TPS62007 概述

The TPS62007 is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS62007 operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS62007 is a synchronous current-mode PWM converter with integrated — and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count.

TPS62007 特性

• High-Efficiency Synchronous Step-Down Converter With Greater Than 95% Efficiency
• 2 V to 5.5 V Operating Input Voltage Range
• Fixed Output Voltage of 3.3 V
• Synchronizable to External Clock Signal up to 1 MHz
• Up to 600 mA Output Current
• Pin-Programmable Current Limit
• High Efficiency Over a Wide Load Current Range in Power Save Mode
• 100% Maximum Duty Cycle for Lowest Dropout
• Low-Noise Operation Antiringing Switch and PFM/PWM Operation Mode
• Internal Softstart
• 50-µA Quiescent Current (TYP)
• Available in the 10-Pin Microsmall Outline Package (MSOP)

TPS62007 应用

• Low-Power CPUs and DSPs
• Cellular Phones
• Organizers, PDAs, and Handheld PCs
• MP-3 Portable Audio Players
• Digital Cameras