R1211X Datasheet, PDF (4/33 Pages) RICOH electronics devices division – Step-up DC/DC Controller

s PIN DESCRIPTIONS
Pin No.
SON6
1
2
3
4
5
6
Symbol
Description
SOT23-6W
1
DELAY Pin for External Capacitor (for Setting Output Delay of Protection)
5
GND Ground Pin
6
EXT External FET Drive Pin (CMOS Output)
4
VIN Power Supply Pin
3
VFB Feedback Pin for monitoring Output Voltage
2
AMPOUT Amplifier Output Pin(A/C Version) or Chip Enable Pin(B/D
or CE Version, Active at “H”)
s ABSOLUTE MAXIMUM RATINGS
Symbol
VIN
VEXT
VDLY
VAMP
VCE
VFB
IAMP
IEXT
PD
Topt
Tstg
Item
VIN Pin Voltage
EXT Pin Output Voltage
DELAY Pin Voltage
AMPOUT Pin Voltage
CE Pin Input Voltage
VFB Pin Voltage
AMPOUT Pin Current
EXT Pin Inductor Drive Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Rating
Unit
6.5
V
-0.3∼VIN+0.3
V
-0.3∼VIN+0.3
V
-0.3∼VIN+0.3
V
-0.3∼VIN+0.3
V
-0.3∼VIN+0.3
V
±10
mA
±50
mA
250
mW
-40∼+85
°C
-55∼+125
°C
Rev. 1.10
-4-