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TPS61093-Q1
SLVSCO6 – JANUARY 2015
TPS61093-Q1 Low Input Boost Converter With Integrated Power Diode and Input/Output Isolation
1 Features
•1 AEC-Q100 Qualified with the Following Results: – Device Temperature Grade 1: -40°C to 125°C Junction Operating Temperature Range
• Input Range: 1.6-V to 6-V • Integrated Power Diode and Isolation FET • 20-V Internal Switch FET With 1.1-A Current • Fixed 1.2-MHz Switching Frequency • Efficiency at 15-V Output up to 88% • Overload and Overvoltage Protection • Programmable Soft Start-up • Load Discharge Path After IC Shutdown • 2.5 × 2.5 × 0.8 mm SON Package
2 Applications
• OLED Power Supply • 3.3-V to 12-V, 5-V to 12-V Boost Converter
3 Description
The TPS61093-Q1 is a 1.2-MHz, fixed-frequency boost converter designed for high integration and high reliability. The IC integrates a 20-V power switch, input/output isolation switch, and power diode. When the output current exceeds the overload limit, the isolation switch of the IC opens up to disconnect the output from the input. This disconnection protects the IC and the input supply. The isolation switch also disconnects the output from the input during shut down to minimize leakage current. When the IC is shutdown, the output capacitor is discharged to a low voltage level by internal diodes. Other protection features include 1.1-A peak overcurrent protection (OCP) at each cycle, output overvoltage protection (OVP), thermal shutdown, and undervoltage lockout (UVLO).
With its 1.6-V minimum input voltage, the IC can be powered by two alkaline batteries, a single Li-ion battery, or 3.3-V and 5-V regulated supply. The output can be boosted up to 17-V. The TPS61093-Q1 is available in 2.5 mm × 2.5 mm SON package with thermal pad.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61093-Q1
SON (10)
2.50 mm x 2.50 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
4 Simplified Schematic
VI 1.6 V to 6 V
L1
C1 4.7 mF
C3 100 nF
10 mH TPS61093
VIN CP1 CP2 EN SS
SW VO OUT FB GND
R3 200 kW
C5 1 mF
C2 0.1 mF
VO 15 V/50 mA
R1 294 kW
R2 10.2 kW
C4 1 mF
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.
TPS61093-Q1
SLVSCO6 – JANUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Simplified Schematic............................................. 1 5 Revision History..................................................... 2 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4 7.2 ESD Ratings.............................................................. 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information .................................................. 4 7.5 Electrical Characteristics........................................... 5 7.6 Timing Requirements ................................................ 5 7.7 Typical Characteristics .............................................. 6 8 Detailed Description .............................................. 8 8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 8 8.3 Feature Description................................................... 9 8.4 Device Functional Modes.......................................... 9 9 Application and Implementation ........................ 10 9.1 Application Information............................................ 10 9.2 Typical Applications ................................................ 10 10 Power Supply Recommendations ..................... 17 11 Layout................................................................... 17 11.1 Layout Guidelines ................................................. 17 11.2 Layout Example .................................................... 17 11.3 Thermal Considerations ........................................ 18 12 Device and Documentation Support ................. 19 12.1 Trademarks ........................................................... 19 12.2 Electrostatic Discharge Caution ............................ 19 12.3 Glossary ................................................................ 19 13 Mechanical, Packaging, and Orderable Information ........................................................... 19
5 Revision History
DATE January 2015
REVISION *
NOTES Initial Release
2.