TPS65137

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Dual Positive and Negative Outputs w/ Digital Vneg Adjustment

Product details

Display type AMOLED IC integration AMOLED bias Vin (min) (V) 2.3 Vin (max) (V) 5.5 Applications 7 inches or less Level shifter/scan driver (Ch) 0 V_POS (min) (V) 4.63 V_POS (max) (V) 4.63 V_NEG (min) (V) -5.2 V_NEG (max) (V) -2.2 Features Digital control interface Topology Boost, Inverting Buck-Boost Rating Catalog Operating temperature range (°C) -40 to 85
Display type AMOLED IC integration AMOLED bias Vin (min) (V) 2.3 Vin (max) (V) 5.5 Applications 7 inches or less Level shifter/scan driver (Ch) 0 V_POS (min) (V) 4.63 V_POS (max) (V) 4.63 V_NEG (min) (V) -5.2 V_NEG (max) (V) -2.2 Features Digital control interface Topology Boost, Inverting Buck-Boost Rating Catalog Operating temperature range (°C) -40 to 85
WSON (DSC) 10 9 mm² 3 x 3
  • 2.3 V to 5.5 V Input Voltage Range
  • 1% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • Low Noise Operation
  • 200 mA Output Current
  • Fixed 4.63 V Positive Output Voltage
  • Digitally Programmable Negative Output
    Voltage Down to –5.23V
  • –4.93V Default Value for VNEG
  • Advanced Power Save Mode
  • Short Circuit Protection
  • Thermal Shutdown
  • TPS65137A High impedance output in shutdown
  • 3×3 mm 10 Pin QFN Package
  • 2.3 V to 5.5 V Input Voltage Range
  • 1% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • Low Noise Operation
  • 200 mA Output Current
  • Fixed 4.63 V Positive Output Voltage
  • Digitally Programmable Negative Output
    Voltage Down to –5.23V
  • –4.93V Default Value for VNEG
  • Advanced Power Save Mode
  • Short Circuit Protection
  • Thermal Shutdown
  • TPS65137A High impedance output in shutdown
  • 3×3 mm 10 Pin QFN Package

The TPS65137 is designed to provide best in class picture quality for AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. With its wide input voltage range the device is ideally suited for AMOLED displays, which are used in mobile phones and smart phones. With this device the input voltage can be higher than the positive output voltage and still maintains accurate regulation of VPOS. Using the digital control pin (CTRL) allows adjusting the negative output voltage in digital steps. The TPS65137 uses a novel technology enabling excellent line and load regulation with minimum output voltage ripple by using a LDO post regulator for VPOS. This is required avoiding disturbance of the AMOLED display due to input voltage transients occurring during transmit periods in mobile phones.

The TPS65137 is designed to provide best in class picture quality for AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. With its wide input voltage range the device is ideally suited for AMOLED displays, which are used in mobile phones and smart phones. With this device the input voltage can be higher than the positive output voltage and still maintains accurate regulation of VPOS. Using the digital control pin (CTRL) allows adjusting the negative output voltage in digital steps. The TPS65137 uses a novel technology enabling excellent line and load regulation with minimum output voltage ripple by using a LDO post regulator for VPOS. This is required avoiding disturbance of the AMOLED display due to input voltage transients occurring during transmit periods in mobile phones.

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Technical documentation

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Type Title Date
* Data sheet 200mA Dual Output AMOLED Display Power datasheet (Rev. A) 10 Oct 2012
Application note 스트컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 21 Nov 2022
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Oct 2022
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Application note Basic calculation of an inverting buck-boost power stage (Rev. A) 28 Aug 2017
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
User guide TPS65137A Evaluation Module 13 Aug 2010
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

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Evaluation board

TPS65137AEVM-366 — TPS65137A Evaluation Module

The Texas Instruments TPS65137AEVM-366 uses a TPS65137A 200-mA, dual-output, AMOLED (Active Matrix Organic Light-Emitting Diode) display power regulator to provide both a positive and negative power rail. The goal of the EVM is to facilitate evaluation of the TPS65137A. The TPS65137A is designed to (...)

User guide: PDF
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Support software

SLVC405 TPS65137AEVM-366 Software

Supported products & hardware

Supported products & hardware

Products
LCD & OLED display power & drivers
TPS65137 Dual Positive and Negative Outputs w/ Digital Vneg Adjustment
Hardware development
Evaluation board
TPS65137AEVM-366 TPS65137A Evaluation Module
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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