LP2989LV Micropower 500-mA low-noise low-dropout regulator for applications with output voltages < 2 V | TI.com

LP2989LV (ACTIVE)

Micropower 500-mA low-noise low-dropout regulator for applications with output voltages < 2 V

 

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Description

The LP2989LV is a fixed-output 500-mA precision LDO regulator designed for use with ceramic output capacitors.

Output noise can be reduced to 18 µV (typical) by connecting an external 10-nF capacitor to the bypass pin.

Using an optimized Vertically Integrated PNP (VIP) process, the LP2989LV delivers superior performance:

Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.

Sleep Mode: The LP2989LV draws less than 0.8-µA quiescent current when SHUTDOWN pin is pulled low.

ERROR Flag: The built-in ERROR flag goes low when the output drops approximately 5% below nominal.

Precision Output: Output voltage accuracy is 0.75% (A grade) and 1.25% (standard grade) at room temperature.

For output voltages greater than or equal to 2 V, see the LP2989 (SNVS083) data sheet.

Features

  • 2.1-V to 16-V Input Voltage Range
  • Ultra-Low Dropout Voltage
  • 500-mA Continuous Output Current
  • Very Low Output Noise With External Capacitor
  • < 0.8-µA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • 0.75% Output Voltage Accuracy (A Grade)
  • High Peak Current Capability (800-mA typical)
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range

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 Output capacitor type PSRR @ 100 KHz (dB) Accuracy (%) Vdo (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP2989LV Order now Fixed Output     0.5     16     2.1     1.8     1.8     1.8     SOIC | 8     Enable
Power Good    
1     -40 to 125     35     18     1.02 | 1ku     Catalog     Ceramic     32     1.6     160     0.11     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
LP2986 Order now Adjustable Output
Fixed Output    
0.2     16     2.1     5     1.23     3
3.3
5    
SOIC | 8
VSSOP | 8
WSON | 8    
Enable
Power Good    
1     -40 to 125     38     160     0.68 | 1ku     Catalog     Non-Ceramic     42     3     180     0.1     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)
See datasheet (WSON)    
LP2987 Order now Fixed Output     0.2     16     2.1     5     3     3
3.3
5    
SOIC | 8
VSSOP | 8
WSON | 8    
Enable
Power Good    
1     -40 to 125     160     100     0.76 | 1ku     Catalog     Non-Ceramic     42     2     180     0.1     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)
See datasheet (WSON)    
LP2988 Order now Fixed Output     0.2     16     2.1     5     2.7     2.7
2.8
3
3.3
3.8
5    
SOIC | 8
VSSOP | 8
WSON | 8    
Enable
Power Good    
1     -40 to 125     160     20     0.82 | 1ku     Catalog     Non-Ceramic     28     2.4     180     0.1