12V PWM Controller with Hot-Swap

4

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ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SENSE Input Bias Current

-1

+1

µA

PGOOD Internal Pullup Current

10

µA

PGOOD Output-Voltage Low

50

mV

INTERNAL VOLTAGE REGULATOR

Output-Voltage Set Point

4.7

5.3

V

Line Regulation

1

mV/V

Load Regulation

150

mV

PWM OSCILLATOR

Oscillator Frequency Range

100

1000

kHz

≤ 500kHz

-2.5

+2.5

-4

+4

≤ 500kHz

-3.5

+3.5

Oscillator Accuracy

-40°C to +85°C

-5

+5

%

RT Voltage

50k

2V

Maximum Duty Cycle

82

88

%

SYNCIN High Level Voltage

2.1

V

SYNCIN Low Level Voltage

0.8

V

SYNCIN Pulldown Resistor

50

100

150

k

Ω

SYNCIN Rising to SYNCOUT

Falling Delay

10

ns

SYNCIN Falling to SYNCOUT

Rising Delay

30

ns

Maximum SYNCIN Frequency

1

MHz

SYNCOUT Voltage High

V

SYNCOUT Voltage Low

50

mV

PWM ERROR AMPLIFIER

FB Input Range

0

V

FB Input Current

-250

+250

nA

COMP Output-Voltage Range

0.25

V

Open-Loop Gain

80

dB

Unity-Gain Bandwidth

2.5

MHz

Reference Voltage

792

800

808

mV

PWM COMPARATOR

Comparator Offset Voltage

0.3

V

Comparator Propagation Delay

40

ns

PWM DIGITAL SOFT-START

Soft-Start Duration

1024

Clocks

128

Steps

Reference Voltage Steps

6.3

mV