6A, 2MHz Step-Down Regulator

with Integrated Switches

4

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

noted.) (Note 3)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Ω

0.9

1

1.1

LX Switching Frequency

Ω

1.8

2

2.2

MHz

Switching Frequency Range

500

2000

kHz

LX Minimum Off-Time

78

ns

LX Maximum Duty Cycle

Ω

92

95

%

LX Minimum Duty Cycle

Ω

515

%

Average Short-Circuit IN Supply

Current

0.35

A

RMS LX Output Current

6A

ENABLE

EN Input Logic-Low Threshold

EN falling

0.9

V

EN Input Logic-High Threshold

EN rising

1.5

V

EN Input Current

0.01

μA

MODE

Logic-low, falling

26

50

MODE Input-Logic Threshold

Logic-high, rising

74

MODE Input-Logic Hysteresis

MODE falling

5

MODE = GND

-5

MODE Input Bias Current

5

μA

SS

SS Current

6.7

8

9.3

μA

THERMAL SHUTDOWN

Thermal-Shutdown Threshold

Rising

165

°C

Thermal-Shutdown Hysteresis

25

°C

POWER GOOD (PWRGD)

88

90

92

Power-Good Threshold Voltage

92.5

%

Power-Good Edge Deglitch

48

Clock

cycles

PWRGD Output-Voltage Low

0.03

0.1

V

PWRGD Leakage Current

0.01

μA

HICCUP OVERCURRENT LIMIT

Current-Limit Startup Blanking

112

Clock

cycles

Autoretry Restart Time

896

Clock

cycles