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DS20006678A-page 3

MIC5321

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Supply Input Voltage (VIN) ................................................................................................................................ 0V to +6V

Enable Input Voltage (VEN) ............................................................................................................................... 0V to +6V

Power Dissipation (PD) Note 1...............................................................................................................Internally Limited

ESD Rating (Note 2) .................................................................................................................................................. 2 kV

Operating Ratings ‡

Supply Input Voltage (VIN) ........................................................................................................................ +2.3V to +5.5V

Enable Input Voltage (VEN) .................................................................................................................................0V to VIN

† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the device at those or any other conditions above those indicated

in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended

periods may affect device reliability.

‡ Notice: The device is not guaranteed to function outside its operating ratings.

Note 1: The maximum allowable power dissipation at 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 reg-

ulator will go into thermal shutdown.

2: Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5 kΩ in series with

100 pF.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: VIN = EN = VOUT + 1.0V; higher of the two regulator outputs, IOUTLDO1 = IOUTLDO2 =

100 µA; COUT1 = COUT2 = 1 µF; CBYP = 0.01 µF; TJ = 25°C, bold values valid for –40°C ≤ TJ ≤ +125°C, unless noted.

(Note 1)

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

Output Voltage Accuracy

VOUT

–2.0

—

2.0

Variation from nominal VOUT

–3.0

—

3.0

Variation from nominal VOUT;

–40°C to +125°C

Line Regulation

ΔVOUT/

(VOUT x

ΔVIN)

—

0.02

0.3

%/V

VIN = VOUT + 1V to 5.5V;

IOUT = 100 µA

—

0.6

Load Regulation

ΔVOUT/

VOUT

—

0.5

2.0

IOUT = 100 µA to 150 mA

Dropout Voltage (Note 2)

VDO

—

0.1

—

IOUT = 100 µA

—

IOUT = 50 mA

—

IOUT = 100 mA

—

100

IOUT = 150 mA

Ground Current

IGND

—

150

190

µA

EN = High; IOUT1 = 150 mA,

IOUT2 = 150 mA

Ground Current in Shutdown

ISHDN

—

0.01

µA

EN1 ≤ 0.2V

Ripple Rejection

PSRR

—

f = 1 kHz; COUT = 1.0 µF;

CBYP = 0.1 µF

—

f = 20 kHz; COUT = 1.0 µF;

CBYP = 0.1 µF

Current Limit

ILIM

300

550

950

VOUT = 0V

Output Voltage Noise

—

µVRMS

COUT = 1.0 µF; CBYP = 0.01 µF;

10 Hz to 100 kHz

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