Micropower 800mA Low Noise 'Ceramic Stable' Adjustable Voltage Regulator for 1V to 5V App. - LP3878-ADJ

LP3878-ADJ (ACTIVE)

Micropower 800mA Low Noise 'Ceramic Stable' Adjustable Voltage Regulator for 1V to 5V App.

 

Recommended alternative parts

  • LP3879  -  Fixed Versions 1.0V And 1.2V
  • LP3881  -  Vin Down To 1.3V, Vout Down To 1.2V
  • LP38841  -  Vin Down To 1.05V, Vout Down To 0.56V
  • LP3891  -  Vin Down To 1.6V, Vout Down To 1.2V

Description

The LP3878-ADJ is an 800-mA, adjustable output, voltage regulator designed to provide high performance and low noise in applications requiring output voltages as low as 1 V.

Using an optimized VIP (Vertically Integrated PNP) process, the LP3878-ADJ delivers superior performance:

  • Ground Pin Current: Typically 5.5 mA at 800-mA load, and 180 µA at 100-µA load.
  • Low Power Shutdown: The LP3878-ADJ draws less than 10-µA quiescent current when the SHUTDOWN pin is pulled low.
  • Precision Output: Ensured output voltage accuracy is 1% at room temperature.
  • Low Noise: Broadband output noise is only 18 µV (typical) with a 10-nF bypass capacitor.

Features

  • Input Supply Voltage: 2.5 V to 16V
  • Output Voltage Range: 1 V to 5.5 V
  • Designed for Use With Low-ESR Ceramic
    Capacitors
  • Very Low Output Noise
  • 8-Lead SO PowerPAD and WSON Surface-
    Mount Packages
  • < 10-µA Quiescent Current in Shutdown
  • Low Ground Pin Current at all Loads
  • Overtemperature and Overcurrent Protection
  • –40°C to 125°C Operating Junction Temperature
    Range

View more

Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Additional Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LP3878-ADJ LP2951-N LP38691 LP38691-Q1 LP38693 LP38693-Q1 LP5900
0.8    0.1    0.5    0.5    0.5    0.5    0.15   
Adjustable Output    Adjustable Output
Fixed Output   
Fixed Output    Fixed Output    Fixed Output    Fixed Output    Fixed Output   
2.5    -0.3    2.7    2.7    2.7    2.7    2.5   
16    30    10    10    10    10    5.5   
  3
3.3
5   
1.8
2.5
3.3
5   
1.8
2.5
3.3
5   
1.8
2.5
3.3
5   
1.8
2.5
3.3
5   
1.5
1.575
1.8
1.9
2
2.1
2.2
2.3
2.5
2.6
2.65
2.7
2.75
2.8
2.85
3.0
3.3
4.5   
1    1.24    1.8    1.8    1.8    1.8    1.5   
5.5    29    5    5    5    5    4.5   
5.5    0.075    0.055    0.055    0.055    0.055    0.025   
475    380    250
330
430   
250
330
430   
250
330
430   
250
330
430   
80   
3    1.4    4    4    4    4    2   
  160            6.5   
35    51    50    50    50    50    40   
Ceramic    Ceramic    Ceramic      Ceramic      Ceramic   
Enable
Overcurrent Protection
Thermal Shutdown   
Enable
Overcurrent Protection
Power Good
Thermal Shutdown   
Enable
Foldback Overcurrent Protection
Overcurrent Protection
Thermal Shutdown   
Enable
Foldback Overcurrent Protection
Overcurrent Protection
Thermal Shutdown   
Enable
Foldback Overcurrent Protection
Overcurrent Protection
Thermal Shutdown   
Enable
Foldback Overcurrent Protection
Overcurrent Protection
Thermal Shutdown   
Enable
Overcurrent Protection
Thermal Shutdown   
Catalog    Catalog    Catalog    Automotive    Catalog    Automotive    Catalog   
  -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
8SO PowerPAD
8WSON   
8SOIC
8VSSOP
8WSON
8PDIP   
6WSON
3TO-252   
6WSON    6WSON
5SOT-223   
6WSON    4DSBGA
6WSON   
0.80 | 1ku    0.25 | 1ku    0.50 | 1ku    0.65 | 1ku    0.50 | 1ku    0.62 | 1ku    0.20 | 1ku   

WEBENCH® Designer LP3878-ADJ

  Min   Max Range
Vin  V 2.5 to 16.0V
Product Option
Vout  V
Iout  A ≤ 0.8A
Ambient Temp  °C -40.0 to 125.0°C