Home Power management Linear & low-dropout (LDO) regulators
Home
Power management
Linear & low-dropout (LDO) regulators

LP3990-Q1

ACTIVE

Automotive 150-mA, low-IQ, low-dropout voltage regulator with enable

Order now
Data sheet

LP3990-Q1

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 1.2, 1.8, 2.8 Rating Automotive Noise (µVrms) 150 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 189 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 1.2, 1.8, 2.8 Rating Automotive Noise (µVrms) 150 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 189 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 4 1.5625 mm² 1.25 x 1.25
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • o Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
  • Input Voltage Range: 2 V to 6 V
  • 1% Voltage Accuracy at Room Temperature
  • Output Voltage Range: 0.8 V to 3.3 V
  • Output Current: 150 mA
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled): 43 µA
  • Low Output Noise: 150 µVRMS
  • PSRR: 55 dB at 1 kHz
  • Fast Start-Up: 105 µs
  • Stable with Ceramic Capacitor
  • Output Stable - Capacitors, 1 µF
  • No Noise Bypass Capacitor Required
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • o Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
  • Input Voltage Range: 2 V to 6 V
  • 1% Voltage Accuracy at Room Temperature
  • Output Voltage Range: 0.8 V to 3.3 V
  • Output Current: 150 mA
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled): 43 µA
  • Low Output Noise: 150 µVRMS
  • PSRR: 55 dB at 1 kHz
  • Fast Start-Up: 105 µs
  • Stable with Ceramic Capacitor
  • Output Stable - Capacitors, 1 µF
  • No Noise Bypass Capacitor Required

The LP3990-Q1 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990-Q1 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990-Q1 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to +125°C junction temperature range.

For output voltage options please refer to package option addendum (POA) or contact the Texas Instruments Sales Office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP3990-Q1 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990-Q1 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990-Q1 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to +125°C junction temperature range.

For output voltage options please refer to package option addendum (POA) or contact the Texas Instruments Sales Office.

For all available packages, see the orderable addendum at the end of the data sheet.
filter Find other Linear & low-dropout (LDO) regulators
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet LP3990-Q1 150-mA Linear Voltage Regulator for Digital Applications datasheet (Rev. A) PDF | HTML 22 Dec 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
DSBGA (YZR) 4 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos