LM2596T-ADJ IC TO-220-5 ADJUSTABLE REGULATOR LM2596

Product Overview

A monolithic step-down switching regulator integrated circuit designed to provide efficient voltage conversion and drive up to a 3-A load with excellent line and load regulation. Operating at a fixed internal switching frequency of 150 kHz, the device significantly reduces the physical size of external filtering components, making it optimal for appliances, grid infrastructure, electronic point-of-sale terminals, and home theater environments. The series provides multiple configurations with fixed output voltages of 3.3V, 5V, and 12V, alongside a fully adjustable option capable of tuning the output voltage down to 1.2V. Integrated safety attributes include overtemperature thermal shutdown, cycle-by-cycle current limiting, and a logic-driven shutdown feature that reduces total operating power to a minimal standby state.

Core Specifications

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  Manufacturer: Texas Instruments

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  Package Type: 5-pin TO-220 (through-hole) and 5-pin TO-263 (surface-mount)

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  Function: 150-kHz 3-A Step-Down Buck Voltage Regulator (LM2596 Series)

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  Input Voltage: Wide operating input supply voltage range from 4.5V up to 40V

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  Control Interface: Hardware-defined logic interface utilizing a dedicated feedback loop to continuously sense regulated output voltage and a transistor-transistor logic (TTL) shutdown input pin to switch the regulator into a low-current standby mode.