TC1313-AA0EUNTR datasheet(7/28 Pages) MICROCHIP

Part #	TC1313-AA0EUNTR

Description	500 mA Synchronous Buck Regulator, 300 mA LDO

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Manufacturer	MICROCHIP [Microchip Technology]

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DS21974A-page 7

TC1313

2.0

TYPICAL PERFORMANCE CURVES

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 2-1:

IQ Switcher and LDO

Current vs. Ambient Temperature.

FIGURE 2-2:

IQ Switcher Current vs.

Ambient Temperature.

FIGURE 2-3:

IQ LDO Current vs. Ambient

Temperature.

FIGURE 2-4:

VOUT1 Output Efficiency vs.

Input Voltage (VOUT1 = 1.2V).

FIGURE 2-5:

VOUT1 Output Efficiency vs.

IOUT1 (VOUT1 = 1.2V).

FIGURE 2-6:

VOUT1 Output Efficiency vs.

Input Voltage (VOUT1 = 1.8V).

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

52

54

56

58

60

62

64

66

-40 -25 -10

5

20

35

50

65

80

95 110 125

Ambient Temperature (°C)

VIN = 5.5V

VIN = 4.2V

VIN = 3.6V

SHDN1 = VIN2

SHDN2 = VIN2

30

32

34

36

38

40

-40 -25 -10

5

20

35

50

65

80

95 110 125

Ambient Temperature (°C)

VIN = 5.5V

VIN = 4.2V

VIN = 3.6V

SHDN1 = VIN2

SHDN2 = AGND

36

38

40

42

44

46

48

50

-40 -25 -10

5

20

35

50

65

80

95 110 125

Ambient Temperature (°C)

VIN = 5.5V

VIN = 4.2V

VIN = 3.6V

SHDN1 = AGND

SHDN2 = VIN2

50

55

60

65

70

75

80

85

90

95

100

2.7

3.05

3.4

3.75

4.1

4.45

4.8

5.15

5.5

Input Voltage (V)

IOUT1 = 100 mA

IOUT1 = 250 mA

IOUT1 = 500 mA

SHDN1 = VIN2

SHDN2 = AGND

70

75

80

85

90

95

100

0.005

0.104

0.203

0.302

0.401

0.5

IOUT1 (A)

VIN1 = 3.0V

VIN1 = 4.2V

VIN1 = 3.6V

SHDN1 = VIN2

SHDN2 = AGND

60

65

70

75

80

85

90

95

100

2.7

3.05

3.4

3.75

4.1

4.45

4.8

5.15

5.5

Input Voltage (V)

IOUT1 = 100 mA

IOUT1 = 250 mA

IOUT1 = 500 mA

SHDN1 = VIN2

SHDN2 = AGND

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