MIC2202YML datasheet(3/19 Pages) MICREL

3 / 19 page

Micrel, Inc.

MIC2202

March 2007

M9999-031907

Absolute Maximum Ratings

(1)

Supply Voltage (VIN).........................................................6V

Output Switch Voltage (VSW) ............................................6V

Logic Input Voltage (VEN, VSYNC_IN).................... VIN to –0.3V

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

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

ESD Rating

(4).................................................................. 2kV

Operating Ratings

(2)

Supply Voltage (VIN)..................................... +2.3V to +5.5V

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

Package Thermal Resistance

MSOP-10L (

θJA)...............................................115°C/W

3x3 MLF-10 (

θJA) ...............................................60°C/W

Electrical Characteristics

(5)

TA = 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

EN = VIN; VFB = 0.55V (not switching)

350

450

µA

Quiescent Current

EN = 0V

0.01

µA

MIC2202 [Adjustable] Feedback

Voltage

0.4875

0.5

0.5125

Output Voltage Line Regulation

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

0.05

0.5

Output Voltage Load Regulation

0mA < ILOAD < 500mA

0.1

0.5

Bias Regulator Output Voltage

2.2

2.32

2.6

Maximum Duty Cycle

VFB = 0.7V

100

Current Limit

VFB = 0.7V

1.8

2.5

Switch ON-Resistance

VIN = 3.5V, ISW = 300mA; VFB = 0.35V

0.65

0.9

Ω

VIN = 3.5V, ISW = 300mA; VFB = 0.55V

0.55

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

Hysteresis

°C

Notes:

1. Exceeding the absolute maximum rating may damage the device.

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

3. Absolute maximum power dissipation is limited by maximum junction temperature where PD(MAX) = (TJ(MAX) – TA) ÷ θJA.

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

5. Specification for packaged product only.

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