MIC39500 datasheet(3/8 Pages) MICREL

3 / 8 page

June 1999

MIC39500/39501

Micrel

Absolute Maximum Ratings (Note 1)

Supply Voltage (V

IN) ..................................... –20V to +20V

Enable Voltage (V

EN) .................................................. +20V

Storage Temperature (T

S) ....................... –65°C to +150°C

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

°C

ESD, Note 3

Operating Ratings (Note 2)

Supply Voltage (V

IN) .................................. +2.25V to +16V

Enable Voltage (V

EN) .................................................. +16V

Maximum Power Dissipation (P

D(max)) ..................... Note 4

Junction Temperature (T

J) ....................... –40°C to +125°C

Package Thermal Resistance

TO-263

(θ

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

TO-220 (

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

Electrical Characteristics

J = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C; unless noted

Symbol

Parameter

Condition

Min

Typ

Max

Units

OUT

Output Voltage

10mA

≤ I

OUT ≤ 5A, VOUT + 1V ≤ VIN ≤ 16V

–11

–2

Line Regulation

OUT = 10mA, VOUT + 1V ≤ VIN ≤ 16V

0.06

0.5

Load Regulation

IN = VOUT + 1V, 10mA ≤ IOUT ≤ 5A

0.2

∆V

OUT/∆T

Output Voltage Temp. Coefficient,

100

ppm/

°C

Note 5

Dropout Voltage, Note 6

OUT = 250mA, ∆VOUT = –2%

125

250

OUT = 2.5A, ∆VOUT = –2%

320

OUT = 5A, ∆VOUT = –2%

400

500

GND

Ground Current, Note 7

OUT = 2.5A, VIN = VOUT + 1V

OUT = 5A, VIN = VOUT + 1V

GND(do)

Dropout Ground Pin Current

IN ≤ VOUT(nominal) – 0.5V, IOUT = 10mA

2.1

OUT(lim)

Current Limit

OUT = 0V, VIN = VOUT + 1V

7.5

Output Noise Voltage

OUT = 47µF, IOUT = 100mA, 10Hz to 100kHz

260

µV(rms)

Enable Input (MIC39501)

Enable Input Voltage

logic low (off)

0.8

logic high (on)

2.4

Enable Input Current

EN = VIN

µA

EN = 0.8V

µA

OUT(shdn)

Shutdown Output Current

Note 8

µA

Flag Output (MIC39501)

FLG(leak)

Output Leakage Current

OH = 16V

0.01

µA

FLG(do)

Output Low Voltage

IN = 2.250V, IOL, = 250µA, Note 9

125

150

200

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.

Devices are 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.

Output voltage temperature coefficient is

∆V

OUT(worst case) ÷ (TJ(max) – TJ(min)) where TJ(max) is +125°C and TJ(min) is 0°C.

Note 6.

DO = VIN – VOUT when VOUT decreases to 98% of its nominal output voltage with VIN = VOUT + 1V.

Note 7.

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

Note 8.

EN ≤ 0.8V, VIN ≤ 8V, and VOUT = 0V

Note 9.

For a 2.5V device, V

IN = 2.250V (device is in dropout).

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