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LT1765-3.3 - 1.25MHz Step-Down Switching Regulator

Download the LT1765-3.3 datasheet PDF. This datasheet also covers the LT1765 variant, as both devices belong to the same 1.25mhz step-down switching regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The LT®1765 is a 1.25MHz monolithic buck switching regulator.

A high efficiency 3A, 0.09Ω switch is included on the die together with all the control circuitry required to construct a high frequency, current mode switching regulator.

Key Features

  • n 3A Switch in a Thermally Enhanced 16-Lead TSSOP or 8-Lead SO Package n Constant 1.25MHz Switching Frequency n Wide Operating Voltage Range: 3V to 25V n High Efficiency 0.09Ω Switch n 1.2V Feedback Reference Voltage n Uses Low Profile Surface Mount Components n Low Shutdown Current: 15μA n Synchronizable to 2MHz n Current Mode Loop Control n Constant Maximum Switch Current Rating at All Duty Cycles.
  • n Available in 8-Lead SO and 16-Lead Thermally Enhanced TSSOP Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT1765-LinearTechnology.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1765-1.8 1.25MHz Step-Down Switching Regulator
LT1765-2.5 1.25MHz Step-Down Switching Regulator
LT1765-5 1.25MHz Step-Down Switching Regulator
LT1765 1.25MHz Step-Down Switching Regulator
LT1761 LDO Micropower Regulators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LT1765/LT1765-1.8/LT1765-2.5/ LT1765-3.3/LT1765-5 Monolithic 3A, 1.25MHz Step-Down Switching Regulator FEATURES n 3A Switch in a Thermally Enhanced 16-Lead TSSOP or 8-Lead SO Package n Constant 1.25MHz Switching Frequency n Wide Operating Voltage Range: 3V to 25V n High Efficiency 0.09Ω Switch n 1.2V Feedback Reference Voltage n Uses Low Profile Surface Mount Components n Low Shutdown Current: 15μA n Synchronizable to 2MHz n Current Mode Loop Control n Constant Maximum Switch Current Rating at All Duty Cycles* n Available in 8-Lead SO and 16-Lead Thermally Enhanced TSSOP Packages APPLICATIONS n DSL Modems n Portable Computers n Regulated Wall Adapters n Battery-Powered Systems n Distributed Power DESCRIPTION The LT®1765 is a 1.25MHz monolithic buck switching regulator.