1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D

D

C

C

B

B

A

A

5

7

SK-MB9DF125-001

Michael Köhler

05_power.SchDoc

Product:

Date:

File:

Sheet:

of

Drawn by:

5/10/2012

Doc Revision:

HW Revision:

V0.3

V1.0

Fujitsu Semiconductor

Europe GmbH

http://mcu.emea.fujitsu.com

microcontroller_info@de.fujitsu.com

L10

1.5µH

C75

2n2

C66

220n

C73

4µ7

GND

Solder exposed Pad to

large copper plane

under IC.

LT1765EFE-5

Vin

3

SW

5

SHDN

11

FB

12

Vin

4

SW

6

NC

7

NC

10

NC

15

U5

D1

BAT42W

10MQ040N

D4

GND

C67

220µ

Vin

S1

Power ON/OFF

4

2

X4

DCIN

Outer = GND

C88

2n2

C80

220n

C87

4µ7

GND

Solder exposed Pad to

large copper plane

under IC.

LT1765EFE-3.3

Vin

3

SW

5

SHDN

11

FB

12

Vin

4

SW

6

NC

7

NC

10

NC

15

U6

10MQ040N

D6

GND

C81

220µ

5V0

/************************************************************************/

/*

(C) Fujitsu Semiconductor Europe GmbH

*/

/* The schematic is provided without charge for demonstration purposes

*/

/* only, subject to alterations.

*/

/* FSEU does not warrant that the deliverables do not infringe any

*/

/* third party intellectual property right (IPR). In the event that

*/

/* the deliverables infringe a third party IPR it is the sole

*/

/* responsibility of the customer to obtain necessary licenses to

*/

/* continue the usage of the deliverable.

*/

/* FSEU disclaims any warranty and liability.

*/

/* (V1.3)

*/

/************************************************************************/

All parts in brackets [] are not solderd

VIN

1

RON

2

EN

3

SS

5

FB

6

VOUT

7

U7

LMZ14203

GND

GND

1V2

3V3

GND

GND

GND

GND

C97

22n

L11

BLM31PG121SN1

GND

D2

MBRA340T3

D3

P6SMB18A

GND

C68

100µ

9..12VDC/3A

D5

BAT42W

5V0

5V0

3V3

C94

100µ

C96

100µ

C74

10µ

3V3

R36

10k

T1

BC847C

GND

R35

150R

2

3

T2

BSS84

LD4

LEDrd/2mA

R38

680R

RST_X_VDP5

align in one row at PCB-edge

R30

680R

R29

1k5

LD1

LEDor/2mA

LD2

LEDye/2mA

LD3

LEDgn/4mA

3V3

1V2

R39

10k

GND

1V2

MCU_VDD

L12

BLM21PG221SN1D

C71

100n

C70

10µ

C69

100n

C72

1n

MCU_VDP3

L13

BLM21PG221SN1D

MCU_DVCC

MCU_VDP5

L16

BLM21PG600SN1D

GND

C78

100n

C77

10µ

C76

100n

C79

1n

3V3

L15

BLM21PG221SN1D

GND

C84

100n

C83

10µ

C82

100n

C85

1n

GND

C91

100n

C90

10µ

C89

100n

C92

1n

*1

5V0

*3

*1: Jumpers

closed: connect to power (default)

open: disconnect (allows current measurment)

Vin_prot

GND

*3: Jumpers

1-2: select 3.3V source

2-3: select 5.0V source (default)

open: disconnect from sources

VDP5

DVCC

JP18

DVCC

JP20

VDP5

JP21

MCU_VDP5

JP19

MCU_DVCC

JP17

MCU_VDP3

JP15

MCU_VDD

Vcc3

1

Vcc5

2

VccA

3

GND

4

RST

5

RST

6

SRST

7

PBR

8

U8

LTC1326CS8

3V3

GND

R37

30k/1%

GND

SW1

RESET

GND

1V2

R34

1k69/1%

System-voltage supervisor (SVS), manual reset

C98

100n

5V0

JP22

SVS_EN

*7

*7: Jumper

closed: enable svs-reset (default)

open: disable svs-reset

close to pad

R32

10k

VDP5

2Y

4

1Y

6

GND

2

1A

1

VCC

5

2A

3

U9

SN74LVC2G07DCK

close to LTC1326CS8

3V3

GND

RST_X_VDP5

3V3

RST_X_3V3

R33

10k

R31

10k

3V3

C86

10µ

C95

10µ

R23

0R0

R26

0R0

L14

1.5µH

Monitoring-LEDs

Power-Routing

Power Supply

C93

22n

HDR1

5V0

HDR3

3V3

HDR6

1V2

HDR2

VIN_prot

HDR4

GND

HDR5

GND

GND

R25

37k4

R27

10k

R28

1k07/1%

R24

536R/1%

GND

use diagonal pads!

double check!

RST_X_VDP5

RST_X_3V3