Adjustable Negative Voltage Regulator, -50V to -4.2V In, 1.5A Out, SOT-223-4

This TEXAS INSTRUMENTS Adjustable Negative Voltage Regulator is a 3-terminal device capable of supplying in excess of 1.5A over an output voltage range of -1.25V to -37V. Designed for ease of application, it requires only two external resistors to set the output voltage and a single output capacitor for frequency compensation, simplifying circuit design and implementation.

The internal circuit design has been optimised for excellent regulation and low thermal transients. It features built-in current limiting, thermal shutdown, and safe-area compensation, providing robust protection against overloads and ensuring the output is short-circuit protected.

Key Performance Specifications

• Line Regulation: 0.01%/V
• Load Regulation: 0.3%
• Thermal Regulation: 0.002%/W
• Ripple Rejection: 77dB
• Temperature Coefficient: 50ppm/°C

The regulator operates within a wide temperature range of -40°C to 125°C and comes in a standard SOT-223-4 surface mount package with 4 pins. It is classified as a green product, containing no antimony (Sb) or bromine (Br). With physical dimensions of 43 mm in height, 33 mm in width, and 15 mm in depth, and a lightweight profile of just 0.432 grams, it is highly suited for compact and dense circuit board layouts.