MIC3775-2.5YMM datasheet(3/13 Pages) MICREL

3 / 13 page

Micrel, Inc.

MIC3775

December 2006

M9999-121906

Absolute Maximum Ratings(1)

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

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

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

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

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

Operating Ratings(2)

Supply Voltage (VIN)...................................... +2.25V to +6V

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

Maximum Power Dissipation (PD(MAX)) ...................... Note 4

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

Package Thermal Resistance

MSOP-8 (

θJA).....................................................80°C/W

Electrical Characteristics(5)

VIN = VOUT + 1V; VEN = 2.25V; TJ = 25°C, bold values indicate –40°C< TJ < +125°C, unless noted.

Symbol

Parameter

Condition

Min

Typ

Max

Units

VOUT

Output Voltage

10mA

10mA ≤ IOUT ≤ 750mA, VOUT + 1V ≤ VIN ≤ 6V

–1

–2

Line Regulation

IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 6V

0.06

0.5

Load Regulation

VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 750mA

0.2

∆VOUT/∆T

Output Voltage Temp.

Coefficient, Note 6

ppm/°C

IOUT = 100mA, ∆VOUT = –1%

125

200

250

IOUT = 500mA, ∆VOUT = –1%

210

VDO

Dropout Voltage, Note 7

IOUT = 750mA, ∆VOUT = –1%

280

500

IOUT = 100mA, VIN = VOUT + 1V

700

µA

IOUT = 500mA, VIN = VOUT + 1V

3.7

IGND

Ground Current, Note 8

IOUT = 750mA, VIN = VOUT + 1V

7.5

IOUT(lim)

Current Limit

VOUT = 0V, VIN = VOUT + 1V

1.6

2.5

Enable Input

logic low (off)

0.8

VEN

Enable Input Voltage

logic high (on)

2.25

VEN = 2.25V

µA

IEN

Enable Input Current

VEN = 0.8V

µA

Flag Output

IFLG(leak)

Output Leakage Current

VOH = 6V

0.01

µA

VFLG(do)

Output Low Voltage

VIN = 2.250V, IOL, = 250µA

250

500

Low Threshold

% of VOUT

High Threshold

% of VOUT

99.2

VFLG

Hysteresis

Adjustable Output Only

Reference Voltage

1.227

1.215

1.240

1.252

1.265

Adjust Pin Bias Current

120

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