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TPS54329 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54329 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page TPS54329DDA V (50 mV/div) OUT I (1 A/div) OUT 100 s/div μ G006 TPS54329 www.ti.com SLVSAZ6A – SEPTEMBER 2011 – REVISED MARCH 2012 4.5V to 18V Input, 3-A SYNCHRONOUS STEP DOWN CONVERTER Check for Samples: TPS54329 1 FEATURES DESCRIPTION The TPS54329 is an adaptive on-time D-CAP2™ 23 • D-CAP2™ Mode Enables Fast Transient mode synchronous buck converter. TheTPS54329 Response enables system designers to complete the suite of • Low Output Ripple and Allows Ceramic Output various end equipment’s power bus regulators with a Capacitor cost effective, low component count, low standby current solution. The main control loop for the • Wide VIN Input Voltage Range: 4.5 V to 18 V TPS54329 uses the D-CAP2™ mode control which • Output Voltage Range: 0.76 V to 7.0 V provides a fast transient response with no external • Highly Efficient Integrated FETs Optimized compensation components. The TPS54329 also has for Lower Duty Cycle Applications a proprietary circuit that enables the device to adopt – 100 m Ω (High Side) and 74 mΩ (Low Side) to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra- • High Efficiency, Less Than 10 μA at Shutdown low ESR ceramic capacitors. The device operates • High Initial Bandgap Reference Accuracy from 4.5-V to 18-V VIN input. The output voltage can • Adjustable Soft Start be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The • Pre-Biased Soft Start TPS54329 is available in the 8-pin DDA package, • 650-kHz Switching Frequency (fSW) and designed to operate from –40°C to 85°C. • Cycle By Cycle Over Current Limit APPLICATIONS • Wide Range of Applications for Low Voltage System – Digital TV Power Supply – High Definition Blu-ray Disc™ Players – Networking Home Terminal – Digital Set Top Box (STB) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 D-CAP2 is a trademark of Texas Instruments. 3 Blu-ray Disc is a trademark of Blu-ray Disc Association. PRODUCTION DATA information is current as of publication date. Copyright © 2011–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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