R1223N Datasheet, PDF (10/19 Pages) RICOH electronics devices division – PWM/VFM Step-down DC/DC Converter

n TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1223N332H
L=27uH
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
12V
8V
4.5V
1E-05 0.0001 0.001 0.01 0.1 1
Output Current IOUT(A)
2) Efficiency vs. Output Current
CD104-27uH
R1223N332A(VIN=4.5V) _Si3443DV
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
Output Current IOUT(mA)
1000
100
90
80
70
60
50
40
30
20
10
0
0.1
CD104-27uH
R1223N332B(VIN=4.5V)_Si3443DV
1
10
100
Output Current IOUT(mA)
1000
12345
Rev. 1.11
- 10 -
1.530
R1223N152H
L=27uH
1.520
1.510
1.500
1.490
13.2V
8V
5V
1.480
2.3V
1.470
1E-05 0.0001 0.001 0.01 0.1 1
Output Current IOUT(A)
100
90
80
70
60
50
40
30
20
10
0
0.1
100
90
80
70
60
50
40
30
20
10
0
0.1
CD104-27uH
R1223N332A(VIN=12V) _Si3443DV
1
10
100
Output Current IOUT(mA)
1000
CD104-27uH
R1223N332B(VIN=12V) _Si3443DV
1
10
100
Output Current IOUT(mA)
1000