LTC3409 LINER [Linear Technology], LTC3409 Datasheet - Page 4

• Manufacturer Part Number: LTC3409
• Description: 600mA Low Vin Buck Regulator in 3mm x 3mm DFN
• Manufacturer: LINER [Linear Technology]

1: 2.5V
2: 3.6V
3: 4.2V
4: 2.5V
5: 3.6V
6: 4.2V
(From Typical Application on the front page except for the resistive divider resistor values)
LTC3409
TYPICAL PERFOR A CE CHARACTERISTICS
4
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
IN
IN
IN
IN
IN
IN
0.1
0.1
Efficiency/Power Lost
vs Load Current, V
Efficiency vs Load Current
V
, BURST
, BURST
, BURST
, PULSE SKIP
, PULSE SKIP
, PULSE SKIP
2.7V
BURST
OUT
IN
12
= 2.5V
10
8
2.7V
3.6V
1
1
IN
LOAD CURRENT (mA)
LOAD CURRENT (mA)
1
2
3
4.2V
IN
7: POWER LOST, 2.5V
8: POWER LOST, 2.5V
9: POWER LOST, 3.6V
10: POWER LOST, 3.6V
11: POWER LOST, 4.2V
12: POWER LOST, 4.2V
IN
9
11
4
10
10
4.2V
PULSE SKIP
OUT
5
7
3.6V
IN
= 1.8V
6
IN
100
100
W
IN
IN
IN
IN
IN
IN
, BURST
, PULSE SKIP
, BURST
3409 G01
3409 G04
, PULSE SKIP
, BURST
, PULSE SKIP
U
1000
1000
1.0
0.1
0
100
90
80
70
60
50
40
30
20
10
0
0.1
100
Efficiency vs Load Current
V
2.5V
60
90
80
70
50
40
30
20
10
OUT
BURST
0
1.5
Efficiency vs Input Voltage
V
IN
OUT
= 1.2V
3.1V
1
= 1.2V, Burst Mode Operation
I
I
I
1.6V
LOAD CURRENT (mA)
OUT
OUT
OUT
IN
PULSE SKIP
2.5
1.6V
IN
= 0.1mA
= 1mA
= 10mA
INPUT VOLTAGE (V)
IN
10
3.5
3.1V
2.5V
IN
IN
I
I
I
100
OUT
OUT
OUT
= 100mA
= 600mA
= 800mA
4.5
3409 G05
1000
3409 G02
5.5
0.618
0.617
0.616
0.615
0.614
0.613
0.612
0.611
0.610
0.609
0.608
100
60
90
80
70
50
40
30
20
10
0
–50
1.5
Efficiency vs Input Voltage
V
Reference Voltage
vs Temperature
OUT
–30
= 1.2V, Pulse Skip
–10
2.5
I
OUT
10
I
INPUT VOLTAGE (V)
TEMPERATURE (°C)
OUT
= 800mA
30
= 1mA
I
OUT
3.5
50
I
OUT
= 0.1mA
I
OUT
70 90
= 10mA
I
= 100mA
OUT
4.5
= 600mA
110
130
3409 G03
1011 G06
3409f
150
5.5