1 Features

• 2.7-V to 12-V input voltage range

• 4.5-V to 12.6-V output voltage range

• 10-A switch current

• Up to 91% efficiency at VIN = 3.3 V, VOUT = 9 V,

and IOUT = 3 A

• Mode selection between PFM mode and forced

PWM mode at light load

• 1.0-μA current into the VIN pin during shutdown

• Resistor-programmable switch peak current limit

• Adjustable switching frequency: 200 kHz to 2.2

MHz

• Programmable soft start

• Output overvoltage protection at 13.2 V

• Cycle-by-cycle overcurrent protection

• Thermal shutdown

• 4.50-mm × 3.50-mm 20-pin VQFN package

• Create a custom design using the TPS61088 with

the WEBENCH Power Designer

2 Applications

• Portable POS terminal

• Bluetooth™ speaker

• E-cigarette

• Thunderbolt interface

• Quick charge power bank

3 Description

The TPS61088 is a high-power density, fullyintegrated

synchronous boost converter with a 11-mΩ

power switch and a 13-mΩ rectifier switch to provide

a high efficiency and small size solution in portable

systems. The TPS61088 has a wide input voltage

range from 2.7 V to 12 V to support applications with

single-cell or two-cell Lithium batteries. The device

has 10-A switch current capability and is capable of

providing an output voltage up to 12.6 V.

The TPS61088 uses adaptive constant off-time peak

current control topology to regulate the output voltage.

In moderate to heavy load condition, the TPS61088

works in pulse width modulation (PWM) mode. In

light load condition, the device has two operation

modes selected by the MODE pin. One is the pulse

frequency modulation (PFM) mode to improve the

efficiency and another one is forced PWM mode to

avoid application problems caused by low switching

frequency. The switching frequency in PWM mode is

adjustable, ranging from 200 kHz to 2.2 MHz by an

external resistor. The TPS61088 also implements a

programmable soft-start function and an adjustable

switching peak current limit function. In addition, the

device provides 13.2-V output overvoltage protection,

cycle-by-cycle overcurrent protection, and thermal

shutdown protection.

The TPS61088 is available in a 4.50-mm × 3.50-mm

20-pin VQFN package.