sc1102cstr Semtech Corporation, sc1102cstr Datasheet
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sc1102cstr
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sc1102cstr Summary of contents
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POWER MANAGEMENT Description The SC1102 and SC1102A are low-cost, full featured, synchronous voltage-mode controllers designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many ...
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POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions ...
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POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 4.75V to 12.6V; GND = PGND = 0V ...
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POWER MANAGEMENT Pin Configuration Top View (14-Pin SOIC) Pin Descriptions ...
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POWER MANAGEMENT Block Diagram Applications Information - Theory of Operation Synchronous Buck Converter Primary V power is provided by a synchronous, volt- CORE age-mode pulse width modulated (PWM) controller. This section has all the features required to build a high ...
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POWER MANAGEMENT Applications Information (Cont.) Soft Start Initially, SS/SHDN sources 10µA of current to charge an external capacitor. The outputs of the error amplifiers are clamped to a voltage proportional to the voltage on SS/SHDN. This limits the on-time of ...
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POWER MANAGEMENT Application Circuit Typical 12V Application Circuit with Bootstrapped BSTH + 1.74k C2 SC1102 opt. 0.1 1 VCC PWRGD 2 PWRGD OVP OVP 4 OCSET 5 PHASE D1 MBR0520 ...
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POWER MANAGEMENT Typical Characteristics Output Ripple Voltage Ch1: Vo_rpl 5V 3.3V 12A IN O OUT PIN Descriptions Ch1: Vo_rpl 5V 1.3V 12A IN OUT OUT 2006 ...
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POWER MANAGEMENT Typical Characteristics (Cont.) Ch1: Vo_rpl 5V 1.3V 12A IN OUT OUT Error Amplifier, Gain and Phase 40 PIN Descriptions Gain 10 Phase -10 ...
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POWER MANAGEMENT Typical Characteristics (Cont.) Hiccup Mode Start Up Mode 2006 Semtech Corp. SC1102/SC1102A Ch1: Vin Ch2: Vss Ch3: Top Gate Ch4: Vout Vin = 5V Vout = 3.3V Vbst = 12V Iout = S.C. Iout = S.C. Iout = ...
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POWER MANAGEMENT Evaluation Board Schematic 2006 Semtech Corp. SC1102/SC1102A 11 www.semtech.com ...
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... C A-B D GAGE PLANE 0.25 A SEE DETAIL SIDE VIEW -A- AND - DETERMINED AT DATUM PLANE -H- DIM INCHES Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 12 SC1102/SC1102A DIMENSIONS INCHES MILLIMETERS NOM MAX MIN NOM MAX - - .069 1.35 1. .010 0.10 0. ...