TC1313-1G0EUN datasheet(9/32 Pages) MICROCHIP

Part #	TC1313-1G0EUN

Description	500 mA Synchronous Buck Regulator, 300 mA LDO

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Manufacturer	MICROCHIP [Microchip Technology]

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DS21974B-page 9

TC1313

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 2-7:

VOUT1 Output Efficiency vs.

IOUT1 (VOUT1 = 1.8V).

FIGURE 2-8:

VOUT1 Output Efficiency vs.

Input Voltage (VOUT1 = 3.3V).

FIGURE 2-9:

VOUT1 Output Efficiency vs.

IOUT1 (VOUT1 = 3.3V).

FIGURE 2-10:

VOUT1 vs. IOUT1

(VOUT1 = 1.2V).

FIGURE 2-11:

VOUT1 vs. IOUT1

(VOUT1 = 1.8V).

FIGURE 2-12:

VOUT1 vs. IOUT1

(VOUT1 = 3.3V).

75

80

85

90

95

100

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

SHDN1 = VIN2

SHDN2 = AGND

VIN = 3.0V

VIN = 4.2V

VIN = 3.6V

80

84

88

92

96

100

3.60

3.92

4.23

4.55

4.87

5.18

5.50

Input Voltage (V)

IOUT1 = 100 mA

IOUT1 = 250 mA

IOUT1 = 500 mA

SHDN1 = VIN2

SHDN2 = AGND

60

65

70

75

80

85

90

95

100

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

VIN1 = 5.5V

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 4.2V

VIN1 = 3.6V

1.19

1.194

1.198

1.202

1.206

1.21

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 3.6V

1.79

1.795

1.8

1.805

1.81

1.815

1.82

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

SHDN1 = VIN2

SHDN2 = AGND

VIN1 = 3.6V

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

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