MIC37151 datasheet(4/13 Pages) MICREL

4 / 13 page

Micrel, Inc.

MIC37150/51/52/53

October 2007

M9999-101907

Absolute Maximum Ratings

(1)

Supply Voltage (VIN)......................................................6.5V

Enable Input Voltage (VEN)............................................6.5V

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

Junction Temperature .........................–40°C ≤ TJ ≤ +125°C

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

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

EDS Rating................................................................ Note 3

Operating Ratings

(2)

Supply voltage (VIN) ....................................... 2.25V to 6.0V

Enable Input Voltage (VEN).................................. 0V to 6.0V

Junction Temperature Range .............–40°C ≤ TJ ≤ +125°C

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

Package Thermal Resistance

S-Pak (θJC) ..........................................................2°C/W

Power SOIC-8 (θJA) ...........................................63°C/W

e-Pad SOIC-8 (θJC)............................................10°C/W

Electrical Characteristics

(5)

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

Parameter

Condition

Min

Typ

Max

Units

IL = 10mA

–1

Output Voltage Accuracy

10mA < IOUT < IL(max), VOUT + 1 ≤ VIN ≤ 6V

–2

Output Voltage Line Regulation

VIN = VOUT +1.0V to 6.0V

0.06

0.5

Output Voltage Load Regulation

IL = 10mA to 1.5A

0.2

IL = 750mA

350

VIN – VOUT; Dropout Voltage,

Note 6

IL = 1.5A

500

Ground Pin Current, Note 7

IL = 1.5A

Ground Pin Current in Shutdown

VIL ≤ 0.5V, VIN = VOUT + 1V

1.0

µA

Current Limit

VOUT = 0

2.25

4.0

Start-up Time

VEN = VIN, IOUT = 10mA, COUT = 22µF

170

500

µs

Enable Input

Regulator enable

2.25

Enable Input Threshold

Regulator shutdown

0.8

VIL ≤ 0.8V (regulator shutdown)

µA

Enable Pin Input Current

VIH ≥ 2.25V (regulator enabled)

µA

Flag Output

IFLG(LEAK)

VOH = 6V

µA

VFLG(LO)

VIN = 2.25V, IOL = 250µA, Note 8

210

300

400

Low threshold, % of VOUT below nominal

Hysteresis

VFLG

High threshold, % of VOUT below nominal

99.2

1.228

1.240

1.252

Reference Voltage

Note 9

1.215

1.265

Reference Voltage Temp.

Coefficient

Note 10

ppm/°C

Adjust Pin Bias Current

120

Adjust Pin Bias Current Temp.

Coefficient

0.1

nA/°C

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