SC338AIMSTRT Semtech, SC338AIMSTRT Datasheet
SC338AIMSTRT
Specifications of SC338AIMSTRT
Related parts for SC338AIMSTRT
SC338AIMSTRT Summary of contents
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... POWER MANAGEMENT Description The SC338( ultra low output voltage dual power supply controller designed to simplify power management for notebook PCs part of Semtech’s Smart LDO family of products. The SC338(A) has two user adjustable outputs that can be set anywhere between 0.5V and 3. 12V, anywhere between 0 ...
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... Note Electrical Characteristics = 5V ± 5%, V Unless specified 25° Values in bold apply over full operating ambient temperature range 2004 Semtech Corp 1.5V ± 5%, 0A (1) I 3A. PWR OUT SC338(A) PRELIMINARY ° ° ° ° ° ° www.semtech.com µ µ µ ...
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... FETs). PWR ( exceeded for longer than 50µs (nom.) the protection circuitry will shut down that output. TH(UV) (3) During startup only -6% (typ.), then switches to -12% (typ.). TH(PGD) 2004 Semtech Corp. = 1.5V ± 5 3A. (1) PWR OUT l o ...
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... Pin Descriptions 2004 Semtech Corp. Ordering Information Notes: (1) Only available in tape and reel packaging. A reel contains 2500 devices. ( 12V (0.5V to 1.8V for ±2.5% over -40°C ADJ ( ±1.5% over 0°C ADJ (5) Lead free product. This product is fully WEEE and RoHS compliant ...
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... Marking Information SC338 Top Mark AK00 yyww Bottom Mark xxxx xxxx AK00: Identifier for SC338 yyww: Date code (Example: 0012) xxxx: Semtech Lot # (Example: E901 xxxx: 01-1) 2004 Semtech Corp. (0.95 VBG at start-up) SC338A Top Mark AK0A 338A yyww Bottom Mark xxxx ...
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... The drive outputs for each output are source and sink capable. The sink current is typically 0.8mA (1mA at 12V in). The source current is typically 2mA 2004 Semtech Corp. and 3.75mA at 12V in during normal operation. The high side drive voltage is generated from V low dropout regulator, thus at 12V in, 6.9V is available and at 5V in, 4 ...
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... IN pin or afterwards. Please see the example below. Example: SC338(A) powered from 5V, output 1 powered 2004 Semtech Corp. from 1.8V set for 1.5V out, output 2 not shown for simplicity. Worst case undervoltage threshold is 60% (over temperature) of 1.5V, or 0.9V. The typical enable threshold is ~1V ...
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... V is given by OUT ( MAX ) DRAIN ( MIN ) OUT ( MAX ) 2004 Semtech Corp 2. must be met to 3 DS(ON) Table 1: Recommended Resistor Values For SC338(A) Design Example Goal: 1.05V± 2.5A from 1.2V±5% and 5V±5% Solution 1: no passive droop. ...
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... I OUT ( MAX ) Obviously 12V rail is available to power the SC338(A), the number of FET options increases dramatically. 2004 Semtech Corp. Solution 2: using passive droop. 1.2V +/-5% IN 1.05V @ 2.5A ESR capacitors should be 100uF, 25mOhm POSCAP Passive droop allows us to use almost the full output ...
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... Power dissipation within the device is practically negligible, thus requiring no special consideration during layout. The MOSFET pass devices should be laid out according to the manufacturer’s guidelines for the power being dissipated within them. 2004 Semtech Corp. 10 SC338(A) PRELIMINARY www.semtech.com ...
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... Reference Voltage vs. Junction Temperature 0.510 0.508 0.506 0.504 0.502 0.500 0.498 0.496 0.494 0.492 0.490 -50 - (°C) J 2004 Semtech Corp. Standby Current vs. Junction Temperature 100 Both 0.1 0.01 75 100 125 -50 -25 Enable Input Threshold Voltage 1 1.6 1.4 1.2 1.0 0.8 0.6 0.4 ...
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... J Power Good Threshold vs. Junction Temperature 0 -2.5 -5.0 -7.5 Startup only -10.0 -12.5 Normal operation -15.0 -50 - (°C) J 2004 Semtech Corp. Drive Pin Output Current (Sinking) vs. Junction Temperature vs. Input Voltage 1200 < > V ADJ BG ADJ 1000 800 600 400 200 0 75 100 125 ...
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... OUT Trace 2V/div. DRV Trace 3: 1.2V in, 50mV/div., offset 1V Trace 4: load FET drain Timebase: 20µs/div. Load rise/fall times /µs 35A 2004 Semtech Corp. 10 100 Load Transient Response, With Passive Droop V = 5V, 1. 1.05V out 0.01A to 2.51A to 0.01A OUT 100µF, 25m ...
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... OR GATE BURRS. 4. REFERENCE JEDEC STD MO-187, VARIATION BA. Land Pattern - MSOP-10 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information 2004 Semtech Corp. e INCHES DIM A MIN NOM MAX MIN .000 A2 ...