PS0020 Datasheet, PDF (1/10 Pages) Power IC Ltd. – Low Iq Synchronous Boost Converter with Output Disconnect

PS0020
Low Iq Synchronous Boost
Converter with Output Disconnect
FEATURES
• Up to 92% Efficiency.
• Low Start-Up Voltage: 0.8V
• Internal Synchronous Rectifier
• Up to 100KHz Switching Allows Tiny
External Components
• 2.5V to 5V Output Range (Note 3)
• Fully Discharged Shutdown Output Voltage
• Logic Controlled Shutdown (<1μA)
• Pulse Skipping at Light Load for Extended
Battery Life
• Generates 3.3V at 20mA from Single AA
Cell
• Stable with Ceramic Output Capacitor
• 6L SOT-26 Package
APPLICATIONS
• MP3 / MP4 players
• PDAs and Organizers
• Digital Cameras
• Wireless Mice / Keyboards
• Portable Medical Equipments
• GPS Receivers
• Remote controls
• Wireless Headsets
DESCRIPTION
The PS0020 is a synchronous, step-up DC/DC
converter delivering high efficiency in a 6-leads
SOT-26 package. The device having an internal
NMOS switch and PMOS synchronous rectifier has
the capacity of supplying 3.3V at 20mA from a
single AA cell input.
A high frequency switching minimizes board area
by allowing the use of tiny, low profile inductors
and ceramic capacitors.
The PS0020 provides automatic pulse skipping at
light loads reducing supply current for extended
battery life. At shutdown the PS0020 fully
discharges the output to ground and takes very low
supply current.
The PS0020 is available in small SOT26 package
with both fixed and adjustable output voltage
versions.
TYPICAL APPLICATION
Version 1.1
www.picsemi.com
1
July 6, 2007
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