LTP8800-1A

3

Rev. B

For more information www.analog.com

ELECTRICAL CHARACTERISTICS The

l

denotes the specifications which apply over the full operating

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

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

I(VIN)

Input Standby Current

CTRL = 0V

0.1

mA

Input Supply Current

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

55

mA

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

0.22

A

IOUT = 150A, VIN = 54V, VOUT = 0.80V

2.53

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

0.4

0.5

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

3V3 Input Current

l

60

70

mA

Output Specifications

IOUT

Output Current Range

l

0

150

A

IOUT(MAX)

Output Current Limit

200

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 150A, VIN = 45V to 65V

l

0.792

0.800

0.808

V

VOUT(AC)

VOUT(P-P)

VIN = 54V, VOUT = 0.8V,

COUT = 800μF MLCC, 5.6mF POSCAP

4

mV

VOUT(RMS)

VIN = 54V, VOUT = 0.8V,

COUT = 800μF MLCC, 5.6mF 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 = 112.5A to 150A at 37.5A/μs,

COUT = 800μF MLCC, 5.6mF POSCAP

20

mV

tSETTLE

VOUT Settling Time to 1%

VIN = 54V, VOUT = 0.8V,

IOUT = 112.5A to 150A at 37.5A/μs,

COUT = 800μF MLCC, 5.6mF POSCAP

25

µs

Efficiency

VIN = 54V, VOUT = 0.8V, IOUT = 37.5A

80.0

%

VIN = 54V, VOUT = 0.8V, IOUT = 75A

86.5

%

VIN = 54V, VOUT = 0.8V, IOUT = 112.5A

86.8

%

VIN = 54V, VOUT = 0.8V, IOUT = 150A

85.6

%

Oscillator

fSW

Switching Frequency

Switching Frequency Set to 1.00 MHz

l

0.97

1.00

1.03

MHz

fSYNC

SYNC Range

l

0.93

1.0

1.06

MHz

PMBus Monitoring

IMON(OUT)

Output Current Monitor

VIN = 54V, VOUT = 0.8V, IOUT = 150A

l

±3

%

IMON(IN)

Input Current Monitor

VIN = 54V, VOUT = 0.8V, IOUT = 150A

l

±5

%