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CS52510-1

10 A LDO 5−Pin Adjustable Linear Regulator

ON Semiconductor 

CS52510−1

10 A LDO 5−Pin Adjustable

Linear Regulator

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,

this device 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.

It is supplied in a five−terminal TO−220 package, which allows for

the implementation of a remote−sense 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 1.0 mV for

an output voltage of 2.5 V with a load step of 10 mA to 10 A.

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 “bust−proof” operation,

similar to three−terminal regulators. This circuitry, 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 2.0−2.5 V low

voltage supply on a motherboard where both 5.0 V and 3.3 V are

already available.

Features

• 1.25 V to 5.0 V VOUT at 10 A

• VPOWER Dropout < 0.65 V @ 10 A

• VCONTROL Dropout < 1.25 V @ 10 A

• 1.5% Trimmed Reference

• Fast Transient Response

• Remote Voltage Sensing

• Thermal Shutdown

• Current Limit

• Short Circuit Protection

• Backwards Compatible with 3−Pin Regulators

http://onsemi.com

1

5

TO−220

FIVE LEAD

T SUFFIX

CASE 314D

Tab = VOUT

Pin 1. VSENSE

2. Adjust

3. VOUT

4. VCONTROL

5. VPOWER

MARKING DIAGRAM

CS52510−1

AWLYWW

1

A

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

ORDERING INFORMATION

Device

CS52510−1GT5

Package

TO−220

FIVE LEAD

Shipping

50 Units/Rail

© Semiconductor Components Industries, LLC, 2006

1

September, 2006 − Rev. 6

Publication Order Number:

CS52510−1/D

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