LP3985IM5-3.3/NOPB The Texas Instruments LP3985IM5-3.3/NOPB is a micropower, 150-mA low-noise, ultra-low-dropout CMOS voltage regulator. It operates with an input voltage range of 2.5V to 6V and provides a fixed 3.3V output.
Mfr Part #:

LP3985IM5-3.3/NOPB

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LP3985IM5-3.3/NOPB is a micropower, 150-mA low-noise, ultra-low-dropout CMOS voltage regulator. It operates with an input voltage range of 2.5V to 6V and provides a fixed 3.3V output.
✓ Total Stock: 142,579 pcs
$ Price Range: $0.42

LP3985IM5-3.3/NOPB Available from 6 distributors

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LP3985IM5-3.3/NOPB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Automotive Grade
Industrial Grade
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Medical Grade
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Quiescent Current
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Thermal Resistance

LP3985IM5-3.3/NOPB Description

Short technical summary and product information.

The Texas Instruments LP3985IM5-3.3/NOPB is a high-performance, low-noise, ultra-low-dropout (LDO) linear voltage regulator designed for various applications. It can supply 150 mA of current while maintaining a low dropout voltage, typically 100 mV at a 150 mA load. The device features a wide input voltage range from 2.5V to 6V and offers fixed output voltage options, including 3.3V for this specific part number.

 

Key electrical characteristics include a typical quiescent current of 85 µA, which drops to 1.5 µA when shut down, making it suitable for power-sensitive applications. It boasts a high Power Supply Rejection Ratio (PSRR) of 42 dB at 100 kHz and 50 dB at 1 kHz, ensuring clean power delivery. The output noise is a low 30 µVrms over a 10 Hz to 100 kHz bandwidth.

 

This regulator is available in compact packages such as DSBGA and SOT-23, supporting surface mount installation. It operates across a wide temperature range of -40°C to 125°C and includes features like thermal shutdown and short-circuit current limit for enhanced reliability. The enable pin allows for standard logic control, and it is stable with ceramic and high-quality tantalum capacitors.

LP3985IM5-3.3/NOPB Quick Information

Product Type: Low-Dropout Voltage Regulator
Canonical Name: Texas Instruments LP3985IM5-3.3/NOPB Micropower, 150-mA Low-Noise Ultra-Low-Dropout CMOS Voltage Regulator
Subcategory: LDO Regulator

LP3985IM5-3.3/NOPB Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LP3985IM5-3.3/NOPB Estimated Pricing

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1+ $0.42 $0.42

Estimated market price range - modelled values for guidance only, not live distributor offers.

LP3985IM5-3.3/NOPB Features

  • 150-mA output current capability.
  • Low 100-mV dropout voltage at 150-mA load.
  • Low output noise of 30 µVrms.
  • High PSRR of 42 dB at 100 kHz.
  • Wide operating temperature range.

LP3985IM5-3.3/NOPB Applications

  • Ideal for battery-powered devices.
  • Suitable for noise-sensitive electronics.
  • Used in portable communication devices.
  • Powering sensitive analog circuits.

LP3985IM5-3.3/NOPB FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the LP3985IM5-3.3/NOPB?

The maximum input voltage is 6 V.

What is the typical output current of the LP3985IM5-3.3/NOPB?

The typical output current is 150 mA.

What is the fixed output voltage of this regulator?

This specific part number provides a fixed output voltage of 3.3 V.

What is the dropout voltage at a 150-mA load?

The maximum dropout voltage is 100 mV at a 150-mA load.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What is the output noise level?

The output noise is typically 30 µVrms over a 10 Hz to 100 kHz bandwidth.

What is the PSRR at 100 kHz?

The Power Supply Rejection Ratio (PSRR) at 100 kHz is typically 42 dB.

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