SC1548CSKTRT Semtech, SC1548CSKTRT Datasheet
SC1548CSKTRT
Specifications of SC1548CSKTRT
Related parts for SC1548CSKTRT
SC1548CSKTRT Summary of contents
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... Description The SC1548 is a power supply controller designed to provide a simple single regulated power supply with over current protection part of Semtech’s SmartLDO™ family of products. The SC1548 can provide a 1.818V power supply for the I/O plane or 1.515V for GTL+ / AGP from either 3.3V or 2.5V. An adjustable option allows generation and control of any voltage from 1 ...
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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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... 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 110 105 100 100 125 0 1.845 1.840 1.835 1.830 1.825 1.820 1.815 1.810 1.805 1.800 1.795 1 ...
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... T (°C) J SC1548CSK-1.5 Small Signal Gain and Phase Shift vs. Frequency -20 -40 -60 -80 1.00E+02 1.00E+03 1.00E+04 f (Hz) 2004 Semtech Corp. (1) 1200 = 12V = 3.3V 1000 of 0 applied to output 800 600 400 200 0 0 100 125 -20 -40 -60 -80 75 100 125 1 ...
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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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... Figure 2 above). In this case, the adjust pin sources a nominal 0.5µA, so the resistor values should be selected to allow 50µA to flow through the divider. 2004 Semtech Corp. V OUT ( FIXED ...
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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 ...