MCP1633

DS20006289B-page 4

 2020 Microchip Technology Inc.

1.0

ELECTRICAL CHARACTERISTICS

1.1

Absolute Maximum Ratings†

VCC................................................................................................................................................................................6V

Maximum Voltage on Any Pin ............................................................................................ (VGND – 0.3V) to (VIN + 0.3V)

VEXT Short Circuit Current......................................................................................................................Internally Limited

Storage Temperature..............................................................................................................................–65°C to +150°C

Maximum Junction Temperature ...........................................................................................................................+150°C

Operating Junction Temperature ............................................................................................................–40°C to +125°C

ESD Protection on All Pins (HMB)(1) ..........................................................................................................................2 kV

Note 1: Devices are ESD-sensitive. Handling precautions are recommended. Human body model, 1.5 kΩ in series

with 100 pF.

† 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.

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, during characterization, VIN = 3.3V to 5.5V, FSW = 600 kHz with

CIN = 1.0 µF, TA = +25°C, TA = –40°C to +125°C.

Parameters

Symbol

Min.

Typ.

Max.

Units

Conditions

Inputs

Input Operating Voltage

VIN

3—

5.5

V

Input Quiescent Current

I(VIN)—

55.75

mA

IEXT = 0 mA, VCC =5V,

FSW = 1200 kHz

Shutdown Current

IIN_SHDN

——

1

µA

EN = 0V

EN Input

EN Input Voltage Low

ENLOW

——

0.8

V

EN Input Voltage High

ENHIGH

75

—

—

% of

VIN

Oscillator

Internal Oscillator Range

FOSC

200

—

2200

kHz

Refer to Section 4.6 “Internal

Oscillator” for details

FSW Output Voltage

VRFSW

0—

3

V

External Synchronization

Signal Frequency Rage

FSYNC

200

—

2500

kHz

SYNC Signal Low Voltage

VSYNCL

——

0.8

V

SYNC Signal High Voltage

VSYNCH

2—

—

V

SYNC Signal Time Low

TSYNC_MAX

—10

—

ns

Note 1

SYNC Signal Time High

TSYNC_MIN

—10

—

ns

Note 1

SYNC Signal Rise/Fall Time

TSYNC RISE/

FALL

0.001

—

10

us

Note 1

Error Amplifier

Input Voltage Offset

VOS

–7.5

—

7.5

mV

Error Amplifier PSRR

PSRR

80

—

—

dB

VIN = +5V

Common Mode Input

Range

VCM

0—

2

V

Note 1: Determined by characterization, not production tested.