Micrel, Inc.

MIC5265

April 2005

4

M9999-041505

(408) 955-1690

Absolute Maximum Ratings

(1)

(3)

Lead Temperature (soldering, #sec.) ...........-55°C to 150°C

EDS Rating

Operating Ratings

(2)

Junction Thermal Resistance

Thin SOT-23-5 (

θ

Electrical Characteristics

(5)

+85°C; unless noted.

Parameter

Condition

Min

Typ

Max

Units

Output Voltage Accuracy

-2

-3

2

3

%

%

Line Regulation

0.05

0.2

%

Load Regulation

2

3

%

Dropout Voltage

75

210

500

mV

mV

Quiescent Current

0.2

2

µA

Ground Pin Current

75

80

120

150

PSRR (Ripple Rejection)

62

64

64

dB

dB

dB

Current Limit

225

mA

Output Noise

100kHz

57

(rms)

Enable Input (EN1 and EN2)

Enable Input Logic Low

0.2

V

Enable Input Logic High

1.6

V

Enable Input Current

0.01

0.01

Thermal Shutdown

Thermal Shutdown Temperature

150

°C

Hysteresis

10

°C

Turn-on/Turn-off Characteristics

Turn-on Time

40

150

Discharge Resistance

500

Ω

Notes:

1.

Exceeding the absolute maximum rating may damage the device.

2.

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

3.

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

versions) is 235

°C/W on a PC board (see ”Thermal Considerations” section for further details).

4.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.

5.

Specification for packaged product only.