LP3990QTLX-1.8Q1 The Texas Instruments LP3990QTLX-1.8Q1 is a 150mA linear voltage regulator with a fixed 1.8V output. It operates with an input voltage range of 2V to 6V and features low quiescent current.
Mfr Part #:

LP3990QTLX-1.8Q1

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LP3990QTLX-1.8Q1 is a 150mA linear voltage regulator with a fixed 1.8V output. It operates with an input voltage range of 2V to 6V and features low quiescent current.
✓ Total Stock: 120,533 pcs
$ Price Range: $0.38

LP3990QTLX-1.8Q1 Available from 1 distributor

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LP3990QTLX-1.8Q1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Accuracy
Automotive Grade
Control Features
Current
Load Capacitance
Mounting Type
Noise
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
PSRR
Protection Features
Supplier Device Package
Thermal Resistance
Voltage
Voltage Dropout (Max)

LP3990QTLX-1.8Q1 Description

Short technical summary and product information.

The Texas Instruments LP3990QTLX-1.8Q1 is an automotive-qualified, 150mA low-IQ, low-dropout linear voltage regulator. It provides a fixed output voltage of 1.8V and operates from an input voltage range of 2V to 6V. The device features thermal-overload and short-circuit protection, along with a logic-controlled enable pin.

 

With a very low quiescent current of 43µA when enabled and virtually zero current when disabled (<10nA), this regulator is suitable for power-sensitive applications. It offers low output noise of 150µV RMS and a PSRR of 55dB at 1kHz. The regulator is stable with a 1µF ceramic capacitor and requires no noise bypass capacitor.

 

The LP3990QTLX-1.8Q1 is supplied in a compact 4-DSBGA (1x1 mm) package, suitable for surface mounting. Its operating temperature range is -40°C to 125°C, making it ideal for demanding automotive environments. The device also boasts a fast start-up time of 105µs.

LP3990QTLX-1.8Q1 Quick Information

Product Type: Linear Voltage Regulator
Series: LP3990-Q1
Canonical Name: Texas Instruments LP3990-Q1 150-mA Linear Voltage Regulator
Subcategory: LDO Voltage Regulator

LP3990QTLX-1.8Q1 Compliance

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

LP3990QTLX-1.8Q1 Estimated Pricing

Qty Low High
1+ $0.38 $0.38

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

LP3990QTLX-1.8Q1 Features

  • 150mA output current capability.
  • Fixed 1.8V output voltage.
  • Low quiescent current of 43µA.
  • Wide 2V to 6V input voltage range.
  • Automotive qualified AEC-Q100.

LP3990QTLX-1.8Q1 Applications

  • Ideal for automotive digital systems.
  • Suitable for low-power applications.
  • Used in noise-sensitive circuits.
  • Power supply for portable devices.

LP3990QTLX-1.8Q1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LP3990QTLX-1.8Q1?

The LP3990QTLX-1.8Q1 provides a fixed output voltage of 1.8V.

What is the maximum output current?

The maximum output current is 150mA.

What is the input voltage range?

The input voltage range is 2V to 6V.

What is the operating temperature range?

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

What package does the LP3990QTLX-1.8Q1 come in?

The LP3990QTLX-1.8Q1 is available in a 4-DSBGA (1x1) package.

Does the LP3990QTLX-1.8Q1 have enable control?

Yes, it includes an enable control feature.

What protection features are included?

The regulator includes over-temperature and short-circuit protection.

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