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Linear & low-dropout (LDO) regulators

LP2985-N

ACTIVE

150-mA, 16-V, low-dropout voltage regulator with enable

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Data sheet

LP2985-N

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 16 Vin (Min) (V) 2.2 Vout (Max) (V) 6.1 Vout (Min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 6.1 Noise (uVrms) 30 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Rating Catalog Load capacitance (Min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 30 Dropout voltage (Vdo) (Typ) (mV) 280 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 16 Vin (Min) (V) 2.2 Vout (Max) (V) 6.1 Vout (Min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 6.1 Noise (uVrms) 30 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Rating Catalog Load capacitance (Min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 30 Dropout voltage (Vdo) (Typ) (mV) 280 Operating temperature range (C) -40 to 125
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • Input Voltage Range: 2.5 V to 16 V
  • Ultra Low-Dropout Voltage
  • Ensured 150 mA Output Current
  • Requires Minimum External Components
  • Stable With Low-ESR Output Capacitor
  • < 1 µA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • Output Voltage Accuracy 1% (A Grade)
  • High Peak Current Capability
  • Low ZOUT: 0.3 Ω Typical (10 Hz to 1 MHz)
  • Overtemperature and Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range
  • Custom Voltages Available
  • Input Voltage Range: 2.5 V to 16 V
  • Ultra Low-Dropout Voltage
  • Ensured 150 mA Output Current
  • Requires Minimum External Components
  • Stable With Low-ESR Output Capacitor
  • < 1 µA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • Output Voltage Accuracy 1% (A Grade)
  • High Peak Current Capability
  • Low ZOUT: 0.3 Ω Typical (10 Hz to 1 MHz)
  • Overtemperature and Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range
  • Custom Voltages Available

The LP2985-N low noise linear (LDO) regulator delivers up to 150-mA output current and only requires 300-mV dropout voltage of input to output. Using an optimized vertically integrated PNP (VIP) process, the LP2985-N delivers unequaled performance for all battery-powered designs. The LP2985-N device provides 1% tolerance precision output voltage with only 75-µA quiescent current at 1-mA load and 850 µA at 150-mA load. By adding a 10-nF bypass capacitor, the output noise can be reduced to 30 µVRMS in a 30-kHz bandwidth.

The LP2985-N is designed to work with a ceramic output capacitor with equivalent series resistance (ESR) as low as 5 mΩ. The device is available with fixed output voltage from 2.5 V to 6.1 V. Contact Texas Instrument Sales for specific voltage option needs.

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

The LP2985-N low noise linear (LDO) regulator delivers up to 150-mA output current and only requires 300-mV dropout voltage of input to output. Using an optimized vertically integrated PNP (VIP) process, the LP2985-N delivers unequaled performance for all battery-powered designs. The LP2985-N device provides 1% tolerance precision output voltage with only 75-µA quiescent current at 1-mA load and 850 µA at 150-mA load. By adding a 10-nF bypass capacitor, the output noise can be reduced to 30 µVRMS in a 30-kHz bandwidth.

The LP2985-N is designed to work with a ceramic output capacitor with equivalent series resistance (ESR) as low as 5 mΩ. The device is available with fixed output voltage from 2.5 V to 6.1 V. Contact Texas Instrument Sales for specific voltage option needs.

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

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Type Title Date
* Data sheet LP2985-N Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in a SOT-23 Package Designed for Use With Very Low ESR Output Capacitors datasheet (Rev. Y) PDF | HTML 20 Dec 2016
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Technical article Trends in building automation: connected sensors for user comfort 02 Sep 2016
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 May 2013
User guide AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A) 30 Apr 2013
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) 25 Apr 2013
White paper Engineers note: Capacitors are key to voltage regulator design 01 Jul 2002

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SOT-23 (DBV) 5 View options

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