LM2931AS-5.0/NOPB

$1.11

Description：IC REG LINEAR 5V 100MA TO263
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:c16bc7c50796 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: National Semiconductor

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Product introduction

LM2931AS-5.0/NOPB is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG LINEAR 5V 100MA TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LM2931AS-5.0/NOPB

Description：IC REG LINEAR 5V 100MA TO263
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：26V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.3V @ 100mA
Current - Output：100mA
Current - Quiescent (Iq)：15 mA
Current - Supply (Max)：30 mA
PSRR：80dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Supplier Device Package：TO-263 (DDPAK-3)
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LM2931AS-5.0/NOPB

LM2931AS-5.0/NOPB

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

The LM2931AS-5.0/NOPB is a fixed-output low-dropout linear voltage regulator manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It provides a stable 5 V output with a maximum load current of 100 mA. The device features a typical dropout voltage of 300 mV and operates within an input voltage range up to 26 V. It includes internal protections against overcurrent and thermal overload. The component is housed in a D2PAK-3 (TO-263-3) surface-mount package and supports an operating temperature range from -40 °C to +85 °C.

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

Fixed 5 V output voltage configuration for standard logic supply applications
High power supply rejection ratio to minimize noise sensitivity
Integrated thermal shutdown and current limiting for robust operation

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

Battery-powered systems requiring efficient voltage regulation
Local regulation in automotive electronic circuits
Noise-sensitive analog and digital circuit power supplies

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

Verify that the ordering suffix /NOPB confirms lead-free and RoHS compliance status as per manufacturer specifications. Confirm the package designation matches the required D2PAK-3 footprint for PCB layout compatibility. Ensure the fixed 5.0 V output variant aligns with system voltage requirements before procurement.

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

Select this component when a fixed 5 V rail is required with moderate current demands up to 100 mA. The TO-263-3 package offers improved thermal dissipation compared to smaller SOT packages. Consider the 26 V maximum input rating and ensure the input voltage does not exceed limits during transient events such as load dumps.

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

This regulator belongs to the LM2931 series of very low dropout regulators designed for low-noise and low-power applications. The series is suitable for battery-powered systems and automotive environments due to its high PSRR and protection features. The LM2931AS variant specifically denotes the fixed 5.0 V output version in the AS package style.

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

Cross-reference with LM2931CS/NOPB or LM2931CT/NOPB for adjustable versions if voltage flexibility is needed. Verify pinout compatibility between different package variants such as TO-220 or SO-8 before substitution.

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