TPS54302, TPS54308

3-V to 28-V Input, 3-A Synchronous Buck Converters

With Eco-mode™

1 Features

• Integrated 70-mΩ and 38-mΩ MOSFETs
• Supports up to 3-A continuous output current
• D-CAP3™ control mode
• Fast transient response
• Output voltage accuracy ±1% (25°C to 125°C)
• Adjustable output voltage from 0.76 V to 5.5 V
• Wide input voltage range: 3 V to 28 V
• Low shutdown current: 2 µA
• Fixed 600-kHz switching frequency (TPS54302)
• Adjustable switching frequency from 200 kHz to 1 MHz (TPS54308)
• Cycle-by-cycle overcurrent limit
• Hiccup mode short-circuit protection
• Overtemperature protection
• Power-good function
• Small 8-pin HSOIC package

2 Applications

• Consumer applications: DTV, STB, CPE, LCD monitors
• Industrial and commercial applications
• Point-of-load power supplies

3 Description

The TPS54302 and TPS54308 are synchronous buck converters with integrated 70-mΩ and 38-mΩ MOSFETs. They are capable of delivering up to 3-A continuous output current from a 3-V to 28-V input supply. The devices implement a D-CAP3™ control mode to provide a fast transient response. The TPS54302 operates in a fixed 600-kHz switching frequency. The TPS54308 switching frequency is adjustable from 200 kHz to 1 MHz. The TPS54302 and TPS54308 are available in an 8-pin HSOIC package.

Part 1: Markdown Summary

Part: TPS54302, TPS54308

Type: Synchronous Buck Converter

Key Specs:

• Input voltage range: 3 V to 28 V
• Continuous output current: up to 3 A
• Integrated MOSFETs: 70 mΩ and 38 mΩ
• Output voltage accuracy: ±1% (25°C to 125°C)
• Adjustable output voltage: 0.76 V to 5.5 V
• Low shutdown current: 2 µA
• Fixed switching frequency (TPS54302): 600 kHz
• Adjustable switching frequency (TPS5430