March 2006

3

MIC4576

MIC4576

Micrel, Inc.

Electrical Characteristics

Parameter

Condition

Min

Typ

Max

Units

MIC4576 [Adjustable]

Feedback Voltage

1.217

1.230

1.243

V

Feedback Voltage

1.193

1.230

1.267

V

1.180

1.280

V

Efficiency

77

%

Maximum Duty Cycle (On)

90

95

%

Output Leakage Current

output = 0V

0

2

mA

output = –1V

7.5

35

mA

Quiescent Current

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

3.168

3.3

3.432

V

3.135

3.465

V

Efficiency

72

%

Maximum Duty Cycle (On)

90

95

%

Output Leakage Current

output = 0V

0

2

mA

output = –1V

7.5

35

mA

Quiescent Current

5

10

mA

MIC4576-5.0

Output Voltage

4.900

5.0

5.100

V

Output Voltage

4.800

5.0

5.200

V

4.750

5.250

V

Efficiency

77

%

Maximum Duty Cycle (On)

90

95

%

Output Leakage Current

output = 0V

0

2

mA

output = –1V

7.5

35

mA

Quiescent Current

5

10

mA

Absolute Maximum Ratings

Storage Temperature................................ –65°C to +150°C

Operating Ratings

Junction Temperature.............................................. +150°C

Package Thermal Resistance