PM6641 STMicroelectronics, PM6641 Datasheet - Page 10

• 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
4
Table 6.
10/47
Supply section all rails
Error amplifier, FB
Oscillator frequency
Comp all rails
UVP/OVP protections and PGOOD signal (SMPS only) all rails
V
I
Symbol
UVLO
PG,LEAK
OVP
UVP
I
PG,LOW
V
PG
SHDN
f
I
I
I
g
SW
CC
REF
FB
SS
m
th
th
th
th
Electrical characteristics
T
output if not otherwise specified
Electrical characteristics
a. All parameters at operating temperature extremes are guaranteed by design and statistical analysis
AVCC+VCC operating current
Total shutdown current into
VIN_x + AVCC + VCC pins
AVCC under voltage lockout
upper threshold
AVCC under voltage lockout
lower threshold
UVLO hysteresis
Error amplifier reference voltage V
FB input bias current
Soft-start current
Switching frequency
COMP_x transconductance
Overvoltage threshold
Undervoltage threshold
Power good upper threshold
Power Good lower threshold
PG_x outputs leakeage current
PG_x outputs low level
A
= 0 °C to 85 °C, AVCC = 5 V, VCC = 5 V, VIN_x = 3.3 V and LDOIN connected to 1.8 V
(not production tested).
AND
SS – all rails
Parameter
Doc ID 13510 Rev 3
V
regulators active without load
V
all EN_x low
VFB_X = 0.8 V
V
R
SET_SWF to VCC
R
PG_x tied to +5 V
V
(a)
AVCC
VCC
IN
FB_X
SS_X
SETSWF
SETSWF
.
= V
= +
= 0.4 V
= 0.6 V or 1V, I
= V
AVCC
5 V, all switching
= 140 kΩ
= 70 kΩ
Test condition
VCC
= V
= 5 V
VCC
= +5 V,
PG_X
= 2 mA
Min
100
792
675
116
106
4.0
3.6
56
86
Values
1000
Typ
800
500
750
300
120
110
4.1
3.9
10
60
90
Max
4.35
808
825
124
115
250
4.0
64
10
25
94
PM6641
3
1
Unit
kHz
mA
mV
mV
mV
μA
nA
μA
µS
µA
%
V