LTC3407A LINER [Linear Technology], LTC3407A Datasheet - Page 4

• Manufacturer Part Number: LTC3407A
• Description: Dual Synchronous 600mA, 1.5MHz Step-Down DC/DC Regulator
• Manufacturer: LINER [Linear Technology]

LTC3407A
TYPICAL PERFORMANCE CHARACTERISTICS
4
0.615
0.610
0.605
0.600
0.595
0.590
0.585
100
60
90
80
70
50
40
30
20
10
0
–50
2
Effi ciency vs Input Voltage
Reference Voltage
vs Temperature
V
CIRCUIT OF FIGURE 3
V
100mA
OUT
IN
–25
= 3.6V
200mV/DIV
100mV/DIV
500mA/DIV
500mA/DIV
= 1.8V
V
V
3
I
LOAD
OUT1
OUT2
1mA
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
I
L
Load Step
V
V
I
CIRCUIT OF FIGURE 3
25
LOAD
IN
OUT
= 3.6V
4
= 1.8V
= 50mA TO 600mA
50
10mA
75
5
600mA
20μs/DIV
100
3407A G05
3407A G08
125
6
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
500
450
400
350
300
250
200
3407 G03
–50
Oscillator Frequency
vs Temperature
1
R
DS(ON)
–25
SYNCHRONOUS
2
vs Input Voltage
SWITCH
0
TEMPERATURE (°C)
3
MAIN
SWITCH
25
V
IN
4
500mA/DIV
(V)
50
2V/DIV
1V/DIV
V
OUT1
5
V
75
IN
I
L
Soft Start
V
V
I
CIRCUIT OF FIGURE 4
LOAD
IN
OUT
100
6
3407A G09
= 3.6V
3407A G06
T
= 1.8V
= 500mA
A
125
= 25°C unless otherwise specifi ed.
7
1ms/DIV
550
500
450
400
350
300
250
200
150
100
1.8
1.7
1.6
1.5
1.4
1.3
1.2
–50
2
Oscillator Frequency
vs Supply Voltage
R
DS(ON)
–25
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
3
vs Temperature
0
SUPPLY VOLTAGE (V)
= 4.2V
TEMPERATURE (°C)
3407 G04
25
V
IN
50
4
= 3.6V
V
IN
75
= 2.7V
100
5
125
3407A G10
3407A G07
3407afa
150
6