MP3430

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90V Step-Up Converter with APD Current Monitor (1:10 or 1:2 ratio) with 5% Accuracy



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Product Description

The MP3430 is a monolithic step-up converter that integrates a power switch and a biased avalanche photodiode (APD) current monitor. The device can double the output voltage through the APD optical receivers. The MP3430 can provide up to 90V output.  The MP3430 uses a current-mode, fixed-frequency architecture to regulate the output voltage, which provides a fast transient response and cycle-by-cycle current limiting. The MP3430 features two accurate APD current monitoring outputs with 1:10 and 1:2 ratios, respectively. Resistor-adjustable current limiting protects the APD from optical power transients.  The MP3430 includes over-current and thermal-overload protection to prevent damage in the event of an output overload.  The MP3430 is available in a small 3mm×3mm QFN16 package.

Product Features

  • 2.7V-to-5.5V Input Voltage
  • 100V/1Ω NFET with 0.9A Limit
  • Up to 90V Output Voltage
  • 50ns APD Current Monitoring Response Speed
  • 1.3MHz Fixed Switching Frequency
  • Internal Compensation and Soft-Start
  • High-Side APD Current Monitor with less than ±5% Tolerance.
  • 1:10 and 1:2 Ratio Outputs for APD Current Monitoring
  • Thermal-Shutdown Protection
  • Programmable APD Over-Current Limit and Protection
  • 3×3mm QFN16 Package

Parametrics

  • Vout (min) (V)2.7
  • Vin (min) (V)2.7
  • Vin (max) (V)5.5
  • Isw Limit (typ) (A)0.9
  • Iq (typ) (mA)0.3
  • Regulated Outputs1
  • Vout (max) (V)90
  • Vfb (V)0.8
  • GradeCatalog
  • PackageQFN-16 (3x3)
  • Special FeaturesAdjustable Switch Current Limit, Thermal Shutdown
  • SS内部
  • Down ModeNo
  • PGNo
  • Input/Output DisconnectNo
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Evaluation Kit

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Kit details

The MP3430 is a monolithic step-up converter with an integrated power switch and a biased avalanche-photodiode (APD) current monitor. The output voltage can be doubled by design through the APD’s optical receivers. The MP3430 can provide up to 90V output.

The MP3430 uses a current-mode, fixed-frequency architecture to regulate the output voltage and provide a fast transient response and cycle-by-cycle current limit. The MP3430 features two accurate APD current-monitoring outputs with 1:10 and 1:2 ratios, respectively. Resistor-adjustable current limiting protects the APD from optical power transients.

US$ 25.00 + tax