R1224N Datasheet, PDF (4/42 Pages) RICOH electronics devices division – PWM/VFM step-down DC/DC Converter

R1224N
PIN CONFIGURATIO
• SOT-23-5
5
4
(mark side)
123
PIN DESCRIPTION
Pin No
1
2
3
4
5
Symbol
CE
GND
VOUT (VFB)
EXT
VIN
Pin Description
Chip Enable Pin (“H” Active)
Ground Pin
Pin for Monitoring Output Voltage (Feedback Voltage)
External Transistor Drive Pin (CMOS Output)
Power Supply Pin
ABSOLUTE MAXIMUM RATINGS
Symbol
VIN
VEXT
VCE
VOUT
IEXT
PD
Topt
Tstg
Item
VIN Supply Voltage
EXT Pin Output Voltage
CE Pin Input Voltage
VOUT/VFB Pin Input Voltage
EXT Pin Inductor Drive Output Current
Power Dissipation (SOT-23-5)*
Operating Temperature Range
Storage Temperature Range
Rating
20
−0.3 to VIN+0.3
−0.3 to VIN+0.3
−0.3 to VIN+0.3
± 50
420
−40 to +85
−55 to +125
Unit
V
V
V
V
A
mW
°C
°C
* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4