LTC3564 LINER [Linear Technology], LTC3564 Datasheet - Page 4

• Manufacturer Part Number: LTC3564
• Description: 2.25MHz, 1.25A Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

LTC3564
4
TYPICAL PERFOR A CE CHARACTERISTICS
–0.50
–0.25
1.00
0.75
0.50
0.25
100
615
610
595
585
605
600
590
90
80
70
60
50
40
0
–50
2.5
0
Load Regulation
Efficiency vs Input Voltage
Reference Voltage vs
Temperature
V
I
OUT
OUT
–25
200
I
OUT
3.0
= 1.8V
= 1.25A
= 100mA
OUTPUT CURRENT (mA)
400
0
INPUT VOLTAGE (V)
TEMPERATURE (°C)
3.5
I
I
OUT
OUT
600
25
= 0.1mA
4.0
= 10mA
800
50
4.5
1000
75
I
W
OUT
V
OUT
1200 1400
5.0
= 1mA
100
= 1.8V
3564 G04
3564 G07
3564 G01
U
125
5.5
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
–0.2
–0.4
–0.6
100
0.6
0.4
0.2
90
80
70
60
50
40
30
20
10
0
0
–50
0.1
2.5
Efficiency vs Output Current
Oscillator Frequency vs
Temperature
Line Regulation
V
I
V
LOAD
OUT
OUT
–25
3.0
= 1.8V
= 1.2V
= 400mA
1
OUTPUT CURRENT (mA)
0
INPUT VOLTAGE (V)
TEMPERATURE (°C)
3.5
10
25
4.0
50
100
4.5
75
1000
V
V
V
IN
IN
IN
5.0
100
= 2.7V
= 3.6V
= 4.2V
3564 G02
3564 G08
3564 G05
T
10000
A
125
5.5
= 25°C, V
0.25
0.05
0.20
0.15
0.10
100
90
80
70
60
40
30
20
10
IN
50
–2
–4
–6
–8
0
6
4
2
0
0
0.1
2.5
2.5
= 3.6V, unless otherwise specified.
Frequency Variation vs V
R
Efficiency vs Output Current
V
DS(ON
OUT
3.0
3.0
= 1.5V
1
) vs Input Voltage
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
3.5
3.5
SYNCHRONOUS SWITCH
10
MAIN SWITCH
V
IN
4.0
4.0
(V)
100
4.5
4.5
IN
1000
V
V
V
IN
IN
IN
5.0
5.0
= 2.7V
= 3.6V
= 4.2V
3564 G04
3564 G09
3564 G06
10000
3564f
5.5
5.5