1 Features

1• Up to 97% Efficiency Synchronous Boost

• Up to 3.5-A IOUT for 3.3-V to 5-V Conversion

• 10-A 14-mΩ/14-mΩ Internal Power Switches

• Programmable Constant Output Current

• Output Current Monitor

• 10-μA IQ under Light Load Condition

• Boost Status Indication

• True disconnection during shutdown

• Fixed 5.1-V Output Voltage (TPS61235P) or

Adjustable Output Voltage from 2.9-V to-5.5 V

(TPS61236P)

• 1-MHz Switching Frequency

• Softstart, Current Limit, Over Voltage and Over

Thermal Protections

• 2.5 mm x 2.5 mm VQFN Package

2 Applications

• Power Banks, Battery Backup Units

• USB Charging Port

• USB Type-C

• Battery Powered USB Hub

• Tablet PCs

• Battery Powered Products

3 Description

The TPS6123x is a high current, high efficiency

synchronous boost converter with constant output

current feature for single cell Li-Ion and Li-polymer

battery powered products, in a wide range of power

bank, tablet, and other portable devices. The IC

integrates 14-mΩ/14-mΩ power switches and is

capable of delivering up to a 3.5-A output current for

3.3-V to 5-V conversion with up to 97% high

efficiency. The device supports a programmable

constant output current to control power delivery, so

to save power path components and lower total

system thermal dissipation effectively.

The device only consumes a 10-μA quiescent current

under a light load condition, and can report load

status to the system, which make it very suitable for

Always-On applications. With the TPS6123x, a simple

and flexible system design can be achieved,

eliminating external power path components, saving

PCB space, and reducing BOM cost.

In shutdown, the output is completely disconnected

from the input, and current consumption is reduced to

less than 1 μA. Other features like soft start control,

reverse current blocking, over voltage protection, and

thermal shutdown protection are built-in for system

safety.

The devices are available in a 2.5-mm x 2.5-mm

VQFN package.