LP3999 Low Noise 150mA Voltage Regulator for RF/Analog Applications. | TI.com

LP3999 (ACTIVE) Low Noise 150mA Voltage Regulator for RF/Analog Applications.

 

Description

The LP3999 regulator is designed to meet the requirements of portable wireless battery-powered applications and will provide an accurate output voltage with low noise and low quiescent current. Ideally suited for powering RF/Analog devices this device will also be used to meet more general circuit requirements.

For battery powered applications the low dropout and low ground current provided by the device allows the lifetime of the battery to be maximized.The inclusion of an Enable(disable) control can be used by the system to further extend the battery lifetime by reducing the power consumption to virtually zero. Should the application require a device with an active disable function please refer to device LP3995.

The LP3999 also features internal protection against short-circuit currents and over-temperature conditions.

The LP3999 is designed to be stable with small 1.0 µF ceramic capacitors. The small outline of the LP3999 DSBGA package with the required ceramic capacitors can realize a system application within minimal board area.

Performance is specified for a −40°C to +125°C temperature range.

The device is available in DSBGA package. For other package options contact your local TI sales office.

The device is available in fixed output voltages in the ranges of 1.5V to 3.3V. For availability, please contact your local TI sales office.

Features

  • 5 pin DSBGA Package
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turn-on
  • Thermal-overload and short-circuit protection
  • −40 to +125°C junction temperature range for operation

Key Specifications

  • 2.5V to 6.0V Input Range
  • Accurate Output Voltage; ±75mV / 2%
  • 60 mV Typical Dropout with 150 mA Load. Vout > 2.5V
  • Virtually Zero Quiescent Current when Disabled
  • 10 μVrms Output Noise Over 10Hz to 100kHz
  • Stable with a 1 μF Output Capacitor
  • Ensured 150 mA Output Current
  • Fast Turn-on Time; 140 μs (Typ.)

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Parametrics

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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)
LP3999 Order now Fixed Output     0.15     6     2.5     3.3     1.5     1.5
1.8
2.4
2.5
2.8
3.3    
DSBGA | 5     Enable     1     -40 to 125     255     10     0.32 | 1ku     Catalog     Ceramic     25     3     60     0.085     See datasheet (DSBGA)    
LP3985 Order now Fixed Output     0.15     6     2.5     5     2.5     2.5
2.6
2.7
2.8
2.85
2.9
3
3.1
3.2
3.3
4.7
4.75
4.8
5    
DSBGA | 5
SOT-23 | 5    
Enable     1     -40 to 125     220     30     0.19 | 1ku     Catalog     Ceramic     42     2     60     0.085     See datasheet (DSBGA)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP3995 Order now Fixed Output     0.15     6     2.5     3     1.9     1.5
1.8
1.9
2.5
2.8
3    
DSBGA | 5
WSON | 6    
Enable     1     -40 to 125     69     25     0.23 | 1ku     Catalog     Ceramic     32     3     60     0.085     See datasheet (DSBGA)
See datasheet (WSON)