LTP8803-1A

3

Rev. 0

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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

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

0.25

0.30

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

160

A

IOUT(MAX)

Output Current Limit

200

A

VOUT

Regulated Output Voltage

IOUT = 0A, VIN = 54V, VOUT Set to 1.200V,

TJ = 25°C

1.194

1.200

1.206

V

IOUT = 0A, VIN = 54V, VOUT Set to 1.200V,

TJ = 0°C to 125°C

l

1.182

1.200

1.218

V

VOUT(LOAD+LINE)

Line + Load Regulation

IOUT = 0A to 160A, VIN = 45V to 65V

l

1.188

1.200

1.212

V

VOUT(AC)

VOUT(PK-PK)

VIN = 54V, VOUT = 1.20V,

COUT = 800µF MLCC, 5.6mF POSCAP

5.3

mV

VOUT(RMS)

VIN = 54V, VOUT = 1.20V,

COUT = 800µF MLCC, 5.6mF POSCAP

2.1

mV

TSTART

Start Time

CTRL High to VOUT = 1.20V

3

ms

TSTOP

Stop Time

CTRL Low to Output Disable

10

µs

ΔVOUT(LS)

Maximum Output Voltage Excursion

for Dynamic Load Step

VIN = 54V, VOUT = 1.20V,

IOUT = 120A to 160A at 40A/μs,

COUT = 800µF MLCC, 5.6mF POSCAP

30

mV

TSETTLE

VOUT Settling Time to 1%

VIN = 54V, VOUT = 1.20V,

IOUT = 120A to 160A at 40A/μs,

COUT = 800µF MLCC, 5.6mF POSCAP

50

µs

Efficiency

VIN = 54V, VOUT = 1.20V, IOUT = 40A

88.3

%

VIN = 54V, VOUT = 1.20V, IOUT = 80A

91.7

%

VIN = 54V, VOUT = 1.20V, IOUT = 120A

91.7

%

VIN = 54V, VOUT = 1.20V, IOUT = 160A

90.7

%

Oscillator

fSW

Switching Frequency

Switching Frequency Set to 600kHz

l

582

600

618

kHz

fSYNC

SYNC Range

l

556

600

640

kHz

PMBus Monitoring

IMON(OUT)

Output Current Monitor

VIN = 54V, VOUT = 1.20V, IOUT = 160A

l

±3

%

IMON(IN)

Input Current Monitor

VIN = 54V, VOUT = 1.20V, IOUT = 160A

l

±5

%

VOUTMON

Output Voltage Monitor

VIN = 54V, VOUT = 1.20V, IOUT = 0A,

TJ = 25°C

±0.5

%

VIN = 54V, VOUT = 1.20V, IOUT = 0A,

TJ = 0°C to 125°C

l

–1.5

+1.5

%