SG109 Series

Positive Fixed Linear Voltage Regulators, - Positive 5.0V Fixed, 1A

Catalog

Positive Fixed Linear Voltage Regulators, - Positive 5.0V Fixed, 1A

Part	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Output Configuration	Output Type	Current - Output	Voltage - Output (Min/Fixed)	Qualification	Number of Regulators	Protection Features	Mounting Type	Grade	Package / Case	Current - Quiescent (Iq)
Microchip Technology SG109K-883B	-55 °C	150 °C	25 V	Positive	1.81 mOhm	1 A	5 V	MIL-STD-883	1	Over Temperature	Through Hole	Military	TO-204AA TO-3	10 mA

Catalog

Positive Fixed Linear Voltage Regulators, - Positive 5.0V Fixed, 1A

Key Features

• * Fully Compatible with TTL and DTL

• * Output Current in Excess of 1A

• * Internal Thermal Overload Protection

• * No Additional External Components

• * Bandgap Reference Voltage

• * Foldback Current Limiting

Description

The SG109 is a self-contained 5V regulator designed to provide local regulation at currents up to 1A for digital logic cards. This device is available in the hermetic TO-3 and TO-39 packages. The SG109's design has protective features principally current limiting to control the peak currents and thermal shutdown to protect against excessive power dissipation. These features make the device blowout proof. With the only added component being an optional input bypass capacitor, this regulator becomes extremely easy to apply. Utilizing an improved Bandgap reference design, problems that are normally associated with the Zener diode references, such as, drift in output voltage and large changes in the line and load regulation have been eliminated Microchip Ordering Part Standard Microcircuit Drawing (SMD) SG109T-JAN Cross Reference [M38510/10701BXA](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf) SG109T-JAN Cross Reference [M38510/10701BXX](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)