R1224N122G RICOH [RICOH electronics devices division], R1224N122G Datasheet - Page 7

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

TYPICAL APPLICATION AND APPLICATION HINTS
(1) Fixed Output Voltage Type (R1224Nxx2E/F/G/H/L/M except xx=10)
(2) Adjustable Output Type (R1224N102G/H/M) Example: Output Voltage=3.2V
PMOS: HAT1044M (Hitachi)
SD1 : RB063L-30 (Rohm)
C1
R1
PMOS: HAT1044M (Hitachi)
SD1 : RB063L-30 (Rohm)
C1
R1
R1
: 10µF (Ceramic Type)
: 10Ω, R2=22kΩ, R3=2.7kΩ, R4=33kΩ
R1
: 10µF (Ceramic Type)
: 10Ω
C1
C2
C1
C2
5
1
5
1
V
CE
CE CONTROL
IN
V
CE
CE CONTROL
IN
R1224N
L : CR105-270MC (Sumida, 27µH)
C3 : 47µF (Tantalum Type)
C2 : 0.1µF (Ceramic Type)
R1224N
GND
EXT
4
2
GND
EXT
4
2
PMOS
PMOS
L : CR105-270MC (Sumida, 27µH)
C3 : 47µF (Tantalum Type)
C2 : 0.1µF (Ceramic Type)
V
V
FB
OUT
3
3
SD
L
R4
SD
L
C4: 1000pF (Ceramic Type)
R2
R3
C4
C3
LOAD
LOAD
C3
R1224N
7