CS5253B-1 ONSEMI [ON Semiconductor], CS5253B-1 Datasheet
CS5253B-1
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CS5253B-1 Summary of contents
Page 1
... The CS5253B−1 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− ...
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... This current will track output current with roughly a 1:100 CONTROL ratio. The minimum value is equal to the quiescent current of the device. 4. This parameter is guaranteed by design and is not 100% production tested. CS5253B− CONTROL OUT CS5253B− POWER SENSE 124 Adjust 100 mF 124 5 ...
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... V and 0.6 V greater than the output voltage depending on the output current. The output load current of 3 supplied through this pin. V POWER V CONTROL BIAS and TSD CS5253B− 150 Test Conditions = 2 ...
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... Junction Temperature ( C) Figure 3. Reference Voltage vs Junction Temperature V CONTROL V POWER V = 2.5 V OUT C CONTROL = 0 ADJ 15 A/ms 80 A/ms Figure 5. Transient Response Comparison between CS5253−1 and CS5253B− Junction Temperature ( C) Figure 7. Adjust Pin Current vs Junction Temperature CS5253B−1 0.12 0.10 0.08 0.06 ...
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... Only Output Current vs Junction CONTROL Temperature 500 450 400 T = 120 C J 350 300 250 200 150 0.5 1.0 1.5 Output Current (A) Figure 13. V Dropout Voltage vs Output POWER Current CS5253B− − 3.0 A OUT 30 V RIPPLE = OUT ADJ 10 1 ...
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... The output can never come up unregulated. The CS5253B−1 can also be used as a single supply device with the control and power inputs tied together. In this mode, the dropout will be determined by the minimum control voltage ...
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... DESIGN GUIDELINES Remote Sense Remote sense operation can be easily obtained with the CS5253B−1 but some care must be paid to the layout and positioning of the filter capacitors around the part. The ground side of the input capacitors on the +5.0 V and +3.3 V lines and the local V − ...
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... The discharge current depends on the value of the capacitor, the output voltage, and the rate at which V the CS5253B−1 regulator, the discharge path is through a large junction and protection diodes are not usually needed. If the regulator is used with large values of output http://onsemi ...
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... QJC 2 the D PAK−5 package. For a high current regulator such as the CS5253B−1 the majority of heat is generated in the power transistor section. The value for R heatsink type, while the R package type, heatsink interface (is an insulator and thermal grease used?), and the contact area between the heatsink and the package ...
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... Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 10 PAK−5 Unit 2.5 C/W C/W ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. CS5253B−1/D ...