R1224N122G RICOH [RICOH electronics devices division], R1224N122G Datasheet - Page 19

• Manufacturer Part Number: R1224N122G
• Description: PWM/VFM step-down DC/DC Converter
• Manufacturer: RICOH [RICOH electronics devices division]

2) Efficiency vs. Output Current (*Note)
R1224N182G (V
R1224N182F (V
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.1
0.1
0.1
R1224N502M
1
1
1
Output Current l
Output Current l
Output Current l
V
V
V
IN
IN
IN
IN
IN
=3.3V)
=3.3V)
6.5V
12V
15V
10
10
10
L=27µH
100
100
100
CDRH127-10µH
CDRH127-10µH
OUT
OUT
OUT
(mA)
(mA)
(mA)
1000
1000
1000
10000
10000
10000
*Note: Typical characteristics 1) are obtained with using
the following components;
PMOS : IRF7406 (IR)
L
SD
C1
C2
C3
R1
R1224N182G (V
R1224N182F (V
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
: CDRH127-100MC (Sumida: 10µH)
: RB083L-20 (Rohm)
: 25SC47 (Sanyo/OS-con: 47µF/25V) × 2
: 0.1µF (Ceramic Type)
: 10SA220 (Sanyo/OS-con: 220µF/10V)
: 10 Ω
0
0
0.1
0.1
1
1
Output Current l
Output Current l
IN
IN
=5.0V)
=5.0V)
10
10
100
100
CDRH127-10µH
CDRH127-10µH
OUT
OUT
(mA)
(mA)
1000
1000
10000
10000
R1224N
19