LTC1699 Datasheet, PDF (4/20 Pages) Linear Technology – SMBus VID Voltage Programmers

LTC1699 Series
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
350
T_A = 25°C
300
250
200
150
100
50
0
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
V_CC (V)
1699 G01
Resistance Between SENSE and
FB Pins vs Temperature
(LTC1699-80, LTC1699-82)
10.08
10.06
V_CC = 2.7V TO 5.5V
10.04
10.02
10.00
9.98
9.96
9.94
9.92
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G18
SCL, SDA, SEL and VRON
Hysteresis vs Temperature
0.07
0.06
V_CC = 5.5V
0.05
V_CC = 2.7V
0.04
0.03
0.02
0.01
0
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G06
4
Supply Current vs Temperature
300
V_CC = 5.5V
250
200
V_CC = 2.7V
150
100
50
0
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G02
SCL, SDA, SEL and VRON Input
High and Low Voltage vs
Temperature
1.40
1.35
INPUT HIGH, V_CC = 5.5V
1.30
INPUT LOW, V_CC = 5.5V
1.25
INPUT HIGH, V_CC = 2.7V
1.20
INPUT LOW, V_CC = 2.7V
1.15
1.10
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G04
SCL, SDA, SEL and VRON
Hysteresis vs Supply Voltage
0.10
0.09 ^{T = 25°C}
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
SUPPLY VOLTAGE (V)
1699 G07
Resistance Between SENSE and FB
Pins vs Temperature (LTC1699-81)
20.08
20.06
V_CC = 2.7V TO 5.5V
20.04
20.02
20.00
19.98
19.96
19.94
19.92
19.90
19.88
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G03
SCL, SDA, SEL and VRON Input
High and Low Voltage vs Supply
Voltage
1.5
T_A = 25°C
1.4
INPUT HIGH
1.3
1.2
INPUT LOW
1.1
1.0
0.9
0.8
2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
SUPPLY VOLTAGE (V)
1699 G05
SDA, CPU_ON, IO_ON, CLK_ON
Output Low Voltage vs
Temperature
0.25
I_PIN = 3mA
0.20
V_CC = 2.7V
0.15
0.10
V_CC = 5.5V
0.05
0
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1699 G08