MIC2202YMM datasheet(3/18 Pages) MICREL

3 / 18 page

May 2004

M9999-052104

MIC2202

Micrel

Absolute Maximum Ratings(Note 1)

Supply Voltage (V

IN) ....................................................... 6V

Output Switch Voltage (V

SW) .......................................... 6V

Logic Input Voltage (V

EN, VSYNC_IN) ............... VIN to –0.3V

Power Dissipation .................................................... Note 3

Storage Temperature (T

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

ESD Rating (Note 4) ..................................................... 2kV

Operating Ratings(Note 2)

Supply Voltage (V

IN) ................................... +2.3V to +5.5V

Junction Temperature (T

J) ................ –40°C ≤ TJ ≤ +125°C

Package Thermal Resistance

MSOP-10L (

JA) ................................................ 115°C/W

3mm

×3mm MLF™-10L (θ

JA) ............................... 60°C/W

Electrical Characteristics(Note 5)

A = 25°C with VIN = 3.5V unless otherwise noted, bold values indicate –40°C < TJ < +125°C

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.3

5.5

Quiescent Current

EN = V

IN; VFB = 0.55V (not switching)

350

450

µA

EN = 0V

0.01

µA

MIC2202 [Adjustable] Feedback

0.4875

0.500

0.5125

Voltage

Output Voltage Line Regulation

OUT < 2V; VIN = 2.3V to 5.5V, ILOAD= 100mA

0.05

0.5

Output Voltage Load Regulation

0mA < I

LOAD < 500mA

0.1

0.5

Bias Regulator Output Voltage

2.2

2.32

2.6

Maximum Duty Cycle

FB = 0.7V

100

Current Limit

FB = 0.7V

1.8

2.5

Switch ON-Resistance

IN = 3.5V, ISW = 300mA

FB = 0.35V

0.650

0.9

Ω

IN = 3.5V, ISW = –300mA

FB = 0.55V

0.550

0.75

Ω

Enable Input Current

0.01

µA

Sync Frequency Range

1.6

2.5

MHz

SYNC_IN Threshold

0.7

1.7

Sync Minimum Pulse Width

SYNC_IN Input Current

µA

Oscillator Frequency

1.8

2.2

MHz

Enable Threshold

0.5

0.9

1.3

Enable Hysteresis

Over-temperature Shutdown

160

°C

Over-temperature Shutdown

°C

Hysteresis

Note 1.

Exceeding the ABSOLUTE MAXIMUM RATINGS may damage device.

Note 2.

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

Note 3.

Absolute maximum power dissipation is limited by maximum junction temperature where P

D(MAX) = (TJ(MAX)–TA) ÷ θJA.

Note 4.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.

Note 5.

Specification for packaged product only.

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