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LP38511-ADJ
  • LP38511-ADJ
  • LP38511-ADJ
  • LP38511-ADJ
  • LP38511-ADJ
  • LP38511-ADJ

LP38511-ADJ

ACTIVE

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

Texas Instruments LP38511-ADJ Product Info

1 April 2026 4

Parameters

Rating

Catalog

Vin (max) (V)

5.5

Vin (min) (V)

2.25

Iout (max) (A)

0.8

Output options

Adjustable Output

Vout (max) (V)

5

Vout (min) (V)

0.5

Noise (µVrms)

25

PSRR at 100 KHz (dB)

30

Iq (typ) (mA)

7.5

Features

Enable

Thermal resistance θJA (°C/W)

67

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

250

Operating temperature range (°C)

-40 to 125

Package

HSOIC (DDA)-8-29.4 mm² 4.9 x 6

Features

  • 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.

Description

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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