LTM8073

13

8073fa

For more information www.linear.com/LTM8073

applicaTions inForMaTion

For most applications, the design process is straight-

forward, summarized as follows:

1. Look at Table 1 and find the row that has the desired

input range and output voltage.

4. Connect BIAS as indicated.

While these component combinations have been tested for

proper operation, it is incumbent upon the user to verify

proper operation over the intended system’s line, load and

environmental conditions. Bear in mind that the maximum

output current is limited by junction temperature, the

relationship between the input and output voltage mag-

nitude and polarity and other factors. Please refer to the

graphs in the Typical Performance Characteristics section

for guidance.

which the LTM8073 should be allowed to switch is given

There are additional conditions that must be satisfied if

the synchronization function is used. Please refer to the

Synchronization section for details.

BIAS

3.4V to 60V

0.8V

Open

1µF 100V 1206 X7R 2× 100µF 4V 0805 X5R

47pF

5V

450kHz

95.3k

475kHz

90.9k

3.4V to 60V

1V

1M

1µF 100V 1206 X7R 2× 100µF 4V 0805 X5R

47pF

5V

450kHz

95.3k

550kHz

76.8k

3.4V to 60V

1.2V

499k

1µF 100V 1206 X7R 2× 100µF 4V 0805 X5R

47pF

5V

500kHz

84.5k

650kHz

63.4k

3.4V to 60V

1.5V

287k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

27pF

5V

500kHz

84.5k

750kHz

54.9k

3.4V to 60V

1.8V

200k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

10pF

5V

500kHz

84.5k

900kHz

45.6k

3.4V to 60V

2V

169k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

5V

600kHz

64.8k

950kHz

42.2k

4V to 60V

2.5V

118k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

5V

800kHz

51.1k

1.2MHz

32.4K

5V to 60V

3.3V

80.6k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

5V

850kHz

47.5k

1.5MHz

24.3k

7V to 60V

5V

47.5k

1µF 100V 1206 X7R 100µF 6.3V 1206 X5R

5V

1.2MHz

32.4k

2.2MHz

16.9k

11V to 60V

8V

28k

1µF 100V 1206 X7R 47µF 16V 1210 X7R

5V

1.4MHz

26.7k

3MHZ

10k

16V to 60V

12V

17.8k

1µF 100V 1206 X7R 22µF 25V 1210 X5R

5V

1.4MHz

26.7k

3MHZ

10k

19.5V to 60V

15V

14.3k

1µF 100V 1206 X7R 22µF 25V 1210 X5R

5V

1.4MHz

26.7k

3MHZ

10k

3.4V to 56V

–3.3V

80.6k

1µF 100V 1206 X7R 100µF 4V 0805 X5R

LTM8073

GND

850kHz

47.5k

1.5MHz

24.3k

3.4V to 55V

–5V

47.5k

1µF 100V 1206 X7R 100µF 6.3V 1206 X5R

LTM8073

GND

1.2MHz

32.4k

2.2MHz

16.9k

3.4V to 52V

–8V

28k

1µF 100V 1206 X7R 47µF 16V 1210 X7R

LTM8073

GND

1.4MHz

26.7k

3MHZ

10k

3.4V to 48V

–12V

17.8k

1µF 100V 1206 X7R 22µF 25V 1210 X5R

LTM8073

GND

1.4MHz

26.7k

3MHZ

10k

3.4V to 45V

–15V

14.3k

1µF 100V 1206 X7R 22µF 25V 1210 X5R

LTM8073

GND

1.4MHz

26.7k

3MHZ

10k

Note 1: The LTM8073 may be capable of lower input voltages but may skip switching cycles.

Note 2: An input bulk capacitor is required.