LTM4705

18

Rev. 0

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APPLICATIONS INFORMATION

Table 5. 2.5V Output

DERATING CURVE

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

Figure 17, Figure 18

5, 12

Figure 10

0

None

17

Figure 17, Figure 18

5, 12

Figure 10

200

None

14

Table 6. 3.3V Output

DERATING CURVE

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

Figure 19, Figure 20

5, 12

Figure 11

0

None

17

Figure 19, Figure 20

5, 12

Figure 11

200

None

14

Table 7. 5V Output

DERATING CURVE

POWER LOSS CURVE

AIR FLOW (LFM)

HEAT SINK

Figure 21

12

Figure 12

0

None

17

Figure 21

12

Figure 12

200

None

14

Table 8. Output Voltage Response for Each Regulator Channel vs Component Matrix (Refer to Figure 23)

1.25A Load Step Typical Measured Values

(CERAMIC)

(μF)

(CERAMIC)

(μF)

(V)

P-P

DERIVATION

(mV)

RECOVERY

TIME

(μS)

LOAD STEP

(A)

LOAD STEP

SLEW RATE

(A/μS)

(kΩ)

1

22

100

100

5, 12

60

50

2.5

10

90.9

1.2

22

100

100

5, 12

60

50

2.5

10

60.4

1.5

22

100

100

5, 12

60

50

2.5

10

40.2

1.8

22

100

100

5, 12

60

50

2.5

10

30.1

2.5

22

100

100

5, 12

68

50

2.5

10

19.1

3.3

22

100

100

5, 12

90

50

2.5

10

13.3

5

22

100

100

12

133

50

2.5

10

8.25