BL8529
3A 1.5MHz 5.5V Synchronous Buck Converter
DESCRIPTION
The BL8529 is a high efficiency synchronous, buck
DC/DC converter. Its input voltage range is from
2.6V to 6V and provides an adjustable regulated
output voltage from 0.8V to 5.5V while delivering
up to 3A of output current.
The internal synchronous switches increase
efficiency and eliminate the need for an external
Schottky diode. The switching frequency is set by
an external resistor or can be synchronized to an
external clock. The 100% duty cycle provides low
dropout operation extending battery life in
portable systems.
The BL8529 is operated in PFM/PWM auto-switch
mode which enhance the efficiency at light-load.
The BL8529 is available in the DFN2x2-8L and
DFN3x3-10L package
FEATURES
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Adjustable Output Voltage, Vfb=0.8V
Maximum output current is 3A
Range of operation input voltage: Max 6V
Standby current: 0.5mA (typ.)
Line regulation: 0.1%/V (typ.)
Load regulation: 10mV (typ.)
High efficiency, up to 96%
Environment Temperature: -20°C~85°C
APPLICATIONS
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Power Management for 3G modem
3W LED driver from Li-ion battery
LCD Monitor and LCD TV
DVD Decode Board
ADSL Modem
Post Regulators for Switching Supplies
TYPICAL APPLICATION
PIN OUT & MARKING
EN
COMP
BL8529
BL852
GND
F
L
DD
PGND
P DD
DFN2x2-8L
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