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CS5253B-8 Fiches technique(PDF) 1 Page - ON Semiconductor |
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CS5253B-8 Fiches technique(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2004 June, 2004 − Rev. 5 1 Publication Order Number: CS5253B−8/D CS5253B−8 3.0 A LDO 5−Pin 2.5 V Fixed Linear Regulator for Remote Sense Applications This new very low dropout linear regulator reduces total power dissipation in the application. 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. The CS5253B−8 is offered in a five−terminal D2PAK−5 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 less than 1.0 mV for an output voltage of 2.5 V with a load step of 10 mA to 3.0 A. The CS5253B−8 has a very fast transient loop response. Internal protection circuitry provides for “bust−proof” operation, similar to three−terminal regulators. This circuitry, which includes overcurrent, short circuit, and overtemperature protection will self protect the regulator under all fault conditions. The CS5253B−8 is ideal for generating a 2.5 V supply to power graphics controllers used on VGA cards. Its remote sense and low value capacitance requirements make this a low cost high performance solution. The CS5253B−8 is optimized from the CS5253−1 to allow a lower value of output capacitor to be used at the expense of a slower transient response. Features • Pb−Free Package is Available* • V OUT Fixed @ 2.5 V ± 1.5% • V POWER Dropout < 0.40 V @ 3.0 A • V CONTROL Dropout < 1.05 V @ 3.0 A • 1.5% Trimmed Reference • Fast Transient Response • Remote Voltage Sensing • Thermal Shutdown • Current Limit • Short Circuit Protection • Drop−In Replacement for EZ1582 • Backwards Compatible with 3−Pin Regulators • Very Low Dropout Reduces Total Power Consumption *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MARKING DIAGRAM A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week Tab = VOUT Pin 1. VSENSE 2. GND 3. VOUT 4. VCONTROL 5. VPOWER D2PAK−5 DP SUFFIX CASE 936AC 1 5 CS 5253B−8 AWLYWW 1 http://onsemi.com CS5253B−8GDP5 D2PAK−5 50 Units/Rail CS5253B−8GDPR5 D2PAK−5 750 Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Device Package Shipping† ORDERING INFORMATION CS5253B−8GDPR5G D2PAK−5 (Pb−Free) 750 Tape & Reel |
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