R1151N Datasheet, PDF (15/26 Pages) RICOH electronics devices division – Boost type Voltage Regulator with Reset

R1151N (VR=2.5V)
VIN=3.5Vdc+0.5Vp-p, Iout=50mA, CL=10µF
70
2SB940
2SB703
65
60
2SA1441
55
50
45
-40 -15
10
35
60
85
Temperature Topt(°C)
8) Input Transient Response(Topt=25°C)
a. External Tr.:2SA1441
5.030
R1151N (VR=5.0V)
IOUT=50mA
COUT=Ceramic 10µF
8
7
5.020
Input Voltage
6
5
5.010
4
Output Voltage
3
5.000
2
1
4.990
0
0 25 50 75 100 125 150 175 200 225 250
Time (µs)
2.535
R1151N (VR=2.5V)
IOUT=50mA
COUT=Ceramic 10µF
5
2.525
Input Voltage
4
2.515
3
Output Voltage
2.505
2
2.495
1
2.485
0
0 25 50 75 100 125 150 175 200 225 250
Time (µs)
R1151N
3.340
3.330
3.320
R1151N (VR=3.3V)
IOUT=50mA
COUT=Ceramic 10µF
6
5
Input Voltage
4
3.310
3
Output Voltage
3.300
2
3.290
1
3.280
0
0 25 50 75 100 125 150 175 200 225 250
Time (µs)
15