Datasheet

LT3692A
8
3692afc
For more information www.linear.com/3692A
Typical perForMance characTerisTics
Boost Current vs Temperature
Minimum Boost Voltage
vs Temperature
CLKOUT Frequency
vs RT/SYNC Resistance 5.0V Efficiency and Power Loss
2.5V Efficiency and Power Loss
3.3V Efficiency and Power Loss
1.8V Efficiency and Power Loss
Switch Peak Current
vs Temperature
TEMPERATURE (°C)
–50
0
BOOST CURRENT (mA)
10
30
40
50
100
70
0
50
75
3692A G18
20
80
90
60
–25 25
100
125
150
0.5A
1A
3A
TEMPERATURE (°C)
–50
0
PEAK CURRENT (A)
0.5
1.5
2.0
2.5
5.0
3.5
0
50
75
3692A G19
1.0
4.0
4.5
3.0
–25 25
100
125
150
V
ILIM
= 1.5V
V
ILIM
= 0.5V
V
ILIM
= 0V
TEMPERATURE (°C)
–50
VOLTAGE (V)
2.00
2.50
150
3692A G20
1.50
1.00
0
50
100
–25
25
75
125
3.00
1.75
2.25
1.25
2.75
I
SW
= 3A
RT/SYNC RESISTANCE (kΩ)
0
0
CLKOUT FREQUENCY (kHz)
250
500
750
1500
1750
2000
2250
2500
20
40
50 80
3692A G21
1000
1250
10 30
60
70
OUTPUT CURRENT (A)
0
60
EFFICIENCY (%)
PLOSS (W)
70
75
80
90
1.0
2.0
2.5
3692A G22
65
85
0
0.5
3.0
1.5
2.0
2.5
1.0
0.5 1.5
3.0
3.5
4
EFFICIENCY
POWER LOSS
V
IN
= 12V
F
SW
= 1MHz
CH1 = 5V
CH2 = 0V
OUTPUT CURRENT (A)
0
55
EFFICIENCY (%)
PLOSS (W)
65
70
85
75
1.0
2.0
2.5
3692A G25
60
80
0
0.5
1.0
1.5
3.0
2.5
2.0
0.5 1.5
3.0
3.5
4
EFFICIENCY
POWER LOSS
V
IN
= 12V
F
SW
= 1MHz
CH1 = 1.8V
CH2 = 0V
OUTPUT CURRENT (A)
0
EFFICIENCY (%)
PLOSS (W)
80
85
4
3692A G24
60
65
1.0
2.0
3.0
0.5
1.5
2.5
3.5
90
75
70 1.0
2.0
0
3.0
0.5
1.5
2.5
EFFICIENCY
V
IN
= 12V
F
SW
= 1MHz
CH1 = 2.5V
CH2 = 0V
POWER LOSS
OUTPUT CURRENT (A)
0
EFFICIENCY (%)
PLOSS (W)
75
70
4
3692A G23
60
1
2
3
0.5
1.5
2.5
3.5
90
80
65
85
2.0
0.5
0
3.0
1.0
1.5
2.5
EFFICIENCY
POWER LOSS
V
IN
= 12V
FREQ = 1MHz
CH1 = 3.3V
CH2 = 0V