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TPS61259 Datasheet Preview

TPS61259 Datasheet

3.5-MHz High Efficiency Step-Up Converter

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TPS61253, TPS61254, TPS61256, TPS61258, TPS61259, TPS612592
SLVSAG8G – SEPTEMBER 2011 – REVISED JUNE 2016
TPS6125x 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging
1 Features
1 93% Efficiency at 3.5-MHz Operation
• 21-µA Quiescent Current in Standby Mode
• 37-µA Quiescent Current in Normal Operation
• Wide VIN Range From 2.3 V to 5.5 V
• VIN VOUT Operation
• IOUT 800 mA at VOUT = 4.5 V, VIN 2.65 V
• IOUT 1000 mA at VOUT = 5.0 V, VIN 3.3 V
• IOUT 1500 mA (Peak) at VOUT = 5.0 V, VIN 3.3
V
• ±2% Total DC Voltage Accuracy
• Light-Load PFM Mode
• Selectable Standby Mode or True Load
Disconnect During Shutdown
• Thermal Shutdown and Overload Protection
• Only Three Surface-Mount External Components
Required
• Total Solution Size < 25 mm2
• 9-Pin NanoFreeTM (CSP) Packaging
2 Applications
• Cell Phones, Smart Phones
• Mono and Stereo APA Applications
• USB Charging Ports (5V)
The TPS6125x operates at a regulated 3.5-MHz
switching frequency and enters power-save mode
operation at light load currents to maintain high
efficiency over the entire load current range. The
PFM mode extends the battery life by reducing the
quiescent current to 37 μA (typ) during light load
operation.
In addition, the TPS6125x device can also maintain
its output biased at the input voltage level. In this
mode, the synchronous rectifier is current limited
allowing external load (e.g. audio amplifier) to be
powered with a restricted supply. In this mode, the
quiescent current is reduced to 21 µA. During
shutdown, the load is completely disconnected from
the battery. Input current in shutdown mode is less
than 1 µA (typ), which maximizes battery life.
The TPS6125x offers a very small solution size due
to minimum amount of external components. It allows
the use of small inductors and input capacitors to
achieve a small solution size.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6125x
DSBGA (9)
1.206 mm × 1.306 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Load Current
3 Description
The TPS6125x device provides a power supply
solution for battery-powered portable applications.
Intended for low-power applications, the TPS6125x
supports up to 800-mA load current from a battery
discharged as low as 2.65V and allows the use of low
cost chip inductor and capacitors.
With a wide input voltage range of 2.3 V to 5.5 V, the
device supports applications powered by Li-Ion
batteries with extended voltage range. Different fixed
voltage output versions are available from 3.15 V to
5.0 V.
100
90
80
70
60
50
40
30
20
10
0
VI - Input Voltage - V
.
VO = 5.0 V
I O - 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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.




etcTI

TPS61259 Datasheet Preview

TPS61259 Datasheet

3.5-MHz High Efficiency Step-Up Converter

No Preview Available !

TPS61253, TPS61254, TPS61256, TPS61258, TPS61259, TPS612592
SLVSAG8G – SEPTEMBER 2011 – REVISED JUNE 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Options....................................................... 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 .................................................. 6
7.5 Electrical Characteristics........................................... 6
7.6 Typical Characteristics .............................................. 9
8 Parameter Measurement Information ................ 14
9 Detailed Description ............................................ 15
9.1 Overview ................................................................. 15
9.2 Functional Block Diagram ....................................... 15
9.3 Feature Description................................................. 16
9.4 Device Functional Modes........................................ 17
10 Application and Implementation........................ 19
10.1 Application Information.......................................... 19
10.2 Typical Application ................................................ 19
10.3 System Examples ................................................. 24
11 Power Supply Recommendations ..................... 26
12 Layout................................................................... 26
12.1 Layout Guidelines ................................................. 26
12.2 Layout Example .................................................... 26
12.3 Thermal Considerations ........................................ 27
13 Device and Documentation Support ................. 28
13.1 Device Support...................................................... 28
13.2 Related Links ........................................................ 28
13.3 Receiving Notification of Documentation Updates 28
13.4 Community Resources.......................................... 28
13.5 Trademarks ........................................................... 28
13.6 Electrostatic Discharge Caution ............................ 28
13.7 Glossary ................................................................ 28
14 Mechanical, Packaging, and Orderable
Information ........................................................... 29
14.1 Package Summary................................................ 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (March 2016) to Revision G
Page
• Changed the Package Dimensions section.......................................................................................................................... 29
Changes from Revision E (March 2015) to Revision F
Page
• Added device TPS612592...................................................................................................................................................... 4
Changes from Revision D (December 2014) to Revision E
Page
• Changed Body Size (NOM) from "1.60 mm × 1. 60" to "1.206 mm × 1. 306" in the Device Information table...................... 1
• Added table note reference to Third-Party Products Disclaimer .......................................................................................... 19
Changes from Revision C (August 2012) to Revision D
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
Changes from Revision B (May 2012) to Revision C
Page
• Added TPS61259 to data sheet header as production device............................................................................................... 1
• Changed device TPS61259 to production status ................................................................................................................... 4
2 Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
Product Folder Links: TPS61253 TPS61254 TPS61256 TPS61258 TPS61259 TPS612592


Part Number TPS61259
Description 3.5-MHz High Efficiency Step-Up Converter
Maker etcTI
Total Page 30 Pages
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