LT3412AEFE Linear Technology Corporation, LT3412AEFE Datasheet
LT3412AEFE
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LT3412AEFE Summary of contents
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... LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Burst Mode and OPTI-LOOP are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... LT3412AIFE#PBF LT3412AIFE#TRPBF LT3412AEUF#PBF LT3412AEUF#TRPBF LEAD BASED FINISH TAPE AND REEL LT3412AEFE LT3412AEFE#TR LT3412AIFE LT3412AIFE#TR LT3412AEUF LT3412AEUF#TR Consult LTC Marketing for parts specified with wider operating temperature ranges. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER SV Signal Input Voltage Range IN V Regulated Feedback Voltage FB I Voltage Feedback Leakage Current FB ΔV Reference Voltage Line Regulation FB V Output Voltage Load Regulation LOADREG ...
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LTC3412A W U TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs Load Current 100 90 Burst Mode OPERATION 80 70 FORCED CONTINUOUS 3. 2.5V 10 OUT FIGURE 4 CIRCUIT 0 0.01 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Load Step Transient Forced Continuous V OUT 100mV/DIV INDUCTOR CURRENT 2A/DIV V = 3.3V 40μs/DIV IN V =2.5V OUT F = 1MHz 3412A G10 LOAD STEP = FIGURE 4 CIRCUIT ...
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LTC3412A W U TYPICAL PERFOR A CE CHARACTERISTICS Quiescent Current vs Input Voltage 350 300 ACTIVE 250 200 150 100 SLEEP 50 0 2.5 3.5 4.0 4.5 5.0 5.5 3.0 INPUT VOLTAGE (V) 3412A G19 6 Quiescent Current vs Temperature ...
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CTIO S (FE Package/UHF Package) SV (Pin 1/Pin 11): Signal Input Supply. Decouple this IN pin to SGND with a capacitor. PGOOD (Pin 2/Pin 12): Power Good Output. Open-drain logic output that is pulled to ...
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LTC3412A U U FUNCTIONAL BLOCK DIAGRA VOLTAGE REFERENCE 0.8V + – ERROR AMPLIFIER SYNC/MODE + 0.74V – + RUN/SS 7 RUN – 0.86V PGOOD 2 U OPERATIO Main Control Loop The LTC3412A is a ...
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U OPERATIO The operating frequency is externally set by an external resistor connected between the RT pin and ground. The practical switching frequency can range from 300kHz to 4MHz. Overvoltage and undervoltage comparators will pull the PGOOD output low if ...
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LTC3412A U U APPLICATIO S I FOR ATIO Slope Compensation and Inductor Peak Current Slope compensation provides stability in constant fre- quency architectures by preventing subharmonic oscilla- tions at duty cycles greater than 50 accomplished internally by adding ...
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U U APPLICATIO S I FOR ATIO Ferrite designs have very low core losses and are preferred at high switching frequencies, so design goals can con- centrate on copper loss and preventing saturation. Ferrite core material saturates “hard,” which means ...
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LTC3412A U U APPLICATIO S I FOR ATIO Output Voltage Programming The output voltage is set by an external resistive divider according to the following equation: ⎛ ⎞ ⎜ ⎟ ...
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U U APPLICATIO S I FOR ATIO Efficiency Considerations The efficiency of a switching regulator is equal to the output power divided by the input power times 100 often useful to analyze individual losses to determine what is ...
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LTC3412A U U APPLICATIO S I FOR ATIO When a load step occurs, V immediately shifts by an OUT amount equal to ΔI , where ESR is the effective LOAD(ESR) . ΔI series resistance of C also begins to charge ...
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U U APPLICATIO S I FOR ATIO 3. Keep the switching node, SW, away from all sensitive small signal nodes. 4. Flood all unused areas on all layers with copper. Flooding with copper will reduce the temperature rise of power ...
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LTC3412A U TYPICAL APPLICATIO S 1.2V, 3A, 1.5MHz 1mm Height Regulator Using All Ceramic Capacitors PGOOD C 1000pF X7R ITH R SS 2.2M * COOPER SD10-R47 ** TAIYO YUDEN AMK212BJ226MD-B 1.8V, 3A Step-Down Regulator at 1MHz, Burst Mode Operation C ...
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U TYPICAL APPLICATIO S 3.3V, 3A Step-Down Regulator at 2MHz, Forced Continuous Mode Operation PGOOD C 820pF X7R ITH R 2.2M * VISHAY IHLP-2525CZ-01 ** TDK C4532X5R0J107M 2.5V, 3A Step-Down Regulator Synchronized to 1.8MHz PGOOD C 220pF X7R ITH R ...
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LTC3412A PACKAGE DESCRIPTIO 6.60 ±0.10 4.50 ±0.10 SEE NOTE 4 RECOMMENDED SOLDER PAD LAYOUT 4.30 – 4.50* (.169 – .177) 0.09 – 0.20 (.0035 – .0079) (.020 – .030) NOTE: 1. CONTROLLING DIMENSION: MILLIMETERS 2. DIMENSIONS ARE IN 3. DRAWING ...
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... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 16-Lead Plastic QFN (4mm × ...
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... Synchronous Buck-Boost OUT DC/DC Converter LTC3441 1. 1MHz, Synchronous Buck-Boost OUT DC/DC Converter LTC3548 400mA/800mA Dual Synchronous Step-Down DC/DC Converter ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● COMMENTS I : <1μA, MS8 Package ...