R1221N Datasheet, PDF (16/21 Pages) RICOH electronics devices division – Step-down DC/DC Converter with Voltage Detector

3.06
R1221N33AB(VD=3.0V) ^VIN=6V
3.04
3.02
3.00
2.98
2.96
2.94
-50
0
50
100
Temperature Topt_(°C)
8) Oscillator Frequency vs. Temperature
L=27uH
R1221N33AB _VIN=4.5V
600
550
500
450
400
-50
0
50
100
Temperature Topt_(°C)
9) Supply Current vs. Temperature
135
130
125
120
115
110
105
100
95
90
-50
R1221N33AH
VIN15V
VIN13.2V
VIN8V
0
50
100
Temperature Topt(^°C)
360
340
320
300
280
260
240
-50
100
90
80
70
60
50
-50
12345
Rev. 1.11
- 16 -
R1221N25XA
L=27uH
VIN=3.7V
0
50
100
Temperature Topt(°C)
R1221N33AG
VIN15V
VIN13.2V
VIN8V
0
50
100
Temperature Topt(°C)