L5988 Datasheet, PDF (1/10 Pages) STMicroelectronics – 4A step-down switching regulator with synchronous rectification

Features
■ 4A DC output current
■ 2.9V to 18V input voltage
■ Output voltage adjustable from 0.6V
■ 400KHz switching frequency, programmable
up to 1MHz
■ Soft-start and inhibit
■ 1.8V ± 2% reference voltage
■ Low dropout operation: 100% duty cycle
■ Voltage feed-forward
■ Zero load current operation
■ Sink current capability
■ Over current, over voltage and thermal
protection
■ HTSSOP16 package
Application circuit
L5988
4A step-down switching regulator
with synchronous rectification
Preliminary Data
HTSSOP16
Applications
■ Consumer:
– STB, DVD, DVD recorder, TV, VCR, Car
audio, LCD monitors
■ Networking:
– XDSL, Modems, DC-DC modules
■ Computer:
– Optical storage, Hard disk drive, Printers,
Audio/Graphic cards
■ Industrial:
– Chargers, car battery, DC-DC converters
Order codes
Part Number
Package
Packaging
L5988D
HTSSOP16
Tube
L5988DTR
HTSSOP16
Tape and reel
August 2006
Rev 3
1/10
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without noticwew. w.st.com
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