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TPS54339

Texas Instruments
Part Number TPS54339
Manufacturer Texas Instruments
Description 3-A Synchronous Step-Down Converter
Published Apr 3, 2021
Detailed Description TPS54339 www.ti.com SLVSBT2 – JANUARY 2013 4.5 V to 23 V Input, 3-A Synchronous Step-Down SWIFT™ Converter Check for ...
Datasheet PDF File TPS54339 PDF File

TPS54339
TPS54339

Overview
TPS54339 www.
ti.
com SLVSBT2 – JANUARY 2013 4.
5 V to 23 V Input, 3-A Synchronous Step-Down SWIFT™ Converter Check for Samples: TPS54339 FEATURES 1 •23 D-CAP2™ Mode Enables Fast Transient Response • Low Output Ripple and Allows Ceramic Output Capacitor • Wide VIN Input Voltage Range: 4.
5 V to 23 V • Output Voltage Range: 0.
76 V to 7 V • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications – 140 mΩ (High Side) and 70 mΩ (Low Side) • High Efficiency, less than 10 μA at shutdown • High Initial Bandgap Reference Accuracy • Adjustable Soft Start • Pre-Biased Soft Start • 600-kHz Switching Frequency (fSW) • Cycle By Cycle Over Current Limit DESCRIPTION The TPS54339 is an adaptive on-time D-CAP2™ mode synchronous buck converter.
The TPS54339 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution.
The main control loop for the TPS54339 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components.
The TPS54339 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultralow ESR ceramic capacitors.
The device operates from 4.
5-V to 23-V VIN input.
The output voltage can be programmed between 0.
76 V and 7 V.
The device also features an adjustable soft start time.
The TPS54339 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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) VIN VOUT TPS54339DDA 1 VBST 8 SS 2 7 VIN EN EN 3 6 SW VREG5 4 GND 5 VFB PwPd 9 VOUT Vout (50 mV/div) Iout (2 A/div) 100 us/div 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical ...


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