ꢀ PIN DESCRIPTION
Symbol
Description
Pin No.
1
2
3
4
5
6
7
8
V
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
IN
PGND
V
DD
CE
V
/V
OUT FB
MODE
AGND
Lx
ꢀ ABSOLUTE MAXIMUM RATINGS
(AGND=PGND=0V)
Symbol
Item
Supply Voltage
Rating
6.5
6.5
Unit
V
V
V
IN
V
V
IN
V
DD
Pin Voltage
DD
V
LX
Lx Pin Voltage
V
-0.3 V +0.3
IN
V
CE Pin Input Voltage
MODE Pin Input Voltage
V
V
CE
-0.3 V +0.3
IN
V
MODE
-0.3 V +0.3
IN
V
I
P
Topt
Tstg
V
Pin Input Voltage
V
A
mW
°C
°C
FB
LX
FB
-0.3 V +0.3
IN
L Pin Output Current
-0.8
250
-40 +85
-55 +125
X
Power Dissipation
Operating Temperature Range
Storage Temperature Range
D
Rev. 1.12
- 4 -
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
