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3A Fast Ultra Low Dropout Linear Regulator


Package | PIN: NDH | 5
Temp: Q (-40 to 125)
Carrier: Partial Tube
Qty Price
1-9 $6.13
10-24 $5.52
25-99 $5.15
100-249 $4.62
250-499 $4.31
500-749 $3.75
750-999 $3.25
1000+ $3.18


  • Ultra Low Dropout Voltage
  • Stable with Selected Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.08%
  • 10nA Quiescent Current in Shutdown Mode
  • Specified Output Current of 3A DC
  • Available in DDPAK/TO-263 and TO-220 Packages
  • Overtemperature/Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range

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Texas Instruments  LP3856ET-ADJ/NOPB

The LP3856-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 LP3856-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3856-ADJ to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 39mV at 300mA load current and 390mV at 3A load current.

Ground Pin Current: Typically 4mA at 3A 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.