PS0100 Datasheet, PDF (1/13 Pages) Power IC Ltd. – 600mA Synchronous Boost Converter with Output Disconnect

PS0100
600mA Synchronous Boost
Converter with Output Disconnect
FEATURES
ƒ Up to 92% efficiency
ƒ Low start-up voltage 0.8V
ƒ Internal synchronous rectifier
ƒ Up to 2MHz switching allows for tiny
external components
ƒ 0.5V to 4.4V input range
ƒ 2.5V to 5.0V output range (Note 3)
ƒ Fully discharged shutdown output voltage
ƒ Logic controlled shutdown (<1µA)
ƒ Low 250µA operating supply current
(measured at VOUT)
ƒ Pulse skipping at light load for extended
battery life
ƒ Generates 3.3V at 100mA from single AA
cell
ƒ Stable with ceramic output capacitor
ƒ Low profile 6-Leads SOT-26 package
APPLICATIONS
ƒ MP3 / MP4 players
ƒ PDAs and organizers
ƒ Digital cameras
ƒ Wireless mice/ keyboards
ƒ Portable medical equipment
ƒ Cordless phones
ƒ Wireless Headsets
TYPICAL APPLICATION CIRCUIT
DESCRIPTION
The PS0100 is a synchronous, step-up DC/DC
converter delivering high efficiency in a SOT-26
package. The device has an internal NMOS switch
and PMOS synchronous rectifier and has the
capacity of supplying 3.3V at 100mA from a single
AA cell input.
High frequency switching (up to 2MHz) minimizes
the board area by allowing the use of tiny, low
profile inductors and ceramic capacitors.
The PS0100 provides automatic pulse skipping at
light loads, thus reducing the supply current for
extended battery life. At shutdown, the PS0100
fully discharges the output to ground and draws no
supply current.
The PS0100 is available in small SOT-26 package
with both fixed and adjustable output voltage
versions.
July 2007
www.picsemi.com
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