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LTC7813 Datasheet(PDF) 32 Page - Linear Technology |
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LTC7813 Datasheet(HTML) 32 Page - Linear Technology |
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32 / 32 page  LTC7800 32 7800f For more information www.linear.com/LTC7800 LINEAR TECHNOLOGY CORPORATION 2017 LT 0517 • PRINTED IN USA www.linear.com/LTC7800 RELATED PARTS TYPICAL APPLICATION MTOP MBOT D1 L1 0.47µH R 4m 487k 34.8k 7800 F16 2.2µF 2nF 0.1µF C 10µF R 20 100k 100k 2k 0.47nF 82pF 0.1µF VIN PGOOD RUN INTVCC PGND ILIM PLLIN/MODE EXTVCC FREQ ITH TRACK/SS SGND TG BOOST SW BG SENSE+ SENSE– VFB SGND LTC7800 10pF C 2.2µF C 56µF SENSE FLT INTVCC V 28V* IN 12V OUT VOUT 10A* 12.5V TO MBOT: INFINEON BSZ0506NS L1: WURTH 744314047 D1: CENTRAL SEMI CMDSH-4E ×2 VOUT INA INB : TDK C4532X7R2A225M INA C : SUN ELECT 63HVH56M INB C ×3 : TDK C4532X7R1E106M COUT MTOP: INFINEON BSZ0506NS *OUTPUT CURRENT CAPABILITY AT HIGH INPUT VOLTAGES MAY BE LIMITED BY THE THERMAL CHARACTERISTICS OF THE OVERALL SYSTEM AND PRINTED CIRCUIT BOARD DESIGN. Figure 16. High Efficiency 12V 2.1MHz Step-Down Regulator PART NUMBER DESCRIPTION COMMENTS LTC3891 60V, Low IQ, Synchronous Step-Down DC/DC Controller with 99% Duty Cycle 4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 24V, IQ = 50µA PLL Fixed Frequency 50kHz to 900kHz, Pin Compatible with LTC7800 LTC3895 150V Low IQ, Synchronous Step-Down DC/DC Controller 4V ≤ VIN ≤ 140V, 150VP-P, 0.8V ≤ VOUT ≤ 24V, IQ = 50µA PLL Fixed Frequency 50kHz to 900kHz LTC3810 100V Synchronous Step-Down DC/DC Controller Constant On-time Valley Current Mode 6.2V ≤ VIN ≤ 100V, 0.8V ≤ VOUT ≤ 0.93VIN, SSOP-28 LTC3864 60V, Low IQ, High Voltage DC/DC Controller with 100% Duty Cycle Fixed Frequency 50kHz to 850kHz, 3.5V≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ VIN , IQ = 40µA, MSOP-12E, 3mm × 4mm DFN-12 LT3840 60V, Low IQ, Synchronous Step-Down Controller with Integrated Buck-Boost Bias Voltage Regulator 2.5V≤ VIN ≤ 60V, 1.23V ≤ VOUT ≤ 60V, IQ = 75µA Synchronizable Fixed Frequency 100kHz to 600kHz LTC3892/LTC3892-1 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller with 99% Duty Cycle 4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 0.99VIN, PLL Fixed Frequency 50kHz to 900kHz, Adjustable 5V to 10V Gate Drive, IQ = 29µA LTC3890/LTC3890-1/ LTC3890-2/LTC3890-3 60V, Low IQ, Dual 2-Phase Synchronous Step-Down DC/DC Controller with 99% Duty Cycle PLL Fixed Frequency 50kHz to 900kHz, 4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 24V, IQ = 50µA LTC7813 60V Low IQ, Synchronous Boost + Buck DC/DC Controller 4.5V (Down to 2.2V After Start-up) ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 60V, Adjustable 5V to 10V Gate Drive, IQ = 33µA LTC7801 150V Low IQ, Synchronous Step-Down DC/DC Controller 4V ≤ VIN ≤ 140V, 150V Abs Max, 0.8V ≤ VOUT ≤ 60V, IQ = 40µA, PLL Fixed Frequency 320kHz to 2.25MHz LTC7103 105V, 2.3A Low EMI Synchronous Step-Down Regulator 4.4V ≤ VIN ≤ 105V, 1V ≤ VOUT ≤ VIN, IQ = 2µA, Fixed Frequency 200kHz to 2MHz, 5mm × 6mm QFN |
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