MIC2133 datasheet(5/50 Pages) MICROCHIP

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DS20006653B-page 5

MIC2133

ELECTRICAL CHARACTERISTICS(1)

Electrical Characteristics: VIN =12V; VOUT =5V; fSW = 500 kHz/phase; VBST – VSW =5V; TA = +25°C; unless noted.

Boldface values indicate -40°C ≤ TJ ≤ +125°C.

Parameters

Symbol

Min.

Typ.

Max.

Units

Conditions

Power Supply Input

Input Voltage Range

VIN

—

V—

Quiescent Supply Current

—5000

8000

µA

VFBS = +1.5V

Shutdown Current

ISD

—25

µA

VEN = 0V

VDD and EXTVDD

VDD Voltage Range

VDD

4.7

5.1

5.4

VVIN = 8V to 75V, IVDD = 20 mA

(Note 5)

VDD Undervoltage Lockout Upper

Threshold

VDDUV_R

3.7

4.2

4.5

VDD rising

VDD UVLO Hysteresis

VDDUV_HYS

—

600

—

Hysteresis

VDD Regulation

ΔVDD

—1

2.5

%VIN = 24V,

IVDD from 1 mA to 40 mA (Note 5)

VDD Regulator Dropout Voltage

VDROP_VDD

—

0.8

1.05

VIN = 5.5V, IVDD = 25 mA

EXTVDD Switchover Voltage

VSO_EVDD

4.5

4.7

4.9

VVIN = 24V, EXTVDD rising,

IVDD = 40 mA

EXTVDD Switchover Voltage

Hysteresis

VSO_HYS

—

250

—

Hysteresis

EXTVDD Dropout Voltage

VDROP_EVDD

—

250

—

VEXTVDD = 5V, IVDD = 40 mA

EXTVDD Leakage Current

ILK_EVDD

—0.1

—

µA

VEXTVDD = 14V, VEN = 0V

Soft Start

Soft Start Source Current

ISS

0.8

1.2

1.7

µA

—

DC-DC Regulator

Output Voltage Adjustable Range

VOUT

0.6

—

Note 2

Reference and Remote Sensing Amplifier

Feedback Regulation Voltage

VFBS-GFB

0.593

0.6

0.606

Measured with EA in servo loop

FBS Bias Current

IFBS

—2

—

VFBS = +0.6V (Note 2)

GFB Bias Current

IGFB

—12

—

µA

—

Remote Sense Amplifier Gain

GRSA

—1.00

—

V/V

—

Enable

Enable Upper Threshold Voltage

VEN_TH

1.05

1.2

1.36

Enable Rising

Enable Hysteresis

VEN_HYS

—65

—

Enable Bias Current

IEN

—

100

200

VEN = 12V

Note 1: Specification for packaged product only.

2: Ensured by design and characterization. Not production tested.

3: Measured in Test mode.

4: The maximum duty cycle is limited by the fixed mandatory off-time of typically 360 ns.

5: Limited by maximum junction temperature TJ = +125°C.

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