LTM8083 datasheet(17/22 Pages) AD

17 / 22 page

LTM4693

Rev. 0

For more information www.analog.com

SAFETY CONSIDERATIONS

The LTM4693 modules do not provide galvanic isolation

from VIN to VOUT. There is no internal fuse. If required,

a slow blow fuse with a rating twice the maximum input

current needs to be provided to protect each unit from

catastrophic failure. The device does support thermal

shutdown and short-circuit protection.

APPLICATIONS INFORMATION

Table 2. 1.8V Output

DERATING CURVE

VIN (V)

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

θJA (°C/W)

Figure 9, Figure 12

3.3, 5

Figure 6

None

Figure 9, Figure 12

3.3, 5

Figure 6

200

None

Figure 9, Figure 12

3.3, 5

Figure 6

400

None

Table 3. 3.3V Output

DERATING CURVE

VIN (V)

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

θJA (°C/W)

Figure 10, Figure 13

3.3, 5

Figure 7

None

Figure 10, Figure 13

3.3, 5

Figure 7

200

None

Figure 10, Figure 13

3.3, 5

Figure 7

400

None

Table 4. 5V Output

DERATING CURVE

VIN (V)

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

θJA (°C/W)

Figure 11 ,Figure 14

3.3, 5

Figure 8

None

Figure 11 ,Figure 14

3.3, 5

Figure 8

200

None

Figure 11 ,Figure 14

3.3, 5

Figure 8

400

None

LAYOUT CHECKLIST/EXAMPLE

The high integration of LTM4693 makes the PCB board

layout very simple and easy. However, to optimize its

electrical and thermal performance, some layout consid-

erations are still necessary.

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