July 1999

3

MIC29310/29312

MIC29310/29312

Micrel

Electrical Characteristics

T

Parameter

Condition

Min

Typ

Max

Units

Output Voltage

10mA

≤ I

–2

2

%

Line Regulation

I

0.06

0.5

%

Load Regulation

V

0.2

1

%

∆V

Output Voltage Temperature Coefficient, Note 8

20

100

ppm/

°C

Dropout Voltage

∆V

I

80

200

mV

I

220

mV

I

330

mV

I

600

1000

mV

Ground Current

I

5

20

mA

I

15

mA

I

60

150

mA

I

V

2

3

mA

Current at Dropout

Current Limit

V

3.0

3.8

A

Minimum Load Current

710

mA

e

C

µV

RMS

(10Hz to 100kHz) I

C

µV

RMS

Reference (MIC29312 only)

Reference Voltage

10mA

≤ I

1.215

1.265

V

MAX

Adjust Pin Bias Current

40

80

nA

120

nA

Reference Voltage

Note 9

20

ppm/

°C

Temperature Coefficient

Adjust Pin Bias Current

0.1

nA/

°C

Temperature Coefficient

Enable Input (MIC29312 only)

Input Logic Voltage

low (off)

0.8

V

high (on)

2.4

V

Enable Pin Input Current

V

15

30

µA

75

µA

V

–

2

µA

4

µA

Regulator Output

Note 10

10

µA

Current in Shutdown

20

µA

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.

Devices are ESD sensitive. Handling precautions recommended.

Note 4:

Full Load current is defined as 3A for the MIC29310/29312. For testing, V

Note 5:

Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with V

to V

Note 6:

For this test, V

Note 7:

Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground

pin current.

Note 8:

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

Note 9:

V

Note 10: V