Product details

Display type AMOLED IC integration AMOLED bias Vin (Min) (V) 2.9 Vin (Max) (V) 4.5 Level shifter/scan driver (ch) 0 V_POS (Min) (V) 4.62 V_POS (Max) (V) 4.62 V_NEG (Min) (V) -6.2 V_NEG (Max) (V) -2.2 Features Digital control interface Topology Boost, Inverting Buck-Boost Rating Catalog
Display type AMOLED IC integration AMOLED bias Vin (Min) (V) 2.9 Vin (Max) (V) 4.5 Level shifter/scan driver (ch) 0 V_POS (Min) (V) 4.62 V_POS (Max) (V) 4.62 V_NEG (Min) (V) -6.2 V_NEG (Max) (V) -2.2 Features Digital control interface Topology Boost, Inverting Buck-Boost Rating Catalog
VSON (DRC) 10 9 mm² 3 x 3
  • 2.9V to 4.5V Input Voltage Range
  • 0.8% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • 300mA Output Current
  • Fixed 4.62V Positive OutputVoltage
  • Digitally Programmable VNEG
    • TPS65138: –2.2V to –6.2V
    • TPS65138A: –2.2V to –5.2V
  • -4.9V Default Value for VNEG
  • Short Circuit Protection
  • Thermal Hhutdown
  • 3-mm × 3-mm QFN Package
  • 2.9V to 4.5V Input Voltage Range
  • 0.8% Output Voltage Accuracy VPOS
  • Excellent Line Transient Regulation
  • 300mA Output Current
  • Fixed 4.62V Positive OutputVoltage
  • Digitally Programmable VNEG
    • TPS65138: –2.2V to –6.2V
    • TPS65138A: –2.2V to –5.2V
  • -4.9V Default Value for VNEG
  • Short Circuit Protection
  • Thermal Hhutdown
  • 3-mm × 3-mm QFN Package

The TPS65138 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative supply rails. The device integrates boost converter and inverting buck boost converter designed suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65138 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 TPS65138 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative supply rails. The device integrates boost converter and inverting buck boost converter designed suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65138 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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Type Title Date
* Data sheet Dual output AMOLED display power supply . datasheet (Rev. C) 06 Mar 2013
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

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