MIC4680 datasheet(3/24 Pages) MICROCHIP

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2021 Microchip Technology Inc. and its subsidiaries

DS20006623A-page 3

MIC4680

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Supply Voltage (VIN; Note 1).....................................................................................................................................+38V

Shutdown Voltage (VSHDN) ........................................................................................................................ –0.3V to +38V

Steady-State Output Switch Voltage (VSW).................................................................................................................–1V

Feedback Voltage (Adjustable Version; VFB) ............................................................................................................+12V

ESD Rating ............................................................................................................................................................ Note 2

Operating Ratings ‡

Supply Voltage (VIN; Note 3).........................................................................................................................+4V to +34V

† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the device at those or any other conditions above those indicated

in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended

periods may affect device reliability.

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

Note 1: Absolute maximum rating is intended for voltage transients only, prolonged DC operation is not recom-

mended.

2: Devices are ESD sensitive. Handling precautions are recommended.

3: VIN(MIN) = VOUT + 2.5V or 4V, whichever is greater.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: VIN = 12V; ILOAD = 500 mA; TJ = +25°C, bold values valid for –40°C to +125°C, unless

noted. (Note 1)

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

MIC4680 Adjustable Voltage Version

Feedback Voltage

VFB

1.217

1.230

1.243

±1%

1.205

—

1.255

±1%

1.193

1.230

1.267

8V ≤ VIN ≤ 34V, 0.1A ≤ ILOAD ≤ 1A,

VOUT = 5V

1.180

—

1.280

Maximum Duty Cycle

DCMAX

—

VFB = 1.0V

Output Leakage Current

IOZ

—

500

µA

VIN = 34V, VSHDN = 5V, VSW = 0V

—

VIN = 34V, VSHDN = 5V, VSW = –1V

Quiescent Current

—

VFB = 1.5V

MIC4680-3.3

Output Voltage

VOUT

3.266

3.3

3.333

±1%

3.201

—

3.399

±3%

3.168

3.3

3.432

6V ≤ VIN ≤ 34V, 0.1A ≤ ILOAD ≤ 1A

3.135

—

3.465

Maximum Duty Cycle

DCMAX

—

VFB = 2.5V

Output Leakage Current

IOZ

—

500

µA

VIN = 34V, VSHDN = 5V, VSW = 0V

—

VIN = 34V, VSHDN = 5V, VSW = –1V

Note 1: Test at TA = +85°C, ensured by design, and characterized to TJ = +125°C.

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