US3018CW ETC-unknow, US3018CW Datasheet
US3018CW
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US3018CW Summary of contents
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... OVP circuitry for both switcher out- puts and an internal thermal shutdown. US3018 SWITCHER1 CONTROL LINEAR LINEAR CONTROL REGULATOR Device Package US3018CW 24 pin Plastic SOIC WB US3018 PRELIMINARY DATASHEET Vout1 Vout2 3018app3-1.1 4-1 ...
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US3018 ABSOLUTE MAXIMUM RATINGS ABSOLUTE MAXIMUM RATINGS V5 supply Voltage ........................................... 7V V12 Supply Voltage ............................................ 20V Storage Temperature Range ................................. -65 TO 150 C Operating Junction Temperature Range .......... 0 TO 125 C PACKAGE INFORMATION PACKAGE INFORMATION 24 PIN ...
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Error Comparator Section Input bias current Input Offset Voltage Delay to Output Current Limit Section C.S Threshold Set Current C.S Comp Offset Voltage Hiccup Duty Cycle Output Drivers Section Rise Time Fall Time Dead band Time Between High side and ...
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US3018 Enable Section En pin input LO voltage Venl En pin input HI voltage Venh En pin input LO current En pin input HI current ...
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Pin Description PIN# PIN SYMBOL 19 VSEN1 This pin is internally connected to the undervoltage and overvoltage comparators sensing the Vcore status. It must be connected directly to the Vcore supply. 12 VIN2 This pin is the input that provides ...
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US3018 BLOCK DIAGRAM BLOCK DIAGRAM En Enable V12 UVLO V5 Vset VID0 VID1 5Bit VID2 DAC VID3 VID4 Vsen1 Fb3 V12 Gate3 1.26V Vin2 V5 Vout2 Fb2 PGood Figure 1 - Simplified block diagram of the US3018 4-6 4.3V Over ...
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TYPICAL APPLICATION TYPICAL APPLICATION 12V 3. Vout3 1.5V C17 Vout4 2.5V C18 Figure 2 - Typical application of US3018 for an on board DC-DC converter providing power for the Vcore , GTL+ & ...
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US3018 US3018 Application Parts List Ref Desig Description Q2 MOSFET Q3 MOSFET Q4 MOSFET with Schottky L1 Inductor L3 Inductor C1,17 Capacitor, Electrolytic C2 Capacitor, Electrolytic C3 Capacitor, Electrolytic C8 Capacitor, Ceramic C9,15,19 Capacitor, Ceramic C10 Capacitor, Ceramic C13 Capacitor, ...
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TYPICAL APPLICATION TYPICAL APPLICATION (Dual Layout with HIP6018) R22 12V R11 3. Vout3 1.5V C17 Vout4 2.5V C18 Figure 3 - Typical application of US3018 in a dual layout with HIP6018 for an ...
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US3018 US3018 Application Parts List Dual Layout with HIP6018 Ref Desig Description Q2 MOSFET Q3 MOSFET Q4 MOSFET with Schottky L1 Inductor L3 Inductor C1,17 Capacitor, Electrolytic C2 Capacitor, Electrolytic C3 Capacitor, Electrolytic C8 Capacitor, Ceramic C9,15,19 Capacitor, Ceramic C10 ...
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Application Information Application Information An example of how to calculate the components for the application circuit is given below. Assuming, two set of output conditions that this regula- tor must meet for Vcore : a) Vo=2.8V , Io=14.2A, Vo=185mV, Io=14.2A ...
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US3018 However if the inductor is too small , the output ripple current and ripple voltage become too large. One solu- tion to bring the ripple current down is to increase the switching frequency , however that will be at ...
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Following the same procedure for the Schottcky diode results in a heatsink with C/W. Although it is possible to select a slightly smaller heatsink, for sim- plicity the same heatsink as the one for the high side ...
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US3018 regulation point when transitioninig from light load to full load and vice versa. To account for the DC drop, the output of the regulator is typically set about half the DC drop that results from light load to full ...
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Place the 2.5V output capacitor, C18 close to the pin13 of the IC and the 1.5V output capacitor, C17 close to the Q2 MOSFET. Note better to place the 1.5V linear regulator components close to the 3018 ...
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US3018 TYPICAL APPLICATION TYPICAL APPLICATION (Dual Layout with HIP6016) 12V ATX S.D. * R20 * The components with Asterisks can be eliminated If Fault pin is not used. 3. Vout3 1.5V ...
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US3018 Application Parts List Dual Layout with HIP6016 Ref Desig Description Q3,4 MOSFET Q5 MOSFET MOSFET L1 Inductor L3 Inductor C16 Capacitor ,Electrolytic C14 Capacitor ,Electrolytic C3 Capacitor ,Electrolytic C18 Capacitor ,Electrolytic C17,C1 Capacitor ,Electrolytic C2 Capacitor ,Electrolytic ...