S5U1284 SECOS [SeCoS Halbleitertechnologie GmbH], S5U1284 Datasheet
S5U1284
Related parts for S5U1284
S5U1284 Summary of contents
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... Elektronische Bauelemente Description The S5U1284 is 4A regulator with extremely low dropout voltage. This product is specifically designed to provide well regulated supply for applications requiring 2.8V or lower voltages from 3.3V ATX power supplies where high efficiency of the switch can be achieved without the cost and compliexity associated with switching regulator ...
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... Dropout Voltage S5U1284-ADJ (Vctrl-Vout) (fixed model) S5U1284-ADJ Dropout Voltage S5U1284-15 (Vin-Vout) S5U1284-18 S5U1284-25 S5U1284-33 S5U1284-50 Current Limit Vctrl=2.75V, Vin=2.05V, Vo=100mV, Vadj=0V Minimum Load Current Vctrl=5V, Vin=3.3V, Vadj=0V Thermal Regulation 30ms pulse Ripple Rejection Vctrl=5V, Vin=5V, S5U1284-ADJ S5U1284-15 Control Pin Current ...
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... Output Voltage Setting The S5U1284 can be programmed to any voltage in the range of 1.25V to 15.5V with the addition of R1 and R2 external resistors according to the following formula: The S5U1284-ADJ keeps a constant 1.25V between the Vsense pin and the Adj pin. By placing a resistor R1 across these two pins and connecting the Vsense and Vout pin together, a constant current flows through R1, adding to the ladj current and into the R2 resistor producing a voltage equal to the (1 ...
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... Elektronische Bauelemente Thermal Design The S5U1284-XX incorporates an internal thermal shutdown that protects the device when the junction temperature exceeds the maximum allowable junction temperatures. Although this device can operate with junction temperatures in the range of 150 : , it is recommended that the selected heat sink be chosen such that during maximum continuous load operation, the junction temperature is kept below this number ...