Micrel, Inc.

MIC2299

October 2007

3

M9999-101907-B

Absolute Maximum Ratings

(1)

ESD Rating

Operating Ratings

(2)

Package Thermal Impedance

3x3 MLF-12 (

Electrical Characteristics

(4)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.5

10

V

Under-Voltage Lockout

1.8

2.1

2.4

V

Over-Voltage Protection

12

13.5

15

V

Quiescent Current

15

23

mA

Shutdown Current

0.1

1

µA

Feedback Voltage

(±8%)

(±10%) (Over Temp)

184

180

200

216

220

mV

mV

Feedback Input Current

–450

nA

Line Regulation

2.5V

0.5

%

LED Dimming Accuracy

17

45

20

50

23

55

%

%

Maximum Duty Cycle

90

%

Switch Current Limit

3.5

4.75

8

A

Switch Saturation Voltage

350

500

mV

Switch Leakage Current

0.01

10

µA

Enable Threshold

TURN ON

TURN OFF

1.5

0.4

V

V

Enable Pin Current

20

40

µA

Oscillator Frequency

MIC2299

1.75

2

2.3

MHz

Soft start / DIM current

DIM = 0V

5

µA

150

°C

Over-Temperature Threshold

Shutdown

Hysteresis

10

°C

Notes:

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

junction-to-ambient thermal resistance,

temperature, and the regulator will go into thermal shutdown.

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

3. Devices are ESD sensitive. Handling precautions recommended.

4. Specification for packaged product only.