1 Features

1• Qualified for automotive applications

• AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to 125°C

ambient operating temperature range

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

• Input voltage: 2.7 V to 6.5 V

• 500-mA low-dropout regulator with EN

• Low IQ: 46 μA

• Multiple output voltage versions available:

– Fixed outputs of 1 V to 4.3 V

– Adjustable outputs from 1.25 V to 6 V

• High PSRR: 68 dB at 1 kHz

• Low noise: 13.2 μVRMS

• Fast startup time: 45 μs

• Stable with a low-ESR, 2-μF output capacitor

• Excellent load and line transient response

• 2% overall accuracy

(load, line, temperature, VOUT > 2.2 V)

• Low dropout: 280 mV at 500 mA

• 3-mm × 3-mm VSON-8 packages

2 Applications

• Automotive infotainment

• Navigation systems

• WiFi, WiMax modules

• Telematics systems

• Microprocessor power

3 Description

The TPS735-Q1 family of low-dropout (LDO), lowpower

linear regulators offers excellent ac

performance with very low ground current. High

power-supply rejection ratio (PSRR), low noise, fast

start-up, and excellent line and load transient

responses are provided while consuming a very low

46 μA (typical) ground current.

The TPS735-Q1 family of devices is stable with

ceramic capacitors and uses an advanced BiCMOS

fabrication process to yield a typical dropout voltage

of 280 mV at 500-mA output. The TPS735-Q1 family

of devices uses a precision voltage reference and

feedback loop to achieve overall accuracy of 2%

(VOUT > 2.2 V) over all load, line, process, and

temperature variations. This family of devices is fully

specified from TA = –40°C to 125°C and is offered in

a low-profile, 3-mm × 3-mm VSON package.