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LR8501 Datasheet(PDF) 1 Page - Leshan Radio Company

Part No. LR8501
Description  1.5MHz 600mA Synchronous Step-Down Converter with Low Quiescent Current
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Maker  LRC [Leshan Radio Company]
Homepage  http://www.lrc.cn/
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LR8501 Datasheet(HTML) 1 Page - Leshan Radio Company

 
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LR8501①②③④
INTRODUCTION:
FEATURES:
The LR8501
is a 1.5MHz constant
frequency, slope compensated current
mode
PWM
synchronous
step-down
converter. It is ideal for powering portable
equipment which runs from a single cell
Lithium-Ion battery. 100% duty cycle
provides low dropout operation, extending
battery life in portable systems. In power
saving mode, 40μA quiescent current is
very suitable for DSP/MCU in standby
operation; and in active mode, low output
ripple voltage is good enough for noise
sensitive applications. The two modes can
be automatically switched according to the
load current.
High efficiency : Up to 96%
Output Current: 600mA (Typ.)
1.5MHz Constant Switching Frequency
No Schottky Diode Required
Input Voltage: 1.8V to 5.5V
0.6V Reference Allows Low Output
Voltage
Low Dropout: 100% duty Cycle
Low Quiescent Current: 40μA
Shutdown Current: <1μA
Current Mode Operation for Excellent
Line and Load Transient Response
Built-in Thermal Protection
Package: SOT-23-5
APPLICATIONS:
Cellular and Smart Phones
Personal Information Appliances
Wireless and DSL Modems
Digital Still and Video Cameras
Microprocessors Core Supplies
Portable consumer equipments
PIN CONFIGURATION:
ORDER INFORMATION:
DESIGNATOR
SYMBOL
DESCRIPTION
A
Standard
②③
Integer
Output Voltage
e.g.1.8V=②:1, ③:8
Adj=②:, ③:
M/MR
Package:SOT-23-5
1.5MHz 600mA Synchronous Step-Down
Converter with Low Quiescent Current
LR8501 Series
LESHAN RADIO COMPANY, LTD.
1/11
Ver1.0


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