TLV761_V02中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? Pin-compatible with industry-standard LM1117 and

TLV1117 (x1117) devices in select packages

? Input voltage range VIN: 2.5 V to 16 V

? Output voltage range VOUT:

– 0.8 V to 13 V (fixed, 100-mV steps)

? Output current: Up to 1 A

? Low quiescent current IQ:

– 60 μA (typical, ~1.5 μA in shutdown)

? 1 output accuracy over line, load and

temperature

? High PSRR: 60 dB at 1 kHz, 40 dB at 1 MHz

? Internal soft-start time: 500 μs (typical)

? Foldback current limiting and thermal protection

? Stable with 1-μF ceramic output capacitors

? Temperature range: –40°C to +125°C

? Package: 4-pin, 6.50-mm × 3.50-mm SOT-223

2 Applications

? Appliances

? Home theater and entertainment

? Motor drives

? HVAC and building security systems

? Smart meters

3 Description

The TLV761 is a linear voltage regulator that improves

the functionality of a traditional x1117 regulator

(TLV1117 or LM1117) with tighter output accuracy and

low quiescent current (IQ) 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 2.5 V to 16 V

and provides an output voltage range from 0.8 V to

13 V to support a wide variety of applications.

The wide bandwidth PSRR performance of the

TLV761 is typically greater than 60 dB at 1 kHz

and 40 dB at 1 MHz, 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 TLV761 features a

foldback current limit that limits the power dissipation

of the device during high-load current faults or

shorting events.