TL783 125V Voltage Adjustable Regulator

Description

The TL783 is a specialized high-voltage adjustable regulator designed for projects where standard linear regulators like the LM317 simply can't keep up. Combining advanced DMOS technology with standard bipolar circuitry, this IC can handle an impressive input-to-output differential of up to 125V. Whether you are building a custom lab power supply, a tube amplifier bias circuit, or a high-voltage battery charger, the TL783 provides a rock-solid output of up to 700mA. Its unique design eliminates the common "thermal runaway" and "secondary breakdown" issues found in older bipolar regulators, making it a reliable and robust choice for hobbyists working with demanding power requirements.

FEATURES

• Wide Voltage Range: Fully adjustable output from a low 1.25V all the way up to 125V.

• High Current Capability: Capable of sourcing more than 700mA, perfect for medium-power applications.

• Built-in Protection: Features full short-circuit protection, Safe-Operating-Area (SOA) protection, and thermal shutdown to prevent accidental damage.

• Superior Regulation: Extremely stable performance with a typical input voltage regulation of 0.001%/V and 76-dB ripple rejection.

• Simple Setup: Requires only two external resistors to program your desired output voltage.

• Robust DMOS Output: Utilizes state-of-the-art MOS transistors to withstand high voltages that would destroy standard regulators.

Applications

• Lab Power Supplies: Build your own variable high-voltage bench supply for testing.

• Audio Equipment: Ideal for tube (valve) amplifier biasing and high-voltage preamp stages.

• Industrial Controls: Useful for electronic point-of-sale systems and printer power blocks.

• LED Drivers: Precise current and voltage control for high-voltage LED strings.

• Medical & Fitness Gear: Powering specialized health and fitness electronics.

Parameters

• Output Voltage Range: 1.25V to 125V DC

• Input-to-Output Differential: Max 125V

• Output Current: 700mA (Max)

• Reference Voltage (Vref): 1.27V (Typical)

• Ripple Rejection: 76 dB

• Operating Temperature Range: 0°C to 125°C

• Package Type: TO-220 (Standard 3-pin through-hole for easy breadboarding and heat-sinking)