DI317D1

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The DI317D1 is a positive adjustable voltage regulator manufactured by Diotec Semiconductor, housed in a TO-252AA (D-PACK) surface-mount package. It supports an output voltage range from 1.25 V to 37 V with a maximum output current of 1.5 A. The device features a reference voltage of approximately 1.25 V and operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum input-to-output differential voltage of 40 V, a typical thermal resistance junction-to-ambient of 55 K/W, and ripple rejection of 75 dB at 120 Hz with a 10 µF capacitor.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Adjustable output voltage capability spanning from the internal reference level up to 37 V
• High input voltage tolerance allowing for significant input-to-output differential operation
• Low voltage drop characteristic suitable for efficient linear regulation applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• High efficiency linear regulators
• Post regulators for switch mode DC-DC converters
• Battery backed-up regulated supply

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix requirements for your application environment. The standard DI317D1 is commercial/industrial grade. Suffixes -Q and -AQ denote AEC-Q101 compliance or qualification respectively, intended for automotive use. Confirm package orientation and pinout compatibility during integration. Ensure thermal design accounts for the specified thermal resistance values under actual PCB copper pad conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a robust, high-current adjustable regulator in a D-PACK package is required. Consider the 1.5 A continuous output limit and the 40 V maximum differential voltage. Evaluate thermal dissipation needs based on the 55 K/W junction-to-ambient resistance. For automotive contexts, verify if the -Q or -AQ variants are necessary to meet AEC-Q101 standards. Ensure the minimum load current requirement of 10 mA can be met in the final circuit design.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to Diotec's line of positive adjustable voltage regulators, functionally similar to industry-standard three-terminal adjustable regulators. It utilizes a TO-252AA surface-mount package, distinguishing it from through-hole alternatives like the TO-220. The device integrates internal protection mechanisms and offers stable performance across commercial and industrial temperature ranges, serving as a core power management IC for various electronic systems.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.