LTC3624_15 Datasheet, PDF (6/20 Pages) Linear Technology – 17V, 2A Synchronous Step-Down Regulator with 3.5A Quiescent Current

LTC3624/LTC3624-2
Typical Performance Characteristics T_J = 25°C, unless otherwise noted.
Efficiency vs Input Voltage
100
I_LOAD = 1A
90
80
I_LOAD = 10mA
70
60
50
40
30
20
Burst Mode OPERATION
10
V_OUT = 5V
FREQ = 1MHz
0
0
5
10
15
20
V_IN (V)
36242 G10
Reference Voltage
vs Temperature
600.5
600.0
599.5
599.0
598.5
598.0
597.5
–50
0
50
100
TEMPERATURE (°C)
150
36242 G13
Oscillator Frequency
vs Temperature
2.0
Oscillator Frequency
vs Supply Voltage
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
0
–50 –25 0 25 50 75 100 125 150
2
TEMPERATURE (°C)
36242 G11
7
12
SUPPLY VOLTAGE (V)
17
36242 G12
R_DS(ON) vs Input Voltage
600
500
400
300
TOP FET
200
BOTTOM FET
100
0
2 4 6 8 10 12 14 16
V_IN (V)
36242 G14
R_DS(ON) vs Temperature
600
V_IN = 12V
500
400
300
TOP FET
200
BOTTOM FET
100
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
36242 G15
Load Regulation
0.80
0.60
0.40
0.20
0
FORCED CONTINUOUS MODE
–0.20
–0.40
–0.60
–0.80
0
0.5
1
1.5
LOAD CURRENT (A)
2
36242 G16
Line Regulation
0.80
0.60
0.40
0.20
0
–0.20
–0.40
–0.60
–0.80
2 4 6 8 10 12 14 16
V_IN (V)
36242 G17
6
For more information www.linear.com/LTC3624
V_IN vs Peak Current Limit
5
4
25°C
3
150°C
2
1
0
0 2 4 6 8 10 12 14 16 18 20
V_IN (V)
36242 G18
36242fc