MIC4576

Micrel

MIC4576

4-130

April 1998•

Electrical Characteristics

V

Parameter

Condition

Min

Typ

Max

Units

MIC4576 [Adjustable]

Feedback Voltage

1.217

1.230

1.243

V

Feedback Voltage

8V

≤ V

1.193

1.230

1.267

V

1.180

1.280

V

Efficiency

I

77

%

Maximum Duty Cycle (On)

V

90

95

%

Output Leakage Current

V

output = 0V

0

2

mA

output = –1V

7.5

30

mA

Quiescent Current

V

5

10

mA

Feedback Bias Current

50

100

nA

500

nA

MIC4576-3.3

Output Voltage

3.234

3.3

3.366

V

Output Voltage

6V

≤ V

3.168

3.3

3.432

V

3.135

3.465

V

Efficiency

I

72

%

Maximum Duty Cycle (On)

V

90

95

%

Output Leakage Current

V

output = 0V

0

2

mA

output = –1V

7.5

30

mA

Quiescent Current

V

5

10

mA

MIC4576-5.0

Output Voltage

4.900

5.0

5.100

V

Output Voltage

8V

≤ V

4.800

5.0

5.200

V

4.750

5.250

V

Efficiency

I

77

%

Maximum Duty Cycle (On)

V

90

95

%

Output Leakage Current

V

output = 0V

0

2

mA

output = –1V

7.5

30

mA

Quiescent Current

V

5

10

mA

Absolute Maximum Ratings

Supply Voltage (V

Shutdown Voltage (V

Output Switch (V

Feedback Voltage (V

Storage Temperature ............................... –65

°C to +150°C

Operating Ratings

Supply Voltage (V

Junction Temperature ............................................. +150

°C

Package Thermal Resistance

TO-220, TO-263 (

θ

TO-220, TO-263 (

θ