TPS61081

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27V, 1.2A switch, 1.2MHz boost converter with integrated power diode

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 2.7 Vout (Max) (V) 27 Switch current limit (Typ) (A) 1.6 Switching frequency (Max) (kHz) 1200 Iq (Typ) (mA) 6 Features Synchronous Rectification Duty cycle (Max) (%) 94 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VSON (DRC) 10 9 mm² 3.00 x 3.00 VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other Boost converters (integrated switch)

Features

  • 2.5-V to 6-V Input Voltage Range
  • Up to 27-V Output Voltage
  • 0.5-A Integrated Switch (TPS61080)
    1.3-A Integrated Switch (TPS61081)
  • 12-V/400-mA and 24-V/170-mA
    From 5-V (Typical)
  • Integrated Power Diode
  • 1.2-MHz/600-kHz Selectable Fixed
    Switching Frequency
  • Input-to-Output Isolation
  • Short-Circuit Protection
  • Programmable Soft Start
  • Overvoltage Protection
  • Up to 87% Efficiency
  • 10-Pin 3-mm × 3-mm QFN Package
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Description

The TPS6108x is a 1.2 MHz/600 kHz fixed-frequency boost regulator designed for high integration, which integrates a power switch, an I/O isolation switch, and a power diode. When a short-circuit condition is detected, the isolation switch opens up to disconnect the output from the input. As a result, the IC protects itself and the input source from any pin, except VIN, from being shorted to ground. The isolation switch also disconnects the output from input during shutdown to prevent any leakage current. Other provisions for protection include 0.5 A/1.3 A peak-to-peak overcurrent protection, programmable soft start (SS), over voltage protection (OVP), thermal shutdown, and under voltage lockout (UVLO).

The IC operates from input supplies including single Li-ion battery, triple NiMH, and regulated 5 V, such as USB output. The output can be boosted up to 27 V. TPS6108x can provide the supply voltages of OLED, TFT-LCD bias, 12-V and 24-V power rails. The output of TPS6108x can also be configured as a current source to power up to seven WLEDs in flash light applications.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS6108x High-Voltage DC-DC Boost Converter With 0.5-A,1.3-A Integrated Switch datasheet (Rev. E) Dec. 24, 2014
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes Q3 2007 Issue Analog Applications Journal Aug. 10, 2007
Application notes TPS6108x: A boost converter with extreme versatility Aug. 10, 2007
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006
More literature Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies Feb. 15, 2001

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
199
Description

The 1280x800 LCD Display Accessory Kit is an add-on accessory for the AM65x IDK (TMDX654IDKEVM) to add touch and display functions for the evaluation of HMI, industrial PC, and other use cases requiring display. The 1280x800 LCD Display Accessory Kit comes bundled with the AM65x EVM (TMDX654GPEVM (...)

Features
Hardware

10.1" LCD screen (1280 x 800)
EVALUATION BOARDS Download
49
Description

The TPS61081EVM-147 facilitates evaluation of the TPS61081 IC configured as a boost converter regulating output voltage. It can be easily reconfigured to regulate current. The TPS61081 boost converter's output voltage is set by external resistors.

Features
  • 2.5 V to 6 V Input Voltage Range
  • Up to 27 V Output Voltage
  • 0.5 A/1.2 A Integrated Switch
  • 1.2 MHz/600 KHz Selectable Fixed Switching Frequency
  • Built-in Power Diode
  • Input-to-Output Isolation
  • Short-Circuit Protection
  • Programmable Soft Start
  • Overvoltage Protection
  • Up to 87% Efficiency
  • 10 Pin 3x3 mm QFN Package
DEVELOPMENT KITS Download
document-generic User guide
699
Description

The K2G Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx - 600MHz processor, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive applications.  Similar to (...)

Features
  • 66AK2G02 C66x DSP+ARM A15 Processor at 600MHz
  • 2-GByte DDR3L with ECC
  • TPS659118 PMIC
  • Audio and Serial expansion headers
  • Processor SDK Linux and TI-RTOS support
  • Supports Gigabit Ethernet
DEVELOPMENT KITS Download
document-generic User guide
699
Description

The EVMK2GX (also known as "K2G") 1GHz Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support
DEVELOPMENT KITS Download
document-generic User guide
1049
Description

The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start  evaluating and testing the programming of the  high secure developmental version of the  66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support

Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
SLVC155A.ZIP (147 KB)
GERBER FILES Download
SLVC136.ZIP (105 KB)

Reference designs

REFERENCE DESIGNS Download
Industrial Communications Gateway PROFINET IRT to PROFIBUS Master Reference Design
TIDEP-0075 — PROFINET is becoming the leading industrial Ethernet protocol in automation due to its high-speed, deterministic communications and enterprise connectivity. However, as the world’s most popular fieldbus, PROFIBUS’s importance and usage will continue for many years due to legacy (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
OPC UA Data Access Server for AM572x Reference Design
TIDEP0078 — OPC UA is an industrial machine-to-machine protocol designed to allow interoperability and communication between all machines connected under Industry 4.0. The TIDEP0078 TI Design demonstrates use of the MatrikonOPC™ OPC UA server development kit (SDK) to allow communications using an OPC UA (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Capacitive Touchscreen Display Reference Design
TIDEP0015 Capacitive touchscreen displays generally provide a higher quality and better user experience than traditional resistive touchscreen displays. This reference design shows how to interface a capacitive touchscreen display to the Sitara AM437x processors. The display has an integrated touchscreen (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options

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