MIC5206

Micrel

MIC5206

4

January 2000

Note 1:

Exceeding the absolute maximum rating may damage the device.

Note 2.

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

Note 3:

The maximum allowable power dissipation at any T

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

θ

MIC5205-x.xBM5 (all versions) is 220

°C/W, and the MIC5206-x.xBMM (all versions) is 200°C/W, mounted on a PC board (see “Thermal

Considerations” for further details).

Note 4:

Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.

Note 5:

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 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.

Note 6:

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.

Note 7:

Ground pin current is the regulator quiescent current 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 8:

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

regulation effects. Specifications are for a 150mA load pulse at V

Note 9:

The error flag comparator includes 3% hysteresis.

-100

-80

-60

-40

-20

0

1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7

FREQUENCY (Hz)

Power Supply

Rejection Ratio

I

C

V

V

10

100

1k

10k 100k 1M 10M

-100

-80

-60

-40

-20

0

1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7

FREQUENCY (Hz)

Power Supply

Rejection Ratio

I

C

C

V

V

10

100

1k

10k 100k 1M 10M

0

10

20

30

40

50

60

0

0.1

0.2

0.3

0.4

VOLTAGE DROP (V)

Power Supply Ripple Rejection

vs. Voltage Drop

I

10mA

1mA

C

-100

-80

-60

-40

-20

0

1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7

FREQUENCY (Hz)

Power Supply

Rejection Ratio

I

C

V

V

10

100

1k

10k 100k 1M 10M

-100

-80

-60

-40

-20

0

1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7

FREQUENCY (Hz)

Power Supply

Rejection Ratio

I

C

C

V

V

10

100

1k

10k 100k 1M 10M

0

10

20

30

40

50

60

70

80

90

100

0

0.1

0.2

0.3

0.4

VOLTAGE DROP (V)

Power Supply Ripple Rejection

vs. Voltage Drop

I

10mA

1mA

C

C

Typical Characteristics