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R1223N252E-TR Datasheet(PDF) 3 Page - RICOH electronics devices division

Part # R1223N252E-TR
Description  PWM/VFM Step-down DC/DC Converter
Download  19 Pages
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

R1223N252E-TR Datasheet(HTML) 3 Page - RICOH electronics devices division

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12345
Rev. 1.11
- 3 -
n
n
n
n PIN CONFIGURATION
l SOT-23-5
12
3
4
VIN
EXT
CE GND VOUT
(mark side)
5
n PIN DESCRIPTION
Pin No.
Symbol
Description
1
CE
Chip Enable Pin
2
GND
Ground Pin
3VOUT
Pin for Monitoring Output Voltage
4
EXT
External Transistor Drive Pin
5VIN
Power Supply Pin
n
n
n
n ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
VIN
VIN Supply Voltage
15
V
VEXT
EXT Pin Output Voltage
-0.3
~VIN+0.3
V
VCE
CE Pin Input Voltage
-0.3
~VIN+0.3
V
VOUT
VOUT Pin Input Voltage
-0.3
~VIN+0.3
V
IEXT
EXT Pin Inductor Drive Output Current
±25
mA
PD
Power Dissipation
250
mW
Topt
Operating Temperature Range
-40
~+85
°C
Tstg
Storage Temperature Range
-55
~+125
°C


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