MCP1799 datasheet(3/25 Pages) MICROCHIP

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DS20006248A-page 3

MCP1799

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage ..........................................................................................................................................................+66.0V

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

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

Internal Power Dissipation .......................................................................... ............................Internally-Limited (Note 3)

Output Short Circuit Current..........................................................................................................................Continuous

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

Maximum Junction Temperature, TJ ..................................................................................................................... +185°C

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

ESD protection on all pins:

HBM ....................................................................................................................................................................... ≥ 4kV

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

MM .........................................................................................................................................................................≥ 400V

† 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 = 6.2V(for VR =5V), VIN = 4.5V(for VR =3.3V), IOUT =1 mA,

CIN =COUT = 1.0 µF ceramic (X7R), TA = +25°C. Boldface type applies for ambient temperatures TA of -40°C to

+150°C.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Input Operating Voltage

VIN

4.5

—

VR = 3.3V, IOUT ≤ 80 mA

6.2

—

VR =5V, IOUT ≤ 80 mA

Input Voltage to Turn On

Output

VUVLO_High

—2.8

—

rising VIN, VIN = 0 to VIN(MIN)

Input Voltage to Turn Off

Output

VUVLO_Low

—

2.6

—

falling VIN, VIN = VIN(MIN) to 0

Output Voltage Range

VOUT

VR-2%

VR+2%

(Note 1)

Input Quiescent Current

—25

µA

IOUT =0A

Ground Current

IGND

—45

110

µA

IOUT =80 mA

Maximum

Output Current

IOUT

——

(Note 3)

Line Regulation

VOUT/

(VOUTxVIN)

-0.05

±0.02

+0.05

%/V

4.5V ≤ VIN ≤ 45V for VR = 3.3V

6.2V ≤ VIN ≤ 45V for VR = 5V

Note 1:

VR is the nominal regulator output voltage.

Load regulation is measured at a constant ambient temperature using a DC current source. Load

regulation is tested over a load range 1 mA to the maximum specified output current.

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 Section

“Temperature Specifications” for more 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 might impact the device reliability.

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.

PSRR measurement is carried out with CIN =0 µF, VIN =7V, IOUT =50mA, VINAC =0.4Vpkpk

Not production tested.

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