ltc3526lb-2 Linear Technology Corporation, ltc3526lb-2 Datasheet - Page 5

• 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

Typical perForMance characTerisTics
AC-COUPLED
–0.25
–0.75
–1.00
20mV/DIV
–0.50
–0.1
–0.2
–0.3
–0.4
–0.5
0.50
0.25
SW PIN
0.5
0.4
0.3
0.2
0.1
2V/DIV
0
0
0.01
–60
V
V
Load Regulation
OUT
NORMALIZED TO 25°C
V
FB
OUT
–40
Fixed Frequency Switching
Waveform and V
V
V
C
vs Temperature
IN
OUT
OUT
= 1.8V
0.1
= 1.2V
–20
= 3.3V AT 100mA
= 4.7µF
TEMPERATURE (°C)
0
LOAD (mA)
1
20
200ns/DIV
10
OUT
40
Ripple
60
V
V
V
100
IN
IN
IN
= 0.9V
= 1.2V
= 1.5V
3526lb2
3526lb2 G23
80
1000
3526lb2
G13
100
G16
AC-COUPLED
20mV/DIV
–0.1
–0.2
–0.3
–0.4
–0.5
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.5
0.4
0.3
0.2
0.1
SW PIN
2V/DIV
0
0.01
V
–50
OUT
Start-Up Voltage vs Temperature
Load Regulation
V
OUT
Burst Mode Waveforms
(LTC3526L-2)
V
V
C
IN
OUT
OUT
= 3.3V
25
0.1
= 1.2V
= 3.3V AT 5mA
= 10µF
NO LOAD
TEMPERATURE (°C)
0
1
LOAD (mA)
1mA LOAD
25
20µs/DIV
10
50
LTC3526L-2/LTC3526LB-2
V
V
V
100
IN
IN
IN
75
= 1.2V
= 1.8V
= 2.4V
3526lb2
3526lb2 G24
T
A
= 25°C, unless otherwise noted.
1000
3526lb2
G14
100
G17
SHDN PIN
CURRENT
0.2A/DIV
1V/DIV
1V/DIV
–0.1
–0.2
–0.3
–0.4
–0.5
INPUT
10.0
0.5
0.4
0.3
0.2
0.1
V
9.5
9.0
8.5
8.0
7.5
7.0
OUT
0
0.01
1.5
Load Regulation
Burst Mode Quiesent Current
vs V
V
V
V
C
OUT
OUT
OUT
OUT
2.0
OUT
= 5V
0.1
= 3.3V
= 4.7µF
and I
(LTC3526L-2)
2.5
IN
LOAD (mA)
1
3.0
During Soft-Start
V
200µs/DIV
OUT
(V)
3.5
10
4.0
V
V
V
V
100
IN
IN
IN
IN
= 1.2V
= 2.4V
= 3.6V
= 4.2V
4.5
3526lb2 G25
3526lb2fa
3526lb2
3526lb2

1000
G15
5.0
G18