ltc1706-61 Linear Technology Corporation, ltc1706-61 Datasheet - Page 3

• Manufacturer Part Number: ltc1706-61
• Description: 5-bit Vid Voltage Programmer For Amd Opteron Cpus
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
PIN
VID0 (Pin 1): LSB Programming Input. Low = GND,
High = V
to the output sense voltage.
VID1 (Pin 2): 4th MSB Programming Input. Low = GND,
High = V
to the output sense voltage.
VID2 (Pin 3): 3rd MSB Programming Input. Low = GND,
High = V
to the output sense voltage.
VID3 (Pin 4): 2nd MSB Programming Input. Low = GND,
High = V
to the output sense voltage.
–0.05
–0.15
–0.25
–0.35
0.35
0.25
0.15
0.05
U
140
120
100
80
60
40
20
0.775
–50
VID Sense Accuracy
I
FUNCTIONS
VID-PULLUP
V
VID4 = 0V
VID0 = VID1 = VID2 = VID3 = OPEN
CC
CC
CC
CC
CC
U
= 5V
0.975
or Float. Grounding VID2 adds 100mV
or Float. Grounding VID3 adds 200mV
or Float. Grounding VID0 adds 25mV
or Float. Grounding VID1 adds 50mV
SENSE VOLTAGE (V)
TEMPERATURE ( C)
0
vs Temperature
1.175
U
50
VID
V
V
1.375
W
CC
CC
= 5.5V
= 2.7V
1706-61 G04
1706-61 G01
U
1.575
100
–0.05
–0.15
–0.25
–0.35
0.35
0.25
0.15
0.05
2.0
1.5
1.0
0.5
0
–60
–50
VID Sense Accuracy vs
Temperature
Supply Current vs Temperature
V
CC
ALL VID INPUTS OPEN
V
–40
CC
= 5.5V
= 5V
V
SENSE
–20
V
SENSE
TEMPERATURE ( C)
TEMPERATURE ( C)
0
= 0.8V
0
V
= 1.15V
V
CC
SENSE
20
V
5.5V.
SENSE (Pin 6): Regulator Output Voltage. Connect
directly to regulator output sense node.
VID4 (Pin 7): MSB Programming Input. Low = GND, High
= V
sense voltage.
NC (Pin 8): No Connect.
GND (Pin 9): Ground. Connect to regulator signal ground.
FB (Pin 10): Feedback Input. Connect to the 0.6V feedback
pin of a compatible regulator.
= 3.3V
CC
= 1.55V
CC
40
(Pin 5): Power Supply Voltage. Range from 2.7V to
50
or Float. Grounding VID4 adds 400mV to the output
60
V
CC
= 2.7V
1706-61 G02
1706-61 G05
80
100
100
10.10
10.05
10.00
9.95
9.90
1.0
0.5
0
–50
2.5
R
Supply Current vs Supply Voltage
FB1
ALL VID INPUTS OPEN
T
A
= 25 C
3.0
vs Temperature
3.5
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
0
LTC1706-61
4.0
4.5
50
5.0
5.5
1706-61 G06
1706-61 G03
170661f
3
100
6.0