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changes.mady.by.user Fabio De Riccardis

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changes.mady.by.user Sergio Pavesi

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1.2 V, 2.5 V and 3.3 V voltage rails are provided by corresponding step-down regulator DC/DC converters, each one capable of providing up to 3 A of output current. These three regulators are synchronized to switch with 120° phase lag, to improve EMC, and to reduce input ripple. The synchronization circuit can be omitted in cost sensitive applications (please contact Trenz Electronic).
Power supply inputs and outputs are made available at B2B connectors JM4 and JM5 for user applications.

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Warning

Each pin of B2B connectors JM4 and JM5 is capable of a maximum current of 1.0 A.

Scroll pdf title
titleOn-board power rails summary.

power-rail
name

nominal
voltage (V)

maximum
current (A)

power
source

system
supply

user
supply

Vb2b

4.0 to 7.0

4.0

(4 pin × 1.0 A/pin)

JM5

module

-

Vusb

5.0

0.5

J1

module

-

Vsup

4.0 to 7.0

< 0.5

Vusb

3 × DC/DC

DC/DC sync

power-fail

JM5 (≤1.0 A)

< 4

Vb2b

3.3V

3.3

3.0

Vsup â-º DC/DC

module

JM4 (≤1.0 A)

JM5 (≤1.0 A)

2.5V

2.5

3.0

Vsup â-º DC/DC

DDR SDRAM

JM5 (≤1.0 A)

1.2V

1.2

3.0

Vsup â-º DC/DC

VCCINT

JM5 (≤1.0 A)

VCCAUX

2.5

0.3

3.3V â-º LDO

VCCAUX

JM4 (≤1.0 A)

3.3

< 3.0

3.3V

VCCCIO0

2.5

< 3.0

2.5V

VCCO
(bank 0)

JM4 (≤1.0 A)

3.3

< 3.0

3.3V

JM4 (≤1.0 A)

1.10 to 3.60

2.0

(2 pin × 1.0 A/pin)

JM4

(30 + 44)

JM4

(30 / 44)

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