MIC5202

Micrel

March 2006

3

MIC5202

Note 1:

Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do

not apply when operating the device outside of its rated operating conditions. The maximum allowable power dissipation is

a function of the maximum junction temperature, T

perature, T

/

θ

go into thermal shutdown. The junction to ambient thermal resistance of the MIC5202BM is 160°C/W mounted on a PC

board.

Note 2:

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

range.

Note 3:

Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regula-

tion in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal

regulation specification.

Note 4:

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 5:

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 6:

Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, ex-

cluding load or line regulation effects. Specifications are for a 100mA load pulse at V

0

50

100

150

200

250

0.01

0.1

1

10

100

1000

OUTPUT CURRENT (mA)

Dropout Voltage

vs. Output Current

0.0

0.1

0.2

0.3

0.4

-60 -30

0

30

60

90 120 150

TEMPERATURE (°C)

Dropout Voltage

vs. Temperature

I

I

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

02468

10

INPUT VOLTAGE (V)

Dropout

Characteristics

I

I

0.1

1

10

0.01

0.1

1

10

100

OUTPUT CURRENT (mA)

Ground Current

vs. Output Current

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

02468

10

SUPPLY VOLTAGE (V)

Ground Current

vs. Supply Voltage

I

I

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0.0

0.1

0.2

0.3

OUTPUT CURRENT (A)

Output Voltage

vs. Output Current

C

C