Ultra Low Noise, 150mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor - LP5900

LP5900 (ACTIVE)

Ultra Low Noise, 150mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor

Recommended alternative parts

  • LP5907  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   Next generation device with the same functionality.

Description

The LP5900 is a linear regulator capable of supplying 150-mA output current. Designed to meet the requirements of RF/Analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass capacitor.

The device is designed to work with 0.47-µF input and output ceramic capacitors (no bypass capacitor required).

The device is available in a DSBGA (YZR) package and a WSON package; also available in an extremely thin DSBGA (YPF) package. For all other package options, contact your local Texas Instruments sales office.

This device is available with 1.5-V, 1.575-V, 1.8-V, 1.9-V, 2-V, 2.1-V, 2.2-V, 2.3-V, 2.5-V, 2.6-V, 2.65-V, 2.7-V, 2.75-V 2.8-V, 2.85-V 3-V, 3.3-V and 4.5-V outputs. Please contact your local sales office for any other voltage options.

Features

  • Input Voltage Range, 2.5 V to 5.5 V
  • Output Voltage Range, 1.5 V to 4.5 V
  • Stable with 0.47-µF Ceramic Input and Output
    Capacitors
  • No Noise Bypass Capacitor Required
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • −40°C to 125°C Junction Temperature Range for
    Operation
  • Output Current, 150 mA
  • Low Output Voltage Noise, 6.5 µVRMS
  • PSRR, 75 dB at 1 kHz
  • Output Voltage Tolerance, ±2%
  • Virturally Zero IQ (Disabled), < 1 µA
  • Very Low IQ (Enabled), 25 µA
  • Start-up Time, 150 µs
  • Low Dropout, 80 mV Typ.

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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$)
LP5900 LP2951-N LP38691 LP38691-Q1 LP38693 LP38693-Q1 LP3878-ADJ
0.15     0.1     0.5     0.5     0.5     0.5     0.8    
Fixed Output     Adjustable Output
Fixed Output    
Fixed Output     Fixed Output     Fixed Output     Fixed Output     Adjustable Output    
2.5     -0.3     2.7     2.7     2.7     2.7     2.5    
5.5     30     10     10     10     10     16    
1.5
2.8
3.3
4.5    
3
3.3
5    
1.8
2.5
3.3
5    
1.8
2.5
3.3
5    
1.8
2.5
3.3
5    
1.8
2.5
3.3
5    
 
1.5     1.24     1.8     1.8     1.8     1.8     1    
4.5     29     5     5     5     5     5.5    
0.025     0.075     0.055     0.055     0.055     0.055     5.5    
80     380     250
330
430    
250
330
430    
250
330
430    
250
330
430    
475    
2     1.4     4     4     4     4     3    
6.5     160              
40     51     50     50     50     50     35    
Ceramic     Ceramic     Ceramic       Ceramic       Ceramic    
Enable
Overcurrent Protection
Thermal Shutdown    
Enable
Overcurrent Protection
Thermal Shutdown
Power Good    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown
Foldback Overcurrent Protection    
Enable
Overcurrent Protection
Thermal Shutdown    
Catalog     Catalog     Catalog     Automotive     Catalog     Automotive     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125      
4DSBGA
6WSON    
8PDIP
8SOIC
8VSSOP
8WSON    
3TO-252
6WSON    
6WSON     5SOT-223
6WSON    
6WSON     8SO PowerPAD
8WSON    
0.20 | 1ku     0.25 | 1ku     0.50 | 1ku     0.65 | 1ku     0.50 | 1ku     0.62 | 1ku     0.80 | 1ku    
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WEBENCH® LP5900
    Min   Max   Range  
  Vin V 2.5 to 5.5V  
  Vout V 1.5 to 4.5V  
  Iout A ≤ 0.15A  
  Ambient Temp °C -40 to 125°C  
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