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TPS54525 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54525 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page U1 TPS54525 Slew Rate (0.35A/µsec) V (50 mV/div ac coupled) O I (2A/div) OUT Time Scale (100µsec/div) TPS54525 www.ti.com SLVSB82 – MAY 2012 4.5V to 18V Input, 5.5-A Synchronous Step-Down Converter Check for Samples: TPS54525 1 FEATURES DESCRIPTION The TPS54525 is an adaptive on-time D-CAP2™ 23 • D-CAP2™ Mode Enables Fast Transient mode synchronous buck converter. The TPS54525 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 TPS54525 uses the D-CAP2™ mode control which • Output Voltage Range: 0.76 V to 5.5 V provides a very fast transient response with no • Highly Efficient Integrated FET’s Optimized external compensation components. The TPS54525 for Lower Duty Cycle Applications also has a proprietary circuit that enables the device –63 m Ω (High Side) and 33 mΩ (Low Side) to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP- • High Efficiency, less than 10 μA at shutdown CAP, and ultra-low ESR ceramic capacitors. The • High Initial Bandgap Reference Accuracy device operates from 4.5-V to 18-V VIN input. The • Adjustable Soft Start output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable • Pre-Biased Soft Start soft start time and a power good function. The • 650-kHz Switching Frequency (fSW) TPS54525 is available in the 14-pin HTSSOP • Cycle By Cycle Over Current Limit package, and designed to operate from –40°C to 85°C. • Power Good Output 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, PowerPAD are trademarks 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 © 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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