R1230D251B-TL RICOH [RICOH electronics devices division], R1230D251B-TL Datasheet - Page 2
R1230D251B-TL
Manufacturer Part Number
R1230D251B-TL
Description
PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
Manufacturer
RICOH [RICOH electronics devices division]
Datasheet
1.R1230D251B-TL.pdf
(20 pages)
- Current page: 2 of 20
- Download datasheet (881Kb)
Lx
Lx
Rev. 1.12
V
V
R1230DXX1A/B
R1230D001C/D
IN
IN
BLOCK DIAGRAM
PGND
PGND
Current Protection
Current Protection
OUTPUT
OUTPUT
CONTROL
CONTROL
PWM/VFM
PWM/VFM
CONTROL
CONTROL
V
V
DD
DD
AGND
AGND
Soft Start
Soft Start
Phase Compensation
Phase Compensation
- 2 -
UVLO
UVLO
OSC
OSC
Vref
Vref
MODE
MODE
Chip Enable
Chip Enable
CE
“L”= PWM
“L”= PWM “H”= VFM
“H”= VFM
“H” Active
“H” Active
CE
CE
V
V
OUT
FB
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