MCP1801 datasheet(3/26 Pages) MICROCHIP

3 / 26 page

DS22051C-page 3

MCP1801

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage ................................................................. +12V

Output Current (Continuous) ..................... PD/(VIN-VOUT)mA

Output Current (Peak) ............................................... 500 mA

Output Voltage ............................... (VSS-0.3V) to (VIN+0.3V)

SHDN Voltage ..................................(VSS-0.3V) to (VIN+0.3V)

Continuous Power Dissipation:

SOT-23-5 .............................................................. 250 mW

† Notice: Stresses above those listed under “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 implied. Exposure to maximum rating conditions

for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, all limits are established for V

IN = VR + 1.0V, Note 1, COUT = 1 µF (X7R),

CIN = 1 µF (X7R), VSHDN = VIN, TA = +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input / Output Characteristics

Input Operating Voltage

VIN

2.0

—

10.0

Note 1

Input Quiescent Current

—25

µA

IL = 0 mA

Shutdown Current

ISHDN

—

0.01

0.10

µA

SHDN = 0V

Maximum Output Current

IOUT_mA

150

—

Current Limiter

ILIMIT

—

300

—

if VR ≤ 1.75V, then VIN = VR + 2.0V

Output Short Circuit Current

IOUT_SC

—50

—

if VR ≤ 1.75V, then VIN = VR + 2.0V

Output Voltage Regulation

VOUT

VR-2.0%

VR+2.0%

VR ≥ 1.45V, IOUT = 30 mA, Note 2

VR-30 mV

VR+30 mV

VR < 1.45V, IOUT = 30 mA

VOUT Temperature Coeffi-

cient

TCVOUT

—

100

—

ppm/°C

IOUT = 30 mA, -40°C ≤ TA ≤ +85°C,

Note 3

Line Regulation

ΔV

OUT/

(VOUTXΔVIN)

-0.2

±0.01

+0.2

%/V

(VR + 1V) ≤ VIN ≤ 10V, Note 1

VR > 1.75V, IOUT = 30 mA

VR ≤ 1.75V, IOUT = 10 mA

Load Regulation

ΔV

OUT/VOUT

—15

IL = 1.0 mA to 100 mA, Note 4

Dropout Voltage

Note 1, Note 5

VDROPOUT

—60

IL = 30 mA, 3.1V ≤ VR ≤ 6.0V

—

200

250

IL = 100 mA, 3.1V ≤ VR ≤ 6.0V

—

120

IL = 30 mA, 2.0V ≤ VR < 3.1V

—

240

350

IL = 100 mA, 2.0V ≤ VR < 3.1V

—

2.07 - VR

2.10 - VR

VIL = 30 mA, VR < 2.0V

—

2.23 - VR

2.33 - VR

IL = 100 mA, VR < 2.0V

Power Supply Ripple

Rejection Ratio

PSRR

—

f = 10 kHz, IL = 50 mA,

VINAC = 1V pk-pk, CIN = 0 µF,

if VR < 1.5V, then VIN = 2.5V

Output Noise

—0.6

—

µV/

√Hz

IOUT=100 mA, f=1 kHz,

COUT=1 µF (X7R Ceramic),

VOUT=3.3V

Note 1:

The minimum VIN must meet two conditions: VIN ≥ 2.0V and VIN ≥ (VR + 1.0V).

VR is the nominal regulator output voltage. For example: VR = 1.8V, 2.5V, 3.0V, 3.3V, or 5.0V.

The input voltage VIN = VR + 1.0V or ViIN = 2.0V (whichever is greater); IOUT = 100 µA.

TCVOUT = (VOUT-HIGH - VOUT-LOW) *10

6 / (V

R * ΔTemperature), VOUT-HIGH = highest voltage measured over the

temperature range. VOUT-LOW = lowest voltage measured over the temperature range.

Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output

voltage due to heating effects are determined using thermal regulation specification TCVOUT.

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

value with an applied input voltage of VR + 1.0V or 2.0V, whichever is greater.

MCP1801 Datasheet(PDF) 3 Page - Microchip Technology

MCP1801 Datasheet(HTML) 3 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Datasheet Download

Link URL