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V•I Chip Bus Converter Module

B048F015T14

Rev. 1.8

Page 3 of 12

V•I Chip Bus Converter Module

Parameter

Min

Typ

Max

Unit

Note

Output voltage

1.19

1.71

Vdc

No load

1.08

1.61

Vdc

Full load

Rated DC current

0

90

Adc

Peak repetitive power

203

W

Max pulse width 1ms, max duty cycle 10%,

baseline power 50%

Current share accuracy

5

10

%

See Parallel Operation on Page 10

Efficiency

Half load

89.5

91.0

%

See Figure 5

Full load

89.5

90.8

%

See Figure 5

Internal output inductance

1.6

nH

Internal output capacitance

306

µF

Effective value

Load capacitance

64,400

µF

Output overvoltage setpoint

1.7

Vdc

Module will shut down

Output ripple voltage

No external bypass

100

200

mVp-p

See Figures 7 and 9

94 µF bypass capacitor

14

mVp-p

See Figure 8

Short circuit protection set point

100

Adc

Module will shut down

Average short circuit current

13.5

A

Effective switching frequency

2.8

2.9

3.0

MHz

Fixed, 1.5 MHz per phase

Line regulation

K

0.0309

1/32

0.0316

Load regulation

0.9

1.3

mΩ

Transient response

Voltage overshoot

60

mV

100% load step; See Figures 10 and 11

Response time

200

ns

See Figures 10 and 11

Recovery time

1

µs

See Figures 10 and 11

Output overshoot

Input turn-on

0

mV

No output filter; See Figure 3

PC enable

0

mV

No output filter; See Figure 2

Output turn-on delay

From application of power

88

ms

No output filter; See Figure 3

From release of PC pin

35

ms

No output filter

Efficiency vs. Output Power

70

75

80

85

90

95

0

15

30

45

60

75

90

105

120

135

Output Power (W)

Figure 5 — Efficiency vs. output power

Power Dissipation

4

6

8

10

12

14

16

0

15304560

7590

105

120

135

Output Power (W)

Figure 6 — Power dissipation as a function of output power

Output Waveforms