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LT3074AVPBF 数据表(PDF) 58 Page - Analog Devices |
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LT3074AVPBF 数据表(HTML) 58 Page - Analog Devices |
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58 / 62 page  Data Sheet LT3074 analog.com Rev 0. 58 of 62 Figure 93. Regulator with VIOC Buck Control CSETCAP 4.7µF COUT 10µF 0.22µF RPG1 30kΩ RPG2 15kΩ RSETRES 5kΩ 800mV 51kΩ RASELTOP RASELBOT 0.47µF 2.2µF L 10µH 48.7kΩ 200kΩ 6.49kΩ LT3074 LT8610A BIAS BIASDF IN OUT SENSE SETCAP IMON SDA SCL ALERT ASEL AGND EN/UV VINLDO VOUTLDO = 0.5V IOUT(MAX) = 3A VIOC PG CLKDIS SETRES BIASAF DGND PGFB 1× + – VBIAS SW PG FB INTVCC BIAS BST VIN EN/UV RT 150kΩ fSW = 300kHz TR/SS SYNC GND 3.4V TO 42V VIN >= VOUTLDO + 1.5V L: WURTH 74437346100 C1: AVX TCJD227M010R0040 VINLDO(MAX) = 0.97 × (48.7kΩ = 6.49kΩ = 200kΩ)/48.7kΩ = 5.08V VINLDO × VOUTLDO = 1.1V – 0.8V = 0.3V FOR ALL PROGRAMMED VOUTLDO VALUES 1µF 16V 0.1µF 50V 0.1µF 0.1µF 10µF 50V ×2 C1 220µF 10V 10µF |
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