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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 0.05 Vin (Max) (V) 16 Vin (Min) (V) 3.12 Vout (Max) (V) 5 Vout (Min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (uVrms) 30 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 176 Load capacitance (Min) (µF) 2.2 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 2.3 PSRR @ 100 KHz (dB) 38 Dropout voltage (Vdo) (Typ) (mV) 120 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Linear regulators (LDO)

Features

  • 2.1-V to 16-V Input Voltage
  • Ultra-Low-Dropout Voltage
  • Ensured 50-mA Output Current
  • Typical Dropout Voltage 180 mV at 80 mA
  • Requires Minimum External Components
  • < 1 μA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • Output Voltage Accuracy 1% (A Grade)
  • High Peak Current Capability (150 mA Typical)
  • Wide Supply Voltage Range (16 V Maximum)
  • Low ZOUT 0.3 Ω Typical (10 Hz to 1 MHz)
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range
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Description

The LP2982 is a 50-mA, fixed-output voltage LDO designed to provide ultra-low dropout and lower noise in battery-powered applications.

Using an optimized vertically integrated PNP (VIP) process, the LP2982 delivers unequaled performance in all specifications critical to battery-powered designs:

Dropout Voltage: Typically 120 mV at 50 mA load, and 7 mV at 1 mA load.

Ground Pin Current: Typically 375 μA at 50 mA load, and 80 μA at 1 mA load.

Sleep Mode: Less than 1-μA quiescent current when ON/OFF pin is pulled low.

Precision Output: 1% tolerance output voltages available (A grade).

Low Noise: By adding an external bypass capacitor, output noise can be reduced to 30 μV (typical).

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet LP2982 50-mA Micropower Ultra-Low-Dropout LDO in SOT-23 Package datasheet (Rev. K) Jun. 09, 2016
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) Apr. 25, 2013
Application note AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) Apr. 23, 2013
White paper Engineers note: Capacitors are key to voltage regulator design Jul. 01, 2002

Design & development

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

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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  • Ongoing reliability monitoring

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