LP38512 Low Dropout Linear Voltage Regulator

LP38512-ADJ (Adjustable) and LP38512-1.8 (Fixed 1.8 V Output)

LP38512 - 1.5A Fast-Transient ResponseTexas Instruments' LP38512-ADJ and LP38512-1.8 fast-transient response low-dropout voltage regulators offer high-performance that meets AC and DC accuracy requirements for powering digital cores. They both use a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output voltage DC accuracy is guaranteed 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 2.5 V, 3.3 V, and 5.0 V rail is stable with 10 µF ceramic capacitors. The LP38512-ADJ has an adjustable output voltage, while the LP38512-1.8 has a fixed 1.8 V output. The LP38512-1.8 has an error flag feature that monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. Both provide 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.

LP38512-ADJ Features LP38512-1.8 Features
  • 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 100kHz
  • Over-temperature and over-current protection
  • PSOP-8 and TO263 thin surface mount packages

Applications

  • Digital Core ASICs, FPGAs, and DSPs
  • Servers
  • Routers and switches
  • Base stations
  • Storage area networks
  • DDR2 memory
  • 2.25V to 5.5V input voltage range
  • 1.8V fixed output voltage
  • 1.5A output load current
  • ±2.5% accuracy over line, load, and full-temperature range from -40°C to +125°C
  • Stable with tiny 10 µF ceramic capacitors
  • 0.20% output voltage load regulation from 10 mA to 1.5A
  • Enable pin
  • Error flag indicates status of output voltage
  • 1µA of quiescent current in shutdown
  • 40dB of PSRR at 100kHz
  • Over-temperature and over-current protection
  • TO-263 and TO-263 thin surface mount packages

Applications

  • Digital core ASICs, FPGAs, and DSPs
  • Servers
  • Routers and switches
  • Base stations
  • Storage area networks
  • DDR2 memory

Adjustable

ImageManufacturer Part NumberDescriptionAvailable Quantity
LP38512MR-ADJ/NOPB datasheet linkIC REG LDO ADJ 1.5A 8SOPWRPADLP38512MR-ADJ/NOPBIC REG LDO ADJ 1.5A 8SOPWRPAD478 - Immediate
9975 - Factory Stock
LP38512MR-ADJ/NOPB product page link
LP38512TJ-ADJ/NOPB datasheet linkIC REG LDO ADJ 1.5A 5PFMLP38512TJ-ADJ/NOPBIC REG LDO ADJ 1.5A 5PFM999 - Immediate
10000 - Factory Stock
LP38512TJ-ADJ/NOPB product page link

Fixed

ImageManufacturer Part NumberDescriptionAvailable Quantity
LP38512TS-1.8/NOPB datasheet linkIC REG LDO 1.8V 1.5A TO263-5LP38512TS-1.8/NOPBIC REG LDO 1.8V 1.5A TO263-5638 - Immediate
LP38512TS-1.8/NOPB product page link
Published: 2013-07-02