MIC5213 datasheet(3/8 Pages) MICREL

3 / 8 page

June 2000

MIC5213

Micrel

Electrical Characteristics

IN = VOUT + 1V; IL = 1mA; CL = 0.47µF; VEN ≥ 2.0V; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C; unless noted.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Output Voltage Accuracy

–33

–44

∆V

O/∆T

Output Voltage Temp. Coefficient

Note 5

200

ppm/

°C

∆V

O/VO

Line Regulation

IN = VOUT + 1V to 16V

0.008

0.3

0.5

∆V

O/VO

Load Regulation

L = 0.1mA to 80mA, Note 6

0.08

0.3

0.5

IN–VO

Dropout Voltage, Note 7

L = 100µA20

L = 20mA

200

350

L = 50mA

250

L = 80mA

300

600

Quiescent Current

EN ≤ 0.4V (shutdown)

0.01

µA

GND

Ground Pin Current, Note 8

L = 100µA, VEN ≥ 2.0V (active)

180

µA

L = 20mA, VEN ≥ 2.0V (active)

225

750

µA

L = 50mA, VEN ≥ 2.0V (active)

850

µA

L = 80mA, VEN ≥ 2.0V (active)

1800

3000

µA

GNDDO

Ground Pin Current at Dropout

IN = VOUT(nominal) – 0.5V, Note 8

200

300

µA

LIMIT

Current Limit

OUT = 0V

180

250

∆V

O/∆PD

Thermal Regulation

Note 9

0.05

%/W

Enable Input

Enable Input Voltage Level

logic Low (off)

0.6

logic high (on)

2.0

Enable Input Current

IL ≤ 0.6V

0.01

µA

IH ≥ 2.0V

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:

The maximum allowable power dissipation is a function of the maximum junction temperature, T

J(max), the junction-to-ambient thermal

resistance,

JA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using:

D(max) = (TJ(max) – TA) ÷ θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator

will go into thermal shutdown.

JA of the SC-70-5 is 450°C/W, mounted on a PC board.

Note 5:

Output voltage temperature coefficient 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. Changes in output voltage due to heating effects

are covered by the 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.

Note 8:

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 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

regulation effects. Specifications are for an 80mA load pulse at V

IN = 16V for t = 10ms.

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