1 Features

• AEC-Q100 qualified:

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

ambient operating temperature range

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• Input voltage range: 0.5V to 5.5V

• 0.7V minimum input voltage for start-up

• Input operating voltage down to 150mV with signal

VIN > 0.7V

• Output voltage range: 1.8V to 5.5V VSEL pin

select output voltage

• Average input current limit: 1.2A

• 95nA typical quiescent current from VOUT

• 60nA typical shutdown current from VIN and SW

• Up to 91 efficiency at VIN = 3.6V, VOUT = 5V, and

IOUT = 10μA

• Up to 94 efficiency at VIN = 3.6V, VOUT = 5V, and

IOUT = 200mA

• True disconnection at EN low

• Automatic PFM/PWM mode transition

• Auto pass-through at VIN > VOUT

• Output SCP and thermal shutdown protections

• SOT563 package (1.6mm x 1.6mm)

2 Applications

• Automotive infotainment and cluster

• Automotive rear lighting

• Advanced driver-assistance system (ADAS)

3 Description

The TPS61299-Q1 is a synchronous boost converter

with 95nA ultra-low quiescent current and average

input current limit. The device provides a power

solution for portable equipment with alkaline battery

and coin cell battery. This device operates at high

efficiency under light-load condition to achieve long

operation time and average input current limit can

avoid battery discharging with high current.

The TPS61299-Q1 has wide input voltage range from

0.5V to 5.5V and output voltage range from 1.8V to

5.5V. The average input current limit of this device is

1.2A. The TPS61299-Q1 with 1.2A current limit can

support up to 500mA output current from 3V to 5V

conversion and achieve approximately 94 efficiency

at 200mA load.

The TPS61299-Q1 has optional fast-load transient

performance at output voltage is 4.5V, 5V, or 5.5V.

The TPS61299-Q1 supports true shutdown function

when it is disabled.

TThe TPS61299-Q1 offers a very small solution size

with 1.6mm × 1.6mm SOT563 package.