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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC174 датащи(PDF) 1 Page - Semtech Corporation |
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SC174 датащи(HTML) 1 Page - Semtech Corporation |
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1 / 27 page  © 2010 Semtech Corporation May 18 , 2010 Description V IN: 3V to 5.5V V OUT: 0.75V to 95% x VIN I OUT: Up to 4A Low R DS(ON) Switches Up to 95% Peak Efficiency High Output Accuracy Small Ceramic Capacitors Power Good Pin (Open-Drain) Patented Adaptive On-Time Control: Excellent Transient Response Programmable Pseudo-fixed Frequency Fault Protection Features: Cycle-by-Cycle Current Limit Short Circuit Protection Over and Under Output Voltage Protection Over-Temperature Internal Soft start Ultrasonic Power Save Smart Power Save Ultra-Small Lead-Free 3x3mm, 10-Pin MLPD Package Fully WEEE and RoHS Compliant Applications Networking Equipment, Embedded Systems Medical Equipment, Office Automation Instrumentation, Portable Systems Consumer Devices (DTV, Set-top Box, ... ) 5V POL Converters The SC174 is an integrated, synchronous 4A EcoSpeedTM step-down regulator, which incorporates Semtech’s advanced, patented adaptive on-time architecture to achieve best-in-class performance in dynamic point-of- load applications. The input voltage range is 3V to 5.5V with a programmable output voltage from 0.75V up to 95% x V IN. The device features low-RDS(ON) internal switch- es and optional PSAVE mode for high efficiency across the output load range. Adaptive on-time control provides programmable pseu- do-fixed frequency operation and excellent transient performance. The switching frequency can be set from 200kHz to 1MHz - allowing the designer to reduce exter- nal LC filtering and minimize light load (standby) losses. Disabling PSAVE operation reduces output voltage ripple at light load for ceramic output capacitors. Additional features include cycle-by-cycle current limit, soft start, input UVLO and output OV protection, and over temperature protection. The open-drain P GOOD pin provides output status. Standby current is less than 10μA when disabled. The device is available in a low profile, thermally en- hanced MLPD-3x3mm 10-pin package. Features SC174 3 to 5.5V VIN EN/PSV PGND Enable / Power Save AGND LX VDD Power Good FB PGOOD BST TON VOUT = 0.75V to 95% VIN 4A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save SC174 POWER MANAGEMENT 1 Typical Application Circuit |
Аналогичный номер детали - SC174 |
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Аналогичное описание - SC174 |
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ссылки URL |
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