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reference designMPQ1531 | Demoboard EVQ1531-M-00A

Monolithic Power Systems MPQ1531 | Demoboard EVQ1531-M-00A

Low Power, Triple Output Step-Up Plus Charge Pump for TFT Bias

Overview

TopologyBoost Converter
Input voltage2.7-5 V
Output 115 V / 0 A
Output 2-10 V / 0 A
Output 35 V / 0.1 A
IC revision1.0

Description

The EVQ1531-M-00A Evaluation Board isdesigned to demonstrate the capabilities ofMPS’ MP1531 triple output step-up converterwith charge-pumps.The MP1531 includes a 250KHz fixed-frequencystep-up converter and a positive and negativelinear regulator. The linear regulators arepowered via charge-pumps driven by the step-upconverter switch node.A single on/off control enables all 3 outputs.The outputs are internally sequenced at poweronfor ease of use. An internal soft-startprevents overloading the input source at startup.Cycle-by-cycle current limit reduces componentstress.

Features

  • 2.7V to 5.5V Operating Input Range
  • 500mA Switch Current Limit
  • 3 Outputs in Single Package
  • Step-Up Converter up to 22V
  • Positive 10mA Linear Regulator
  • Negative 10mA Linear Regulator
  • 250mΩ Internal Power MOSFET Switch
  • Up to 95% Efficiency
  • 1μA Shutdown Mode
  • Fixed 250KHz Frequency
  • Positive Regulator up to 38V
  • Negative Regulator down to -20V
  • Internal Power-On Sequencing
  • Adjustable Soft-Start/Fault Timer
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Under Voltage Lockout
  • Ready Flag

Typical applications

  • TFT LCD Displays/ Car Navigation Displays
  • Tablet PCs
  • Portable DVD Players

More information

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744062220
SPECWE-TPC SMT Tiny Power Inductor, 22 µH, 1.22 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance22 µH
Rated Current1.22 A
Saturation Current0.95 A
Self Resonant Frequency20 MHz
MountSMT 
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