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

LP3879
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
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

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order 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 PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP3879 Order now Fixed Output     0.8     6     2.5     1.2     1     1
1.2    
SO PowerPAD | 8
WSON | 8    
Enable     1     -40 to 125     40     18     0.80 | 1ku     Catalog     35     3     475     0.2     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8WSON: 16 mm2: 4 x 4 (WSON | 8)    
LP3881 Samples not available Fixed Output     0.8     5.5     1.291     1.8     1.2     1.2
1.5
1.8    
DDPAK/TO-263 | 5     Enable     1     -40 to 125     40     90     2.22 | 1ku     Catalog     45     2     75     4     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)    
LP38841 Order now Fixed Output     0.8     5.5     0.875     1.5     0.8     0.8
1.2
1.5    
DDPAK/TO-263 | 5
TO-220 | 5
TO-220 | 5    
Enable     1     -40 to 125     35     90     0.81 | 1ku     Catalog     28     3     75     32     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.47 x 10.16 (TO-220 | 5)
5TO-220: 86 mm2: 8.51 x 10.16 (TO-220 | 5)    
LP3891 Order now Fixed Output     0.8     5.5     1.3     1.8     1.2     1.2
1.5
1.8    
DDPAK/TO-263 | 5
SO PowerPAD | 8    
Enable     1     -40 to 125     40     150     1.42 | 1ku     Catalog     30     2     100     4     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)