PM6641 STMicroelectronics, PM6641 Datasheet - Page 12

• Manufacturer Part Number: PM6641
• Description: IC MONO VR DDR2/3 PC VFQFPN-48
• Manufacturer: STMicroelectronics

Specifications of PM6641

• Applications: Converter, DDR2, DDR3
• Voltage - Input: 2.7 ~ 5.5 V
• Number Of Outputs: 3
• Voltage - Output: 0.8 ~ 5.5 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN
• Output Voltage: 0.9 V
• Output Current: 3 A
• Input Voltage: 2.7 V to 5.5 V
• Switching Frequency: 1000 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• For Use With: 497-8425 - KIT EVAL PM6641 CHIPSET/DDR2/3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical characteristics
Table 6.
12/47
Power management section – chipset 1.05 V rail
Switching node – DDR2/3 rails
Soft-end section – DDR2/3 rails
Power management section – DDR2/3 rails
R
R
Symbol
I
DSon,HS
DSon,LS
t
INLEAK
Onmin
Electrical characteristics (continued)
LS turn-on VFB_1SX threshold
with internal divider
LS turn-on VFB_1SX threshold
with external divider
EN_1S05 turn-off level
EN_1S05 turn-on level
Minimum on-time
High side PMOS Ron
Low side NMOS Ron
VIN_1S8 leakage current
Peak current limit
VDDQ discharge resistance in
non-tracking discharge mode
VTTREF discharge resistance
in non-tracking discharge mode
VTTFB discharge resistance in
non-tracking discharge mode
V
tracking/Non-tracking discharge
transition with internal divider
V
tracking/Non-tracking discharge
transition with external divider
DSCG turn-off level
DSCG turn-on level
EN_1S8 (S5), EN_VTT (S3)
Turn-Off Level
EN_1S8 (S5), EN_VTT (S3)
Turn-On Level
FB_1SX
FB_1SX
threshold for final
threshold for final
Parameter
Doc ID 13510 Rev 3
VFB_S1X to OUT_X
VFB_S1X to external divider
V
V
all EN_1S8 low
R
VFB_S1X to OUT_X
VFB_S1X to external divider
V
V
AVCC
AVCC
AVCC
AVCC
CSNS
= +5 V
= V
= +5 V
= +5 V
= 50 kΩ
Test condition
VCC
= 5 V,
+3.3 V
V
V
+5 V
IN
IN
=
=
Min
0.8
0.8
3.5
Values
0.340
0.160
0.16
Typ
200
200
0.2
6.1
90
80
25
40
Max
130
120
1.5
PM6641
2
1
1
2
Unit
mΩ
μA
ns
Ω
Ω
Ω
V
V
A
V
V
V