R1221N RICOH electronics devices division, R1221N Datasheet - Page 19

• Manufacturer Part Number: R1221N
• Description: Step-down DC/DC Converter with Voltage Detector
• Manufacturer: RICOH electronics devices division

16) VD
17) Load Transient Response
Rev. 1.11
3.4
3.3
3.2
3.1
2.9
2.8
2.7
2.6
2.5
2.4
3.4
3.3
3.2
3.1
2.9
2.8
2.7
2.6
2.5
2.4
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
3
3
OUT
0
0
-50
“L” Output Current vs. Temperature
R1221N33AD
R1221N33AA
R1221N33AB
Time (sec)
Temperature Topt
Time (sec)
0.0005
0
0.0005
50
V
L=27uH
V
L=27uH
(°C)
IN
IN
0.001
=5V
=5V
0.001
500
0.1
500
0.1
100
- 19 -
3.6
3.5
3.4
3.3
3.2
3.1
2.9
2.8
2.7
2.6
3.6
3.5
3.4
3.3
3.2
3.1
2.9
2.8
2.7
2.6
3
3
0
0
R1221N33AA
R1221N33AB
Time (sec)
Time (sec)
0.05
0.05
12345
V
L=27uH
V
L=27uH
IN
IN
=5V
0.1
=5V
0.1
500
500
0.1
0.1