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Texas Instruments TLV761 Linear Voltage Regulator

Texas Instruments TLV761 Linear Voltage Regulator improves the functionality of a traditional x1117 regulator (TLV1117 or LM1117) with tighter output accuracy and low quiescent current (I_Q) to lower the standby power consumption. The TLV761 is pin-to-pin compatible with other fixed SOT-223 regulators. The TLV761 input voltage range is from 2.5V to 16V and provides an output voltage range from 0.8V to 13V to support various applications.

The wide bandwidth PSRR performance of the TLV761 is typically greater than 60dB at 1kHz and 40dB at 1MHz, which helps attenuate the switching frequency of an upstream DC/DC converter and minimizes post-regulator filtering. Additionally, the TLV761 has an internal soft start feature to reduce inrush current during start-up, which can help save space and cost in a design by minimizing input capacitance. The Texas Instruments TLV761 features a foldback current limit that limits the device’s power dissipation during high-load current faults or shorting events.

Features

Pin-compatible with industry-standard LM1117 and TLV1117 (x1117) devices in select packages
2.5V to 16V input voltage range V_IN
Output voltage range V_OUT
- 0.8V to 13V (fixed, 100mV steps)
Output current up to 1A
Low quiescent current I_Q
- 60µA (typical, ~1.5µA in shutdown)

1% output accuracy over line, load, and temperature
High PSRR (60dB at 1kHz, 40dB at 1MHz)
500µs (typical) internal soft-start time
Foldback current limiting and thermal protection
Stable with 1µF ceramic output capacitors
–40°C to +125°C temperature range
4-pin, 6.50mm × 3.50mm SOT-223 package

Applications

Home theater and entertainment
Motor drives

HVAC and building security systems
Smart meters

Texas Instruments TLV761 Linear Voltage Regulator

Features

Applications

Functional Block Diagram

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