LTC3407-2 Linear Technology, LTC3407-2 Datasheet - Page 4

• Manufacturer Part Number: LTC3407-2
• Description: 2.25MHz Step-Down DC/DC Regulator
• Manufacturer: Linear Technology

LTC3407-2
TYPICAL PERFOR A CE CHARACTERISTICS
4
0.615
0.610
0.605
0.600
0.595
0.590
0.585
100
100
95
90
85
80
75
70
65
60
95
90
85
80
75
70
65
60
–50
Reference Voltage vs
Temperature
Efficiency vs Load Current
1
Efficiency vs Load Current
1
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
CIRCUIT OF FIGURE 1
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
CIRCUIT OF FIGURE 1
V
OUT
OUT
IN
4.2V
–25
= 3.6V
2.7V
= 2.5V
= 1.2V
2.7V
0
LOAD CURRENT (mA)
LOAD CURRENT (mA)
TEMPERATURE (°C)
3.6V
10
10
3.6V
4.2V
25
50
100
100
75
W
100
3407 G07
3407 G10
3407 G13
U
1000
1000
125
100
500
450
400
350
300
250
200
100
95
90
85
80
75
70
65
60
95
90
85
80
75
70
65
60
R
1
1
Efficiency vs Load Current
1
Efficiency vs Load Current
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
CIRCUIT OF FIGURE 1
DS(ON)
T
OUT
A
SYNCHRONOUS
2.7V
= 25°C
= 1.5V
2
SWITCH
Burst Mode OPERATION
vs Input Voltage
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
10
NO LOAD ON OTHER CHANNEL
3
4.2V
MAIN
SWITCH
3.6V
V
IN
PULSE SKIP MODE
V
4
IN
(V)
= 3.6V, V
100
100
5
OUT
6
= 1.8V
3407 G11
3407 G08
3407 G14
1000
1000
7
–0.1
–0.2
–0.3
–0.4
–0.5
550
500
450
400
350
300
250
200
150
100
0.5
0.4
0.3
0.2
0.1
–1
–2
–3
–4
4
3
2
1
0
0
–50
Load Regulation
1
2
R
Line Regulation
Burst Mode OPERATION
PULSE SKIP MODE
V
I
T
DS(ON)
OUT
OUT
A
–25
= 25°C
= 200mA
= 1.8V
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
www.DataSheet4U.com
vs Temperature
3
0
LOAD CURRENT (mA)
= 4.2V
TEMPERATURE (°C)
NO LOAD ON OTHER CHANNEL
10
25
V
V
IN
V
IN
50
4
IN
(V)
= 3.6V
= 3.6V, V
V
IN
75
= 2.7V
100
sn34072 34072fs
100
OUT
5
= 1.8V
125
3407 G15
3407 G09
3407 G12
1000
150
6