Micrel Inc.

MIC23031

May 2008

3

M9999-051608-A

Absolute Maximum Ratings

(1)

Output Switch Voltage

..................................................6V

Storage Temperature Range .. ……………-65

°C to +150°C

ESD Rating

Operating Ratings

(2)

Thermal Resistance

1.6 x 1.6mm Thin MLF

Electrical Characteristics

(4)

Bold

values indicate –40°C

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.7

5.5

V

Under-Voltage Lockout Threshold

(turn-on)

2.45

2.55

2.65

V

Quiescent Current

21

35

µA

Shutdown Current

0.01

4

µA

Output Voltage Accuracy

-2.5

+2.5

%

Feedback Voltage

Adjustable Option Only

0.62

V

Current Limit

0.41

0.7

1

A

Output Voltage Line Regulation

0.3

%/V

Output Voltage Load Regulation

3.6V

0.7

%

PWM Switch ON-Resistance

0.65

0.8

Ω

Frequency

4

MHz

SoftStart Time

100

µs

Enable Threshold

0.5

0.9

1.2

V

Enable Input Current

0.1

2

µA

Over-temperature Shutdown

160

°C

Over-temperature Shutdown Hysteresis

20

°C

1. Exceeding the absolute maximum rating may damage the device.

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

3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.

4. Specification for packaged product only.