1FEATURES

· High-Efficiency Synchronous Step-Down

Converter With Greater Than 95% Efficiency

· 2 V to 5.5 V Operating Input Voltage Range

· Adjustable Output Voltage Range From 0.8 V

to VI · Synchronizable to External Clock Signal up to

1 MHz

· Up to 300 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-mA Quiescent Current (TYP)

· Evaluation Module Available for Commercial

Temperature Range

APPLICATIONS

· Down-Hole Drilling

· High Temperature Environments

SUPPORTS EXTREME TEMPERATURE

APPLICATIONS

· Controlled Baseline

· One Assembly/Test Site

· One Fabrication Site

· Available in Extreme (–55°C/210°C) Temperature Range(1)

· Extended Product Life Cycle

· Extended Product-Change Notification

· Product Traceability

· Texas Instruments high temperature products

utilize highly optimized silicon (die) solutions

with design and process enhancements to

maximize performance over extended

temperatures.

DESCRIPTION

The TPS62000 device 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 TPS62000

operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.