LP38511-ADJ

ACTIVE

800-mA, adjustable low-dropout voltage regulator with enable

Product details

Output options Adjustable Output Iout (max) (A) 0.8 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 5 Vout (min) (V) 0.5 Noise (µVrms) 25 Iq (typ) (mA) 7.5 Thermal resistance θJA (°C/W) 67 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.8 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 5 Vout (min) (V) 0.5 Noise (µVrms) 25 Iq (typ) (mA) 7.5 Thermal resistance θJA (°C/W) 67 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 250 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 3.3V
  • 800mA Output Load Current
  • ±2.0% Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with Tiny 10 uF Ceramic Capacitors
  • Enable Pin
  • Typically Less than 1uA of Ground Pin Current with Enable Pin 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 3.3V
  • 800mA Output Load Current
  • ±2.0% Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C
  • Stable with Tiny 10 uF Ceramic Capacitors
  • Enable Pin
  • Typically Less than 1uA of Ground Pin Current with Enable Pin 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 LP38511-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-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 LP38511-ADJ is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10 uF ceramic capacitors, and has an adjustable output voltage. The LP38511-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 LP38511-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-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 LP38511-ADJ is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10 uF ceramic capacitors, and has an adjustable output voltage. The LP38511-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 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator datasheet (Rev. D) 04 Apr 2013
EVM User's guide AN-1770 LP38511MR-ADJ Evaluation Board (Rev. B) 24 Apr 2013
Application note AN-1797 TO-263 THIN Package (Rev. A) 24 Apr 2013
EVM User's guide AN-1801 LP38511TJ-ADJ Evaluation Board (Rev. B) 24 Apr 2013

Design & development

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Package Pins Download
HSOIC (DDA) 8 View options
TO-263 (NDQ) 5 View options

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