DATASHEET and Circuit Diagram

This datasheet contains information related to L9407F Voltage Regulator from STMicroelectronics which is a monolithic multifunction device intended for use in automotive application. You may see the L9407F application schematic diagram below.

An article contains information related to the Basic Operation of Linear Regulators is provided herein. It might help for understanding the most commonly used regulating modes by the linear regulators (standards, low dropout, quasi low dropout).

The following diagram shows you LM340/LM78xx monolithic 3-terminal positive voltage regulators physical dimension. It is for TO-3 Metal Can Package (K) NS Package Number K02A. The physical dimension are in inches (milimeters) – click picture to enlarge.

The following figure shows you with Low Battery Disconnect and Memory Backup Circuit Diagram of the ADM666A. ADM666A is a linear voltage regulators featuring a maximum quiescent current of 9 mA which is suitable for for battery powered systems in addition of Handheld Instruments, Pagers, and LCD Display Systems applications.

You can modify this Short Circuit Protection Diagram of Motorolla MC7800 Series by adding a short circuit sense resistor, Rsc and a PNP transistor in order to provide supply protection against short circuits. Specify a four-ampere plastic power transistor while you use current sensing PNP transistor which must be able to handle the short circuit [...]

What you will get in the feature sections are an Output Current In Excess of 1.5A, Output Adjustable Between 1.2V and 37V, Output Transistor Safe Operating Area Compensation, Internal Short Circuit Current Limiting, and Internal Thermal Overload Protection. Its operating temperature are 0 C to +125 C for LM317T, and 0 C to +125 C for LM317D2TXM.