PM6670S STMicroelectronics, PM6670S Datasheet - Page 7

• Manufacturer Part Number: PM6670S
• Description: IC CTLR DDR2/3 MEM PS VFQFPN-24
• Manufacturer: STMicroelectronics

Specifications of PM6670S

• Applications: Memory, DDR2/DDR3 Regulator
• Current - Supply: 800µA
• Voltage - Supply: 4.5 V ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-VFQFN, 24-VFQFPN
• For Use With: 497-8411 - BOARD EVAL PM6670S DDR2/3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PM6670S
Table 2.
N°
18
19
20
21
22
23
24
PHASE
HGATE
LDOIN
CSNS
BOOT
VCC
VTT
Pin
Pin functions (continued)
+5 V low-side gate driver supply. Bypass with a 100 nF capacitor to PGND.
Current sense input for the switching section. This pin must be connected
through a resistor to the drain of the synchronous rectifier (R
set the current limit threshold.
Switch node connection and return path for the high-side gate driver.
High-side gate driver output
Bootstrap capacitor connection. Positive supply input of the high-side gate
driver.
Linear regulator input. Connect to VDDQ in normal configuration or to a
lower supply to reduce the power dissipation. A 10 μF bypass ceramic
capacitor is suggested for noise rejection enhancement. See
Device description on page 20
LDO linear regulator output. Bypass with a 20 μF (2x10 μF MLCC) filter
capacitor.
Doc ID 14432 Rev 4
Function
DSon
Section 7:
Pin settings
sensing) to
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