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DS20006229C-page 4

MCP1792/3

Line Regulation

VOUT/

(VOUTxVIN)

±0.0002

±0.05

%/V

4.5V < VIN < 55V,

6.2V < VIN < 55V

Load Regulation

VOUT/VOUT

-1

0.2

+1

%

IOUT = 1 mA to 100 mA, 

TA of -40°C to +85°C

-2

0.2

+2

IOUT = 1 mA to 100 mA, 

TA of -40°C to +150°C

Dropout Voltage

VDROPOUT

—250

400

mV

TA of -40°C to +85°C, 

IOUT = 100 mA

—250

1200

TA of -40°C to +150°C,

IOUT = 100 mA (Note 3)

Input Voltage to Turn On

Output

VUVLO_High

2.7

V

VR = 3.3V, VR = 5.0V, rising

VIN, VIN = 0 to VIN_MIN

Input Voltage to Turn Off

Output

VUVLO_Low

2.4

V

VR = 3.3V, VR = 5.0V, failing

VIN, VIN = VIN_MIN to 0

Shutdown Input

Logic High Input

VSHDN-HIGH

2.4

—

VIN

V

Logic Low Input

VSHDN-LOW

0

—

0.8

V

Shutdown Input Leakage

Current

SHDNILK

—0.2

0.4

µA

SHDN = GND, or

SHDN = 6.2V

AC Performance

Output Voltage Delay

Time

TDELAY

—800

1200

µs

VIN = 0 to 6.2V

VOUT = GND to 10% of VR,

RLOAD = 50Note 5)

Output Rise Time

TRISE

400

µs

VIN = 0 to 6.2V

VOUT = 10% to 90% of VR,

RLOAD = 50 Note 5)

Output Noise

eN

—400

—

µVrms

f = 10 Hz to 100 kHz,

VR = 3.3V, IOUT = 10 mA

(Note 5)

Power Supply Ripple



Rejection Ratio

PSRR

—80

—

dB

f = 100 Hz (Note 4, Note 5)

55

f = 100 kHz (Note 4, Note 5)

AC/DC CHARACTERISTICS (CONTINUED)

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

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.