LM5166YDRCR datasheet(7/53 Pages) TI1

Part #	LM5166YDRCR

Description	3-V to 65-V Input, 500-mA Synchronous Buck Converter with Ultra-Low

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Temperature (qC)

-50

-25

0

25

50

75

100

125

150

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3

D001

Rising

Falling

Temperature (qC)

-50

-25

0

25

50

75

100

125

150

1.1

1.12

1.14

1.16

1.18

1.2

1.22

1.24

D002

Rising

Falling

Load (mA)

0.01

0.1

1

10

100

300

30

40

50

60

70

80

90

100

D001

VIN = 8V

VIN = 12V

VIN = 24V

VIN = 36V

Load (mA)

0.01

0.1

1

10

100

500

30

40

50

60

70

80

90

100

D001

VIN = 8V

VIN = 12V

VIN = 24V

VIN = 36V

Load (mA)

0.01

0.1

1

10

100

500

30

40

50

60

70

80

90

100

D001

VIN = 8V

VIN = 12V

VIN = 24V

VIN = 36V

VIN = 65V

Load (mA)

0.01

0.1

1

10

100

500

30

40

50

60

70

80

90

100

D001

VIN = 8V

VIN = 12V

VIN = 24V

VIN = 36V

VIN = 65V

7

LM5166

www.ti.com

SNVSA67A – DECEMBER 2016 – REVISED DECEMBER 2016

Product Folder Links: LM5166

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6.7 Typical Characteristics

Unless otherwise specified, VIN = 12 V, VOUT = 5 V. Please refer to Typical Applications for circuit designs.

See schematic,

Figure 50

LF = 150 µH

COUT = 47 µF

FSW(nom) = 100 kHz

RRT = 309 kΩ

Figure 1. Converter Efficiency: 5 V, 500 mA, COT

See schematic,

Figure 61

LF = 47 µH

COUT = 47 µF

FSW(nom) = 200 kHz

RRT = 100 kΩ

Figure 2. Converter Efficiency: 3.3 V, 500 mA, COT

See schematic,

Figure 68

LF = 4.7 µH

COUT = 47 µF

FSW(nom) = 600 kHz

RRT = 0 Ω

Figure 3. Converter Efficiency: 3.3 V, 300 mA, PFM

See schematic,

Figure 75

LF = 22 µH

COUT = 200 µF

FSW(nom) = 100 kHz

RRT = 0 Ω

Figure 4. Converter Efficiency: 5 V, 500 mA, PFM

Figure 5. Internal VIN UVLO Voltage vs Temperature

Figure 6. Enable Threshold Voltage vs Temperature

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