ST78L05D 100mA fixed 5V voltage regulator

ST78L05D 100mA Low-Dropout (LDO) Linear Regulator

ST78L05D

The ST78L05D is a 100mA three-terminal positive voltage regulator delivering a fixed 5V output with 2% output voltage accuracy. It integrates thermal overload protection, draws only 3mA typical quiescent current, achieves 60dB ripple rejection at 120Hz, and withstands input voltages up to 42V. Available in SOT89-3L, TO-92 and SOP8 packages for a wide range of 5V regulated power supply designs.

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Specifications

VIN7~20V (op.); Max 42V
VOUT5V
Accuracy2%
PSRR60dB@120Hz
IQ3mA (typ)
IOUT(MAX)100mA
PackageSOT89-3L, TO-92, SOP8

Product details

Overview

The ST78L05D is a three-terminal positive voltage regulator with a fixed 5V output, a maximum output current of 100mA and 2% output voltage accuracy. Integrated thermal overload protection safeguards the device and the system under abnormal conditions. It features a typical quiescent current of 3mA, 60dB ripple rejection at 120Hz, a typical dropout voltage of 1.7V, and withstands input voltages up to 42V over an operating temperature range of -40°C to +85°C. The ST78L05D is available in SOT89-3L, TO-92 and SOP8 packages, and bypass capacitors are recommended for optimum stability and transient response.

Features

  • Maximum output current: 100mA
  • Fixed 5V output
  • Output voltage accuracy: 2%
  • Integrated thermal overload protection
  • Quiescent current: 3mA (typ.)
  • Ripple rejection: 60dB at 120Hz
  • Dropout voltage: 1.7V (typ.)
  • Maximum input voltage: 42V
  • Operating temperature: -40°C ~ +85°C

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