Datasheet Texas Instruments TPS54325TPWPRQ1 — 数据表

TPS54325-Q1
SLVSAT1 – JUNE 2011 www.ti.com 4.5-V to 18-V, 3-A OUTPUT SYNCHRONOUS STEP DOWN SWITCHER
WITH INTEGRATED FET ( SWIFTв„ў)
Check for Samples: TPS54325-Q1 FEATURES 1 23 Qualified for Automotive Applications
D-CAP2в„ў Mode Enables Fast Transient
Response
Low Output Ripple and Allows Ceramic Output
Capacitor
Wide VCC Input Voltage Range: 4.5 V to 18 V
Wide VIN Input Voltage Range: 2.0 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
–120 mΩ (High Side) and 70 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 Wide Range of Applications for Low Voltage
System
– Digital TV Power Supply
– High Definition Blue-ray Discв„ў Players …