LM2716中文资料Dual (Step-up and Step-down) PWM DC/DC Converter数据手册TI规格书

描述 Description

General Description
The LM2716 is composed of two PWM DC/DC converters. A buck (step-down) converter is used to generate a fixed output voltage. A boost (step-up) converter is used to generate an adjustable output voltage. Both converters feature low RDSON (0.16Ω and 0.12Ω) internal switches for maximum efficiency. Operating frequency can be adjusted anywhere between 300kHz and 600kHz allowing the use of small external components. External soft-start pins for each enables the user to tailor the soft-start times to a specific application. Each converter may also be shut down independently with its own shutdown pin. The LM2716 is available in a low profile 24-lead TSSOP package.

特性 Features

■ Fixed buck converter with a 1.8A, 0.16Ω, internal switch
■ Adjustable boost converter with a 3.6A, 0.12Ω, internal switch
■ Adjustable boost output voltage up to 20V
■ Operating input voltage range of 4V to 20V
■ Input undervoltage protection
■ 300kHz to 600kHz pin adjustable operating frequency
■ Over temperature protection
■ Small 24-Lead TSSOP package
■ Patented current limit circuitryApplications
■ TFT-LCD Displays
■ Handheld Devices
■ Portable Applications
■ Cellular Phones/Digital Camers

应用 Application

■ TFT-LCD Displays
■ Handheld Devices
■ Portable Applications
■ Cellular Phones/Digital Camers