LP38513-ADJ 3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator | TI.com

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3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator



The LP38513-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38513-ADJ uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy at 2.5% over line, load and full temperature range from -40°C to +125°C. The LP38513-ADJ is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10 μF ceramic capacitors, and has an adjustable output voltage. The LP38513-ADJ 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.


  • 2.25V to 5.5V Input Voltage Range
  • Adjustable Output Voltage Range of 0.5V to 4.5V
  • 3.0A Output Load Current
  • ±2.0% Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with tiny 10 µF ceramic capacitors
  • Enable pin
  • Typically less than 1 µA of Ground pin current when Enable pin is low
  • 25dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • TO-263 THIN 5-Pin Surface Mount Package

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  Min   Max Range
Vin  V 2.25 to 5.5V
Vout  V 0.5 to 5V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP38513-ADJ Order now Adjustable Output     3     5.5     2.25     5     0.5     TO-263 | 5     Enable     1     -40 to 125     67     25     1.00 | 1ku     Catalog     28     2     470     8     5TO-263: 142 mm2: 14.01 x 10.16 (TO-263 | 5)