LP38513 3A Fast Response Ultra Low Dropout Linear Regulator | TI.com

LP38513 (ACTIVE)

3A Fast Response Ultra Low Dropout Linear Regulator

 

Description

The LP38513 fast-response ultra-low dropout linear regulator operates from a 2.25-V to 5.5-V input supply. This device responds very quickly to step changes in line or load conditions, making it suitable for low-voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent-current operation independent of the output load current. Ground Pin Current: Typically 12 mA at 3-A load current.Disable Mode: Typically 60 µA quiescent current when the enable (EN) pin is pulled low.ERROR Flag: The ERROR flag goes low if VOUT falls more than typically 15% below the nominal value.Precision Output Voltage: A specified VOUT accuracy of ±2.6% with TJ from 0°C to 125°C.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • Input Supply Voltage 2.25 V to 5.5 V
  • Conversions from 2.5-V Rail to 1.8-V Rail
  • Stable with Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.1% for 10 mA to 3-A Load Current
  • 60-μA Typical Quiescent Current in Shutdown Mode
  • Specified Output Current of 3 A
  • Specified VOUT Accuracy of ±2.6% With
    TJ from 0°C to +125°C
  • ERROR Flag Indicates VOUT Status
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Operating TJ Range

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Parametrics Compare all products in Linear regulators (LDO)

 
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)
LP38513
Fixed Output    
3    
5.5    
2.25    
1.8    
1.8    
1.8    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
1    
-40 to 125    
32    
45    
1.14 | 1ku    
Catalog    
Ceramic    
29    
2    
425    
10    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    

Design tool

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WEBENCH® Designer LP38513

  Min   Max Range
Vin  V 2.25 to 5.5V
Vout  V 1.8 to 1.8V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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