LT8686S

24

Rev. 0

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TYPICAL APPLICATIONS

4.7µF

4.7µF

4.7µF

0.1µF

0.1µF

1M

47µF

97.6k

2.2pF

0.1µF 4.7µH

649k

100µF

523k

4.7pF

0.1µF 2.8µH

113k

100µF

×2

909k

10pF

133k

0.1µF

12µH**

953k

100µF

154k

4.7pF

12µH**

1M

124k

22nF

22nF

22nF

22nF

499k

BST3

SW3

FB3

BST4

SW4

FB4

BIAS

BST1

SW1

FB1

BST2

SW2

FB2

EN/UVLO

EN2

VIN1

VIN2

EN3

EN4

VIN3

VIN4

PG4

PG3

PG2

PG1

RT

SYNC/MODE

OUT1

9V, 2A

INTVCC

OUT4

0.9V, 2A

OUT3

1.8V, 2A

GND

OUT2

5.75V, 2A*

LT8686S

TRK/SS4

TRK/SS3

TRK/SS2

TRK/SS1

OUT2

VIN

10V TO 42V

**INDUCTOR VALUES CHOSEN FOR VIN = 12V

8686S TA04a

*CURRENT AVAILABLE FROM OUT2: 2A – IVIN3 – IVIN4 – IBIAS

START-UP SEQUENCE:

VIN HIGH ENABLES OUT1 AND OUT2

VOUT2 IN REGULATION ENABLES OUT3,4

5ms/DIV

VIN

10V/DIV

VOUT1

5V/DIV

VOUT2

5V/DIV

VOUT3

1V/DIV

VOUT4

1V/DIV

8686S TA03b

Start-Up Sequencing

High Efficiency Quad Output Regulator Suitable for Driving Multiple LDO’s or Remote Circuitry