LM7905CT

Description：IC REG LINEAR -5V 1A TO220-3
Series：-
Mfr：onsemi
Package：Tube

SKU:1a228389b52f Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: onsemi

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Product introduction

LM7905CT is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR -5V 1A TO220-3. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LM7905CT

Description：IC REG LINEAR -5V 1A TO220-3
Series：-
Mfr：onsemi
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)：2V @ 1A (Typ)
Current - Output：1A
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：60dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220-3
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LM7905CT

LM7905CT

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

The LM7905CT is a three-terminal negative voltage regulator manufactured by ON Semiconductor, formerly Fairchild. It provides a fixed output of -5V with an output current capability exceeding 1A. The device operates within an input voltage range of -35V to -7V and supports junction temperatures from 0°C to +125°C. Key electrical characteristics include a typical quiescent current of 36mA, ripple rejection of 60dB at 120Hz, and a dropout voltage of 2V at 1A load. It features internal thermal overload protection, short circuit protection, and safe operating area compensation.

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

Integrated thermal overload protection prevents damage during overheating conditions.
Short circuit protection safeguards the device against output faults.
Output transistor safe operating area compensation ensures stability under varying load conditions.

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

Negative fixed output power supplies
Split power supply systems requiring dual polarity rails
Analog circuits requiring stable negative voltage references

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

Verify that the ordering suffix matches the required package and temperature grade. Confirm manufacturer lineage as ON Semiconductor acquired Fairchild; legacy part numbers may reflect previous branding. Ensure compliance with RoHS directives if applicable to your specific revision. Validate component authenticity through authorized distribution channels to avoid counterfeit risks.

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

Select this component when a fixed negative rail is required for analog or mixed-signal applications. Consider the thermal resistance and heat dissipation requirements given the linear regulation method. Ensure the input voltage remains sufficiently above the dropout threshold to maintain regulation. Evaluate system power budget constraints due to inherent efficiency limitations compared to switching regulators.

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

This component belongs to the LM79XX series of three-terminal negative regulators. The series offers various fixed output voltages including -5V, -6V, -8V, -9V, -10V, -12V, -15V, -18V, and -24V. All variants share similar protection features and are available in TO-220 packages, providing a standardized solution for negative voltage generation across different design specifications.