R1232D Datasheet, PDF (18/24 Pages) RICOH electronics devices division – PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER

R1232D
VIN=5.0V, L=2.7µH Rload=0Ω
CE
5V/div
VOUT
1V/div
IL
200mA/div
100µs/div
9) Output Voltage vs. Temperature
R1232D121A
1.24
VIN=5.0V
1.22
1.20
1.18
1.16
1.14
-40 -15 10 35 60 85
Temperature Topt(°C)
10) Oscillator Frequency vs. Temperature
R1232D121A
1.30
VIN=5.0V
1.20
1.10
1.00
0.90
0.80
0.70
-40 -15 10 35 60 85
Temperature Topt(°C)
CE
5V/div
VOUT
1V/div
IL
200mA/div
VIN=5.0V, L=2.7µH Rload=33Ω
100µs/div
R1232D331A
3.40
VIN=5.0V
3.35
3.30
3.25
3.20
-40 -15 10 35 60 85
Temperature Topt(°C)
R1232D331B
2.50
VIN=5.0V
2.40
2.30
2.20
2.10
2.00
-40 -15 10 35 60 85
Temperature Topt(°C)
18