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

• Manufacturer Part Number: LTC3407-4
• Description: Dual Synchronous 800mA 2.25MHz Step-Down DC/DC Regulator
• Manufacturer: Linear Technology

LTC3407-4
TYPICAL PERFOR A CE CHARACTERISTICS
4
0.615
0.610
0.605
0.600
0.595
0.590
0.585
100
100
80
50
95
90
85
75
70
65
60
55
95
90
85
80
75
70
65
60
–50
2
Efficiency vs Input Voltage
1
Efficiency vs Load Current
Reference Voltage vs
Temperature
V
Burst Mode OPERATION
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
OUT
V
LOAD = 100mA
OUT
IN
–25
= 3.6V
= 1.8V
= 2.5V
3
V
LOAD = 1mA
IN
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
0
TEMPERATURE (°C)
10
= 3.6V
25
LOAD = 10mA
LOAD = 800mA
4
50
V
IN
100
V
= 2.7V
75
IN
LTC1273/75/76 • F25
5
W
= 4.2V
100
34074 G04
34074 G07
U
1000
125
6
100
2.5
2.4
2.3
2.2
2.1
2.0
500
450
400
350
300
250
200
90
80
70
60
–50
Oscillator Frequency vs
Temperature
1
Efficiency vs Load Current
1
R
V
DS(ON)
IN
–25
SYNCHRONOUS
= 3.6V
2
SWITCH
OPERATION
Burst Mode
vs Input Voltage
0
LOAD CURRENT (mA)
TEMPERATURE (°C)
10
V
NO LOAD ON OTHER CHANNEL
3
IN
25
MAIN
SWITCH
= 3.6V, V
V
IN
4
(V)
PULSE SKIP
MODE
50
OUT
100
5
75
= 1.8V
100
6
34074 G05
34074 G11
34074 G08
1000
125
7
550
500
450
400
350
300
250
200
150
100
–10
– 2
– 4
– 6
– 8
10
–1
–2
–3
–4
8
6
4
2
0
4
3
2
1
0
–50
2
1
Oscillator Frequency Deviation
vs Supply Voltage
R
Load Regulation
PULSE SKIP
OPERATION
Burst Mode
DS(ON)
–25
MODE
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
3
0
vs Temperature
www.DataSheet4U.com
SUPPLY VOLTAGE (V)
= 4.2V
LOAD CURRENT (mA)
TEMPERATURE (°C)
10
V
NO LOAD ON OTHER CHANNEL
IN
25
= 3.6V, V
V
IN
50
4
= 3.6V
V
IN
OUT
75
= 2.7V
100
= 1.8V
100
5
34074 G06
125
34074 G09
34074 G12
34074f
1000
150
6