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 LP3879 LP3881 LP38841 LP3891 LP3990 LP3990-Q1
0.8     0.8     0.8     0.8     0.8     0.15     0.15    
Adjustable Output     Fixed Output     Fixed Output     Fixed Output     Fixed Output     Fixed Output     Fixed Output    
2.5     2.5     1.291     0.875     1.3     2     2    
16     6     5.5     5.5     5.5     6     6    
  1
1.2    
1.2
1.5
1.8    
0.8
1.2
1.5    
1.2
1.5
1.8    
0.8
1.2
1.35
1.5
1.8
2.5
2.8
3.3    
1.2
1.8
2.8    
1     1     1.2     0.8     1.2     0.8      
5.5     1.2     1.8     1.5     1.8     3.3      
5.5     0.2     4     32     4     0.043     0.043    
475     475     75     75     100     120     120    
3     3     2.5         2.5     2.5    
          150     150    
35               35    
Ceramic         Ceramic       Ceramic     Ceramic    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Automotive    
    -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
8SO PowerPAD
8WSON    
8SO PowerPAD
8WSON    
5DDPAK/TO-263     5DDPAK/TO-263
5TO-220    
5DDPAK/TO-263
8SO PowerPAD    
4DSBGA
5SOT-23
6WSON    
4DSBGA    
0.80 | 1ku     0.70 | 1ku     1.95 | 1ku     0.71 | 1ku     1.25 | 1ku     0.20 | 1ku     0.23 | 1ku    
WEBENCH® LP3878-ADJ
    Min   Max   Range  
  Vin V    2.50 – 16.00V  
  Vout V    1.00 – 5.50V  
  Iout A    ≤ 0.8A  
  Ambient Temp °C    -40 – 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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