LM2852 Datasheet, PDF (1/13 Pages) National Semiconductor (TI) – 2A 500/1500kHz SIMPLE SYNCHRONOUS Buck Regulator

January 2005
LM2852
2A 500/1500kHz SIMPLE SYNCHRONOUS^™ Buck
Regulator
General Description
The LM2852 SIMPLE SYNCHRONOUS™ buck regulator is
a high frequency step-down switching voltage regulator ca-
pable of driving up to a 2A load with excellent line and load
regulation. The LM2852 can accept an input voltage be-
tween 2.85V and 5.5V and deliver a customizable output
voltage that is factory programmable from 0.8V to 3.3V in
100mV increments. The LM2852 is available with a choice of
two switching frequencies - 500kHz (LM2852Y) or 1.5MHz
(LM2852X). It also features internal compensation to deliver
a low component count solution. The exposed-pad
TSSOP-14 package enhances the thermal performance of
the LM2852.
Features
n Input voltage range of 2.85 to 5.5V
n Factory EEPROM set output voltages from 0.8V to 3.3V
in 100mV increments
n Maximum Load Current of 2A
n Voltage Mode Control
n Internal type three compensation
n Switching frequency of 500kHz or 1.5MHz
n Low standby current of 10µA
n Internal 60 mΩ MOSFET switches
n Standard voltage options 1.0/1.2/1.5/1.8/2.5/3.3 volts
Applications
n Low voltage point of load regulators
n Local solution for FPGA/DSP/ASIC core power
n Broadband networking and communications
infrastructure
n Portable computing
Typical Application Circuit
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