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LTM4607 数据表(PDF) 21 Page - Linear Technology |
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LTM4607 数据表(HTML) 21 Page - Linear Technology |
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21 / 32 page ![]() LTM8042/LTM8042-1 21 80421fa APPLICATIONS INFORMATION Table 2. LTM8042 Recommended Values and Configuration for Buck Mode (TA = 25°C) VIN RANGE (BSTOUT/BKIN) VCC CVCC CIN (BSTOUT/BKIN TO GND) COUT (BSTOUT/BKIN TO BSTIN/BKLED–) LED STRING VOLTAGE (LED+ TO BSTIN/ BKLED–) LED STRING CURRENT RCTL RT (OPTI- MAL) f (OPTI- MAL) RT (MIN) f (MAX) 4.4V to 5.5V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1206 X7R 10V 2V to 4V 35mA 523 86.6k 250k 86.6k 250k 6.8V to 14V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1206 X7R 10V 4V to 6V 35mA 523 86.6k 250k 86.6k 250k 9.6V to 26V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1206 X7R 16V 6V to 9V 35mA 523 86.6k 250k 86.6k 250k 12.5V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1210 X7R 16V 8V to 12V 35mA 523 86.6k 250k 86.6k 250k 16.6V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1210 X7R 25V 12V to 16V 35mA 523 86.6k 250k 46.4k 420k 21.8V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1210 X7R 25V 15V to 21V 35mA 523 86.6k 250k 33.2k 550k 24.5V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 2.2μF 1210 X7R 25V 18V to 24V 35mA 523 86.6k 250k 26.1k 670k 4.5V to 21V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 2V to 4V 100mA 1.30k 86.6k 250k 86.6k 250k 6.8V to 33.8V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 4V to 6V 100mA 1.30k 86.6k 250k 86.6k 250k 9.9V to 33.5V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 6V to 9V 100mA 1.30k 76.8k 275k 69.8k 300k 13V to 33.4V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 8V to 12V 100mA 1.30k 69.8k 300k 48.7k 400k 17.2V to 33.1V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 12V to 16V 100mA 1.30k 37.4k 500k 31.6k 575k 23V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 15V to 21V 100mA 1.30k 24.9k 700k 19.1k 870k 26V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 18V to 24V 100mA 1.30k 21.0k 800k 12.4k 1.2M 5.2V to 33.6V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 2V to 4V 350mA 4.75k 61.9k 330k 54.9k 365k 7V to 33.4V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 4V to 6V 350mA 4.75k 30.1k 600k 24.9k 700k 10.5V to 33.3V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 6V to 9V 350mA 4.75k 21.0k 800k 15.8k 1M 14.5V to 33.2V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 8V to 12V 350mA 4.75k 12.4k 1.2M 8.25k 1.6M 19.2V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 12V to 16V 350mA 4.75k 11.0k 1.3M 3.74k 2.5M 25V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 15V to 21V 350mA 4.75k 11.0k 1.3M 3.74k 2.5M 4.9V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 2V to 4V 500mA 7.32k 37.4k 500k 33.2k 550k 7.3V to 33.2V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 4V to 6V 500mA 7.32k 21.0k 800k 18.2k 900k 10.7V to 33V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 6V to 9V 500mA 7.32k 15.8k 1M 11.0k 1.3M 14.1V to 32.8V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 8V to 12V 500mA 7.32k 15.8k 1M 7.50k 1.7M 18.5V to 32.5V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 12V to 16V 500mA 7.32k 15.8k 1M 3.74 2.5M 24.3V to 32.5V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 15V to 21V 500mA 7.32k 15.8k 1M 3.74k 2.5M 5V to 33.2V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 2V to 4V 700mA 11.8k 33.2k 550k 30.1k 600k 7.3V to 32.7V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1206 X7R 10V 4V to 6V 700mA 11.8k 21.0k 800k 18.2k 900k 10.8V to 32.7V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 6V to 9V 700mA 11.8k 15.8k 1M 11.0k 1.3M 14.4V to 32.2V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 16V 8V to 12V 700mA 11.8k 15.8k 1M 7.50k 1.7M 18.8V to 31.7V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 12V to 16V 700mA 11.8k 15.8k 1M 3.74k 2.5M 24.3V to 31.8V 3V to 30V 1μF 0805 X7R 50V 1μF 1206 X7R 50V 4.7μF 1210 X7R 25V 15V to 21V 700mA 11.8k 15.8k 1M 3.74k 2.5M 5V to 32V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1206 X7R 10V 2V to 4V 1A Open 33.2k 550k 30.1k 600k 7.2V to 32V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1206 X7R 10V 4V to 6V 1A Open 21.0k 800k 16.9k 950k 10.8V to 31V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1210 X7R 16V 6V to 9V 1A Open 15.8k 1M 11.0k 1.3M 14.3V to 30.5V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1210 X7R 16V 8V to 12V 1A Open 15.8k 1M 7.50k 1.7M 18.9V to 30.5V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1210 X7R 25V 12V to 16V 1A Open 15.8k 1M 3.74k 2.5M 24.6V to 30.5V 3V to 30V 1μF 0805 X7R 50V 2.2μF 1206 X7R 50V 4.7μF 1210 X7R 25V 15V to 21V 1A Open 15.8k 1M 3.74k 2.5M |
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