Micrel, Inc.

MIC5249

March 2012

3

M9999-030812

Absolute Maximum Ratings

(1)

(3)

Lead Temperature (soldering, 5sec.)......................... 260°C

ESD Rating

Operating Ratings

(2)

Package Thermal Resistance

Electrical Characteristics

Parameter

Condition

Min.

Typ.

Max.

Units

Output Voltage Accuracy

–1.0

–3.0

+1.0

+3.0

%

Line Regulation

–0.3

0.02

+0.3

%/V

Load Regulation

1.5

3.0

%

1

160

225

275

Dropout Voltage

340

500

600

mV

85

150

Ground Pin Current

100

200

µA

Ground Pin Current in Shutdown

0.35

1

µA

Ripple Rejection

65

dB

Current Limit

300

440

mA

Enable Input

Logic low (regulator shutdown)

0.4

Enable Input Voltage

Logic high (regulator enabled)

1.6

V

0.01

Enable Input Current

0.01

µA

Delay Input

Delay Pin Current Source

0.55

1

µA

Delay Pin Threshold Voltage

Threshold for RESET = Logic high

1.40

V

RESET Output

89

91

93

96

%

in fault condition

0.020

0.1

V

Flag leakage current, Flag OFF

0.01

µA

Notes:

1.

Exceeding the absolute maximum rating may damage the device.

2.

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

3.

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

4.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k

Ω in series with 100pF.