34704 datasheet(19/54 Pages) FREESCALE

19 / 54 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

34704

FUNCTIONAL DESCRIPTION

FUNCTIONAL PIN DESCRIPTION

REG2 BUCK STAGE SWITCHING NODE (SW2D)

The inductor is connected between this pin and the SW2U

pin.

REG2 REGULATED OUTPUT VOLTAGE PIN

(VOUT2)

Connect this pin to the load and to the output filter as close

to the pin as possible.

REG2 BOOST STAGE SWITCHING NODE (SW2U)

The inductor is connected between this pin and the SW2D

pin.

REG5 BOOST STAGE SWITCHING NODE (SW5U)

The inductor is connected between this pin and the SW5D

pin.

REG5 REGULATED OUTPUT VOLTAGE PIN

(VOUT5)

Connect this pin to the load and to the output filter as close

to the pin as possible.

REG5 BUCK STAGE SWITCHING NODE (SW5D)

The inductor is connected between this pin and the SW5U

pin.

REG5 POWER SUPPLY INPUT VOLTAGE (PVIN5)

This is the connection to the drain of the high side switch

FET. Input decoupling /filtering is required for proper REG5

operation.

REG5 BUCK STAGE BOOTSTRAP CAPACITOR

INPUT PIN (BT5D)

Connect a 1.0

μF capacitor between this pin and SW5D

pin to enhance the gate of the Switch Power MOSFET.

REG5 VOLTAGE FEEDBACK INPUT FOR

VOLTAGE REGULATION/PROGRAMMING (FB5)

Connect the feedback resistor divider to this pin.

REG5 COMPENSATION NETWORK CONNECTION

(COMP5)

REG5 compensation network connection.

POWER GROUND CONNECTION FOR ALL OF THE

REGULATORS EXCEPT REG7 (PGND)

Power Ground Connection for all of the regulators except

REG7.

34704 Datasheet(PDF) 19 Page - Freescale Semiconductor, Inc

34704 Datasheet(HTML) 19 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Datasheet Download

Link URL