L78M05ABV

$0.57

Description：IC REG LINEAR 5V 500MA TO220
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:bbd18d08c5c1 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 500MA TO220
Series：-
Mfr：STMicroelectronics
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：35V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：500mA
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：62dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220
Grade：-
Qualification：-

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L78M05ABV

Overview

The L78M05ABV is a three-terminal positive linear voltage regulator from the L78MxxA series, manufactured by STMicroelectronics. It provides a fixed output voltage of 5 V with an output current capability up to 0.5 A. The device operates within an input voltage range of 7 V to 35 V and features an extended operating temperature range from -40 °C to +125 °C. Key electrical characteristics include a typical quiescent current of 6 mA, line regulation of 100 mV (VI = 7 to 25 V), load regulation of 100 mV (IO = 5 to 500 mA), and supply voltage rejection of 62 dB at 120 Hz. It is housed in a TO-220-3 package.

Feature Summary

Integrated thermal overload protection that shuts down the circuit during excessive power conditions.
Internal short-circuit protection limits maximum output current to prevent damage.
Output transistor safe-area protection reduces output current as voltage across the pass transistor increases.

Applications

Local on-card regulation for electronic circuits
Current boosting configurations using external components
Adjustable voltage regulators when used with external resistors

Procurement Notes

Verify the specific suffix 'AB' indicates the ±2% output voltage tolerance and extended temperature grade (-40°C to 125°C). Confirm the package type matches the required board layout, as this part number specifies the TO-220 through-hole variant. Ensure compatibility with the intended input voltage range not exceeding 35 V DC.

Selection Notes

Select this component for applications requiring a fixed 5 V output with moderate current demands up to 500 mA. The AB designation ensures tighter voltage tolerance compared to standard C versions. Consider the thermal resistance of the TO-220 package and ensure adequate heat sinking if the power dissipation exceeds internal limits under high load or input-output differential conditions.

Part Context

This device belongs to the L78MxxA family of precision 500 mA regulators. It shares functional similarities with the L78M05AC but offers superior voltage accuracy and wider temperature operation. The L78M series is designed to eliminate distribution problems associated with single-point regulation by providing local voltage control directly on the circuit board.