L5994 - L5994A

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side and power traces on the other side.

7) Use heavy copper traces: this will reduce their resistance, increasing overall efficiency and will improve

their heat-sinking ability.

L5994 Evaluation Kit

The L5994 Evaluation kit is a fully assembled and tested demonstration board that implements a standard ap-

plication circuit, configured according to the following specifications:

Input Voltage Range: 5V to 25V;

3.3V Output: Iout3 = 3A;

5.1V Output: Iout5 = 3A;

12V Output: Iout12 = 50mA;

Figure 7. L5994 Evaluation kit

18

L5994

20

19

28

27

26

25

24

3

2

VIN

1

29

6

5

13

7

22

4

32

14

11

16

31

21

30

15

VOUT3

LIN

VOUT1

VOUT2

8

9

17

12

C21

C23

C24

C22

PWROK2

R7

C19

C13

C14

C15

R3

R4

L2

D2

Q4

Q3

C17

C4

C8

D4

C27

C18

R5

C9

C10

C11

R1

R2

L1

D1

Q2

C1

C7

Q1

D3

C16

C2

R6

R8

23

C6

C3

+5VIN

10

R34

R16

R9

R33

GND

GND

GND

D98IN866B

H1STRAP

H1GATE

H1SRC

PREG5

R1GATE

I1SNS

V1SNS

V5SW

COMP1

H2STRAP

H2GATE

H2SRC

R2GATE

PGND

I2SNS

VDRLIN

V2SNS

COMP2

PWROK2

VFBLIN

SOFT1

SOFT2

CRST

VREF

SREG5

VIN

SGND

G1

G2

GND

R19

R20

NOSKIP

R13

R12

R11

R10

R14

S2S1S3

S4

C20

R15

PWROK1

OSC

RUN2

NOSKIP

RUN1

R25

R26

PWROK1

C30

C31

R28

R21

R22

R23

R24

C26

Vin2

D6

R17

C28

Vin2