LTC3459 LINER [Linear Technology], LTC3459 Datasheet - Page 3

• Manufacturer Part Number: LTC3459
• Description: 10V Micropower Synchronous Boost Converter in ThinSOT
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR A CE CHARACTERISTICS
1000
4000
3500
3000
2500
2000
1500
500
1.2
1.0
0.8
0.6
0.4
0.2
3.0
2.5
2.0
1.5
1.0
0.5
0
0
–40
1.5
1.5
Minimum R
Switching Frequency
vs V
Shutdown Threshold Voltage
vs Temperature
2
–20
IN
2
L = 22 H
at Various V
V
V
V
V
SHDN FALLING
2.5
OUT
OUT
OUT
OUT
2.5
TEMPERATURE ( C)
0
= 10V
= 7.5V
= 5V
= 3.3V
OUT
3
3
SHDN RISING
V
V
20
vs V
IN
3.5
IN
3.5
(V)
(V)
OUTS
IN
40
4
4
4.5
L = 22 H
V
V
V
V
W
4.5
60
OUT
OUT
OUT
OUT
= 10V
= 7.5V
= 5V
= 3.3V
5
3459 G07
5
3459 G04
3459 G01
80
U
5.5
5.5
INDUCTOR
50mA/DIV
50mA/DIV
CURRENT
CURRENT
–0.5
–1.0
–1.5
–2.0
400
350
300
200
150
100
250
2.0
1.5
1.0
0.5
50
SW
0
0
1.5
1.5
Minimum P
V
V
L = 22 H
Burst Cycle
V
V
L = 22 H
OUT
OUT
IN
OUT
2
2
= 3.3V
= 5V
Regulation vs V
= 5V
4.7 F
10 F
22 F
47 F
V
V
V
V
L = 22 H
OUT
OUT
OUT
OUT
2.5
2.5
= 10V
= 7.5V
= 5V
= 3.3V
OUT
3
3
V
V
vs V
1 s/DIV
IN
IN
3.5
3.5
(V)
(V)
IN
4
4
IN
and C
4.5
4.5
OUT
(T
5
5
3459 G05
3459 G02
A
3459 G08
= 25 C unless otherwise noted.)
5.5
5.5
INDUCTOR
50mA/DIV
50mA/DIV
CURRENT
CURRENT
16
14
12
10
6
5
2
0
8
6
4
2
0
4
3
1
SW
–40
–40
N-Channel and P-Channel
MOSFET R
V
vs Temperature
V
V
V
IN
IN
OUT
OUT
Switch Pin Waveform
V
V
L = 22 H
IN
OUT
= 3.3V
and V
– 20
–20
= 3.3V
= 5V
= 5V
= 5V
OUT
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
DS(ON)
Quiescent Current
20
20
100ns/DIV
LTC3459
PCH
I
vs Temperature
OUT
I
IN
40
40
NCH
60
60
3459 G06
3459 G03
80
80
3
3459 G09
3459f