800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag - LP38511

LP38511 (ACTIVE)

800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag

Description

The LP38511-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is specified at ±2.5% over line, load and full temperature range from -40°C to +125°C. The LP38511-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10uF ceramic capacitors, and has a fixed 1.8V output. An Error Flag feature monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. The LP38511-1.8 provides excellent transient performance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive applications such as servers, routers/switches, and base stations.

Features

  • 2.25V to 5.5V Input Voltage Range
  • 1.8V Fixed Output Voltage
  • 800 mA Output Load Current
  • +/- 2.5% VOUT Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with tiny 10 µF Ceramic Capacitors
  • 0.20% Output Voltage Load Regulation from 10 mA to 800 mA
  • Enable pin
  • Error Flag Indicates Status of Output Voltage
  • 1 µA of Quiescent Current in Shutdown
  • 40dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • DDPAK/TO-263 and PFM Surface Mount Packages

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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)
Output Capacitor Type
Additional Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LP38511
0.8    
Fixed Output    
2.25    
5.5    
1.8    
1.8    
1.8    
7.5    
260    
Ceramic    
Enable
Overcurrent Protection
Thermal Shutdown
Power Good    
Catalog    
-40 to 125    
5DDPAK/TO-263
5TO-263    
0.60 | 1ku    
WEBENCH® LP38511
    Min   Max   Range  
  Vin V    2.25 – 5.50V  
  Vout V    1.80 – 1.80V  
  Iout A    ≤ 0.8A  
  Ambient Temp °C    -40 – 125°C  
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