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TPS61372 Datasheet

3.8-A Synchronous Boost

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TPS61372
SLVSEE7A – JUNE 2018 – REVISED DECEMBER 2018
TPS61372 16-V, 3.8-A Synchronous Boost With Load Disconnect
1 Features
1 Input Voltage Range: 2.5 V to 5.5 V
• Output Voltage Range: up to 16 V
• On-Resistance:
– Low-Side FET - 33 m
– High-Side FET - 104 m
• Switch Peak Current Limit: 3.8 A
• Quiescent Current From VIN: 74 μA
• Quiescent Current From VOUT: 10 μA
• Shutdown Current From VIN: 1 μA
• Switching Frequency: 1.5 MHz
• Soft-start time: 0.9 ms
• Hiccup Output Short Protection
• Auto PFM and Forced PWM Selectable
• Load Disconnect During Shutdown
• External Loop Compensation
• Output Overvoltage Protection
• 1.57-mm × 1.52-mm × 0.5 mm 16-Pin WCSPs
• Create a Custom Design Using the TPS61372
With WEBENCH® Power Designer
2 Applications
• RF PA Driver
• NAND Flash
• Backup Power
• Motor Driver
• Optical Sensor Driver
3 Description
The TPS61372 is a full-integrated synchronous boost
converter with the load disconnect built-in. The device
supports output voltage up to 16 V with a 3.8-A
current limit. The input voltage ranges from 2.5-V to
5.5-V supporting applications powered by a single-
cell Lithium-ion battery or 5-V bus.
The TPS61372 uses the peak current mode with the
adaptive off-time control topology. The device works
in PWM operation of 1.5 MHz at moderate-to-heavy
loads. At the light load conditions, the device can be
configured in either auto PFM or forced PWM
operation by the MODE pin connection. Auto PFM
mode has the benefit of high efficiency at light load
while forced PWM operation keeps the switching
frequency constant across the whole load range. The
TPS61372 has a soft start to minimize the inrush
current during start-up. The TPS61372 features of the
load disconnect during shut down and provides a
output short protection of hiccup mode. In addition,
the device implements output overvoltage and
thermal shutdown protection. The TPS61372 delivers
a compact solution size with a 16-pin WCSP 1.57-
mm × 1.52-mm package of 0.5-mm height.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61372
DSBGA (16)
1.57 mm × 1.52 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
L
CBST
CIN
BST
VIN
Forced
Auto PWM
PFM
MODE
ON
OFF
EN
SW
VOUT
COUT
VOUT
RUP
FB
RDOWN
GND
COMP
Cc
RC
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.




etcTI

TPS61372 Datasheet Preview

TPS61372 Datasheet

3.8-A Synchronous Boost

No Preview Available !

TPS61372
SLVSEE7A – JUNE 2018 – REVISED DECEMBER 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 8
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 12
8 Application and Implementation ........................ 13
8.1 Application Information............................................ 13
8.2 Typical Application: 3-V to 5-V Input, 12-V Output
Boost Converter ....................................................... 13
9 Power Supply Recommendations...................... 22
10 Layout................................................................... 22
10.1 Layout Guidelines ................................................. 22
10.2 Layout Example .................................................... 23
10.3 Thermal Considerations ........................................ 24
11 Device and Documentation Support ................. 25
11.1 Device Support .................................................... 25
11.2 Receiving Notification of Documentation Updates 25
11.3 Community Resources.......................................... 25
11.4 Trademarks ........................................................... 25
11.5 Electrostatic Discharge Caution ............................ 25
11.6 Glossary ................................................................ 26
12 Mechanical, Packaging, and Orderable
Information ........................................................... 26
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (June 2018) to Revision A
Page
• First release of production-data data sheet ........................................................................................................................... 1
2
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Product Folder Links: TPS61372
Copyright © 2018, Texas Instruments Incorporated


Part Number TPS61372
Description 3.8-A Synchronous Boost
Maker etcTI
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