ltc3411ems-trpbf Linear Technology Corporation, ltc3411ems-trpbf Datasheet
ltc3411ems-trpbf
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ltc3411ems-trpbf Summary of contents
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... To further maximize battery life, the P-channel MOSFET is turned on continuously in dropout (100% duty cycle) with a low quiescent current of 60μA. In shutdown, the device draws <1μA. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Burst Mode is a registered trademark of Linear Technology Corporation 22μ ...
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... LTC3411EDD LTC3411EDD#TR LTC3411IDD LTC3411IDD#TR LTC3411EMS LTC3411EMS#TR LTC3411IMS LTC3411IMS#TR Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is indicated by a label on the shipping container. 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 V Operating Voltage Range IN I Feedback Pin Input Current FB V Feedback Voltage FB ΔV Reference Voltage Line Regulation LINEREG ΔV Output Voltage Load Regulation LOADREG g Error ...
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LTC3411 CTIO S SHDN/R (Pin 1): Combination Shutdown and Timing T Resistor Pin. The oscillator frequency is programmed by connecting a resistor from this pin to ground. Forcing this pin to SV causes the device ...
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CTIO S PIN NAME DESCRIPTION 1 SHDN/R Shutdown/Timing Resistor T 2 SYNC/MODE Mode Select/Sychronization Pin 3 SGND Signal Ground 4 SW Switch Node 5 PGND Main Power Ground 6 PV Main Power Supply IN 7 ...
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LTC3411 W U TYPICAL PERFOR A CE CHARACTERISTICS Load Regulation 0 3. 2.5V 0.3 OUT Burst Mode 0.2 OPERATION PULSE SKIP 0.1 0 FORCED CONTINUOUS –0.1 –0.2 –0.3 –0.4 –0 100 1000 10000 ...
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W BLOCK DIAGRA 0.8V VOLTAGE REFERENCE + – ERROR AMPLIFIER + 0.74V – + – 0.86V PGOOD 8 SGND LIMIT BCLAMP B – BURST COMPARATOR ...
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LTC3411 U OPERATIO The LTC3411 uses a constant frequency, current mode architecture. The operating frequency is determined by the value of the R resistor or can be synchronized external oscillator. To suit a variety of applications, the ...
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U U APPLICATIO S I FOR ATIO A general LTC3411 application circuit is shown in Figure 5. External component selection is driven by the load requirement, and begins with the selection of the inductor L1. Once L1 is chosen, C ...
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LTC3411 U U APPLICATIO S I FOR ATIO current which causes this to occur at lower load currents. This causes a dip in efficiency in the upper range of low current operation. In Burst Mode operation, lower induc- tance values ...
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U U APPLICATIO S I FOR ATIO where the maximum average output current I the peak current minus half the peak-to-peak ripple cur- – ΔI rent /2. MAX LIM L This formula has a maximum at V ...
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LTC3411 U U APPLICATIO S I FOR ATIO Ceramic Input and Output Capacitors Higher value, lower cost ceramic capacitors are now becoming available in smaller case sizes. These are tempt- ing for switching regulator use because of their very low ...
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U U APPLICATIO S I FOR ATIO Shutdown and Soft-Start The SHDN/R pin is a dual purpose pin that sets the T oscillator frequency and provides a means to shut down the LTC3411. This pin can be interfaced with control ...
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LTC3411 U U APPLICATIO S I FOR ATIO age of overshoot seen at this pin. The bandwidth can also be estimated by examining the rise time at the pin. The I external components shown in the Figure 1 circuit TH ...
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U U APPLICATIO S I FOR ATIO In some applications, a more severe transient can be caused by switching in loads with large (>1uF) input capacitors. The discharged input capacitors are effectively put in parallel with C , causing a ...
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LTC3411 U U APPLICATIO S I FOR ATIO To avoid the LTC3411 from exceeding the maximum junction temperature, the user will need to do some thermal analysis. The goal of the thermal analysis is to determine whether the power dissipated ...
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U U APPLICATIO S I FOR ATIO The output voltage can now be programmed by choosing the values of R1 and R2. To maintain high efficiency, the current in these resistors should be kept small. Choosing 2μA with the 0.8V ...
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LTC3411 U TYPICAL APPLICATIO 2.63V TO C1 5.5V 22μF PGND RS1 RS2 1M R3 13k SGND SGND NOTE: IN DROPOUT, THE OUTPUT TRACKS THE INPUT VOLTAGE C1, C2: TAIYO YUDEN JMK325BJ226MM L1: TOKO ...
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U TYPICAL APPLICATIO 2.63V TO 5V 100k PGOOD R1 280k R3 13k 887k 1000pF 10pF C1, C2: TAIYO YUDEN JMK325BJ226MM C4: SANYO POSCAP 6TPA47M D1: ON MBRM120L Single Inductor, Positive, Buck-Boost Converter C1 22μF ...
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LTC3411 U TYPICAL APPLICATIO 4.7μH LTC3402 SHDN V OUT + 2 CELLS MODE/SYNC FB PGOOD 10μF R GND T 49.9k C1: TAIYO YUDEN JMK212BJ106MG 0 = ...
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PACKAGE DESCRIPTIO 3.50 ±0.05 1.65 ±0.05 2.15 ±0.05 (2 SIDES) 0.25 ± 0.05 0.50 BSC 2.38 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS U DD Package 10-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1699) 0.675 ...
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LTC3411 PACKAGE DESCRIPTIO 0.889 ± 0.127 (.035 ± .005) 5.23 3.2 – 3.45 (.206) (.126 – .136) MIN 0.305 ± 0.038 0.50 (.0120 ± .0015) (.0197) TYP BSC RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT ...
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... L1: COILCRAFT DO1606T-102 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. 2mm Height, 2MHz, Li-Ion to 1.8V Converter ...
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... DDR/QDR Memory Termination LTC3430 60V, 2.75A (I ) 200kHz High Efficiency Step-Down DC/DC Converter OUT LTC3440 600mA (I ) 2MHz Synchronous Buck-Boost DC/DC Converter OUT ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 24 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● www.linear.com ● ...