Datasheet LT3580 (Analog Devices) - 24
| Fabricante | Analog Devices |
| Descripción | Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization |
| Páginas / Página | 28 / 24 — TYPICAL APPLICATIONS. –5V Output Inverting Converter Switches at 2.5MHz … |
| Formato / tamaño de archivo | PDF / 302 Kb |
| Idioma del documento | Inglés |
TYPICAL APPLICATIONS. –5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V
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Versión de texto del documento
LT3580
TYPICAL APPLICATIONS –5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V
C3 L1 L2 1μF 4.7μH 4.7μH VOUT VIN –5V 3.3V TO 12V 800mA (VIN = 12V) C2 620mA (VIN = 5V) D1 VIN SW 10μF 450mA (VIN = 3.3V) SHDN GND 60.4k LT3580 RT FB VC SYNC SS 10k 100pF C1 35.7k 0.1μF 2.2μF 2.2nF 3580 TA08a C1: 2.2μF, 25V, X5R, 1206 C2: 10μF, 25V, X5R, 1206 C3: 1μF, 50V, X5R, 0805 D1: CENTRAL SEMI CMMSH1-40 L1, L2: COILCRAFT LSP4018-472ML
Efficiency and Power Loss vs Load Current
85 1200 VIN = 5V 80 1000 75 POWER LOSS (W) 70 800 65 600 60 EFFICIENCY (%) 55 400 50 200 45 40 0 0 100 200 300 400 500 600 700 LOAD CURRENT (mA) 3580 TA08b 3580fg 24
TYPICAL APPLICATIONS –5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V
C3 L1 L2 1μF 4.7μH 4.7μH VOUT VIN –5V 3.3V TO 12V 800mA (VIN = 12V) C2 620mA (VIN = 5V) D1 VIN SW 10μF 450mA (VIN = 3.3V) SHDN GND 60.4k LT3580 RT FB VC SYNC SS 10k 100pF C1 35.7k 0.1μF 2.2μF 2.2nF 3580 TA08a C1: 2.2μF, 25V, X5R, 1206 C2: 10μF, 25V, X5R, 1206 C3: 1μF, 50V, X5R, 0805 D1: CENTRAL SEMI CMMSH1-40 L1, L2: COILCRAFT LSP4018-472ML
Efficiency and Power Loss vs Load Current
85 1200 VIN = 5V 80 1000 75 POWER LOSS (W) 70 800 65 600 60 EFFICIENCY (%) 55 400 50 200 45 40 0 0 100 200 300 400 500 600 700 LOAD CURRENT (mA) 3580 TA08b 3580fg 24