PM6670ASTR STMicroelectronics, PM6670ASTR Datasheet - Page 10

• Manufacturer Part Number: PM6670ASTR
• Description: IC CTLR DDR2/3 MEM PS 24VFQFPN
• Manufacturer: STMicroelectronics

Specifications of PM6670ASTR

• 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: 497-8412 - BOARD EVAL PM6670AS DDR2/3497-8411 - BOARD EVAL PM6670S DDR2/3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6305-2; PM6670ATR

Electrical characteristics
Table 6.
10/53
Current limit and zero crossing comparator
High and low side gate drivers
UVP/OVP protections and PGOOD SIGNAL (SMPS only)
Soft-start section (SMPS)
Soft-end section
V
V
PGOOD
I
Symbol
PG,LEAK
V
ZC,OFFS
I
PG,LOW
OVP
UVP
CSNS
VDDQ
DDR3 VDDQ output voltage
DDR2 VDDQ output voltage
Feedback accuracy
CSNS input bias current
Comparator offset
Positive current limit threshold
Fixed negative current limit
threshold
Zero crossing comparator
offset
HGATE driver on-resistance
LGATE driver on-resistance
Over voltage threshold
Under voltage threshold
Power-good upper threshold
Power-good lower threshold
PG leakeage current
PG low-level voltage
Soft-start ramp time
(4 steps current limit)
Soft-start current limit step
VDDQ discharge resistance
in non-tracking discharge
mode
VTT discharge resistance in
non-tracking discharge mode
Electrical characteristics (continued)
Parameter
MODE connected to AVCC,
DDRSEL tied to SGND, no load
MODE and DDRSEL connected to
AVCC, no load
MODE and DDRSEL connected to
AVCC, no load
Rsense = 1 kΩ
V
HGATE high state (pull-up)
HGATE low state (pull-down)
LGATE high state (pull-up)
LGATE low state (pull-down)
PG forced to 5 V
I
PG,SINK
PGND
Doc ID 14436 Rev 2
- V
= 4 mA
CSNS
Test condition
110
112
107
Min
-1.5
-11
1.5
67
86
15
15
-6
Typ
120
120
110
115
110
150
1.5
1.8
2.0
1.8
1.4
0.6
70
90
30
25
25
-5
3
Max
130
118
113
250
1.5
2.7
2.1
0.9
73
93
35
35
6
1
3
1
4
PM6670AS
Unit
mV
mV
mV
mV
mV
ms
μA
μA
μA
%
%
Ω
Ω
V