R1230D251B-TL RICOH [RICOH electronics devices division], R1230D251B-TL Datasheet - Page 4

• Manufacturer Part Number: R1230D251B-TL
• Description: PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
• Manufacturer: RICOH [RICOH electronics devices division]

Rev. 1.12
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
Pin No.
1
2
3
4
5
6
7
8
Symbol
V
V
Topt
Tstg
V
MODE
V
V
V
I
P
LX
DD
CE
LX
FB
IN
D
V
Symbol
OUT
MODE
PGND
AGND
V
V
CE
Lx
DD
IN
/V
V
V
Lx Pin Voltage
CE Pin Input Voltage
MODE Pin Input Voltage
V
L
Power Dissipation
Operating Temperature Range
Storage Temperature Range
FB
X
IN
DD
FB
Pin Output Current
Supply Voltage
Pin Input Voltage
Pin Voltage
Voltage Supply Pin
Ground Pin
Voltage Supply Pin
Chip Enable Pin (active with “H”)
Output/Feedback Pin
Mode changer Pin (PWM mode at “L”, VFM mode at “H”.)
Ground Pin
Lx Pin
Item
- 4 -
Description
-0.3 V
-0.3 V
-0.3 V
-0.3 V
-55 +125
-40 +85
Rating
-0.8
250
6.5
6.5
IN
IN
IN
IN
+0.3
+0.3
+0.3
+0.3
(AGND=PGND=0V)
mW
Unit
V
V
V
V
V
V
A
C
C