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LP38512-ADJ

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1.5-A, adjustable ultra-low-dropout voltage regulator with low noise & enable

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Data sheet

LP38512-ADJ

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 5 Vout (min) (V) 0.5 Rating Catalog Noise (µVrms) 25 PSRR at 100 KHz (dB) 28 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 5 Vout (min) (V) 0.5 Rating Catalog Noise (µVrms) 25 PSRR at 100 KHz (dB) 28 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 TO-263 (NDQ) 5 142.3416 mm² 10.16 x 14.01
  • 2.25V to 5.5V Input Voltage Range
  • Adjustable Output Voltage Range of 0.5V to 4.5V
  • 1.5A 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 1µA of Ground Pin Current in when Enable Pin is Low
  • 25dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • 8-Pin SO PowerPad and 5-Pin PFM Surface Mount Packages

All trademarks are the property of their respective owners.

  • 2.25V to 5.5V Input Voltage Range
  • Adjustable Output Voltage Range of 0.5V to 4.5V
  • 1.5A 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 1µA of Ground Pin Current in when Enable Pin is Low
  • 25dB of PSRR at 100 kHz
  • Over-Temperature and Over-Current Protection
  • 8-Pin SO PowerPad and 5-Pin PFM Surface Mount Packages

All trademarks are the property of their respective owners.

The LP38512-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38512-ADJ 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 LP38512-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 LP38512-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.

The LP38512-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38512-ADJ 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 LP38512-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 LP38512-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.
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Technical documentation

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Type Title Date
* Data sheet 1.5A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator datasheet (Rev. D) 04 Apr 2013
Application note AN-1797 TO-263 THIN Package (Rev. A) 24 Apr 2013
EVM User's guide AN-1802 LP38512TJ-ADJ Evaluation Board (Rev. B) 24 Apr 2013
EVM User's guide AN-1859 LP38512MR-ADJ Evaluation Board (Rev. B) 24 Apr 2013

Design & development

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Evaluation board

MLTLDO2EVM-037 — Universal LDO linear voltage regulator evaluation module for DCY, DDA and KVU packages

The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU, (...)

User guide: PDF
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Package Pins CAD symbols, footprints & 3D models
HSOIC (DDA) 8 Ultra Librarian
TO-263 (NDQ) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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