EV0055

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Triple Output Step-Up, Plus Charge Pump for TFT Bias
  • 数量 价格
  • 1
    US$ 25.00 /unit

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Product Description

The EV0055 evaluation board is designed to demonstrate the capabilities of MPS’ MP1530 triple output step-up converter which is capable of powering a TFT panel from a regulated 3.3V or 5V.

The MP1530 includes a 1.4MHz fixed-frequency step-up converter and a positive and negative linear regulator. The linear regulators are powered from a charge-pump driven by the step-up converter switch node (SW).

A single on/off control enables all 3 outputs. The outputs are internally sequenced at power on and power off for ease of use. An internal soft-start prevents overloading the input source at startup. Cycle-by-cycle over current protection limits component overstress.

Product Features

  • 2.7 to 5.5V Operating Input Range
  • 2.8A Switch Current Limit
  • 3 Outputs In Single Package
  • Step-Up Converter up to 22V
  • Positive 20mA Linear Regulator
  • Negative 20mA Linear Regulator
  • 250m? Internal Power MOSFET Switch
  • Up to 95% Efficiency
  • 1?A Shutdown Mode
  • Fixed 1.4MHz 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

Parametrics

  • IC Supported 1MP1530

Monolithic IC

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IC Details

The MP1530 combines a triple output step-up converter with linear regulators to provide a complete DC/DC solution. It is designed to power TFT LCD panels from a regulated 3.3V or 5V supply. This device integrates a 1.4MHz fixed frequency step-up converter with positive and negative linear regulators. The step-up converter switch node drives two charge pumps, which supply powers to their respective linear regulators. The positive and negative linear regulator inputs can withstand up to 38V and down to -20V, respectively. A single on/off control enables all 3 outputs. The outputs are internally sequenced at startup for ease of use. An internal soft-start prevents input overload at startup. Cycle-by-cycle current limiting reduces component stress. The MP1530 is available in a tiny 3mm x 3mm, 16-pin QFN package or a 16-pin TSSOP package.