R1223N Datasheet, PDF (14/19 Pages) RICOH electronics devices division – PWM/VFM Step-down DC/DC Converter

3.36
3.34
3.32
3.30
3.28
3.26
3.24
0
R1223N332B
L=27uH
5
10
15
Input Voltage VIN(V)
6) Output Voltage vs. Temperature
R1223N332H
3.33
L=27uH
VIN=4.5V
3.32
3.31
3.30
3.29
3.28
3.27
-50
0
50
100
Temperature Topt (°C)
7) Oscillator Frequency vs. Temperature
R1223N252A ^L=27uH
VIN=3.7V
360
340
320
300
280
260
240
-50
0
50
100
Temperature Topt
3.36
3.34
3.32
3.30
3.28
3.26
3.24
0
1.51
1.50
1.49
1.48
1.47
-50
600
550
500
450
400
-50
12345
Rev. 1.11
- 14 -
R1223N332A
L=27uH
5
10
15
Input Voltage VIN(V)
R1223N152B
L=27uH
VIN=2.7V
0
50
100
Temperature Topt (°C)
R1223N332B
L=27uH
VIN=4.5V
0
50
100
Temperature Topt