MIC5319 datasheet(3/10 Pages) MICREL

3 / 10 page

October 2004

M9999-100604

MIC5319

Micrel

Electrical Characteristics(5)

VIN = VOUT +1.0V; COUT = 2.2µF, IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to + 125°C; unless noted.

Parameter

Condition

Min

Typ

Max

Units

Output Voltage Accuracy

Variation from nominal VOUT

–1.0

+1.0

Variation from nominal VOUT, IOUT = 100µA to 500mA

–2.0

+2.0

Feedback Voltage

1.2375

1.25

1.2625

(ADJ option)

1.225

1.25

1.275

Line Regulation

VIN = VOUT +1V to 5.5V

0.04

0.3

%/V

Load Regulation(6)

IOUT = 100µA to 500mA

0.1

0.5

Dropout Voltage(7)(8)

IOUT = 50mA

IOUT = 500mA

200

400

Ground Pin Current(9)

IOUT = 0 to 500mA

150

µA

Ground Pin Current in Shutdown

VEN 0.2V

0.5

µA

Ripple Rejection

f = up to 1kHz; COUT = 2.2µF ceramic; CBYP = 0.1µF70

f = 10kHz; COUT = 2.2µF ceramic; CBYP = 0.1µF60

Current Limit

VOUT = 0V

600

700

Output Voltage Noise

COUT =2.2µF, CBYP = 0.1µF, 10Hz to 100kHz

µVrms

Turn-On Time

COUT = 2.2µF; CBYP = 0.01µF40

100

µs

Enable Input

Enable Input Voltage

Logic Low (Regulator Shutdown)

0.2

Logic High (Regulator Enabled)

1.0

Enable Input Current

VIL

0.2V (Regulator Shutdown)

0.01

µA

VIH 1.0V (Regulator Enabled)

0.01

µA

Notes:

1. Exceeding maximum ratings may damage the device.

2. The device is not guaranteed to work 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 may go into thermal shutdown.

4. Devices are ESD sensitive. Handling precautions recommended. Human Body Model.

5. Specification for packaged product only.

6. Regulation is measured at constant junction temperature using low duty cycle pulse testing.

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 2.5V,

dropout voltage spec does not apply, as part is limited by minimum VIN spec of 2.5V. There may be some typical dropout degradation at VOUT <3V.

8. For ADJ option, VOUT = 3V for dropout specification.

9. 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.

Absolute Maximum Ratings(1)

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

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

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

(3)

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

Storage Temperature (TS) ......................... –65°C to 150°C

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

ESD(4) .............................................................................................. 3kV

Operating Ratings(2)

Supply Input Voltage (VIN) .............................. 2.5V to 5.5V

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

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

Package Thermal Resistance

MLF™ (θJA) ......................................................... 93°C/W

TSOT-23 (θJA) ................................................... 235°C/W

≤

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