MIC2606 datasheet(3/20 Pages) MICROCHIP

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2021 Microchip Technology Inc. and its subsidiaries.

DS20006620A-page 3

MIC2605/6

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Supply Voltage (VIN) ...................................................................................................................................................22V

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

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

FB Voltage (VFB).........................................................................................................................................................VDD

ESD Rating (Note 1) (MIC2605) ................................................................................................................................2 kV

ESD Rating (Note 1) (MIC2606) .............................................................................................................................1.5 kV

Operating Ratings ‡

Supply Voltage (VIN) ...................................................................................................................................... 4.5V to 20V

† 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 ratings.

Note 1: IC devices are inherently ESD sensitive. Handling precautions required. Human body model rating: 1.5 kΩ

in series with 100 pF.

ELECTRICAL CHARACTERISTICS (Note 1)

TA = 25°C, VIN = VEN = 12V, unless otherwise noted. Bold values indicate –40°C ≤ TJ ≤ +125°C.

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

Input Voltage Range

VIN

4.5

—

Internal Regulated Voltage

VDD

—

5.8

—

Note 2

Under-Voltage Lockout

VULVO

1.8

2.1

2.4

For VDD

Quiescent Current

—

4.2

VFB = 2V (not switching)

Shutdown Current

ISD

—

0.1

μA

VEN = 0V, Note 3

Feedback Voltage

VFB

1.225

1.25

1.275

(±2%)

1.212

—

1.288

(±3%) (overtemperature)

Feedback Input Current

IFB

—

–550

—

VFB = 1.25V

Line Regulation

ΔVLNR

—

0.04

8V ≤ VIN ≤ 14V, VOUT = 18V

Load Regulation

ΔVLDR

—

1.5

5 mA ≤ IOUT ≤ 40 mA, VOUT =

18V, Note 4

Maximum Duty Cycle

DMAX

—

MIC2605

—

MIC2606

Switch Current Limit

ISW

0.5

0.8

—

Note 4

Switch Saturation Voltage

VSW

—

600

—

ISW = 0.5A

Switch Leakage Current

ISW

—

0.01

μA

VEN = 0V, VSW = 18V

Enable Threshold

VEN

1.5

—

Turn ON

—

0.3

Turn OFF

Enable Pin Current

IEN

—

μA

VEN = 12V

Oscillator Frequency

(MIC2605)

fSW

1.02

1.2

1.38

MHz

—

Oscillator Frequency

(MIC2606)

fSW

1.7

2.3

MHz

—

Schottky Forward Drop

—

450

—

ID = 1 mA

—

850

—

ID = 150 mA

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