TPS65137AS

ACTIVE

250mA Dual Outputs AMOLED Display Power Supply

Product details

Display type AMOLED IC integration AMOLED bias Vin (min) (V) 2.5 Vin (max) (V) 4.8 Applications 7 inches or less Level shifter/scan driver (Ch) 0 V_POS (min) (V) 4.6 V_POS (max) (V) 4.6 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) 2.5 Vin (max) (V) 4.8 Applications 7 inches or less Level shifter/scan driver (Ch) 0 V_POS (min) (V) 4.6 V_POS (max) (V) 4.6 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
  • 2.5 V to 4.8 V Input Voltage Range
  • 0.8% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • 250 mA Output Current
  • Fixed 4.6 V VPOS Output Voltage
  • Digitally Programmable VNEG, –2.2V to –5.2V
  • –4.9V Default Value for VNEG
  • Short Circuit Protection
  • Thermal Shutdown
  • 3mm × 3mm 10-Pin QFN Package
  • 2.5 V to 4.8 V Input Voltage Range
  • 0.8% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • 250 mA Output Current
  • Fixed 4.6 V VPOS Output Voltage
  • Digitally Programmable VNEG, –2.2V to –5.2V
  • –4.9V Default Value for VNEG
  • Short Circuit Protection
  • Thermal Shutdown
  • 3mm × 3mm 10-Pin QFN Package

The TPS65137AS is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. The device integrates a boost converter with LDO post regulator and an inverting buckboost converter suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65137AS uses a novel technology enabling excellent line and load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage disturbances occurring during transmit periods in mobile phones.

The TPS65137AS is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. The device integrates a boost converter with LDO post regulator and an inverting buckboost converter suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65137AS uses a novel technology enabling excellent line and load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage disturbances occurring during transmit periods in mobile phones.

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TPS65631 ACTIVE Dual Outputs AMOLED Display Power Supply This product has dual output rails, better accuracy for Vpos and better line transient regulation.
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Technical documentation

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Type Title Date
* Data sheet 250mA Dual Outputs AMOLED Display Power Supply datasheet (Rev. B) 05 Sep 2013
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 Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

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