L6910 - L6910A

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15A HTSSOP16 DEMO BOARD DESCRIPTION

A specific Demo Board has been realized for the HTSSOP16 package. The features are the same of the 15A

Demo Board previously described but thermal performance are improved. The PGOOD signal is used as a logic

In case of input voltage higher than 7V (PGOOD Pin Maximum Absolute Rating) a 5V reference is re-

quired.

Figure 21. 15A HTSSOP16 Demo Board Schematic

Table 11. Part List

Reference

Description

Manufacturer

R1

N.C

R2

10K

5% 125mW

NEOHM

SMD 0805

R3

4.7K

5% 125mW

NEOHM

SMD 0805

R4

1K Ohm

5% 125mW

NEOHM

SMD 0805

R5

2.7K

5% 125mW

NEOHM

SMD 0805

R6

10 Ohm

5% 125mW

NEOHM

SMD 0805

R7

560 Ohm

5% 125mW

NEOHM

SMD 0805

R8

N.C

R9

0 Ohm

NEOHM

SMD 0805

R10

14K

5% 125mW

NEOHM

SMD 0805

R11

6.98K

5% 125mW

NEOHM

SMD 0805

R12

2.61K

5% 125mW

NEOHM

SMD 0805

R13

1.74K

5% 125mW

NEOHM

SMD 0805

R14

0 Ohm

NEOHM

SMD 0805

R15

0 Ohm

NEOHM

SMD 0805

R16

N.C

C1,C3

100uF 20V

OSCON

20SA100M

RADIAL 10X10.5

C9,C10

330uF - 6.3V

POSCAP

6TPB330M

SMD7343

L2

R7

C1- C3

C14

C4

Q4-6

Q1-3

D2

C17

F1

14

15

11

12

3

1

U1

L6910A

VIN

VOUT

PWRGD

7

13

6

4

2

16

8

10

VCC

GND

VREF

SS

OSC

OCSET

UGATE

PHASE

LGATE

PGND

PGOOD

C19

R1

C21

C13

D1

-11

GNDIN

GNDOUT

R2

GNDref

+Vref

C12

GNDRef

Ref IN

C16

C15

R6

C18

9

L1

GNDCC

VCC

R5

G2

R8

R3

R4

R9

C22

C20

S1

S2

S3

S4

S5

R10

R11

R12

R13

EAREF

BOOT

Vout

S2 S3 S4 S5

0.9

1.2

1.5

1.8

2.5

3.3

5.0

Open Open

ON

Open Open

Open Open

Open Open

Open Open

Open Open

Open Open

Open Open

ON

ON

ON

Open

Open

ON

ON

ON

ON

Open

Open

R14

R15

R16

C23