1 Features
• Input voltage range: 0.5V to 5.5V
• 0.7V minimum start-up voltage for TPS61299x
• 0.9V minimum start-up voltage for TPS61299xA
• Input operating voltage down to 150mV with signal
VIN > 0.7V for TPS61299x
• Input operating voltage down to 150mV with signal
VIN > 0.9V for TPS61299xA
• Output voltage range: 1.8V to 5.5V for device with
current limit no more than 1.2A
• Output voltage range: 1.8V to 5V for TPS612997/A
• Average input current limit: 5mA; 25mA; 50mA;
100mA; 250mA, 500mA, 1.2A, 1.9A
(different versions)
• 95nA typical quiescent current into VOUT
• 60nA typical shutdown current into VIN for
TPS61299x
• 30nA typical force pass through current into VIN
for TPS61299xA
• 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
• Fast transient performance: setting time ~8μs at
VIN = 3.6V, VOUT = 5V, IOUT = 0A -> 200mA
• True disconnection at EN low for TPS61299x
• Force pass through at EN low for TPS61299xA
• Automatic PFM/PWM mode transition
• Auto pass-through at VIN > VOUT
• Output SCP and thermal shutdown protections
• 6-Pin WCSP (1.2mm x 0.8mm) / SOT563 package
(1.6mm x 1.6mm)
• Module solution (inductor integrated) TPSM81299

2 Applications
• Smart watch, Smart band
• Portable medical equipment
• TWS
• Optical module

3 Description
The TPS61299x/xA 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 has high efficiency
under light-load condition to achieve long operation
time and average input current limit can avoid battery
discharging with high current.
The TPS61299x/xA has wide input voltage range from
0.5V to 5.5V and output voltage range from 1.8V to
5.5V. The device has different versions for average
input current limit from 5mA to 1.9A. The TPS61299
with 1.2A current limit can support up to 500mA
output current from 3V input to 5V output conversion
and achieve approximately 94% efficiency at 200mA
load.
The TPS61299x/xA has optional fast-load transient
performance at output voltage is 4.5V, 5V or 5.5V. In
fast-load transient, the typical setting time is 8μs when
output current transient from 0A to 200mA.
The TPS61299x supports true shutdown function
when it is disabled. And TPS61299xA supports force
pass through function when it is disabled. Customer
could choose either one for specific application.
The TPS61299x/xA offers a very small solution size
with 6-ball 1.2mm x 0.8mm WCSP package and 6-pin
1.6mm x 1.6mm SOT563 package.