Datasheet Texas Instruments TPS54429PWP — 数据表

TPS54429
SLVSAS1 – FEBRUARY 2011 www.ti.com 7V to 18V Input, 4.5-A Synchronous Step-Down ( SWIFT™) Converter
Check for Samples: TPS54429 FEATURES 1 23 D-CAP2в„ў Mode Enables Fast Transient
Response
Low Output Ripple and Allows Ceramic Output
Capacitor
Wide VIN Input Voltage Range: 7 V to 18 V
Output Voltage Range: 0.76 V to 5.5 V
Highly Efficient Integrated FET’s Optimized
for Lower Duty Cycle Applications
– 63 mΩ (High Side) and 55 mΩ (Low Side)
High Efficiency, less than 10 ОјA at shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
700-kHz Switching Frequency (fSW)
Cycle By Cycle Over Current Limit
Power Good Output APPLICATIONS DESCRIPTION
The TPS54429 is an adaptive on-time D-CAP2в„ў
mode synchronous buck converter. The TPS54429
enables system designers to complete the suite of
various end equipment’s power bus regulators with a
cost effective, low component count, low standby …