MIC37252 datasheet(3/8 Pages) MICREL

3 / 8 page

January 2003

MIC37252

Micrel

Electrical Characteristics

A = 25°C with VIN = VOUT + 1V; VEN = VIN; IL = 10mA; bold values indicate –40°C < TJ < +125°C; unless otherwise noted.

Parameter

Condition

Min

Typ

Max

Units

Output Voltage Accuracy

L = 10mA

–2+2

10mA < I

OUT < IL(max), VOUT + 1 ≤ VIN ≤ 6V

–3

Output Voltage Line Regulation

IN = VOUT +1.0V to 6.0V, IL = 10mA

0.02

0.5

Output Voltage Load Regulation

L = 10mA to 2.5A

0.2

IN – VOUT; Dropout Voltage ;

L = 1.5A

400

500

Note 5

L = 2.5A

550

1000

Ground Pin Current, Note 6

L = 2.5A

Ground Pin Current in Shutdown

IL < 0.5V, VIN = VOUT + 1V

1.0

µA

Current Limit

OUT = 0; VIN = 3.3V

Start-up Time

EN = VIN, IOUT = 10mA, COUT = 47µF150

250

µs

Enable Input

Enable Input Threshold

Regulator enable

2.25

Regulator shutdown

0.8

Enable Pin Input Current

IL < 0.8V (Regulator shutdown)

µA

IH > 2.25V (Regulator enabled)

µA

Reference Voltage

1.215

1.240

1.265

1.202

1.277

Adjust Pin Bias Current

120

Note 1.

Exceeding the absolute maximum ratings may damage the device.

Note 2.

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

Note 3.

Device is ESD sensitive. Handling precautions recommended.

Note 4.

D(MAX) = (TJ(MAX) – TA) / θJA, where θJA, depends upon the printed circuit layout. See “Applications Information.”

Note 5.

DO = VIN – VOUT when VOUT decreased to 98% of its nominal output voltage with VIN = VOUT +1V. For output voltages below 2V, dropout

voltage specification does not apply due to a minimum input operating voltage of 3V.

Note 6.

GND is the quiescent current. IIN = IGND + IOUT.

Absolute Maximum Rating (Note 1)

Supply Voltage (V

IN) .................................................... 6.5V

Enable Input Voltage (V

EN) .......................................... 6.5V

Power Dissipation .................................... Internally Limited

Junction Temperature ........................ –40

°C ≤ T

J ≤ +125°C

Storage Temperature ......................... –65

°C ≤ T

J ≤ +150°C

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

ESD, Note 3

Operating Maximum Rating (Note 2)

Supply Voltage (V

IN) ....................................... 3.0V to 6.0V

Enable Input Voltage (V

EN) ................................ 0V to 6.0V

Junction Temperature Range ............. –40

°C ≤ T

J ≤ +125°C

Maximum Power Dissipation …………….. ............... Note 4

Package Thermal Resistance

S-Pak (

JC) ........................................................ 2°C/W

TO-263-5 (

JC) .................................................. 2°C/W

MIC37252 Datenblatt(PDF) 3 Page - Micrel Semiconductor

MIC37252 Datenblatt(HTML) 3 Page - Micrel Semiconductor

Html Pages

1 2 3 4 5 6 7 8

Datenblatt Download

Link URL