TC1304 datasheet(13/38 Pages) MICROCHIP

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DS21949C-page 13

TC1303A/TC1303B/TC1303C/TC1304

Note: Unless otherwise indicated, VIN1 = VIN2 = SHDN1,2 = 3.6V, COUT1 =CIN = 4.7 µF, COUT2 =1 µF, L =4.7 µH,

VOUT1 (ADJ) = 1.8V, TA = +25°C. Boldface specifications apply over the TA range of -40°C to +85°C. TA = +25°C. Adjustable- or fixed-

output voltage options can be used to generate the Typical Performance Characteristics.

FIGURE 2-13:

VOUT1 vs. IOUT1

(VOUT1 = 3.3V).

FIGURE 2-14:

VOUT1 Switching Frequency

vs. Input Voltage.

FIGURE 2-15:

VOUT1 Switching Frequency

vs. Ambient Temperature.

FIGURE 2-16:

VOUT1 Adjustable Feedback

Voltage vs. Ambient Temperature.

FIGURE 2-17:

VOUT1 Switch Resistance

vs. Input Voltage.

FIGURE 2-18:

VOUT1 Switch Resistance

vs. Ambient Temperature.

3.2

3.24

3.28

3.32

3.36

3.4

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 4.2V

1.90

1.95

2.00

2.05

2.10

2.15

2.20

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

Input Voltage (V)

SHDN1 = VIN2

SHDN2 = AGND

1.90

1.92

1.94

1.96

1.98

2.00

Ambient Temperature (°C)

SHDN1 = VIN2

SHDN2 = AGND

0.790

0.795

0.800

0.805

0.810

0.815

0.820

Ambient Temperature (°C)

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 3.6V

0.3

0.35

0.4

0.45

0.5

0.55

0.6

3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5

Input Voltage (V)

SHDN1 = VIN2

SHDN2 = AGND

TA = 25 °C

N-Channel

P-Channel

0.3

0.35

0.4

0.45

0.5

0.55

0.6

0.65

-40 -25 -10 5

20 35 50 65 80 95 110 125

Ambient Temperature (°C)

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 3.6V

N-Channel

P-Channel

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