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LTM8042/LTM8042-1

80421fa

APPLICATIONS INFORMATION

Table 4. LTM8042-1 Recommended Values and Configuration for Boost (TA = 25°C)

VIN

RANGE

(BSTIN/

BKLED–)VCC

CIN

(BSTIN/BKLED–

TO GND)

COUT

(BSTOUT/BKIN

TO GND)

LED

STRING

VOLTAGE

(LED+ TO

GND)

LED

STRING

CURRENT RCTL

(OPTI-

MAL)

(OPTI-

MAL)

(MIN)

(MAX)

1V to 3.3V

3V to 30V

1μF 0805 X7R 10V

4V to 6V

35mA

1.27k

86.6k

250k 69.8k 300k

1.2V to 5V

3V to 30V

1μF 0805 X7R 10V

6V to 9V

35mA

1.27k

76.8k

275k 61.9k 330k

1.6V to 6V

3V to 30V

1μF 0805 X7R 10V

1μF 0805 X7R 16V

8V to 12V

35mA

1.27k

69.8k

300k 57.6k 350k

2.2V to 9.2V

3V to 30V

1μF 0805 X7R 10V

1μF 0805 X7R 16V

12V to 16V

35mA

1.27k

48.7k

400k 37.4k 500k

2.7V to 10V

3V to 30V

1μF 0805 X7R 16V

1μF 0805 X7R 25V

15V to 21V

35mA

1.27k

37.4k

500k 30.1k 600k

3V to 12.8V

Connect to BSTIN/BKLED–

1μF 0805 X7R 16V

1μF 0805 X7R 25V

18V to 24V

35mA

1.27k

33.2k

550k 27.4k 650k

3.7V to 14.7V Connect to BSTIN/BKLED–

1μF 0805 X7R 16V

1μF 0805 X7R 50V

24V to 32V

35mA

1.27k

33.2k

550k 27.4k 650k

1.1V to 3.8V

3V to 30V

1μF 0805 X7R 10V

2.2μF 1206 X7R 10V

4V to 6V

100mA

3.40k

86.6k

250k 37.4k 500k

1.5V to 5.6V

3V to 30V

1μF 0805 X7R 16V

2.2μF 1206 X7R 10V

6V to 9V

100mA

3.40k

76.8k

275k 37.4k 500k

2.4V to 7.1V

3V to 30V

2.2μF 1206 X7R 10V 2.2μF 1206 X7R 16V

8V to 12V

100mA

3.40k

69.8k

300k 37.4k 500k

3.1V to 10.4V Connect to BSTIN/BKLED– 2.2μF 1206 X7R 16V 2.2μF 1206 X7R 16V 12V to 16V

100mA

3.40k

48.7k

400k 30.1k 600k

4V to 12V

Connect to BSTIN/BKLED– 2.2μF 1206 X7R 16V 2.2μF 1206 X7R 25V 15V to 21V

100mA

3.40k

37.4k

500k 30.1k 600k

4.9V to 14.9V Connect to BSTIN/BKLED–

1μF 0805 X7R 16V

2.2μF 1206 X7R 25V 18V to 24V

100mA

3.40k

30.1k

600k 24.9k 700k

6.1V to 18.8V Connect to BSTIN/BKLED–

1μF 0805 X7R 25V

2.2μF 1206 X7R 50V 24V to 32V

100mA

3.40k

24.9k

700k 21.0k 800k

2.4V to 3.8V

3V to 30V

1μF 0805 X7R 10V

4.7μF 0805 X7R 10V

4V to 6V

350mA

19.6k

27.4k

650k 16.9k 950k

2.8V to 5.3V

3V to 30V

1μF 0805 X7R 10V

2.2μF 1206 X7R 10V

6V to 9V

350mA

19.6k

27.4k

650k 16.9k 950k

3.2V to 7V

Connect to BSTIN/BKLED–

1μF 0805 X7R 10V

2.2μF 1206 X7R 16V

8V to 12V

350mA

19.6k

27.4k

650k 16.9k 950k

4.1V to 10V

Connect to BSTIN/BKLED–

1μF 1206 X7R 10V

2.2μF 1206 X7R 16V 12V to 16V

350mA

19.6k

850k 15.8k

4.8V to 12.3V Connect to BSTIN/BKLED–

1μF 1206 X7R 16V

2.2μF 1206 X7R 25V 15V to 21V

350mA

19.6k

18.2k

900k 12.4k 1.2M

5.8V to 15V

Connect to BSTIN/BKLED–

1μF 1206 X7R 16V

2.2μF 1206 X7R 25V 18V to 24V

350mA

19.6k

16.9k

950k 14.0k 1.1M

8.5V to 20.8V Connect to BSTIN/BKLED– 2.2μF 1206 X7R 25V 2.2μF 1206 X7R 50V 24V to 32V

350mA

19.6k

16.9k

950k 14.0k 1.1M

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