Micrel, Inc.

MIC2297

Mach 2008

3

M9999-032708

Absolute Maximum Rating

(1)

ESD Rating

Operating Range

(2)

Package Thermal Impedance

MLF

Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.5

10

V

Under-Voltage Lockout

1.8

2.1

2.4

V

Quiescent Current

4

7

mA

Shutdown Current

(4)

0.1

1

µA

(+/-5%)

190

200

210

Feedback Voltage

(+/±6.5%) (Over Temp)

187

213

mV

Feedback Input Current

-450

nA

Line Regulation

(5)

2.5V

0.5

1

%

Load Regulation

(5)

5mA

0.5

%

Maximum Duty Cycle

93

%

Switch Current Limit

1.2

1.7

2.5

A

Switch Saturation Voltage

220

mV

Switch Leakage Current

0.01

1

µA

Enable Threshold

TURN ON

TURN OFF

1.5

0.4

V

Enable Pin Current

20

40

µA

Brightness Control Accuracy

0.185

0.93

0.19

0.2

1.0

0.2

0.015

0.215

1.05

0.21

V

Oscillator Frequency

525

600

675

KHz

Over Voltage protection

MIC2297-42BML (nominal voltage)

MIC2297-15BML (nominal voltage)

40.5

15

42

16

47

18

V

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 the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction

dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.

2.

This device is not guaranteed to operate beyond its specified operating rating.

3.

IC devices are inherently ESD sensitive. Handling precautions required. Human body model.

4.

5.

Guaranteed by design.