MIC5252

Micrel, Inc.

February 2005

3

M9999-020305

Symbol

Parameter

Conditions

Min

Typical Max

Units

Output Voltage Accuracy

–1

1

%

–3

3

%

Line Regulation

0.02

0.2

%

Load Regulation

0.6

1.5

%

0.1

5

mV

90

150

mV

135

200

mV

250

mV

Quiescent Current

0.2

1

µA

90

150

µA

117

200

µA

PSRR

63

dB

48

dB

48

dB

Current Limit

250

425

mA

Output Voltage Noise

30

µV(rms)

f = 10Hz to 100kHz

Enable Input

Enable Input Logic-Low Voltage

0.4

V

Enable Input Logic-High Voltage

1.6

V

Enable Input Current

0.01

1

µA

0.01

1

µA

Shutdown Resistance Discharge

500

Ω

Thermal Protection

Thermal Shutdown Temperature

150

°C

Thermal Shutdown Hysteresis

10

°C

Notes:

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

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

sions) is 235°C/W on a PC board. See ”Thermal Considerations” section for further details.

4. Devices are ESD sensitive. Handling precautions recommended.

5. Specification for packaged product only.

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

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 differen-

tial. For outputs below 2.7V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.7V. Minimum input operating

voltage is 2.7V.

8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin cur-

rent.

Storage Temperature................................ –65°C to +150°C

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

Thermal Resistance