XA3200 Datasheet: Regulated Charge Pump DC/DC Converter





XA3200 Regulated Charge Pump DC/DC Converter Datasheet

Part Number XA3200
Description Regulated Charge Pump DC/DC Converter
Manufacture XINNA SEMI
Total Page 9 Pages
PDF Download Download XA3200 Datasheet PDF

Features: XA3200 Low Noise, Regulated Charge Pump DC/DC Converter Features Fixed 5V ± 4 % Output VIN Range: 2.5V to 5V Output C urrent: Up to 250mA Constant Frequency Operation at All Loads Low Noise Consta nt Frequency (400kHz) Operation Automat ic Soft-Start Reduces Inrush Current Sh utdown Current <1µA Short-Circuit Prot ection No Inductors Available in Low Pr ofile 6-Lead SOT23 Package Application White LED Backlighting Li-Ion Battery B ackup Supplies Local 3V to 5V Conversio n Smart Card Readers PCMCIA Local 5V Su pplies Description The XA3200 is a low noise, constant frequency (400kHz) swi tched capacitor voltage doubler. It pro duce a regulated output voltage from a 2.5V to 4.5V input with up to 250mA of output current. Low external parts coun t (one flying capacitor and two small b ypass capacitors at VIN and VOUT) make the XA3200 ideally suited for small, ba ttery-powered applications. A new charg e-pump architecture maintains constant switching frequency to zero load and reduces both output and in.

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XA3200
Low Noise, Regulated Charge Pump DC/DC Converter
Features
Fixed 5V ± 4% Output
VIN Range: 2.5V to 5V
Output Current: Up to 250mA
Constant Frequency Operation at All Loads
Low Noise Constant Frequency (400kHz)
Operation
Automatic Soft-Start Reduces Inrush
Current
Shutdown Current <1µA
Short-Circuit Protection
No Inductors
Available in Low Profile 6-Lead SOT23
Package
Application
White LED Backlighting
Li-Ion Battery Backup Supplies
Local 3V to 5V Conversion
Smart Card Readers
PCMCIA Local 5V Supplies
Description
The XA3200 is a low noise, constant frequency
(400kHz) switched capacitor voltage doubler. It
produce a regulated output voltage from a 2.5V
to 4.5V input with up to 250mA of output current.
Low external parts count (one flying capacitor
and two small bypass capacitors at VIN and
VOUT) make the XA3200 ideally suited for
small, battery-powered applications.
A new charge-pump architecture maintains
constant switching frequency to zero load and
reduces both output and input ripple. The
XA3200 have thermal shutdown capability and
can survive a continuous short circuit from
VOUT to GND. Built-in soft-start circuitry
prevents excessive inrush current during
start-up.
High switching frequency enables the use of
small ceramic capacitors. A low current
shutdown feature disconnects the load from VIN
and reduces quiescent current to <1uA.
The XA3200 is available in the industry
standard SOT-23-6 power packages.
www.szxinna.com
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