TC1221 datasheet(10/16 Pages) MICROCHIP

Numer części	TC1221

Szczegółowy opis	High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages

PDF	16 Pages

Scroll/Zoom	100%

Producent	MICROCHIP [Microchip Technology]

Strona internetowa	http://www.microchip.com

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10 / 16 page

TC1221/TC1222

DS21367B-page 10

 2002 Microchip Technology Inc.

5.0

TYPICAL CHARACTERISTICS (CONTINUED)

TC1222 Supply Current vs. Supply Voltage

250

500

750

1000

1250

1500

1750

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

SUPPLY VOLTAGE (V)

C1 = C2 = C3 = 0.22

µF,

RL =

∞, +25°C

TC1222 Output Resistance vs. Supply Voltage

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

SUPPLY VOLTAGE (V)

C1 = C2 = C3 = 0.22

µF, +25°C

120

012

160

TC1222 Output Voltage Ripple

vs. Capacitance , C2

VIN = 5.0V

VIN = 3.3V

VIN = 3.3V, RL = 1K, +25°C

VIN = 5.0V, RL = 1K, +25°C

CAPACITANCE (

µF)

IN = 5.0V

TC1222 Output Voltage Droop

vs. Capacitance, C1 = C2

IN = 3.3V

100

150

200

250

300

350

400

450

500

CAPACITANCE (

µF)

VIN = 3.3V, RL = 1K, +25°C

VIN = 5.0V, RL = 1K, +25°C

500

550

600

650

700

750

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

TC1222 Oscillator Frequency

vs. Supply Voltage

SUPPLY VOLTAGE (V)

C1 = C2 = C3 = 0.22

µF,

RL =

∞, +25°C

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