May 2006

3

MIC5211

MIC5211

Micrel, Inc.

Absolute Maximum Ratings (Note 1)

Storage Temperature Range .................... –60°C to +150°C

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

ESD,

(Note 3)......................................................................

Electrical Characteristics

for one-half of dual MIC5211; unless noted.

Symbol

Parameter

Conditions

Min

Typical Max

Units

Output Voltage

–3

3

%

Accuracy

–4

4

%

Output Voltage

Note 5

50

200

ppm/°C

Temperature Coeffcient

Line Regulation

0.008

0.3

%

0.5

%

Load Regulation

0.08

0.3

%

0.5

%

Dropout Voltage,

Note 7

20

mV

200

450

mV

250

500

mV

Quiescent Current

0.01

10

µA

Ground Pin Current

90

µA

Note 8

225

450

µA

750

1200

µA

Current Limit

140

250

mA

Thermal Regulation

Note 9

0.05

%/W

Enable Input

Enable Input Voltage Level

logic low (off)

0.6

V

logic high (on)

2.0

V

Enable Input Current

0.01

1

µA

3

50

µA

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

Note 2: The device is not guareented to function outside itsperating rating.

Note 3: Devices are ESD sensitive. Handling precautions recommended.

SOT-23-6 mounted on a printed circuit board.

Note 5: Output voltage temperature coeffiecient is defined as the worst case voltage change divided by the total temperature range.

Note 6: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load

range from 0.1mA to 50mA. Change in output voltage due to heating effects are covered by thermal regulation specification.

Note 7: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V

differential. For output voltages below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum voltage being 2.5V.

Minimum input opertating voltage is 2.5V.

Note 8: Ground pin current is the quiescent current per regulator plus pass transistor base current. The total current drawn from the supply is the sum

of the load current plus the ground pin current.

Note 9: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line

Operating Ratings (Note 2)

1.8V only................................................... 0°C to +125°C