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LR8509 Datasheet(PDF) 2 Page - Leshan Radio Company

Part # LR8509
Description  1.5MHz 600mA Synchronous Step-Down Converter
PDF  10 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR8509 Datasheet(HTML) 2 Page - Leshan Radio Company

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Tabel1. Pin Description
PIN NUMBER
PIN NAME
FUNCTION
1
VIN
Power Input
2
VSS
Ground
3
CE
Chip Enable Pin
4
VOUT/FB
Output Pin/Feedback(ADJ Version)
5
SW
External Inductor Connection Pin
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
(Unless otherwise specified, Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
VIN
VSS-0.3~VSS+7
V
CE,SW,FB/VOUT Voltage
VSS-0.3~VIN+0.3
V
Peak SW Sink and Source
Current
ISWMAX
1500
mA
Power Dissipation
SOT-23-5
Pd
400
mW
Operating Temperature
Topr
-40~+85
℃
Junction Temperature
Tj
125
℃
Storage Temperature
Tstg
-40~+125
℃
Soldering Temperature & Time
Tsolder
260℃, 10s
LESHAN RADIO COMPANY, LTD.
2/10
MARKING INFORMATION
LR8509AM:
B1YW
B1---8509
Y---Year Code
W---Week Code(1-52 week are showed by a-z and A-Z)



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