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1 Features

1? Input Voltage Range: 2.7 V to 20 V

? Output Voltage Range: 4.5 V to 20 V

? Programmable Switch Peak Current: up to 10 A

? Two 16-mΩ FETs Integrated

? Efficiency up to 96%: VIN = 7.2 V, VOUT = 16 V,

IOUT = 2 A

? Adjustable Switching Frequency: up to 2.2 MHz

? External Clock Synchronization:

200 kHz to 2.2 MHz

? Gate Driver for Load Disconnect

? Hiccup Short Protection

? Over Voltage Protection

? Auto PFM Operation - TPS61178

? Forced PWM Mode - TPS611781

? 3.0-mm x 3.5-mm 13-pin VQFN Hotrod Package

? Create a Custom Design Using the TPS61178

With the WEBENCH? Power Designer

2 Applications

? Portable Speaker

? Source Driver of LCD Display

? Supply for the Power Amplifier

? Supply for the Motor Driver

? USB Type-C Power Delivery

3 Description

The TPS61178x family is a 20-V synchronous Boost

converter with the gate driver built-in for load

disconnect. The TPS61178x integrates two low onresistance

power FETs: A 16-mΩ switching FET and

a 16-mΩ rectifier FET.

The TPS61178x uses the fixed frequency peak

current mode control with the slope compensation

integrated. At the light load, the TPS61178 enters into

the auto PFM mode while TPS611781 is in the forced

PWM mode.

The TPS61178x could isolate the output from input

side when shutdown. Once the output is shorted, it

enters into the hiccup mode to lower the thermal

stress and can recover automatically after the short

releases. Additionally, the TPS61178x also has OVP

and thermal protection to avoid the fault operation.

The TPS61178x is in a 3.0-mm x 3.5-mm 13-pin

VQFN package with enhanced thermal dissipation.