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.