Datasheet

LTC3630A
6
3630afa
For more information www.linear.com/LTC3630A
Typical perForMance characTerisTics
Switch Leakage Current
vs Temperature
RUN Comparator Threshold
Voltage vs Temperature Operating Waveforms
Quiescent V
IN
Supply Current
vs Temperature
Switch On-Resistance
vs Input Voltage
Switch On-Resistance
vs Temperature
TEMPERATURE (°C)
–55 –25
0
V
IN
SUPPLY CURRENT (µA)
8
20
5
65
95
3630a G16
4
16
12
35
125
155
V
IN
= 12V
SLEEP
SHUTDOWN
INPUT VOLTAGE (V)
0
0
SWITCH ON-RESISTANCE (Ω)
0.2
0.6
0.8
1.0
2.0
1.4
20
40
TOP
50
3630a G17
0.4
1.6
1.8
1.2
10
30
7060
BOTTOM
TEMPERATURE (°C)
–55
SWITCH ON-RESISTANCE (Ω)
1.4
35
3630a G18
0.8
0.4
–25 5 65
0.2
0
1.6
1.2
1.0
0.6
95 125
155
V
IN
= 12V
TOP
BOTTOM
TEMPERATURE (°C)
–55
SWITCH LEAKAGE CURRENT (µA)
10
35
3630a G19
4
0
–25 5 65
–2
–4
–6
14
12
8
6
2
95 125
155
V
IN
= 65V
SW = 65V
SW = 0V
TEMPERATURE (°C)
–55
RUN COMPARATOR THRESHOLD (V)
1.20
1.25
1.30
35 95
3630a G20
1.15
1.10
–25 5
65 125
155
1.05
1.00
RISING
FALLING
OUTPUT
VOLTAGE
50mV/DIV
SWITCH
VOLTAGE
50V/DIV
INDUCTOR
CURRENT
500mA/DIV
10µs/DIVV
IN
= 76V
V
OUT
= 5V
I
LOAD
= 400mA
FIGURE 13 CIRCUIT
3630a
G21