PM6670 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

PM6670

Complete DDR2/3 memory power supply controller

STMicroelectronics 

PM6670

Pin settings

Table 2. Pin functions (continued)

N°

Pin

Function

18

VCC

+5V Low-side Gate Driver Supply. Bypass with a 100nF capacitor to PGND.

Current Sense Input for the switching section. This pin must be connected

19

CSNS

through a resistor to the drain of the synchronous rectifier (RDSon sensing)

to set the current limit threshold.

20

PHASE Switch Node Connection and return path for the High-side Gate Driver.

21

HGATE High-side Gate Driver Output

22

BOOT

Bootstrap Capacitor Connection. Positive Supply Input of the High-side Gate

Driver.

Linear Regulator Input. Connect to VDDQ in normal configuration or to a

23

LDOIN

lower supply to reduce the power dissipation. A 10µF bypass ceramic

capacitor is suggested for noise rejection enhancement. See Section 7:

Device description on page 19

24

VTT

LDO Linear Regulator Output. Bypass with a 20µF (2x10µF MLCC) filter

capacitor.

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