HT7167 datasheet(2/18 Pages) YONGFUKANG

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HT7167

Synchronous Boost Converter

13V,10A Fully-Integrated Synchronous Boost Converter with

Load Disconnect Control

◼ FEATURES

・Input voltage range VIN: 2.7V to 13V

・Output voltage range VOUT: 4.5V to 13V

・Programmable switch peak current limit: up to

10A

・High Efficiency

93% (VIN = 7.4V, VOUT=12V, IOUT =3A)

92% (VIN = 3.6V, VOUT=9V, IOUT =1A)

・2 modulation mode available: PFM or PWM

mode at light load

・Integrated gate driver for load disconnect and

output short protection

・1.0μA current consumption during shutdown

・Adjustable switching frequency: 200k to 1.4MHz

・Programmable soft start

・Output overvoltage protection (at 14V), cycle-by-

cycle overcurrent protection, thermal shutdown

protection

・Pb-free Packages,DFN20L, 4.5mm*3.5mm

◼ APPLICATIONS

・Wireless/ Speakers ・Portable Speakers

・Quick Charge Power Bank ・E-Cigarette

・Power Interface (USB Type-C, Thunderbolt)

・POS Terminal

・Tablet PC/Note Book

◼ DESCRIPTION

The HT7167 is a high-power density, fully integrated

synchronous boost converter with a 16mΩ power

switch and a 23mΩ rectifier switch to provide a high

efficiency and small size solution in portable

systems. The HT7167 has wide input voltage range

from 2.7 V to 13 V to support applications with single

cell and two cell Lithium batteries. The device has

10A switch current capability and can provide an

output voltage up to 13V.

The HT7167 uses adaptive constant off-time peak

current control topology to regulate the output

voltage. In moderate to heavy load condition, it

works in the PWM mode. In light load condition, the

device has two operation modes selected by the

MODE pin. One is PFM mode to improve the

efficiency and another one is the forced PWM mode

to avoid application problems caused by low

switching frequency. The switching frequency in the

PWM mode is adjustable ranging from 200kHz to

1.4MHz by an external resistor.

HT7167 could isolate the output from input side

when shut down by a gate drive output

disconnecting external FET, so that the load current

consumption could be limited.

The HT7167 also implements a programmable soft-

start function and an adjustable switching peak

current limit function. In addition, the device

provides 14V output overvoltage protection, cycle-

by-cycle overcurrent protection, and thermal

shutdown protection.

◼ TYPICAL APPLICATION

HT7167

2.2uF

PGND

AGND

1uF

VIN

220 F

BOOT

VIN

FSW

VCC

OFF

MODE

COMP

ILIM

VOUT

DIS

Optional

VOUT

47nF

0.1uF

RFREQ

10uF

470uF

1uF

10uF22uF

10uF

RDN

RUP

RILIM

CSS

CBOOT

CVCC

CGATE

RGATE

VOUT: 4.5-13V

VIN: 2.7-13V

0.1uF

10uF

100R

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