SC1457 SEMTECH [Semtech Corporation], SC1457 Datasheet
SC1457
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SC1457 Summary of contents
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... Designed especially for hand held, battery powered devices, the SC1457 can be switched by a CMOS or TTL compatible logic signal. When disabled, power consumption drops nearly to zero. Other features include short circuit protection, thermal shutdown protection and reverse battery protection ...
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... SC1457 ...
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... SC1457 µ µ ...
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... Only available in tape and reel packaging. A reel contains 3000 devices. (3) Evaluation board for SC1457. Specify output voltage option when ordering. (4) Lead free product. This product is fully WEEE and RoHS compliant ...
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... Output capacitor - Semtech recommends a minimum capacitance of 1µF at the output with an equivalent series resistance (ESR) of < 1 the SC1457 has been designed to be used with ceramic capacitors, it does not have to be used with ceramic capacitors, allowing the designer a choice. Increasing the bulk capacitance will further reduce output noise and improve the overall transient response ...
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... D ( MAX ) 2004 Semtech Corp. With the standard SOT-23-5/TSOT-23-5 Land Pattern shown at the end of this datasheet, and minimum trace widths, the thermal impedance junction to ambient for SC1457ISK is 256°C/W. Thus no additional heatsinking is required for this example. ( MAX ) ...
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... Line Regulation vs. Junction Temperature 12 I OUT 100 125 -50 Current Limit vs. Junction Temperature 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 75 100 125 -50 7 SC1457 Off-State Quiescent Current vs. Junction Temperature = 6. - (°C) J vs. Input Voltage Change = 1mA 6.5V IN OUT 5.5V IN OUT - (° ...
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... Flag Voltage vs. Junction Temperature 200 V IN 175 150 V = 1.5V OUT 125 100 V = 3.3V OUT 100 125 -50 8 SC1457 Dropout Voltage vs. Output Current vs. Junction Temperature Top to bottom 100 I (mA) OUT vs. Output Voltage V = 1.5V OUT V = 3.3V OUT 2.5 3.0 3.5 4.0 4.5 5.0 5.5 V (V) IN vs. Flag Current = 4 ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) Reverse Battery Protection vs. Junction Temperature 5 -6. 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -50 - (°C) J 2004 Semtech Corp. 75 100 125 9 SC1457 www.semtech.com ...
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... SC1457 J1 RIPPLE MON FLG J9 Q1 LOAD DRV Si4410 ...
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... Semtech Corp SC1457 Bottom Copper Top Silk Screen www.semtech.com ...
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... .012 0° aaa D bbb ccc bxN bbb C A-B D GAGE PLANE 0.25 A SEE DETAIL SIDE VIEW - DETERMINED AT DATUM PLANE -H- 12 SC1457 DIMENSIONS INCHES MILLIMETERS MAX MIN NOM MAX - - .057 0.90 1. .006 0.00 0.15 .045 .051 .90 1.15 1. .020 0.25 0. .009 0.08 0.22 .114 ...
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... Phone: (805)498-2111 FAX (805)498-3804 2004 Semtech Corp. DIMENSIONS DIMENSIONS DIM DIM INCHES INCHES (.098 .055 .037 X X .024 .043 Z Z .141 Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 13 SC1457 MILLIMETERS MILLIMETERS (2.50) 1.40 0.95 0.60 1.10 3.60 www.semtech.com ...