Datasheet4U Logo Datasheet4U.com

L4989D Datasheet Low Power Voltage Regulator

Manufacturer: STMicroelectronics

Overview: L4989D L4989MD Low power voltage regulator.

General Description

The L4989M and L4989MD are monolithic integrated 5 V voltage regulators with a low drop voltage at currents up to 150 mA.

The output voltage regulating element consists in a p-channel MOS and the regulation is performed regardless of input voltage transients up to 40 V.

The high precision of the output voltage is obtained with a pre-trimmed reference voltage.

Key Features

  • Operating DC supply voltage range 5.6 V to 31 V.
  • Very low quiescent current with watchdog disabled.
  • Precision output voltage (3%).
  • Low drop voltage (180 mV typ at Io = 150 mA).
  • Reset circuit sensing the output voltage down to 1 V.
  • Programmable reset delay with external capacitor.
  • Watchdog disable input.
  • Programmable watchdog timer with external capacitor.
  • Thermal shutdown and short circuit protection.
  • Wide temperature range (Tj = -40°C to 150°C).

L4989D Distributor

More Datasheets from STMicroelectronics

Part Number Description
L4989 LOW POWER VOLTAGE REGULATOR
L4989MD Low power voltage regulator
L4981A POWER FACTOR CORRECTOR
L4981B POWER FACTOR CORRECTOR
L4984 CCM PFC controller
L4984D CCM PFC controller
L4985 CCM PFC controller
L4986 CCM PFC controller
L4987 VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT33TR Very low drop voltage regulators