PM6641 STMicroelectronics, PM6641 Datasheet - Page 11

• 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

PM6641
Table 6.
Thermal shutdown
Switching node – chipset 1.5 V rail
Soft-end section – chipset 1.5 V rail
Power management section – chipset 1.5 V rail
Switching node – chipset 1.05 V rail
Soft end section – chipset 1.05 V rail
R
R
R
R
Symbol
I
I
T
DSon,HS
DSon,HS
DSon,LS
DSon,LS
t
t
INLEAK
INLEAK
Onmin
Onmin
SHDN
Electrical characteristics (continued)
Thermal shutdown threshold
Thermal shutdown hysteresis
Minimum on-time
High side PMOS Ron
Low side NMOS Ron
VIN_1S5 leakage current
Peak current limit
Discharge resistance
LS turn-on VFB_1SX threshold
with internal divider
LS turn-on VFB_1SX threshold
with external divider
EN_1S5 turn-off level
EN_1S5 turn-on level
Minimum on-time
High side PMOS Ron
Low side NMOS Ron
VIN_1S05 leakage current
Peak current limit
Discharge resistance
Parameter
Doc ID 13510 Rev 3
V
EN_1S5 low
R
VFB_S1X to OUT_X
VFB_S1X to external divider
V
V
EN_1S05 low
R
AVCC
AVCC
AVCC
CSNS
CSNS
= V
= 5 V
= V
= 50 kΩ
= 50 kΩ
Test condition
VCC
VCC
= +5 V, all
= +5 V, all
+3.3 V
+3.3 V
V
V
V
V
+5 V
+5 V
IN
IN
IN
IN
=
=
=
=
Electrical characteristics
Min
0.8
Values
0.29
0.16
Typ
100
150
200
150
180
100
3.9
5.1
15
25
70
25
Max
220
160
160
110
1
2
1
1
11/47
Unit
mΩ
mΩ
μA
μA
°C
ns
ns
Ω
Ω
A
V
V
A