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
Thermal Shutdown
Power Good    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
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    
8PDIP
8SOIC
8VSSOP
8WSON    
3TO-252
6WSON    
6WSON     5SOT-223
6WSON    
6WSON     4DSBGA
6WSON    
0.80 | 1ku     0.25 | 1ku     0.50 | 1ku     0.65 | 1ku     0.50 | 1ku     0.62 | 1ku     0.20 | 1ku    
New! Interactive Design
Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.
Loading Data Loading...
WEBENCH® LP3878-ADJ
    Min   Max   Range  
  Vin V 2.5 to 16.0V  
  Vout V 1.0 to 5.5V  
  Iout A ≤ 0.8A  
  Ambient Temp °C -40 to 125°C  
Footprint BOM Cost Efficiency
 
   
Explore Now
What are WEBENCH® tools?
Click Here