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Product Detailed Parameters
- Description：IC REG LINEAR 5V 150MA SOT23-5
- Series：-
- Mfr：NOVOSENSE
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：5V
- Voltage Dropout (Max)：0.62V @150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：5 µA
- Current - Supply (Max)：12 µA
- PSRR：85dB
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
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Overview
The NSR31050-QSTAR is a fixed-output linear regulator manufactured by NOVOSENSE, designed for automotive applications. It provides a stable 5V output with a maximum current of 150mA. The device supports an input voltage range up to 40V and features a typical dropout voltage of 0.62V at full load. Key electrical specifications include a quiescent current of 5µA and a power supply rejection ratio (PSRR) of 85dB. It operates within a temperature range of -40°C to 125°C and is housed in a SOT-23-5 package.
Feature Summary
- Wide input voltage capability suitable for automotive battery systems
- Ultra-low static current for energy efficiency
- Integrated thermal shutdown and overcurrent protection
Applications
- Automotive electric drive control boards
- Microcontroller unit (MCU) power supply
- Vehicle low-voltage system regulation
Procurement Notes
Verify the component's AEC-Q100 qualification status and RoHS compliance against the official datasheet before integration. Confirm that the SOT-23-5 package matches your PCB footprint requirements. Ensure the selected supplier provides traceable documentation for automotive-grade parts to meet quality standards.
Selection Notes
Select this component when a fixed 5V rail is required for sensitive automotive electronics. Its wide input range accommodates standard 12V and 24V vehicle architectures. The low quiescent current makes it suitable for systems requiring minimal standby power consumption during off-states.
Part Context
This part belongs to the NSR31 series of automotive-grade LDOs from NOVOSENSE. The series includes variants with different output currents, such as 300mA and 500mA options. These regulators are specifically engineered to withstand harsh automotive environments, including load dump and cold start conditions.
Replacement Considerations
Check for direct pin-compatible alternatives within the same NOVOSENSE family or other automotive LDO manufacturers offering similar 5V/150mA specifications. Verify that any substitute meets the same thermal and electrical performance criteria.
