L7905CD2T

$0.37

Description：IC REG LINEAR -5V 1.5A D2PAK
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:1232a6e536c9 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR -5V 1.5A D2PAK
Series：-
Mfr：STMicroelectronics
Package：Tube
Output Configuration：Negative
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：-35V
Voltage - Output (Min/Fixed)：-5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.4V @ 1A (Typ)
Current - Output：1.5A
Current - Quiescent (Iq)：3 mA
Current - Supply (Max)：-
PSRR：60dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Supplier Device Package：D2PAK
Grade：-
Qualification：-

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L7905CD2T

Overview

The L7905CD2T is a three-terminal negative voltage regulator from the L79xxC series, manufactured by STMicroelectronics. It provides a fixed output voltage of -5 V with an output current capability up to 1.5 A. The device is housed in a D²PAK surface-mount package and features thermal overload protection, short circuit protection, and output transition SOA protection. It operates within a junction temperature range of 0 to 150 °C and supports a maximum DC input voltage of -35 V for this output voltage level.

Feature Summary

Provides local on-card regulation to eliminate distribution problems associated with single-point regulation.
Compatible with split power supplies due to matching voltage options with the L78xx positive standard series.
Includes built-in thermal overload protection and short circuit protection for enhanced reliability.

Applications

Split power supply systems
Local on-card voltage regulation
Negative voltage generation circuits

Procurement Notes

Verify the specific order code against the manufacturer's official documentation to ensure correct package type and revision status. Confirm that the application environment remains within the specified absolute maximum ratings, particularly regarding input voltage limits and thermal dissipation requirements. Ensure compliance with environmental standards such as ECOPACK specifications if required by the design constraints.

Selection Notes

Select this component when a fixed negative voltage rail is required in a surface-mount design. The D²PAK package offers suitable thermal performance for applications requiring up to 1.5 A output current with adequate heat sinking. Consider the dropout voltage characteristics and line/load regulation specifications relative to the expected input voltage variations and load currents in the target system.

Part Context

This part belongs to the L79xxC series of three-terminal negative regulators. The series is available in multiple packages including TO-220, TO-220FP, and D²PAK, offering various fixed output voltages. The L7905 variant specifically targets -5 V applications, complementing the L7805 positive regulator for dual-rail power supply designs.