Datasheet4U Logo Datasheet4U.com

LF18AB - Very low drop voltage regulator

Download the LF18AB datasheet PDF. This datasheet also covers the LF15AB 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 (LF15AB-STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LF1005-S Current Transducer LEM
LF100ED Dual Output Ultra-Miniature 1W SMT DC/DC Converters MicroPowerDirect
LF101ED Dual Output Ultra-Miniature 1W SMT DC/DC Converters MicroPowerDirect
LF102ED Dual Output Ultra-Miniature 1W SMT DC/DC Converters MicroPowerDirect
LF103ED Dual Output Ultra-Miniature 1W SMT DC/DC Converters MicroPowerDirect

Other Datasheets by STMicroelectronics

Part Number Description
LF18C Very low drop voltage regulator
LF120AB Very low drop voltage regulator
LF120C Very low drop voltage regulator
LF12AB VERY LOW DROP VOLTAGE REGULATORS
LF12C VERY LOW DROP VOLTAGE REGULATORS

Full PDF Text Transcription

Click to expand full text
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.
Published: |