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

LP3992

ACTIVE

30-mA, low-IQ, low-dropout voltage regulator with enable

Order now
Data sheet

LP3992

ACTIVE
Data sheet Order now

Product details

Rating Catalog Vin (max) (V) 5.2 Vin (min) (V) 1.9 Iout (max) (A) 0.03 Output options Fixed Output Vout (max) (V) 1.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5 Noise (µVrms) 300 PSRR at 100 KHz (dB) 23 Iq (typ) (mA) 0.026 Features Enable Thermal resistance θJA (°C/W) 171 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 400 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 5.2 Vin (min) (V) 1.9 Iout (max) (A) 0.03 Output options Fixed Output Vout (max) (V) 1.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5 Noise (µVrms) 300 PSRR at 100 KHz (dB) 23 Iq (typ) (mA) 0.026 Features Enable Thermal resistance θJA (°C/W) 171 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 400 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Input Voltage: 1.9 V to 5.2 V
  • Operation From a Low Input Voltage: 1.9 V
  • Accurate Output Voltage: 1.5 V ± 0.09 V
  • Quiescent Current in Shutdown: < 1.5 µA
  • Stable With an Output Capacitor: 1 µF
  • Ensured Output Current: 30 mA
  • Low Output Voltage Noise: 300 µVRMS
  • Low Quiescent Current: 29-µA Typical
  • Stable With a Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turnon and Turnoff
  • Thermal-Overload and Short-Circuit Protection
  • –40°C to +125°C Junction Temperature Range
  • Input Voltage: 1.9 V to 5.2 V
  • Operation From a Low Input Voltage: 1.9 V
  • Accurate Output Voltage: 1.5 V ± 0.09 V
  • Quiescent Current in Shutdown: < 1.5 µA
  • Stable With an Output Capacitor: 1 µF
  • Ensured Output Current: 30 mA
  • Low Output Voltage Noise: 300 µVRMS
  • Low Quiescent Current: 29-µA Typical
  • Stable With a Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turnon and Turnoff
  • Thermal-Overload and Short-Circuit Protection
  • –40°C to +125°C Junction Temperature Range

The LP3992 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise, and low quiescent current. Battery life is prolonged by the ability of the LP3992 to provide a 1.5-V output from the low input voltage of 1.9 V. Additionally, when switched to a shutdown mode via a logic signal at the enable (EN) pin, the power consumption is reduced to virtually zero. The LP3992 also features short-circuit and thermal-shutdown protection.

The LP3992 is designed to be stable with space-saving ceramic capacitors as small as 1 µF. Performance is specified for a –40°C to +125°C temperature range.

For output voltages other than 1.5 V, and for additional package options, contact TI.

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

The LP3992 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise, and low quiescent current. Battery life is prolonged by the ability of the LP3992 to provide a 1.5-V output from the low input voltage of 1.9 V. Additionally, when switched to a shutdown mode via a logic signal at the enable (EN) pin, the power consumption is reduced to virtually zero. The LP3992 also features short-circuit and thermal-shutdown protection.

The LP3992 is designed to be stable with space-saving ceramic capacitors as small as 1 µF. Performance is specified for a –40°C to +125°C temperature range.

For output voltages other than 1.5 V, and for additional package options, contact TI.

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
Top documentation Type Title Format options Date
* Data sheet LP3992 Micropower 1.5-V CMOS Voltage Regulator With Shutdown Control datasheet (Rev. C) PDF | HTML 19 Nov 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
SOT-23 (DBV) 5 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