LT3466EDD-1 Ver la hoja de datos (PDF) - Linear Technology

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componentes Descripción

Fabricante

LT3466EDD-1

White LED Driver and Boost Converter in 3mm × 3mm DFN Package

Linear Technology 

TYPICAL APPLICATIO S

Li-Ion Powered Driver for 6 White LEDs and OLED with Output Disconnect

6 LEDs

3V TO 5V

CIN

1µF

COUT1

1µF

L1

33µH

L2

33µH

SW1 VIN SW2

VOUT1

VOUT2

LT3466-1

Q1

COUT3

0.47µF

COUT2

0.47µF

FB1

FB2

RFB1

CTRL1 RT CTRL2

10Ω

OFF ON

63.4k OFF ON

1%

16V

30mA

R1

475k

R2

24.9k

34661 TA04a

CIN: TAIYO YUDEN JMK107BJ105

COUT1: TAIYO YUDEN GMK316BJ105

COUT2, COUT3: TAIYO YUDEN TMK316BJ474

L1, L2: 33µH TOKO D52LC

Q1: SILICONIX TPO610

NOTE: ENSURE THAT VOUT2 > VIN(MAX) + 5V

LT3466-1

VOUT2

20V/DIV

IL2

200mA/DIV

CTRL2

5V/DIV

VIN = 3.6V

VOUT2 = 16V

2ms/DIV

34661 TA04c

Conversion Efficiency

90

VIN = 3.6V

85 VOUT2 = 16V

80

75

70

65

60

55

50

0

5 10 15 20 25 30

LOAD CURRENT (mA)

34661 TA04b

34661f

17

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