MIC5304 datasheet(3/12 Pages) MICREL

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Micrel, Inc.

MIC5304

November 2008

M9999-111908-A

Absolute Maximum Ratings

(1)

Supply Voltage (VIN)........................................ –0.3V to +6V

Enable/Select Voltage (VEN/VSEL)...................... –0.3V to VIN

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

(3)

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

Junction Temperature(TJ) .........................–40°C to +125°C

Storage Temperature (Ts) .........................–65°C to +150°C

ESD Rating

(4).................................................................. 2kV

Operating Ratings

(2)

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

Enable/Select Voltage (VEN/VSEL)........................... 0V to VIN

Junction Temperature (TJ) ........................–40°C to +125°C

Junction Thermal Resistance

1.6mmx1.6mm Thin MLF-6 (θJA) .......................92°C/W

Electrical Characteristics

(5)

VIN = VEN = VOUT + 1V; CIN = COUT = 1µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to +125°C, unless noted.

Parameter

Condition

Min

Typ

Max

Units

Variation from nominal VOUT

–1.5

+1.5

Output Voltage Accuracy

Variation from nominal VOUT

–2.0

+2.0

Line Regulation

VIN = VOUT +1V to 5.5V, IOUT = 100µA

0.01

0.3

%/V

Load Regulation

(6)

IOUT = 100µA to 150mA

0.05

Dropout Voltage

(7)

IOUT = 50mA

IOUT = 100mA

IOUT = 150mA

150

Ground Pin Current

(8)

IOUT = 100µA to 150mA

µA

Ground Pin Current in Shutdown

VEN = 0V

0.01

µA

Ripple Rejection

f = 1kHz; COUT = 1µF; IOUT = 150mA

f = 20kHz; COUT = 1µF; IOUT = 150mA

Current Limit

VOUT = 0V

275

475

750

Output Voltage Noise

COUT = 1µF, 10Hz to 100kHz

µVRMS

Enable/Select Input

Logic Low

0.2

Enable/Select Input Voltage

Logic High

1.2

VIL ≤ 0.2V

0.01

µA

Enable/Select Input Current

VIH ≥ 1.2V

0.01

µA

Turn-on Time

COUT = 1µF; IOUT = 150mA

150

500

µs

VEN = High; VSEL = Transition from 0V to 1.2V; VOUT

change from 1.8V to (3.2V-10%)

100

µs

Transition Time

VEN = High; VSEL = Transition from 1.2V to 0V; VOUT

change from 3.2V to (1.8V+10%)

100

µs

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

5. Specification for packaged product only.

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.

7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal VOUT. For outputs below

2.3V, the dropout voltage is the input-to-output differential with the minimum input voltage 2.3V.

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

current.

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