L6730C Datasheet, PDF (1/50 Pages) STMicroelectronics – Adjustable step-down controller with synchronous rectification

L6730C
L6730D
Adjustable step-down controller with synchronous rectification
Features
Target Specification
■ Input voltage range from 1.8V to 14V
■ Supply voltage range from 4.5V to 14V
■ Adjustable output voltage down to 0.6V with
±0.8% accuracy over line voltage and
temperature (0°C~125°C)
■ Fixed frequency voltage mode control
■ T_ON lower than 100ns
■ 0% to 100% duty cycle
■ Selectable 0.6V or 1.2V internal voltage
reference
■ External input voltage reference
■ Soft-start and inhibit
■ High current embedded drivers
■ Predictive anti-crossconduction control
■ Selectable UVLO threshold (5V or 12V bus)
■ Programmable high-side and low-side R_DS(on)
sense over-current-protection
■ Switching frequency programmable from
100KHz to 1MHz
■ Master/slave synchronization with 180° phase
shift
■ Pre-bias start up capability (L6730C)
■ Selectable source/sink or source only
capability after soft-start (L6730C)
■ Selectable constant current or hiccup mode
overcurrent protection after soft-start (L6730D)
HTSSOP20
QFN 4x4 24L
■ Power good output with programmable delay
■ Over voltage protection with selectable
latched/not-latched mode
■ Thermal shut-down
■ Package: HTSSOP20, QFN4x4 24L
Applications
■ High performance / high density DC-DC
modules
■ Low voltage distributed DC-DC
■ niPOL converters
■ DDR memory supply
■ DDR memory bus termination supply
Order Codes
Part number
Package
Packing
L6730CQ
QFN4x4 24L
Tube
L6730CQTR
QFN4x4 24L
Tape & Reel
L6730C
HTSSOP20
Tube
L6730CTR
HTSSOP20
Tape & Reel
L6730D
HTSSOP20
Tube
L6730DTR
HTSSOP20
Tape & Reel
June 2006
Rev 2
1/50
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
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