LP3879 Micropower 800mA Low Noise 'Ceramic Stable' Adjustable Voltage Regulator for Low Voltage App. | TI.com

LP3879 (ACTIVE)

Micropower 800mA Low Noise 'Ceramic Stable' Adjustable Voltage Regulator for Low Voltage App.

 

Recommended alternative parts

  • LP3878-ADJ  -  Adjustable Voltage For 1V To 5V Applications
  • 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 LP3879 is a 800 mA fixed-output voltage regulator designed to provide high performance and low noise in applications requiring output voltages between 1.0V and 1.2V.

Using an optimized VIP (Vertically Integrated PNP) process, the LP3879 delivers superior performance:

Ground Pin Current: Typically 5.5 mA @ 800 mA load, and 200 µA @ 100 µA load.

Low Power Shutdown: The LP3879 draws less than 10 μA quiescent current when 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 10 nF bypass capacitor.

Features

  • Standard Output Voltage: 1.00V, 1.20V
  • Custom Voltages Available from 1.0V to 1.2V (50 mV Increments)
  • Input Voltage: 2.5 to 6V
  • 1% Initial Output Accuracy
  • Designed for Use with Low ESR Ceramic Capacitors
  • Very Low Output Noise
  • Sense Option Improves Load Regulation
  • 8-Lead SO PowerPad and WSON Surface Mount Packages
  • <10 μA Quiescent Current in Shutdown
  • Low Ground Pin Current at all Loads
  • High Peak Current Capability
  • Over-Temperature/Over-Current Protection
  • -40°C to +125°C Junction Temperature Range

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Parametrics Compare all products in Linear regulators (LDO)

 
Output options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Fixed output options (V)
Package Group
Features
Regulated outputs (#)
Operating temperature range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. price (US$)
Rating
Output capacitor type
PSRR @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
LP3879 LP3881 LP38841 LP3891
Fixed Output     Fixed Output     Fixed Output     Fixed Output    
0.8     0.8     0.8     0.8    
6     5.5     5.5     5.5    
2.5     1.291     0.875     1.3    
1.2     1.8     1.5     1.8    
1     1.2     0.8     1.2    
1
1.2    
1.2
1.5
1.8    
0.8
1.2
1.5    
1.2
1.5
1.8    
SO PowerPAD | 8
WSON | 8    
DDPAK/TO-263 | 5     DDPAK/TO-263 | 5
TO-220 | 5    
DDPAK/TO-263 | 5
SO PowerPAD | 8    
Enable     Enable     Enable     Enable    
1     1     1     1    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
40     40     35     40    
18     90     90     150    
0.80 | 1ku     2.22 | 1ku     0.81 | 1ku     1.42 | 1ku    
Catalog     Catalog     Catalog     Catalog    
Ceramic     Non-Ceramic     Ceramic     Non-Ceramic    
35     45     28     30    
3     2     3     2    
475     75     75     100    
0.2     4     32     4    
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
See datasheet (WSON)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)