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MP8125

Active

8-14V, 550mA, LNB Power Supply and Control Voltage Regulator

Learn about our Evaluation Kit
Talk to an Engineer or get a Quote

Datasheet (EN)

Product Description

The MP8125 is a voltage regulator designed to provide efficient, low noise power to the Satellite receiver’s RF LNB (Low Noise Block) converter via coaxial cable through a DiSEqC 1.x compatible link that receives instructions from a dedicated controller. The MP8125 integrates a current mode boost regulator followed by a tracking linear regulator. The boost regulator provides a clean and quiet power source that will not contaminate the low noise RF signal down converted to the receiver. The tracking linear regulator protects the output against overload or short. The MP8125 provides a number of features described in the European EUTELSAT specification (DiSEqC) including: voltage selection of horizontal or vertical polarization directions of LNB and a selectable VOUT compensation for voltage drop on the long coaxial cable. In accordance with DiSEqC standard, a tone signal of 22kHz is generated by an internal oscillator and can be activated or deactivated onto output by EXTM pin.

Product Features

  • DiSEqC 1.x Compatibility
  • Up to 550mA Output Current
  • 8V to 14V Input Voltage
  • Boost Converter with Internal Switch
  • Low Noise LDO Output
  • Built-in 22kHz Tone Signal Generator
  • Programmable Current Limit
  • 1V Line Drop Compensation
  • Adjustable Soft-start Time
  • POK Indicator
  • Short Circuit Protection
  • Over Temperature Protection
  • TSSOP16 Exposed Pad and 24-pin QFN (4 x 4mm) Packages

Parametrics

  • PGYes
  • 22kHz Tones Signal Generated1
  • Vout (V)13,14,18,19
  • SSExternal
  • Special FeaturesDiSEqCTM1.x, Line Drop Compensation, SCP
  • GradeCatalog
  • Channels1
  • PackageQFN-24 (4x4), TSSOP16
  • fsw (max) (kHz)352
  • Iout (A)0.55
  • Vin (max) (V)14
  • Vin (min) (V)8

EV8125EF-00A


550mA, 8-14V Input, LNB Power Supply and Control Voltage Regulator Evaluation Board

The EV8125EF-00A is an evaluation board for MP8125, which is LNB power supply and control voltage regulator. The board provides efficient, low noise power to the Satellite receiver’s RF LNB (Low Noise Block) converter.

The board accepts the supply voltage from 8V to 14V and the load current can be up to 550mA. The current limit can be adjustable with an external resistor.

The board provides a number of features described in the European EUTELSAT specification (DiSEqC) including: voltage selection of horizontal or vertical polarization directions of LNB and a selectable VOUT compensation for voltage drop on the long coaxial cable. In accordance with DiSEqC standard, a tone signal of 22kHz is generated by an internal oscillator and can be activated or deactivated onto output by EXTM pin.

$25.00 + tax