1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C ≤ TA ≤ +125°C

– HBM ESD classification level 2

– CDM ESD classification level C4A

• Extended junction temperature (TJ) range:

– –40°C to +150°C

• Input voltage range:

– IN: VIN + VDO to 6.0 V

– BIAS: VOUT + VDO(BIAS) to 6.0 V

• Low dropout: 130 mV at 3 A

• Output voltage noise: 5.6 μVRMS

• Accuracy over line, load, and temperature:

– 1.3 (max)

• Power-supply ripple rejection:

– 40 dB at 500 kHz

• Adjustable soft-start inrush control

• Open-drain power-good (PG) output

• Package:

– 4-mm × 4-mm, 20-pin WQFN with wettable

flanks and high CTE (12 ppm/°C) mold

compound

2 Applications

• Telematic control units

• Infotainment and clusters

• Imaging radar

3 Description

The TPS7A53A-Q1 is a low-noise (5.6 μVRMS), lowdropout

linear regulator (LDO) capable of sourcing

3 A with only 130 mV of dropout.

The combination of low noise (5.6 μVRMS), high

PSRR, and high output current capability makes the

TPS7A53A-Q1 designed for powering noise-sensitive

components, such as those found in radar power

and infotainment applications. The high performance

of this device limits power-supply-generated phase

noise and clock jitter, making this device useful for

powering RF amplifiers, radar sensors, and chipsets.

Specifically, signal chain components benefit from the

high-performance of the device. The TPS7A53A-Q1

is available with a wettable flanks option to facilitate

optical inspection.

For digital loads [such as application-specific

integrated circuits (ASICs), field-programmable gate

arrays (FPGAs), and digital signal processors (DSPs)]

that require low-input, low-output (LILO) voltage

operation, the exceptional accuracy (1.3 over load

and temperature), remote sensing, excellent transient

performance, and soft-start capabilities of the

TPS7A53A-Q1 provide optimal system performance.

The versatility of the TPS7A53A-Q1 makes the

device a component of choice for many demanding

applications.