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Product details

Parameters

Display type LCD Bipolar IC integration LCD Bias Vin (Min) (V) 2.9 Vin (Max) (V) 5 Source driver voltage (Min) (V) -5 Source driver voltage (Max) (V) 5 Level shifter/scan driver (ch) 0 V_POS (Min) (V) 5 V_POS (Max) (V) 5 V_NEG (Min) (V) -5 V_NEG (Max) (V) -5 Special function Topology Split-Rail Rating Catalog open-in-new Find other LCD & OLED display power & drivers

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WSON (DPD) 12 9 mm² 3 x 3 open-in-new Find other LCD & OLED display power & drivers

Features

  • 2.9-V to 5.0-V Input Voltage Range
  • Fixed 5.0-V Positive Output Voltage (VPOS)
  • Fixed –5.0-V Negative Output Voltage
    (VNEG)
  • ±1% Output Voltage Accuracy
  • High Efficiency
  • 250-mA Output Current Capability
  • Independent Converter Operation Allows 100%
    Output Current Mismatch
  • Excellent Line and Load Transient Response
  • Operates in CCM to Minimize Output Noise
  • Boost Converter able to Operate with Input Supply
    Voltages close to 5.0 V
  • Short-Circuit Protection
  • Thermal Shutdown
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Description

The TPS65133 is designed to supply any system requiring ±5.0-V supply rails. Each output can supply up to 250 mA of output current. The input supply voltage range is suitable for use with lithium ion batteries or from a fixed 3.3-V supply.

Efficiency is typically over 90% for most applications (operating from a lithium ion battery, output currents in the range 50 mA to 200 mA). The two converters in the TPS65133 device operate independently, allowing 100% mismatch between positive and negative output currents.

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Similar but not functionally equivalent to the compared device:
TPS65130 ACTIVE Split-Rail Converter with Dual, Positive and Negative Outputs (300mA typ) This product has the ability to go up to +/-15V instead of being fixed at +/-5.0V.
TPS65132 ACTIVE Split-Rail, Single Inductor Dual Output Converter with Positive and Negative Outputs This product is +/-4...6V at 80mA (compared to being fixed at +/-5.0V at 250mA).

Technical documentation

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Type Title Date
* Datasheet TPS65133 ±5-V, 250-mA Dual-Output Power Supply datasheet (Rev. A) Apr. 20, 2015
Application notes Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep. 19, 2018
Application notes Basic calculation of an inverting buck-boost power stage (Rev. A) Aug. 28, 2017
Technical articles The top three ways to split a voltage rail to a bipolar supply Dec. 27, 2016
Technical articles Where did the op amp ground pin go? Mar. 18, 2016
User guides TPS65133 Evaluation Module May 20, 2015
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Technical articles Everything is bigger in Texas Dec. 16, 2013
Technical articles Don’t underestimate the power of an LDO Oct. 19, 2013
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS65133 EVM is designed to evaluate the capabilities of the part to drive LCD displays requiring a positive and negative supply rail. TPS65133 may also be used as a general ±5 V supply for operational amplifiers or other devices requiring similar positive and negative supplies. The (...)

Features
  • Fixed ±5.0 V Output Voltages
  • 1% Output Voltage Accuracy
  • Excellent Line and Load Transient Response
  • 2.9 V to 5.0 V Input Voltage Range
  • Up to 250 mA Output Current from VPOS and VNEG

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WSON (DPD) 12 View options

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