TPS61178 Datasheet, PDF (1/35 Pages) Texas Instruments – 20-V, 10-A Fully-Integrated Synchronous Boost with Load Disconnect Control

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TPS61178, TPS611781
SLVSDA7 – FEBRUARY 2017
TPS61178x 20-V, 10-A Fully-Integrated Synchronous Boost with Load Disconnect Control
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%: V_IN = 7.2 V, V_OUT = 16 V,
I_OUT = 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 on-
resistance 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61178
TPS611781
QFN (13)
3.00 mm × 3.5 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
L
VIN
CIN
CVCC
ON
OFF
RFreq
RLIMIT
VIN
VCC
EN
FREQ /
SYNC
BST
SW
VOUT
DISDRV
ILIMIT
AGND
FB
COMP
PGND
CBST
P-FET (option)
COUT1
RGATE
CGATE
RUP
RDOWN
Cc
Cp
RC
VOUT2
COUT2
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.