Datasheet Texas Instruments TPS54229DDAR — 数据表

TPS54229
SLVSAZ8A – SEPTEMBER 2011 – REVISED MARCH 2012 www.ti.com 4.5V to 18V INPUT, 2-A SYNCHRONOUS STEP DOWN CONVERTER WITH INTEGRATED
FET
Check for Samples: TPS54229 FEATURES DESCRIPTION 1 23 D-CAP2в„ў Mode Enables Fast Transient
Response
Low Output Ripple and Allows Ceramic Output
Capacitor
Wide VIN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7.0 V
Highly Efficient Integrated FETs Optimized
for Lower Duty Cycle Applications
– 160 mΩ (High Side) and 110 mΩ (Low Side)
High Efficiency, Less Than 10 ОјA at Shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
650-kHz Switching Frequency (fSW)
Cycle By Cycle Over Current Limit The TPS54229 is an adaptive on-time D-CAP2в„ў
mode synchronous buck converter. TheTPS54229
enables system designers to complete the suite of
various end equipment’s power bus regulators with a
cost effective, low component count, low standby
current solution. The main control loop for the …