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LF33AB - Very low drop voltage regulator

Datasheet Summary

Description

The LFXX is a very low drop regulator available in TO-220, TO-220FP, DPAK and PPAK packages and in a wide range of output voltages.

The low drop voltage (0.45 V) and low quiescent current make it particularly suitable for low-noise, low-power applications and especially in batterypowered systems.

Features

  • Very low-dropout voltage (0.45 V).
  • Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode).
  • Output current up to 500 mA.
  • Logic-controlled electronic shutdown.
  • Output voltages of 1.5; 1.8; 2.5; 3.3; 4.7; 5; 6; 8; 8.5; 9; 12 V.
  • Automotive grade product: 1.8 V, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 8.5 V VOUT in DPAK and PPAK packages.
  • Internal current and thermal limit.
  • Only 2.2 µF for stability.
  • Available in ±1% (AB), ±1.5% (AC) or ±2% (C) select.

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Datasheet preview – LF33AB

Datasheet Details

Part number LF33AB
Manufacturer STMicroelectronics
File Size 1.58 MB
Description Very low drop voltage regulator
Datasheet download datasheet LF33AB Datasheet
Additional preview pages of the LF33AB datasheet.

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Full PDF Text Transcription

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LFXX Very low drop voltage regulator with inhibit function Datasheet - production data Features  Very low-dropout voltage (0.45 V)  Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode)  Output current up to 500 mA  Logic-controlled electronic shutdown  Output voltages of 1.5; 1.8; 2.5; 3.3; 4.7; 5; 6; 8; 8.5; 9; 12 V  Automotive grade product: 1.8 V, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 8.5 V VOUT in DPAK and PPAK packages  Internal current and thermal limit  Only 2.2 µF for stability  Available in ±1% (AB), ±1.5% (AC) or ±2% (C) selection at 25 °C  Supply voltage rejection: 80 db (typ.
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