MIC5311 datasheet(4/11 Pages) MICREL

4 / 11 page

Micrel, Inc.

MIC5311

March 2006

M9999-032706

(408) 955-1690

Electrical Characteristics (LowQ™ Mode)

VIN = VOUT + 1.0V for higher output of the regulator pair; LowQ™ = 0V; COUT = 2.2µF, IOUT = 100µA; TJ = 25°C, bold

values indicate -40°C to +125°C, unless noted.

Parameter

Conditions

Min

Typ

Max

Units

Output Voltage Accuracy

Variation from nominal VOUT

-2.0

-3.0

+2.0

+3.0

Line Regulation

VIN = VOUT +1V to 5.5V

0.02

0.3

0.6

%/V

Load Regulation

IOUT = 100µA to 10mA

0.1

0.5

Dropout Voltage

IOUT = 10mA

100

200

Ground Pin Current

Both outputs enabled

µA

Ground Pin Current in

Shutdown

VEN < 0.2V

0.01

1.0

µA

Ripple Rejection

f = up to 1kHz; COUT = 2.2µF ceramic; CBYP = 10nF

f = 1kHz – 20kHz; COUT = 2.2µF ceramic; CBYP = 10nF

Current Limit

VOUT = 0V (Both regulators)

150

Notes:

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

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

3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(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.

4. Response time defined as the minimum hold-off time after the LowQ™ command before applying load transients.

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