ADI LT3582EUD-12#PBF

升压升压，降压升压2.55V5.5V285mA（开关），490mA（开关）

Overview

The LT3582/LT3582-5/LT3582-12 are dual DC/DC converters featuring positive and negative outputs and integrated feedback resistors. The LT3582, with its built-in One Time Programming (OTP), has configurable output settings via the I2C interface, including output voltage settings, power-up sequencing, power-down discharge, and output voltage ramp rates. LT3582EUD-12 settings can be changed adaptively in the final product, or set during manufacturing and made permanent using the built in non-volatile OTP memory. The positive output voltage can be set between 3.2V and 12.775V in 25mV steps. The negative output voltage can be set between –1.2V and –13.95V in –50mV steps. The LT3582-5 and LT3582-12 are pre-configured at the factory for ±5V and ±12V outputs respectively, and as such, don’t require the use of the I2C interface.

The LT3582EUD-12 series includes two monolithic converters, one Boost and one Inverting. The Boost converter has an integrated power switch and output disconnect switch. The Inverting converter uses a single inductor topology and includes an integrated power switch. Both Boost and Inverting converters use a novel** control scheme resulting in low output voltage ripple while allowing for high conversion efficiency over a wide load current range. The LT3582EUD-12 series is available in a 16-pin 3mm × 3mm QFN.

Features

• Small package

• Internal switch

• High output voltage

• Temperature range

• Low shutdown current

• Wide input voltage range

• Adjustable output voltage

• Overvoltage and overcurrent protection

Applications

• LED lighting

• Audio amplifiers

• Power management

• Automotive electronics

• Battery-powered devices

• Industrial control systems