CS52510-1

 1.25V to 5V VOUT at 10A
  VPOWER Dropout < 0.65V @ 10A
  VCONTROL Dropout < 1.25V @ 10A
  1.5% Trimmed Reference
  Fast Transient Response
  Remote Voltage Sensing
  Thermal Shutdown
  Current Limit
  Short Circuit Protection
  Backwards Compatible with 3-pin Regulators

VPOWER Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
VCONTROL Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13V
Operating Junction Temperature Range . . . . . . . . . . . . . .. . 0¡C T_J 150¡C
Storage Temperature Range . . . . . . . . . . . . . . . . . .. . . .. . . -65¡C to +150¡C
Lead Temperature Soldering
    Wave Solder (through hole styles only) . .. . . .  . 10 sec. max, 260¡C peak
ESD Damage Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV

This new very low dropout regulator is designed to power the next generation of advanced microprocessor. To achieve very low dropout, the internal pass transistor is powered separately from the control circuitry. Furthermore, with the control and power inputs tied together, CS52510-1 can be used in single supply configuration and still offer a better dropout voltage than conventional PNP-NPN based LDO regulators. In this mode the dropout is determined by the minimum control voltage.

CS52510-1 is supplied in a five-terminal TO-220 package, which allows for the implementation of a remotesense pin permitting very accurate regulation of output voltage directly at the load, where it counts, rather than at the regulator. This remote sensing feature virtually eliminates output voltage variations due to load changes and resistive voltage drops. Typical load regulation measured at the sense pin is 1mV for an output voltage of 2.5V with a load step of 10mA to 10A.

The very fast transient loop response easily meets the needs of the latest microprocessors. In addition, a small capacitor on the Adjust pin will further improve the transient capabilities.

Internal protection circuitry provides for Òbust-proofÓ operation, similar to three-terminal regulators. This circuitry, CS52510-1, which includes overcurrent, short circuit, supply sequencing and overtemperature protection, will self protect the regulator under all fault conditions.

The CS52510-1 is ideal for generating a secondary 2 - 2.5V low voltage supply on a motherboard where
both 5V and 3.3V are already available.