TC56 datasheet(2/16 Pages) MICROCHIP

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TC56

DS21436B-page 2

 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

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

Output Current ..................................................500mA

Output Voltage.......................VSS – 0.3V to VIN + 0.3V

SHDN Input Voltage ..............VSS – 0.3V to VIN + 0.3V

Power Dissipation (SOT-23).............................150mW

Operating Temperature Range............. -40°C to +85°C

Storage Temperature Range ..............-40°C to +125°C

*Stresses above those listed under "Absolute Maximum

Ratings" may cause permanent damage to the device. These

are stress ratings only and functional operation of the device

at these or any other conditions above those indicated in the

operation sections of the specifications is not implied.

Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

TC56 ELECTRICAL SPECIFICATIONS

Electrical Characteristics: VIN = VOUT +1V, TA = 25°C, CIN = 4.7µF, COUT = 10µF, unless otherwise noted.

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

VIN

Input Voltage

——

VOUT

Output Voltage

0.98 x VR VR ±0.5% 1.02 x VR

VIOUT = 40mA (Note 1)

IOUTMAX

Maximum Output Current

150

180

—

VR ≥ 2.7V, VOUT = 3V (Note 1)

VR ≥ 4.5V, VOUT = 5V (Note 1)

∆VOUT

Load Regulation

—

1mA

≤ IOUT ≤ 80mA, VOUT = 3V

1mA

≤ IOUT ≤ 80mA, VOUT = 5V

VIN - VOUT

Dropout Voltage

—

200

380

165

330

395

770

330

660

IOUT = 80mA, VOUT = 3V

IOUT = 160mA, VOUT = 3V

IOUT = 100mA, VOUT = 5V

IOUT = 200mA, VOUT = 5V (Note 2)

IDD

Supply Current

—

µAVSHDN = VIN = 4V

VSHDN = VIN = 6V

ISHDN

Shutdown Supply Current

——

0.1

µAVSHDN = GND

∆VOUT/∆VIN

Line Regulation

—

0.2

0.3

%/V

IOUT = 40mA, 4V ≤ VIN ≤ 10V

∆VOUT/∆TVOUT Temperature Coefficient

—

±100

—

ppm/°CIOUT = 10mA, -40°C < TJ < +85°C

VIH

SHDN Input High Logic Threshold

1.5

——

VIL

SHDN Input Low Logic Threshold

——

0.25

IIH

SHDN Input Current @VIH

——

5.0

µAVSHDN = VIN

IIL

SHDN Input Current @VIL

-0.2

-0.05

µAVSHDN = GND

Note 1:

VR is the regulator output voltage setting.

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

1V differential.

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