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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC3521 датащи(PDF) 20 Page - Linear Technology |
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LTC3521 датащи(HTML) 20 Page - Linear Technology |
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20 / 20 page  LTC3521 0 3521f LinearTechnology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2010 LT 0310 • PRINTED IN USA relaTeD parTs PART NUMBER DESCRIPTION COMMENTS LTC3100 700mA ISW, 1.5MHz, Synchronous Step-Up, 250mA Synchronous Step-Down DC/DC Converter and 100mA LDO 94% Efficiency, VIN: 0.7V to 5V, VOUT(MAX) = 5.25V, IQ = 15µA, ISD < 1µA, 3mm × 3mm QFN-16 Package LTC3101 Wide VIN, Multioutput DC/DC Converter and PowerPath™ Controller, 800mA Buck-Boost, Dual 350mA Buck Converters, 50mA Always-On LDO 95% Efficiency, VIN: 1.8V to 5.5V, IQ = 38µA, Standby IQ = 15µA, 4mm × 4mm QFN-24 Package LTC3409 600mA IOUT, 1.7MHz/2.6MHz, Synchronous Step-Down DC/DC Converter 96% Efficiency, VIN: 1.6V to 5.5V, VOUT(MIN) = 0.6V, IQ = 65µA, ISD < 1µA, DFN Package LTC3441/LTC3442/ LTC3443 1.2A IOUT, 2MHz, Synchronous Buck-Boost DC/DC Converter 95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MIN): 2.4V to 5.25V, IQ = 50µA, ISD < 1µA, DFN Package LTC3520 1A 2MHz, Synchronous Buck-Boost and 600mA Buck Converter 95% Efficiency, VIN: 2.2V to 5.5V, VOUT(MAX) = 5.25V, IQ = 55µA, ISD < 1µA, 4mm × 4mm QFN-24 Package LTC3522 400mA 2MHz, Synchronous Buck-Boost and 200mA Buck Converter 95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MAX) = 5.25V, IQ = 25µA, ISD < 1µA, 3mm × 3mm QFN-16 Package LTC3531/LTC3531-3/ LTC3531-3.3 200mA IOUT, 1.5MHz, Synchronous Buck-Boost DC/DC Converter 95% Efficiency, VIN: 1.8V to 5.5V, VOUT(MIN): 2V to 5V, IQ = 16µA, ISD < 1µA, ThinSOT and DFN Packages LTC3532 500mA IOUT, 2MHz, Synchronous Buck-Boost DC/DC Converter 95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MIN): 2.4V to 5.25V, IQ = 35µA, ISD < 1µA, MS10 and DFN Packages LTC3547 Dual 300mA IOUT, 2.25MHz, Synchronous Step-Down DC/DC Converter 95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40µA, ISD < 1µA, DFN-8 Package Typical applicaTion Li-Ion to 3.3V at 800mA, 1.8V at 600mA and 1.2V at 600mA with Sequenced Start-Up Sequenced Start-Up Waveforms PVIN1 PVIN2 SW2 VOUT1 FB2 FB1 SW3 LTC3521 SHDN1 R5 100k R3 137k R4 68.1k C3 10µF C2 10µF 4.7µF Li-Ion L1 4.7µH L3 4.7µH L2 4.7µH VOUT2 1.8V 600mA R1 1.0M R2 221k C1 22µF VOUT1 3.3V 800mA (1A, VIN > 3.0V) VIN 2.4V TO 4.2V R6 100k 499k R5 499k 3521 TA03a PGOOD1 PGOOD3 PWM SW1A SW1B FB3 PGOOD2 SHDN2 SHDN3 PGOOD1 PGND2 GND PGND1 PWM BURST ON OFF VOUT3 1.2V 600mA + 500µs/DIV VOUT2 2V/DIV VOUT3 2V/DIV VOUT1 2V/DIV SHDN2, 5V/DIV PGOOD2, 5V/DIV PGOOD3, 5V/DIV 3521 TA03b |
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