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TPS63050 Datasheet

Single Inductor Buck-Boost

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TPS63050, TPS63051
SLVSAM8D – JULY 2013 – REVISED AUGUST 2019
TPS6305x Single Inductor Buck-Boost With 1-A Switches and Adjustable Soft Start
1 Features
1 Real buck or boost with seamless transition
between buck and boost mode
• 2.5 V to 5.5 V Input voltage range
• 0.5-A Continuous output current: VIN 2.5 V,
VOUT = 3.3 V
• Adjustable and fixed output voltage version
• Efficiency > 90% in boost mode and > 95% in
buck mode
• 2.5-MHz Typical switching frequency
• Adjustable average input current limit
• Adjustable soft-start time
• Device quiescent current < 60 μA
• Automatic power save mode or forced PWM mode
• Load disconnect during shutdown
• Overtemperature protection
• Small 1.6mm x 1.2mm, 12-pin WCSP and 2.5mm
x 2.5mm 12-pin HotRod™ QFN package
• Create a custom design using the:
– TPS63050 With the WEBENCH® Power
Designer
– TPS63051 With the WEBENCH® Power
Designer
2 Applications
• Cellular and smart phones
• Tablets PC
• PC and smart phone accessories
• Battery powered applications
• Smart grid/smart meter
Simplified Schematic (WCSP)
L1 1.5 µH
2.5 V to 5.5 V
VIN C1
10µF
VIH or VIL
TPS63051
L1 L2
VIN VOUT
EN FB
ILIM0
PFM/
PWM
GND
PG
ILIM1
SS
R2
1MΩ
VIH or VIL
C3
1nF
3.3 V / 500mA
C2
10µF
VOUT
C3
10µF
3 Description
The TPS6305x family of devices is a high efficiency,
low quiescent-current buck-boost converter, suitable
for applications where the input voltage is higher or
lower than the output.
Continuous output current can go as high as 500 mA
in boost mode and as high as 1 A in buck mode. The
maximum average current in the switches is limited to
a typical value of 1 A. The TPS6305x family of
devices regulate the output voltage over the complete
input voltage range by automatically switching
between buck or boost mode depending on the input
voltage, ensuring seamless transition between
modes.
The buck-boost converter is based on a fixed-
frequency, pulse-width-modulation (PWM) controller
using synchronous rectification to obtain the highest
efficiency. At low load currents, the converter enters
Power Save Mode to maintain high efficiency over
the complete load current range.
The PFM/PWM pin allows the user to select between
automatic-PFM/PWM mode operation and forced-
PWM operation. During PWM mode a fixed-frequency
of typically 2.5 MHz 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 12-pin DSBGA and in a 12-pin
HotRod package.
PART NUMBER
TPS63050
TPS63051
Device Information(1)
PACKAGE
BODY SIZE (NOM)
DSBGA (12)
1.56 mm x 1.16 mm
VQFN (12)
2.50 mm × 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Output Current
VIN = 2.8V, VOUT = 3.3V
VIN = 3.6V, VOUT = 3.3V
TPS63051
Output Current (mA)
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

TPS63050 Datasheet Preview

TPS63050 Datasheet

Single Inductor Buck-Boost

No Preview Available !

TPS63050, TPS63051
SLVSAM8D – JULY 2013 – REVISED AUGUST 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 4
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings ............................................................ 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information ................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Switching Characteristics .......................................... 7
7.7 Typical Characteristics .............................................. 8
8 Detailed Description .............................................. 9
8.1 Overview ................................................................... 9
8.2 Functional Block Diagrams ....................................... 9
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 12
9 Application and Implementation ........................ 15
9.1 Application Information............................................ 15
9.2 Typical Application ................................................. 15
10 Power Supply Recommendations ..................... 23
11 Layout................................................................... 23
11.1 Layout Guidelines ................................................. 23
11.2 Layout Example (WCSP) ...................................... 23
11.3 Layout Example (HotRod)..................................... 23
11.4 Thermal Considerations ........................................ 24
12 Device and Documentation Support ................. 24
12.1 Custom Design With WEBENCH® Tools ............. 24
12.2 Device Support .................................................... 24
12.3 Related Links ........................................................ 24
12.4 Receiving Notification of Documentation Updates 25
12.5 Community Resources.......................................... 25
12.6 Trademarks ........................................................... 25
12.7 Electrostatic Discharge Caution ............................ 25
12.8 Glossary ................................................................ 25
13 Mechanical, Packaging, and Orderable
Information ........................................................... 25
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (July 2015) to Revision D
Page
• Added Webench links to the data sheet................................................................................................................................. 1
• Changed the Pin Configurations............................................................................................................................................. 4
• Changed the quiescent current VIN max value From: 60 µA To: 65 µA in the Electrical Characteristics ............................. 6
• Added Note: Conditions: TJ = –40°C to 85°C To the quiescent current and shutdown current in the Electrical
Characteristics ........................................................................................................................................................................ 6
Changes from Revision B (April 2015) to Revision C
Page
• Added new package option to Features................................................................................................................................. 1
• Added VQFN package to Device Information table .............................................................................................................. 1
• Added HotRod Pin Configuration and Functions ................................................................................................................... 4
• Added Parameter Measurement Circuit for HotRod package option ................................................................................... 15
Changes from Revision A (February 2014) to Revision B
Page
• Changed Description section ................................................................................................................................................. 1
• Changed graphic image ........................................................................................................................................................ 1
• Changed Ordering Information table To:Device Comparison Table ..................................................................................... 4
• Changed "Handling Ratings" table to "ESD Rating" table and moved Tstg spec to the Absolute Maximum Ratings table.... 5
• Moved some Typical Characteristics graphs to the Application Curves section ................................................................... 8
2 Submit Documentation Feedback
Copyright © 2013–2019, Texas Instruments Incorporated
Product Folder Links: TPS63050 TPS63051


Part Number TPS63050
Description Single Inductor Buck-Boost
Maker etcTI
Total Page 30 Pages
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