SC1548CSK-1.5TRT Semtech, SC1548CSK-1.5TRT Datasheet
SC1548CSK-1.5TRT
Specifications of SC1548CSK-1.5TRT
Related parts for SC1548CSK-1.5TRT
SC1548CSK-1.5TRT Summary of contents
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... Over current protection 5-pin SOT-23 package Applications Motherboards Graphics cards Microcontrollers Simple power supplies Q1 IRL530N 100uF 22uF Q1 IRL530N 100uF 22uF 1 SC1548 Linear FET Controller 3.3V IN 12V SNS EN ENABLE 2 GND 3 4 DRV IN SC1548CSK-1.8 C4 0.1uF 3.3V IN 12V ADJ EN ENABLE 2 GND 3 4 DRV IN SC1548CSK C4 0.1uF www.semtech.com ...
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... Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device reliability Electrical Characteristics (1) Unless specified 25° 12V PWR 2004 Semtech Corp 3.3V 0A. Values in bold apply over full operating temperature range. OUT SC1548 www.semtech.com ° ° ° C ° C ° C ° µ µ A µ ...
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... V = 12V PWR Notes: (1) This device is ESD sensitive. Use of standard ESD handling precautions is required. (2) See Application Circuit on page 1. (3) See Timing Diagram on page 4. (4) Connected to FET drain. 2004 Semtech Corp. (1) = 3.3V 0A. Values in bold apply over full operating temperature range. OUT SC1548 ...
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... POWER MANAGEMENT Timing Diagram 2004 Semtech Corp. 4 SC1548 www.semtech.com ...
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... 2004 Semtech Corp. Ordering Information Notes: (1) Where -X.X denotes voltage options. Available voltages are: 1.515V (-1.5) and 1.818V (-1.8). Leave blank for adjustable version. (2) Only available in tape and reel packaging. A reel contains 3000 units. (3) Lead free product. This product is fully WEEE and RoHS compliant ...
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... T (°C) J Enable Pin Current vs. Junction Temperature 150 V = 12V 125 100 (°C) J 2004 Semtech Corp. 9.0 8.5 8.0 7.5 7.0 6.5 6.0 75 100 125 0 500 V IN 450 V EN 400 350 300 250 200 150 100 100 125 0 1000 ...
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... T (°C) J Drive Output Voltage vs. Junction Temperature 12. 12V SNS 11. 0mA DRV 11.00 10.50 10.00 9.50 9. (°C) J OCP Trip Threshold (SC1548CSK-1.8) vs. Junction Temperature 1 12V 3. 0.8 0.6 0.4 0 (°C) J 2004 Semtech Corp. (1) 125 V IN 120 115 SNS 110 105 100 95 90 ...
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... Two representative parts shown (°C) J SC1548CSK-1.8 Small Signal Gain and Phase Shift vs. Frequency I = 1.8A OUT Gain Phase 1.00E+03 1.00E+04 1.00E+05 Gain (dB) SC1548CSK Small Signal Gain and Phase Shift vs. Frequency V OUT I = 1.8A OUT Gain Phase 1.00E+03 1.00E+04 1.00E+05 f (Hz) www.semtech.com 100 125 0 -45 ...
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... Timebase: 10µs/div Load Transient Response, Expanded Trace coupled, 50mV/div. OUT Trace 2V/div. DRV Trace M3: load stepping from Timebase: 1µs/div 2004 Semtech Corp. (1) Load Transient Response, Expanded Trace 1: V OUT Trace 2: V DRV Trace M3: load stepping from Timebase: 1µs/div Trace 1: V DRV ...
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... Trace 2V/div. EN Timebase: 100ns/div t 350ns f Drive Output Rise Time, t Trace 1V/div. DRV Trace 2V/div. EN Timebase: 500µs/div t 1ms r 2004 Semtech Corp. (1) f Trace 1: V DRV Trace Timebase: 250ns/div t 550ns D(ON) Power-up Output Short Circuit Immunity r Trace 1: V DRV Trace Timebase: 2ms/div SC1548 enabled into a short, therefore V immediately the device is enabled ...
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... If this pin is pulled low, the drive pin is pulled low, turning off the N-channel MOSFET. If the pin is left open or pulled up to 2.5V, 3.3V or 5V, then the drive pin will be enabled. 2004 Semtech Corp. (1) Note: (1) See Applications Circuit on page 1. Also included is an overcurrent protection circuit that monitors the output voltage ...
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... Again, a target value for R2 (maximum) can be calculated 263 The output voltage can be calculated as follows 263 OUT 12 SC1548 100 A Volts OUT ( FIXED ) R 2 VPWR 12V ENABLE SNS EN 2 GND 3 4 DRV IN SC1548CSK-X.X C4 0.1uF 12V IN VPWR ENABLE ADJ EN 2 GND 3 4 DRV IN SC1548CSK C4 0.1uF www.semtech.com ...
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... IN off. If the enable function is not being used, EN should be tied PWR 2004 Semtech Corp most effective, the MOSFET R selected artificially low. The MOSFET should be chosen so that at maximum required current almost fully turned on. If, for example, a supply of 1. required from a 3.3V ± 5% rail, the maximum allowable ...
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... CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND -B- 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Land Pattern - SOT-23-5 X (C) P NOTES: 1. Contact Information Phone: (805)498-2111 FAX (805)498-3804 2004 Semtech Corp. DIMENSIONS INCHES DIM MIN NOM .035 - A1 .000 A2 .035 .045 N ...