TPS74801-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

• VOUT range: 0.8V to 3.6V

• Ultra-low VIN range: 0.8V to 5.5V

• VBIAS range 2.7V to 5.5V

• Low dropout: 60mV typ at 1.5A, VBIAS = 5V

• Power-good (PG) output allows supply monitoring

or provides a sequencing signal for other supplies

• 2% accuracy over line, load, and temperature

• Programmable soft-start provides linear voltage

start-up

• VBIAS permits low VIN operation with good transient

response

• Stable with any output capacitor ≥ 2.2μF

• Available in small 3mm × 3mm × 1mm VSON-10

and 5mm × 5mm VQFN-20 packages

2 Applications

• Telematic control units

• Infotainment and clusters

• Automotive head units

• Medium-, short-range radar

3 Description

The TPS74801-Q1 low-dropout (LDO) linear regulator

provides an easy-to-use robust power management

solution for a wide variety of applications. Userprogrammable

soft-start minimizes stress on the input

power source by reducing capacitive inrush current

on start-up. The soft-start is monotonic and designed

for powering many different types of processors and

ASICs. The enable input and power-good output

allow easy sequencing with external regulators. This

complete flexibility allows a solution to be configured

that meets the sequencing requirements of FPGAs,

DSPs, and other applications with special start-up

requirements.

A precision reference and error amplifier delivers 2%

accuracy over load, line, temperature, and process.

The device is stable with any type of output capacitor

greater than or equal to 2.2μF, and is fully specified

for TJ = –40°C to +150°C for the new chip, TJ = –40°C

to +105°C for the DRC package, and TJ = –40°C to

+125°C for the RGW package. The TPS74801-Q1 is

offered in a small 3mm × 3mm VSON-10 package,

yielding a highly compact, total solution size. The

device is also available in a 5mm × 5mm VQFN-20.