LP3874-ADJ 0.8A Fast Ultra Low Dropout Linear Regulators | TI.com

LP3874-ADJ (ACTIVE) 0.8A Fast Ultra Low Dropout Linear Regulators


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The LP3874-ADJ fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3874-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3874-ADJ to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 24mV at 80mA load current and 240mV at 0.8A load current.

Ground Pin Current: Typically 6mA at 0.8A load current.

Shutdown Mode: Typically 10nA quiescent current when the shutdown pin is pulled low.

Adjustable Output Voltage: The output voltage may be programmed via two external resistors.


  • Ultra Low Dropout Voltage
  • Low Ground Pin Current
  • Load Regulation of 0.04%
  • 10nA Quiescent Current in Shutdown Mode
  • Specified Output Current of 0.8A DC
  • Available in DDPAK/TO-263, TO-220 and SOT-223 Packages
  • Minimum Output Capacitor Requirements
  • Overtemperature/Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range

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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating Accuracy (%) Vdo (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP3874-ADJ Order now Adjustable Output     0.8     7     2.5     6.6     1.2     DDPAK/TO-263 | 5
SOT-223 | 5    
Enable     1     -40 to 125     60     100     1.08 | 1ku     Catalog     2     240     6     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5SOT-223: 45 mm2: 6.96 x 6.5 (SOT-223 | 5)