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MC78L05ABDR2G

ONMC78L05ABDR2G

onsemi
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA 8-SOIC
Active101,902 in stock

Overview

The MC78L05ABDR2G is a fixed-output positive linear voltage regulator designed to deliver 5V at up to 100mA. It is a cost-effective solution for local on-card regulation, eliminating noise and distribution problems associated with single-point regulation. This 8-SOIC device includes internal thermal overload protection and short-circuit current limiting to ensure robust operation under fault conditions.

Why Choose This Part

The regulator requires no external components for basic operation, reducing PCB footprint and BOM complexity. It features a wide operating temperature range from -40C to 125C and a high maximum input voltage of 30V. Integrated protection features like thermal shutdown and internal current limiting make it highly resilient to circuit abuses.

Applications

Local On-Card Regulation
Providing a stable 5V rail directly at the point of load to minimize noise and voltage drops.
Current Limiter
Utilizing the internal circuitry to serve as a precision current limiter for low-power branches.
Logic Level Supply
Powering 5V CMOS or TTL logic circuits from higher voltage unregulated DC sources up to 30V.

Key Specifications

PSRR 49dB (120Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Output 100mA
Protection Features Over Temperature, Short Circuit
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 30V
Supplier Device Package 8-SOIC
Current - Quiescent (Iq) 6 mA
Voltage - Output (Min/Fixed) 5V

Getting Started

To implement this regulator, connect the input pin to a DC source between 7V and 20V for optimal performance, and the output pin to your 5V load. Although not strictly required by the internal design, it is best practice to place a 0.33uF ceramic capacitor on the input and a 0.1uF capacitor on the output to improve high-frequency response and stability. Ensure the SOIC-8 package has adequate copper area for heat dissipation if operating near the 100mA limit with high input-to-output voltage differentials.

Also Consider

MC78L05ABPG ONonsemi - The TO-92 through-hole version of this regulator, suitable for prototyping or breadboard use.