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TPS630241 Datasheet Preview

TPS630241 Datasheet

High Efficiency Single Inductor Buck-Boost Converter

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TPS63024
TPS630241, TPS630242
SLVSCK8A – NOVEMBER 2014 – REVISED DECEMBER 2014
TPS63024x High Current, High Efficiency Single Inductor Buck-Boost Converter
1 Features
1 Real Buck or Boost operation with automatic and
seamless transition between Buck and Boost
operation
• 2.3V to 5.5V input voltage range
• 1.5A Continuous Output Current : VIN2.5V,
VOUT= 3.3V
• Adjustable and fixed output voltage
• Efficiency up to 95% in Buck or Boost mode and
up to 97% when VIN=VOUT
• 2.5MHz typical switching frequency
• 35μA operating quiescent current
• Integrated Soft –Start
• Power Save Mode
• True shutdown function
• Output capacitor discharge function
• Over-Temperature Protection and Over current
Protection
• Wide capacitance selection
• Small 1.766 mm x 2.086mm, 20-pin WCSP
2 Applications
• Cellular Phones, Smart Phones
• Tablets PC
• PC and Smart Phone accessories
• Point of load regulation
• Battery Powered Applications
3 Description
The TPS63024 are high efficiency, low quiescent
current buck-boost converters suitable for application
where the input voltage is higher or lower than the
output. Output currents can go as high as 1.5A in
boost mode and as high as 3A in buck mode. The
maximum average current in the switches is limited to
a typical value of 3A. The TPS63024 regulates the
output voltage over the complete input voltage range
by automatically switching between buck or boost
mode depending on the input voltage ensuring a
seamless transition between modes. The buck-boost
converter is based on a fixed frequency, pulse-width-
modulation (PWM) controller using synchronous
rectification to obtain highest efficiency. At low load
currents, the converter enters Power Save Mode to
maintain high efficiency over the complete load
current range. There is a PFM/PWM pin that allows
the user to choose between automatic PFM/PWM
mode operation and forced PWM operation. During
PWM mode a fixed-frequency of typically 2.5MHz is
used. The output voltage is programmable using an
external resistor divider, or is fixed internally on the
chip. The converter can be disabled to minimize
battery drain. During shutdown, the load is
disconnected from the battery. The device is
packaged in a 20-pin WCSP package measuring
1.766 mm x 2.086mm.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS63024
TPS630241
DSBGA (20)
1.766 mm × 2.086 mm
TPS630242
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VIN
2.5 V to 5.5 V
C1
10µF
1
Typical Application
L1 1µH
TPS63024
L1 L2
VIN VOUT
EN FB
VINA
GND
PFM/
PWM
PGND
VOUT
3.3 V up to 1.5A
C2
2X22µF
Device Comparison
PART NUMBER
VOUT
TPS63024
Adjustable
TPS630241
2.9 V
TPS630242
3.3 V
Efficiency vs Output Current
100
95
90
85
80
75
70
65
60
55
50 TPS630242
45
100µ
1m
VIN = 2.8V, VOUT = 3.3V
VIN = 3.3V, VOUT = 3.3V
VIN = 3.6V, VOUT = 3.3V
VIN = 4.2V, VOUT = 3.3V
10m 100m
1 1.5
Output Current (A)
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

TPS630241 Datasheet Preview

TPS630241 Datasheet

High Efficiency Single Inductor Buck-Boost Converter

No Preview Available !

TPS63024
TPS630241, TPS630242
SLVSCK8A – NOVEMBER 2014 – REVISED DECEMBER 2014
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......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ................................................ 6
6.7 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 11
8 Application and Implementation ........................ 14
8.1 Application Information............................................ 14
8.2 Typical Application .................................................. 14
9 Power Supply Recommendations...................... 21
10 Layout................................................................... 21
10.1 Layout Guidelines ................................................. 21
10.2 Layout Example .................................................... 21
11 Device and Documentation Support ................. 22
11.1 Device Support .................................................... 22
11.2 Documentation Support ....................................... 22
11.3 Related Links ........................................................ 22
11.4 Trademarks ........................................................... 22
11.5 Electrostatic Discharge Caution ............................ 22
11.6 Glossary ................................................................ 22
12 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (November 2014) to Revision A
Page
• Added Specifications, Detailed Description section, Application and Implementation section, Power Supply
Recommendations section, Layout section, Device and Documentation Support section; and, changed status to
Production Data. .................................................................................................................................................................... 4
2 Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: TPS630241 TPS630242


Part Number TPS630241
Description High Efficiency Single Inductor Buck-Boost Converter
Maker etcTI
Total Page 28 Pages
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