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TPS61390 - Boost Converter

General Description

The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V.

The switching peak current is up to 1000 mA.

The TPS61390 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).

Key Features

  • 1 Input voltage range: 2.5 V to 5.5 V.
  • Output voltage range: up to 85 V.
  • R(DS)on of switching FET: 0.9 Ω.
  • Switch current limit: 1000 mA.
  • Sample window with minimum 400-ns.
  • High optical power protection with 0.5-µs response time.
  • Switching frequency: 700 kHz.
  • Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC.
  • Soft-start time: 4.8 ms.
  • Package: 3 mm × 3 mm × 0.75 mm QFN 2.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Order Now Technical Documents Tools & Software Support & Community TPS61390 SLVSEL7B – APRIL 2019 – REVISED OCTOBER 2019 TPS61390 85-VOUT Boost Converter With Current Mirror and Sample / Hold 1 Features •1 Input voltage range: 2.5 V to 5.5 V • Output voltage range: up to 85 V • R(DS)on of switching FET: 0.9 Ω • Switch current limit: 1000 mA • Sample window with minimum 400-ns • High optical power protection with 0.5-µs response time • Switching frequency: 700 kHz • Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC • Soft-start time: 4.8 ms • Package: 3 mm × 3 mm × 0.