)  
4.00  
3.50  
3.00  
2.50  
2.00  
1.50  
1.00  
IOUT=0mA  
5.00  
IOUT=0mA  
4.00  
3.00  
IOUT=500mA  
2.00  
IOUT=500mA  
1.00  
0
1 2  
3
4 5  
6
7 8 9 10 11 12 13 14 15 16 17 18  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R1151N (VR=2.5V)  
3.00  
2.75  
2.50  
2.25  
2.00  
1.75  
1.50  
1.25  
1.00  
IOUT=0mA  
IOUT=500mA  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18  
Input Voltage VIN(V)  
Rev. 1.11  
- 10 -  
3) Output Voltage vs. Temperature  
VIN=6.0V  
VIN=4.3V  
R1151N (VR=3.3V)  
R1151N (VR=5.0V)  
IOUT=80mA  
IOUT=80mA  
3.375  
3.355  
3.335  
3.315  
3.295  
3.275  
3.255  
3.235  
3.215  
5.125  
5.075  
5.025  
4.975  
4.925  
4.875  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
R1151N (VR=2.5V)  
VIN=3.5V  
IOUT=80mA  
2.538  
2.513  
2.488  
2.463  
2.438  
-40  
-15  
10  
35  
60  
85  
(°C)  
Temperature Topt  
4) Supply Current vs. Input Voltage  
External Tr.:2SA1441  
R1151N (VR=5.0V,-VD=4.2V)  
IOUT=0mA  
R1151N (VR=9.0V,-VD=8.0V)  
IOUT=0mA  
150  
150  
140  
130  
120  
110  
100  
90  
140  
130  
120  
110  
100  
90  
80  
80  
70  
70  
60  
60  
50  
50  
40  
40  
30  
30  
20  
20  
10  
10  
0
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
Rev. 1.11  
- 11 -  
R1151N (VR=3.3V,-VD=2.9V)  
IOUT=0mA  
150  
140  
130  
120  
110  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18  
Input Voltage VIN(V)  
5) Supply Current vs. Temperature  
a. External Tr.:2SA1441  
R1151N (VR=9.0V)  
R1151N (VR=5.0V)  
VIN=6V  
IOUT=0mA  
VIN=10V  
IOUT=0mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
Temperature Topt  
Temperature Topt  
(°C)  
Rev. 1.11  
- 12 -  
b. External Tr.:2SB703  
R1151N (VR=9.0V)  
R1151N (VR=5.0V)  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
Temperature Topt  
Temperature Topt  
(°C)  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
6) Ripple Rejection vs. Ripple Frequency (Topt=25°C)  
R1151N (VR=9.0V)  
R1151N (VR=5.0V)  
VIN=10Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
80  
VIN=6Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
80  
70  
60  
50  
40  
30  
20  
10  
0
70  
60  
2SB703  
2SA1441  
2SB940  
2SB703  
50  
2SA1441  
40  
30  
20  
10  
0
2SB940  
0.01  
0.1  
1
10  
100  
0.01  
0.1  
1
10  
100  
Ripple Frequency (kHz)  
Ripple Frequency (kHz)  
Rev. 1.11  
- 13 -  
R1151N (VR=3.3V)  
R1151N (VR=2.5V)  
VIN=4.3Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
VIN=3.5Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
80  
70  
60  
50  
40  
30  
20  
10  
0
70  
60  
50  
40  
30  
20  
10  
0
2SB703  
2SB703  
2SA1441  
2SA1441  
2SB940  
2SB940  
0.01  
0.1  
1
10  
100  
0.01  
0.1  
1
10  
100  
Ripple Frequency(kHz)  
Ripple Frequency (kHz)  
7)Ripple Rejection vs. Temperature  
R1151N (VR=3.3V)  
R1151N (VR=5.0V)  
VIN=4.3Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
VIN=6Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
75  
75  
73  
71  
69  
67  
65  
63  
61  
59  
57  
55  
2SA1441  
73  
71  
69  
67  
65  
63  
61  
59  
57  
55  
2SB940  
2SB703  
2SB703  
2SA1441  
2SB940  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
R1151N (VR=2.5V)  
VIN=3.5Vdc+0.5Vp-p,Iout=50mA,CL=10uF  
70  
2SB940  
2SB703  
65  
60  
55  
50  
45  
2SA1441  
-40  
-15  
10  
35  
60  
85  
Temperature Topt  
(°C)  
Rev. 1.11  
- 14 -  
8)Input Transient Response(Topt=25°C)  
a. External Tr.:2SA1441  
R1151N (VR=5.0V)  
R1151N (VR=3.3V)  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
Cout=Ceramic 10uF  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
3.340  
3.330  
3.320  
3.310  
3.300  
3.290  
3.280  
6
Cout=Ceramic 10uF  
5.030  
5.020  
5.010  
5.000  
4.990  
8
7
5
Input Voltage  
6
5
4
3
2
1
0
Input Voltage  
4
3
2
1
0
Output Voltage  
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
Time (us)  
0
25 50 75 100 125 150 175 200 225 250  
Time (uｓ）  
R1151N (VR=2.5V)  
IOUT=50mA  
Cout=Ceramic 10uF  
2.535  
2.525  
2.515  
2.505  
2.495  
2.485  
5
Input Voltage  
4
3
2
1
0
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
Time （uｓ）  
b. External Tr.: 2SB703  
R1151N (VR=5.0V)  
ꢀꢀꢀꢀꢀꢀI  
Cout=Ceramic 10uF  
R1151N (VR=3.3V)  
OUT=50mA  
ꢀꢀꢀꢀꢀꢀ  
IOUT=50mA  
Cout=Ceramic 10uF  
5.030  
5.025  
5.020  
5.015  
5.010  
5.005  
5.000  
4.995  
4.990  
8
3.340  
3.330  
3.320  
3.310  
3.300  
3.290  
3.280  
6
7
6
5
4
3
2
1
0
5
Input Voltage  
Input Voltage  
4
3
2
1
0
Output Voltage  
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
0
25 50 75 100 125 150 175 200 225 250  
Time (us)  
Time (uｓ）  
Rev. 1.11  
- 15 -  
R1151N (VR=2.5V)  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
Cout=Ceramic 10uF  
2.535  
2.525  
2.515  
2.505  
2.495  
2.485  
5
Input Voltage  
4
3
2
1
0
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
Time （uｓ）  
c. External Tr. : 2SB940  
R1151N (VR=5.0V)  
R1151N (VR=3.3V)  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
Cout=Ceramic 10uF  
Cout=Ceramic 10uF  
5.030  
5.025  
5.020  
5.015  
5.010  
5.005  
5.000  
4.995  
4.990  
8
3.340  
3.330  
3.320  
3.310  
3.300  
3.290  
3.280  
6
7
6
5
Input Voltage  
Input Voltage  
4
3
2
1
0
5
4
3
2
1
0
Output Voltage  
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
0
25 50 75 100 125 150 175 200 225 250  
Time (us)  
Time (uｓ）  
R1151N (VR=2.5V)  
ꢀꢀꢀꢀꢀꢀI  
OUT=50mA  
Cout=Ceramic 10uF  
2.535  
2.525  
2.515  
2.505  
2.495  
2.485  
5
4
3
2
1
0
Input Voltage  
Output Voltage  
0
25 50 75 100 125 150 175 200 225 250  
Time （uｓ）  
Rev. 1.11  
- 16 -  
9)Load Transient Response (Topt=25°C)  
a: External Tr.: 2SA1441  
R1151N (VR=5.0ꢀVꢀ)ꢀꢀꢀꢀꢀꢀV  
IN=6.0V  
R1151N (VR=3.3ꢀVꢀ)ꢀꢀꢀꢀꢀꢀꢀ  
VIN=4.3V  
CIN=Ceramic 4.7uF  
ꢀCIN=Ceramic 4.7uF  
COUT=Ceramic 10uF  
COUT=Ceramic 10uF  
3.35  
3.34  
3.33  
3.32  
3.31  
3.30  
3.29  
120  
5.05  
5.04  
5.03  
5.02  
5.01  
5.00  
4.99  
120  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
Output Current  
Output Current  
Output Current  
Output Voltage  
0
100 200 300 400 500 600 700 800 900 100  
0
100 200 300 400 500 600 700 800 900 100  
Time (us)  
0
Time (us)  
0
R1151N (VR=2.5V)  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀV  
IN=3.5V  
ꢀC  
IN=Ceramic 4.7uF  
COUT=Ceramic 10uF  
2.55  
2.54  
2.53  
2.52  
2.51  
2.50  
2.49  
120  
100  
80  
60  
40  
20  
0
Output Current  
Output Voltage  
0
100 200 300 400 500 600 700 800 900 100  
Time (us)  
0
b. External Tr.: 2SB703  
R1151N (VR=5.0V)  
R1151N (VR=3.3V)  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀV  
IN=4.3V  
IN=Ceramic 4.7uF  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀV  
IN=6.0V  
ꢀC  
ꢀC  
IN=Ceramic 4.7uF  
COUT=Ceramic 10uF  
3.35  
3.34  
3.33  
3.32  
3.31  
3.30  
3.29  
120  
100  
80  
60  
40  
20  
0
COUT=Ceramic 10uF  
5.05  
5.04  
5.03  
5.02  
5.01  
5.00  
4.99  
120  
100  
80  
60  
40  
20  
0
Output Current  
Output Voltage  
Output Current  
Output Voltage  
0
100 200 300 400 500 600 700 800 900 100  
Time (us)  
0
100 200 300 400 500 600 700 800 900 100  
Time (us)  
0
0
Rev. 1.11  
- 17 -  
R1151N (VR=2.5V)  
VIN=3.5V  
CIN=Ceramic 4.7uF  
COUT=Ceramic 10uF  
2.55  
2.54  
2.53  
2.52  
2.51  
2.50  
2.49  
120  
100  
80  
60  
40  
20  
0
Output Current  
Output Voltage  
0
100 200 300 400 500 600 700 800 900 100  
Time (us)  
0
10) Detector Threshold vs. Temperature  
R1151N (-VDET=8.0V)  
8.70  
R1151N (-VDET=4.2V)  
4.60  
4.50  
4.40  
4.30  
4.20  
4.10  
4.00  
8.60  
8.50  
8.40  
8.30  
8.20  
8.10  
8.00  
7.90  
7.80  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
Temperature Topt(°C)  
Temperature Topt  
R1151N (-VDET=2.9V)  
R1151N (-VDET=1.7V)  
3.10  
1.85  
1.80  
1.75  
1.70  
1.65  
1.60  
3.05  
3.00  
2.95  
2.90  
2.85  
2.80  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
Rev. 1.11  
- 18 -  
11)VDET Output Voltage vs. Input Voltage  
R1151N(-VDET=8.0V Pull-up to VDD)  
9.0  
R1151N(-VDET=8.0V Pull-up to 5V)  
6.00  
5.00  
4.00  
3.00  
2.00  
1.00  
0.00  
8.0  
7.0  
6.0  
5.0  
4.0  
°C  
Topt=-40  
°C  
°C  
°C  
Topt=-40  
Topt=25  
3.0  
Topt=25  
°C  
°C  
Topt=85  
Topt=85  
2.0  
1.0  
0.0  
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
5
4
Input Voltage VIN（V)  
Input Voltage VIN(V)  
R1151N(-VDET=4.2V Pull-up to VDD)  
R1151N(-VDET=4.2V Pull-up to 5V)  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
Topt=‐40  
°C  
°C  
°C  
Topt=-40  
°C  
Topt=25  
Topt=25 °C  
Topt=85  
°C  
Topt=85  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R1151N(-VDET=2.9V Pull-up to VDD)  
R1151N(-VDET=2.9V Pull-up to 5V)  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
Topt=-40  
Topt=25  
Topt=85  
°C  
°C  
°C  
°C  
Topt=-40  
Topt=25  
°C  
Topt=85  
°C  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
Rev. 1.11  
- 19 -  
R1151N(-VDET=1.7V Pull-up to 5V)  
R1151N(-VDET=1.7V Pull-up to VDD)  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
2.5  
2.3  
2.0  
1.8  
1.5  
1.3  
1.0  
0.8  
0.5  
0.3  
0.0  
Topt=‐40  
°C  
Topt=-40  
°C  
Topt=25  
Topt=85  
°C  
°C  
Topt=25  
Topt=85  
°C  
°C  
0
0.25 0.5 0.75  
1
1.25 1.5 1.75  
2
2.25 2.5  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
12) Nch Driver Output Current vs. VDS(Topt=25°C)  
R1151N(-VDET=8.0V)  
140  
R1151N(-VDET=4.2V)  
VDD=4.0V  
60  
50  
40  
30  
20  
10  
0
VDD=7.5V  
120  
100  
80  
60  
40  
20  
0
VDD=7.0V  
VDD=6.5V  
VDD=6.0V  
VDD=5.5V  
VDD=3.5V  
VDD=3.0V  
VDD=5.0V  
VDD=4.5V  
VDD=4.0V  
VDD=2.5V  
VDD=2.0V  
VDD=1.5V  
VDD=3.5V  
VDD=3.0V  
VDD=2.5V  
VDD=2.0V  
VDD=1.5V  
VDD=1.0V  
VDD=1.0V  
2
0
1
3
4
5
6
0
1
2
3
4
5
6
7
8
9
10  
VDS(V)  
VDS(V)  
R1151N(-VDET=2.9V)  
R1151N(-VDET=1.7V)  
30  
25  
20  
15  
10  
5
8
7
6
5
4
3
2
1
VDD=1.5V  
VDD=2.5V  
VDD=2.0V  
VDD=1.25V  
VDD=1.5V  
V
DD=1.0V  
VDD=1.0V  
0
0
0
0
0.5  
1
1.5  
VDS(V)  
2
2.5  
3
0.5  
1
1.5  
2
VDS(V)  
Rev. 1.11  
- 20 -  
13) Nch Driver Output Current vs. Input Voltage  
R1151N(-VDET=8.0V)  
40  
R1151N(-VDET=4.2V)  
40  
35  
30  
25  
20  
15  
10  
5
°C  
Topt=85  
35  
30  
25  
20  
15  
10  
5
Topt=25  
°
C
Topt=85  
°C  
Topt=-40  
°C  
Topt=25  
°C  
Topt=-40  
°C  
0
0
0
2
4
6
8
10  
0
1
2
3
4
5
IN  
Input Voltage VIN(V)  
Input Voltage V (V)  
R1151N(-VDET=2.9V)  
R1151N(-VDET=1.7V)  
40  
35  
30  
25  
20  
15  
10  
5
40  
35  
30  
25  
20  
15  
10  
5
°C  
Topt=85  
°C  
Topt=85  
Topt=25  
Topt=25  
°C  
°C  
Topt=-40  
°C  
Topt=-40  
°C  
0
0
0
1
2
3
4
0
0.5  
1
1.5  
2
2.5  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
14)CD pin Threshold Voltage vs. Temperature  
R1151N(-VDET=8.0V)  
3.0  
R1151N(-VDET=1.7V)  
3.0  
2.8  
2.6  
2.4  
2.2  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
2.8  
2.6  
2.4  
L-> H  
H-> L  
L->H  
2.2  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
H->L  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
Temperature Topt  
Temperature Topt  
(°C)  
Rev. 1.11  
- 21 -  
15)CD Pin Output Current vs. Input Voltage  
R1151N(-VDET=4.2V)  
R1151N(-VDET=8.0V)  
0.45  
0.45  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
Topt=-40  
°C  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
°C  
Topt=-40  
Topt=25  
°C  
Topt=25  
°C  
Topt=85  
°C  
Topt=85  
°C  
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0  
Input Voltage VIN(V)  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0  
Input Voltage VIN(V)  
R1151N(-VDET=1.7V)  
DET  
R1151N(-V =2.9V)  
0.45  
0.45  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
°C  
Topt=-40  
°C  
°C  
Topt=85  
°C  
Topt=25  
Topt=-40  
Topt=25  
°C  
Topt=85  
2.5  
°C  
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0  
Input Voltage VIN(V)  
0.0  
0.5  
1.0  
1.5  
2.0  
3.0  
3.5  
Input Voltage VIN(V)  
16)CD Pin Output Current vs. VDS (Topt=25°C)  
R1151N(-VDET=8.0V)  
R1151N(-VDET=4.2V)  
2.5  
6
VDD=4.0V  
5
VDD=7.5V  
VDD=7.0V  
2
1.5  
1
VDD=6.5V  
VDD=6.0V  
VDD=5.5V  
VDD=3.5V  
4
3
2
1
0
VDD=3.0V  
VDD=2.5V  
VDD=5.0V  
VDD=4.5V  
VDD=4.0V  
VDD=3.5V  
VDD=3.0V  
VDD=2.5V  
0.5  
0
VDD=2.0V  
VDD=1.5V  
VDD=2.0V  
VDD=1.5V  
0
0.5  
1
1.5  
2
2.5  
VDS (V)  
3
3.5  
4
4.5  
5
0
1
2
3
4
5
6
7
8
9
VDS (V)  
Rev. 1.11  
- 22 -  
R1151N(-VDET=2.9V)  
R1151N(-VDET=1.7V)  
0.20  
0.18  
0.16  
0.14  
0.12  
0.10  
0.08  
0.06  
0.04  
0.02  
0.00  
1.00  
0.90  
0.80  
0.70  
0.60  
0.50  
0.40  
0.30  
0.20  
0.10  
0.00  
VDD=1.5V  
VDD=2.4V  
VDD=2.0V  
VDD=1.2V  
VDD=1.5V  
0
0.25 0.5 0.75  
1
1.25 1.5 1.75  
0
0.5  
1
1.5  
VDS (V)  
2
2.5  
3
VDS (V)  
17) Output Delay Time of Release vs. Temperature  
R1151N(-VDET=8.0V)  
R1151N(-VDET=1.7V)  
External Capacitance=220pF  
External Capacitance=220pF  
3.00  
2.75  
2.50  
2.25  
2.00  
1.75  
1.50  
1.25  
1.00  
0.75  
0.50  
3.00  
2.75  
2.50  
2.25  
2.00  
1.75  
1.50  
1.25  
1.00  
0.75  
0.50  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
(°C)  
(°C)  
Temperature Topt  
Temperature Topt  
18) Output Delay Time of Release vs. External Capacitance for CD pin (Topt=25°C)  
R1151N(-VDET=1.7V)  
R1151N(-VDET=8.0V)  
100  
10  
1
100  
10  
1
0.1  
0.1  
10  
100  
1000  
10  
100  
1000  
External Capacitance for CD pin CD (pF)  
External Capacitance for CD pin CD (pF)  
Rev. 1.11  
- 23 -  
19)Output Delay Time of Detect vs. External Capacitance for CD pin (Topt=25°C)  
R1151N(-VDET=8.0V)  
R1151N (-VDET=4.2V)  
10  
10  
1
1
10  
100  
1000  
10  
100  
1000  
External Capacitance for CD pin CD(pF)  
External Capacitance for CD pin CD(pF)  
R1151N(-VDET=2.9V)  
R1151N(-VDET=1.7V)  
10  
10  
1
1
10  
100  
1000  
10  
100  
1000  
External Capacitance for CD pin CD(pF)  
External Capacitance for CD pin CD(pF)  
■ Calculation of Output Delay Time of Release  
tpLH(s)=2.31×C(F)/(300×10-9)(A)  
tpLH vs. Capacitance  
tpLH=2.31*C(F)/300*10^-9(A)  
11  
10  
9
8
7
6
Calculated value  
Measured value  
5
4
3
2
1
0
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400  
External Capacitance for CD pin Cd(pF)  
Rev. 1.11  
- 24 -  
■ 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:  
VDET  
EXT  
CD  
R1151NXXXC  
VIN  
Vout  
Ceramic  
Spectrum  
Analyzer  
Ceramic  
Vin  
Capacitanc  
Capacitor  
10  
F
µ
S.A.  
GND  
4.7  
F
µ
ESR  
IIout  
Measuring Circuit for white noise; R1112NXX1B  
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)  
VR=2.5V (2SA1441)  
VR=9.0V (2SA1441)  
100  
10  
100  
10  
1
1
0.1  
0.1  
0.01  
0.01  
0
50 100 150 200 250 300 350 400 450 500  
Output Current IOUT(mA)  
0
50 100 150 200 250 300 350 400 450 500  
Output Current IOUT (mA)  
Rev. 1.11  
- 25 -  
VR=2.5V (2SB703)  
VR=9.0V (2SB703)  
100  
100  
10  
10  
1
1
0.1  
0.1  
0.01  
0.01  
250  
0
50 100 150 200  
300 350 400 450 500  
0
50 100 150  
250 300 350 400 450 500  
200  
Output Current IOUT(mA)  
VR=2.5V (2SB940)  
Output Current IOUT(mA)  
VR=9.0V (2SB940)  
100  
10  
100  
10  
1
1
0.1  
0.1  
0.01  
0.01  
0
250  
150  
250  
50 100 150 200  
300 350 400 450 500  
0
50 100  
200  
300 350 400 450 500  
Output Current IOUT (mA)  
Output Current IOUT(mA)  
Rev. 1.11  
- 26 -  

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