590

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Output Voltage

4.875

5.000

5.125

V

Maximum Input Voltage

10

-

-

V

Operation Start Voltage

-

-

0.90

V

Operation Start Voltage

Lx : 10kΩ pull-up to 5V

-

-

0.80

V

No Load Input Current

-

12.8

25.7

μ

A

Supply Current 1

-

80.2

133.8

μ

A

Supply Current 2

-

8.2

16.5

μ

A

Lx Switch-On

Resistance

-

1.4

2.4

Ω

Lx Leak Current

-

-

1.0

μ

A

Oscillation Frequency

FOSC

85

100

115

kHZ

Maximum Duty Ratio

MAXDTY

80

87

92

%

PFM Duty Ratio (*4)

PFMDTY

10

17

25

%

Stand-by Current

-

-

0.5

μ

A

CE "High" Voltage

0.75

-

-

V

CE "Low" Voltage

-

-

0.20

V

CE "High" Current

-

-

0.25

μ

A

CE "Low" Current

-

-

-0.25

μ

A

Lx Limit Voltage

Voltage required to produce FOSC×2

0.7

-

1.3

V

Efficiency

EFFI

-

85

-

%

Slow-Start Time

4.0

10.0

20.0

ms

XC6371/72C501PR

Ta=25℃

*2: "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically

operates which results in less average power consumption. The current actually provided by an external VIN source is represented by

*3: When PWM operates at PWM Mode.

*4: When PFM operates at PFM Mode.(XC6372C)

■

ELECTRICAL CHARACTERISTICS (Continued)