 2019-2020 Microchip Technology Inc.

DS20006229C-page 3

MCP1792/3

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage ..........................................................................................................................................................+70.0V

Maximum Voltage on VIN, SHDN........................................................................................... (GND - 0.3V) to (VIN+0.3V)

Maximum Voltage on VOUT- ............................................................................................................(GND - 0.3V) to 5.5V

Output Short-Circuit Duration...............................................................................................................Unlimited (Note 2)

Storage Temperature ............................................................................................................................ –55°C to +175°C

Maximum Junction Temperature, TJ ..................................................................................................................... +175°C

Operating Junction Temperature, TJ ...................................................................................................... –40°C to +150°C

ESD protection on all pins:

HBM ....................................................................................................................................................................... ≥ 2 kV

CDM ...................................................................................................................................................................... ≥ 750V

MM .........................................................................................................................................................................≥ 200V

† 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 listings of this specification is not intended. Exposure to maximum rating conditions for

extended periods may affect device reliability.

AC/DC CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, VIN = VR + 1.2V (Note 1), IOUT = 1 mA, CIN = COUT = 2.2 µF

ceramic (X7R), TA = +25°C, SHDN > 2.4V. Boldface type applies for ambient temperatures TA of –40°C to +150°C

(Note 2).

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Input Operating Voltage

VIN

4.5

—

55

V

Output Voltage Range

VOUT

VR-2%

VR

VR+2%

TA of -40°C to +85°C

VR-3%

VR

VR+3%

TA of -40°C to +150°C

Input Quiescent Current

IQ

—25

45

µA

IOUT = 0A

Input Quiescent Current



for SHDN Mode

ISHDN

—2

12

µA

SHDN = GND, VIN = 55V

Ground Current

IGND

—100

150

µA

IOUT = 100 mA

—25

—

IOUT = 1 mA

Maximum Continuous



Output Current

IOUT

100

——

mA

(Note 2)

Foldback Current Corner

IOUT_SC

—

230

370

mA

VIN ≤ 55V Note 5)

Foldback Current

IFOLDBACK

—10

—

mA

VOUT~0V, RLOAD ≥ 0.1

VIN ≤ 55V,Note 5)

Note 1:

VR is the nominal output voltage. The minimum input voltage is VIN = VR + 1.2V or VIN = VIN_MIN,

whichever is greater.

2:

The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable

junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). See the

Temperature Specifications table and Section 5.0 “Application Information”. Exceeding the maximum

allowable power dissipation will cause the device operating junction temperature to exceed the maximum

150°C rating. Sustained junction temperatures above 150°C can impact the device reliability.

3:

Dropout voltage is defined as the input to output voltage differential at which the output voltage drops 2%

below its nominal value that was measured with an input voltage of VIN = VR + 1.2V.

4:

PSRR measurement is carried out with CIN = 0 µF, VIN = 7V, IOUT = 10 mA, VINAC = 0.4 Vpkpk.

5:

Not production tested.