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.