MIC2619 datasheet(3/15 Pages) MICREL

3 / 15 page

Micrel, Inc.

MIC2619

March 2010

M9999-030410-A

Absolute Maximum Ratings

(1)

Supply Voltage (VIN).........................................................7V

Switch Voltage (VSW)....................................... –0.3V to 40V

Enable Pin Voltage (VEN)..................................... –0.3 to VIN

Feedback Voltage (VFB), (VOVP)........................................6V

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

ESD Rating

(3) ................................................................. 2kV

Operating Ratings

(2)

Supply Voltage (VIN)......................................... 2.8V to 6.5V

Output Voltage (VOUT) .......................................... VIN to 35V

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

Package Thermal Impedance

Thin SOT-23-6 (

θJA).........................................177°C/W

Electrical Characteristics

(4)

TA = 25°C, VIN = VEN = 3.6V, VOUT = 10V, IOUT = 10mA, unless otherwise noted. Bold values indicate –40°C ≤ TJ ≤125°C.

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.8

6.5

Under Voltage Lockout

1.8

2.1

2.4

Quiescent Current

VFB > 1.265V, (not switching)

2.1

Shutdown Current

VEN = 0V

0.04

µA

Feedback Voltage

1.227

1.265

1.303

Feedback Input Current

VFB = 1.265V

-450

Line Regulation

2.8V ≤ VIN ≤ 6.5V

0.2

Load Regulation

5mA ≤ IOUT ≤ 20mA

0.3

Maximum Duty Cycle

Switch Current Limit

VIN = 3.6V

(5)

350

Switch Saturation Voltage

VIN = 3.6V, ISW = 300mA

400

Switch Leakage Current

VEN = 0V, VSW = 10V

0.01

µA

TURN ON

1.5

Enable Threshold

TURN OFF

0.4

Enable Pin Current

VEN = 6.5V

µA

Oscillator Frequency

1.2

MHz

Overvoltage Protection

1.202

1.265

1.328

OVP Input Current

VOVP = 1.265V

–200

150

°C

Overtemperature Threshold

Shutdown

Hysteresis

°C

Notes:

1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating

the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max),

the junction-to-ambient thermal resistance,

θJA, and the ambient temperature, TA. The maximum allowable power dissipation will result in excessive

die temperature, and the regulator will go into thermal shutdown.

2. This device is not guaranteed to operate beyond its specified operating ratings.

3. Devices are inherently ESD sensitive. Handling precautions required. Human body model: 1.5kΩ in series with 100pF.

4. Specification for packaged product only.

5. Guaranteed by design.

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