Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

48V Micro Family

Rev. 5.3

Page 2 of 8

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Parameter

Min

Typ

Max

Unit

Notes

Operating input voltage

36

48

75

Vdc

Input surge withstand

100

Vdc

<100ms

Output voltage setpoint

±1%

Vout nom.

Nominal input; full load; 25°C

Parameter

Min

Typ

Max

Unit

Notes

Line regulation

±0.02

±0.2

%

Low line to high line; full load

Temperature regulation

±0.002

±0.005

% / °C

Over operating temperature range

Power sharing accuracy

±2

±5

%

10 to 100% of full load

Programming range

10

110

%

Of nominal output voltage. For trimming below 90%

of nominal, a minimum load of 10% of maximum

rated power may be required.

Parameter

Min

Typ

Max

Unit

Notes

Undervoltage turn-on

34.9

35.7

Vdc

Undervoltage turn-off

29.4

30.5

Vdc

Overvoltage turn-off/on

75.7

78.8

82.5

Vdc

MODULE OPERATING SPECIFICATIONS

MODULE INPUT SPECIFICATIONS

MODULE OUTPUT SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature,

unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate.

Parameter

2V

5V

12V

15V

24V

28V

48V

Unit

Notes

Efficiency (typ.)

71.6

72.0

77.3

78.0

82.0

86.0

87.0

87.0

87.5

88.5

%

Nominal input; 80% load; 25°C

Ripple and noise, p-p (typ.)

73

85

63

75

70

170

120

150

110

60

mV

Nominal input; full load;

25°C; 20MHz BW

Output power (max.)

45

50

57

75

100

150

150

150

150

150

Watts

At 100°C baseplate temperature

Output OVP setpoint (nom.)

2.8

2.8

4.3

4.3

6.3

14.3

17.8

28.1

32.7

55.7

Volts

25°C; recycle input voltage to

restart ( 1 minute off )

Dissipation, standby (typ.)

3.3

3.3

3.0

3.0

3.3

3.5

4.0

4.0

2.6

2.9

Watts

No load; nominal input

Load regulation (max.)

0.5

0.5

0.4

0.4

0.2

0.2

0.2

0.2

0.2

0.2

±% Vout

No load to full load; nominal input

Current limit (typ.)

115

115

115

115

115

115

115

115

115

115

% Iout

Output voltage 95% of nominal

Short circuit current (typ.)

115

115

115

115

115

115

115

115

115

115

% Iout.

Output voltage <250mV

MODULE OUTPUT VOLTAGE RELATED SPECIFICATIONS

1

Nominal 2V output trimmed to 1.8V by adding external 9,000 ohm resistor from the SC pin to -Out pin. (See Fig. 7)

2

Nominal 3.3V output trimmed to 2.5V by adding external 3,125 ohm resistor from the SC pin to -Out pin. (See Fig. 7)

Note: For important information relative to applications where the converter modules are subject to continuous dynamic loading,

contact Vicor applications engineering at 800-927-9474.