Datasheet Texas Instruments TPS54326PWP — 数据表

TPS54326
www.ti.com SLVSA13E – OCTOBER 2009 – REVISED JUNE 2012 4.5V to 18V Input, 3-A Synchronous Step-Down Converter with Eco-mode™
Check for Samples: TPS54326 FEATURES DESCRIPTION The TPS54326 is an adaptive on-time D-CAP2в„ў
mode synchronous buck converter. The TPS54326
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
TPS54326 uses the D-CAP2в„ў mode control which
provides a fast transient response with no external
components. The adoptive on-time control supports
seamless operation between PWM mode at heavy
load condition and reduced frequency Eco-modeв„ў
operation at light load for high efficiency. 1 23 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 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) …