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LR9908 Datasheet(PDF) 1 Page - Leshan Radio Company

Part # LR9908
Description  TINY PACKAGE HIGH EFFICIENCY STEP-UP DC/DC CONVERTER
Download  8 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR9908 Datasheet(HTML) 1 Page - Leshan Radio Company

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TINY PACKAGE HIGH EFFICIENCY
STEP-UP DC/DC CONVERTER
Introduction
The LR9908 is a CMOS step-up
switching DC/DC converter that mainly
consists of a reference voltage source, an
oscillator, and a comparator. The LR9908
allows the duty ratio to be automatically
switched according to the load (light load:
66%, high output current: 78%), enabling
products with a low ripple over a wide
range, high efficiency, and high output
current. With the LR9908, a step-up
switching
DC/DC
converter
can
be
configured by using an external coil,
capacitor, diode and NMOS. This feature,
along with the mini package and low
current consumption, makes the LR9908
ideal for applications such as the power
supply unit of portable equipment.
Applications
• PDA
• DSC
• LCD Panel
• RF-Tags
• MP3
• Portable Instrument
• Wireless Equipment
Features
• Low voltage operation: Oscillation start
voltage at 0.8V
• Duty ratio: 66/78%, built-in auto switching
• External parts: Coil, capacitor, diode,
NMOS
• High efficiency:±85%(typ.)
• Output voltage Adjustable
• Providing Flexibility for Using External
Power Switches
• Zero Shutdown Mode Supply Current
• 6µA Quiescent (Switch-off) Supply Current
• Small SOT23-5,SOT89-5 Package
Ordering Information
LR9908
LR9908
LESHAN RADIO COMPANY, LTD.
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