ltc3526lb-2 Linear Technology Corporation, ltc3526lb-2 Datasheet - Page 4

• Manufacturer Part Number: ltc3526lb-2
• Description: Ltc3526l-2/ltc3526lb-2 - 550ma 2mhz Synchronous Step-up Dc/dc Converters In 2mm ? 2mm Dfn
• Manufacturer: Linear Technology Corporation

LTC3526L-2/LTC3526LB-2
Typical perForMance characTerisTics

100
0.60
0.55
0.90
0.85
0.80
0.75
0.70
0.65
0.50
0.45
0.40
0.35
0.30
90
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
0
1.0
1.0
1.5
Start-Up Delay Time vs V
Burst Mode Threshold Current
vs V
R
V
C
L = 2.2µH
OUT
OUT
DS(ON)
1.2
1.5
IN
2.0
= 3.3V
= 10µF
1.4
(LTC3526L-2)
LEAVE BURST
vs V
2.0
2.5
1.6
OUT
1.8
2.5
3.0
V
V
V
OUT
IN
IN
2.0
(V)
(V)
PMOS
NMOS
3.0
ENTER BURST
3.5
(V)
2.2
2.4
3.5
4.0
IN
2.6
4.0
3526lb2
3526lb2
4.5
3526lb2
2.8 3.0
G08c
G07
4.5
G10
5.0
–10
70
60
50
40
30
20
10
10
–2
–4
–6
–8
35
30
25
20
15
10
5
0
0
8
6
4
2
0
–50
1.0
1.0
Burst Mode Threshold Current
vs V
Burst Mode Threshold Current
vs V
Oscillator Frequency Change
vs Temperature
NORMALIZED TO 25°C
V
C
L = 2.2µH
V
C
L = 2.2µH
OUT
OUT
OUT
OUT
1.5
–30
IN
IN
1.1
= 1.8V
= 10µF
= 5V
= 10µF
(LTC3526L-2)
(LTC3526L-2)
LEAVE BURST
–10
2.0
TEMPERATURE (°C)
1.2
2.5
10
V
V
IN
LEAVE BURST
IN
1.3
(V)
(V)
3.0
30
ENTER BURST
ENTER BURST
1.4
3.5
50
1.5
4.0
3526lb2
70
3526lb2
3526lb2
T
A
G08d
G08a
G11
= 25°C, unless otherwise noted.
1.6
4.5
90
1.3
1.2
1.1
1.0
0.9
0.8
0.7
35
30
20
15
10
–1
–3
–4
40
25
–2
0
4
3
2
0
5
1
–50
1.5
1.0
Burst Mode Threshold Current
vs V
Oscillator Frequency Change
vs V
R
NORMALIZED TO V
V
C
L = 2.2µH
NORMALIZED TO 25°C
DS(ON)
OUT
OUT
2.0
–30
IN
OUT
1.2
= 2.5V
= 10µF
(LTC3526L-2)
Change vs Temperature
–10
2.5
TEMPERATURE (°C)
1.4
3.0
10
V
V
OUT
OUT
LEAVE BURST
IN
1.6
(V)
= 3.3V
3.5
(V)
30
ENTER BURST
1.8
4.0
50
2.0
4.5
3526lb2
70
3526lb2
3526lb2
3526lb2fa
G08b
G09
G12
2.2
5.0
90