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LF33C - Very low drop voltage regulator

Download the LF33C datasheet PDF. This datasheet also covers the LF33AB variant, as both devices belong to the same very low drop voltage regulator family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LF33AB-STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by STMicroelectronics

Part Number Description
LF33AB Very low drop voltage regulator
LF30AB Very low drop voltage regulators
LF30C Very low drop voltage regulators
LF347 WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS
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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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