LTP8800-4A

3

Rev. A

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ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Supply

VIN

Input Operating Range

l

45

65

V

VIN(UVLO)

Input Undervoltage

VIN Rising

38

40

42

V

VIN Falling

36

38

40

V

VIN(OVLO)

Input Overvoltage

VIN Rising

67

70

73

V

VIN Falling

65

68

71

V

I(VIN)

Input Standby Current

CTRL = 0V

0.1

mA

Input Supply Current

IOUT = 0A, VIN = 54V, VOUT = 0.80V

58

mA

IOUT = 10A, VIN = 54V, VOUT = 0.80V

0.20

A

IOUT = 200A, VIN = 54V, VOUT = 0.80V

3.39

A

7V0 Supply

7V0

7V0 Operating Range

l

6.5

7

7.5

V

7V0(UVLO)

7V0 Undervoltage

7V0 Rising

l

4.5

V

7V0 Falling

l

3.5

V

I7V0

7V0 Input Current

l

0.22

0.29

A

3V3 Supply

3V3

3V3 Operating Range

l

3.0

3.3

3.6

V

3V3(UVLO)

3V3 Undervoltage

3V3 Rising

l

3.0

V

3V3 Falling

l

2.75

V

I3V3(MAX)

3V3 Max Input Current

l

60

70

mA

Output Specifications

IOUT

Output Current Range

l

0

200

A

IOUT(MAX)

Output Current Limit

250

A

VOUT

Regulated Output Voltage

IOUT = 0A, VIN = 54V, VOUT Set to 0.800V,

TJ = 25°C

0.796

0.800

0.804

V

IOUT = 0A, VIN = 54V, VOUT Set to 0.800V,

TJ = 0°C to 125°C

l

0.788

0.800

0.812

V

VOUT(LOAD+LINE)

Line + Load Regulation

IOUT = 0A to 200A, VIN = 45V – 65V

l

0.792

0.800

0.808

V

VOUT(AC)

VOUT(PK-PK)

VIN = 54V, VOUT = 0.8V,

COUT = 800µF MLCC, 8.96mF POSCAP

4

mV

VOUT(RMS)

VIN = 54V, VOUT = 0.8V,

COUT = 800µF MLCC, 8.96mF POSCAP

1.6

mV

TSTART

Start Time

CTRL High to VOUT = 0.8V

10

ms

TSTOP

Stop Time

CTRL Low to Output Disable

10

µs

ΔVOUT(LS)

Maximum Output Voltage Excursion

for Dynamic Load Step

VIN = 54V, VOUT = 0.8V

IOUT = 150A to 200A at 50A/µs

COUT = 800µF MLCC, 8.96mF POSCAP

20

mV

TSETTLE

VOUT Settling Time to 1%

VIN = 54V, VOUT = 0.8V

IOUT = 150A to 200A at 50A/µs

COUT = 800µF MLCC, 8.96mF POSCAP

45

µs

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C.