Micrel, Inc.

MIC49500

July 2007

4

M9999-071307

Absolute Maximum Ratings

(1)

Power Dissipation............................. Internally Limited

Storage Temperature (TS) ........... -65°C ≤ TJ ≤ 150°C

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

ESD Rating

Operating Ratings

(2)

Package Thermal Resistance

S-Pak (

TO-263 (

Electrical Characteristics

(4)

unless noted.

Parameter

Conditions

Min

Typ

Max

Units

Output Voltage Accuracy

At 25°C, fixed voltage options

Over temperature range

–1

–2

+1

+2

%

%

Output Voltage Line

Regulation

-0.1

+0.1

%/V

Output Voltage Load

Regulation

0.2

1.0

%

145

290

300

500

mV

mV

1.5

1.7

2.0

2.1

V

V

Ground Pin Current

55

55

55

75

90

90

130

mA

mA

mA

mA

Ground Pin Current in

Shutdown

0.1

5

µA

30

70

50

150

mA

mA

Current Limit

5.5

7.5

9.5

A

Feedback Current

50

1000

nA

Enable Input

Enable Input Threshold

Regulator enable

Regulator shutdown

1.6

1.2

1.15

0.6

V

V

Enable Hysteresis

20

50

150

mV

Enable Pin Input Current

0.1

5

µA

Turn-on Time

10

45

µs

Reference Voltage (Adjustable Output Only)

0.693

0.7

0.707

V

0.686

0.714

V

Notes

:

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, 1.5k in series with 100pF.

4. Specification for packaged product only.

5. Turn-on time is measured from 10% of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator.