Micrel, Inc.

MIC2290

October 2007

3

M9999-101907

Absolute Maximum Ratings

(1)

ESD Rating

Operating Ratings

(2)

Package Thermal Resistance

2x2 MLF-8 (

Electrical Characteristics

(4)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.5

10

V

Undervoltage Lockout

1.8

2.1

2.4

V

Quiescent Current

2.5

5

mA

Shutdown Current

0.2

1

µA

Feedback Voltage

(±1%)

(±2%) (Over Temp)

1.227

1.215

1.24

1.252

1.265

V

V

Feedback Input Current

–450

nA

Line Regulation

0.1

1

%

Load Regulation

0.2

%

Maximum Duty Cycle

85

90

%

Switch Current Limit

0.75

A

Switch Saturation Voltage

450

mV

Switch Leakage Current

0.01

5

µA

Enable Threshold

Turn on

Turn off

1.5

0.4

V

V

Enable Pin Current

20

40

µA

Oscillator Frequency

1.05

1.2

1.35

MHz

Schottky Forward Drop

0.8

1

V

Schottky Leakage Current

4

µA

Overvoltage Protection

(nominal voltage)

30

32

34

V

Overtemperature

Threshold Shutdown

Hysteresis

150

10

°C

°C

Notes:

1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating

temperature, and the regulator will go into thermal shutdown.

2. The device is not guaranteed to function outside its operating rating.

3. IC devices are inherently ESD sensitive. Handling precautions required. Human body model rating: 1.5K in series with 100pF.

4. Specification for packaged product only.