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UPC1933 - DC-DC CONVERTER CONTROL IC

General Description

The µ PC1933 is an IC that controls a low-voltage input DC-DC converter.

This IC is suitable for an operation with3-V, 3.3-V input or a lithium ion secondary battery input, because the minimum operating supply voltage is 2.5 V.

Key Features

  • Low supply voltage: 2.5 V (MIN. ).
  • Operating voltage range: 2.5 to 20 V (breakdown voltage: 30 V).
  • Timer latch circuit for short-circuit protection.
  • Ceramic capacitor with low capacitance (0.1 µ F) can be used for short-circuit protection.
  • Open drain output (1 cannel: This output can be used to control a step-down converter, a step-up converter. ).
  • Dead time is internally fixed to 85 %.
  • Soft start function (with a circuit to conver.

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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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DATA SHEET BiCMOS INTEGRATED CIRCUIT µ PC1933 DC-DC CONVERTER CONTROL IC DESCRIPTION The µ PC1933 is an IC that controls a low-voltage input DC-DC converter. This IC is suitable for an operation with3-V, 3.3-V input or a lithium ion secondary battery input, because the minimum operating supply voltage is 2.5 V. Because of its wide operating voltage range, it can also be used to control DC-DC converters that use an AC adapter for input. FEATURES • Low supply voltage: 2.5 V (MIN.) • Operating voltage range: 2.5 to 20 V (breakdown voltage: 30 V) • Timer latch circuit for short-circuit protection. • Ceramic capacitor with low capacitance (0.1 µ F) can be used for short-circuit protection.