Datasheet LTC3873 (Analog Devices) - 18
| 制造商 | Analog Devices |
| 描述 | No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller |
| 页数 / 页 | 18 / 18 — TYPICAL APPLICATIONS. Non-Insulated Boost Converter for Industrial … |
| 文件格式/大小 | PDF / 267 Kb |
| 文件语言 | 英语 |
TYPICAL APPLICATIONS. Non-Insulated Boost Converter for Industrial Applications. RELATED PARTS. PART NUMBER. DESCRIPTION
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LTC3873
TYPICAL APPLICATIONS Non-Insulated Boost Converter for Industrial Applications
VIN 4.5V-5.5V + C1 22µF 4.7pF OPT L1 IPRG VCC 8.2µH LTC3873-5 0.1µF XAL1010-822ME ITH RUN/SS 15k Q1 GND D1 NGATE BSC0906NS UPS840 47pF V VOUT FB 2.2nF SW 12V AT 2A C2 + C3 0.005Ω 22µF 150µF 2.37k 21.5k 3873 TA06 C1, C2: MURATA GRM32ER71E226 C3: PANASONIC 16TQC150
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT3748 100V Isolated Flyback Controller 5V ≤ VIN ≤ 100V, No-Opto Flyback , MSOP-16 with High Voltage Spacing LT8309 Secondary-Side Synchronous Rectifier Driver Works with DCM, BCM and Critical Conduction Mode Flyback Topologies, Supports up to 150V MOSFETs, SOT-23 Package LT3511/LT3512 100V Isolated Flyback Converters Monolithic No-Opto Flybacks with Integrated 240mA/420mA Switch, MSOP-16(12) LT8301/LT8302 42VIN Micropower No-Opto Isolated Flyback Converters 2.7V to 42V Input Voltage Range, SOT-23 and S8 Packages with 65V, 1.2A/3.6A Internal DMOS Power Switch LTC3786 38V Low IQ Synchronous Boost Controller 4.5V (Down to 2.5V after Start-Up) ≤ VIN ≤ 38V, VOUT up to 60V, 50kHz to 900kHz Fixed Operating Frequency, 3mm × 3mm QFN-32, MSOP-16E LTC3769 60V Low IQ Synchronous Boost Controller 4.5V (Down to 2.3V after Start-up) ≤ VIN ≤ 60V, VOUT up to 60V, 50kHz to 900kHz Fixed Operating Frequency, 4mm × 4mm QFN-24, TSSOP-20 LTC3803/LTC3803-3/ 200kHz/300kHz Flyback Controller VIN and VOUT Limited by External Components, SOT-23 LTC3803-5 LTC3805/LTC3805-5 Adjustable Frequency Flyback Controller VIN and VOUT Limited by External Components LT3757A Boost, Flyback, SEPIC and Inverting Controller 2.9V ≤ VIN ≤ 40V, Current Mode Control, 100kHz to 1MHz Programmable Operation Frequency, 3mm × 3mm DFN-10 and MSOP-10E Packages LT3798 Off-Line Isolated No Opto-Coupler Flyback Controller VIN and VOUT Limited Only by External Components with Active PFC LT3825 Isolated No-Opto Synchronous Flyback Controller 25V to 75V Input Voltage Range, Up to 80W LT3837 Isolated No-Opto Synchronous Flyback Controller 4.5V to 20V Input Voltage Range, Up to 60W LTC3872/LTC3872-1 No RSENSE Current Mode Boost DC/DC Controller 2.75V ≤ VIN ≤ 9.8V, VOUT Up to 60V, 550kHz Operation Frequency, SOT-23 and 2mm × 3mm DFN Packages 3873fb 18 Linear Technology Corporation LT 0316 REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 9503Fo 5-r 7m4o1re 7 information www.linear.com/LTC3873 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3873 LINEAR TECHNOLOGY CORPORATION 2007
TYPICAL APPLICATIONS Non-Insulated Boost Converter for Industrial Applications
VIN 4.5V-5.5V + C1 22µF 4.7pF OPT L1 IPRG VCC 8.2µH LTC3873-5 0.1µF XAL1010-822ME ITH RUN/SS 15k Q1 GND D1 NGATE BSC0906NS UPS840 47pF V VOUT FB 2.2nF SW 12V AT 2A C2 + C3 0.005Ω 22µF 150µF 2.37k 21.5k 3873 TA06 C1, C2: MURATA GRM32ER71E226 C3: PANASONIC 16TQC150
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT3748 100V Isolated Flyback Controller 5V ≤ VIN ≤ 100V, No-Opto Flyback , MSOP-16 with High Voltage Spacing LT8309 Secondary-Side Synchronous Rectifier Driver Works with DCM, BCM and Critical Conduction Mode Flyback Topologies, Supports up to 150V MOSFETs, SOT-23 Package LT3511/LT3512 100V Isolated Flyback Converters Monolithic No-Opto Flybacks with Integrated 240mA/420mA Switch, MSOP-16(12) LT8301/LT8302 42VIN Micropower No-Opto Isolated Flyback Converters 2.7V to 42V Input Voltage Range, SOT-23 and S8 Packages with 65V, 1.2A/3.6A Internal DMOS Power Switch LTC3786 38V Low IQ Synchronous Boost Controller 4.5V (Down to 2.5V after Start-Up) ≤ VIN ≤ 38V, VOUT up to 60V, 50kHz to 900kHz Fixed Operating Frequency, 3mm × 3mm QFN-32, MSOP-16E LTC3769 60V Low IQ Synchronous Boost Controller 4.5V (Down to 2.3V after Start-up) ≤ VIN ≤ 60V, VOUT up to 60V, 50kHz to 900kHz Fixed Operating Frequency, 4mm × 4mm QFN-24, TSSOP-20 LTC3803/LTC3803-3/ 200kHz/300kHz Flyback Controller VIN and VOUT Limited by External Components, SOT-23 LTC3803-5 LTC3805/LTC3805-5 Adjustable Frequency Flyback Controller VIN and VOUT Limited by External Components LT3757A Boost, Flyback, SEPIC and Inverting Controller 2.9V ≤ VIN ≤ 40V, Current Mode Control, 100kHz to 1MHz Programmable Operation Frequency, 3mm × 3mm DFN-10 and MSOP-10E Packages LT3798 Off-Line Isolated No Opto-Coupler Flyback Controller VIN and VOUT Limited Only by External Components with Active PFC LT3825 Isolated No-Opto Synchronous Flyback Controller 25V to 75V Input Voltage Range, Up to 80W LT3837 Isolated No-Opto Synchronous Flyback Controller 4.5V to 20V Input Voltage Range, Up to 60W LTC3872/LTC3872-1 No RSENSE Current Mode Boost DC/DC Controller 2.75V ≤ VIN ≤ 9.8V, VOUT Up to 60V, 550kHz Operation Frequency, SOT-23 and 2mm × 3mm DFN Packages 3873fb 18 Linear Technology Corporation LT 0316 REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 9503Fo 5-r 7m4o1re 7 information www.linear.com/LTC3873 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3873 LINEAR TECHNOLOGY CORPORATION 2007