LTC3530 LINER [Linear Technology], LTC3530 Datasheet - Page 3

• Manufacturer Part Number: LTC3530
• Description: Wide Input Voltage Synchronous Buck-Boost DC/DC Converter
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
PARAMETER
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
Maximum Duty Cycle
Minimum Duty Cycle
Frequency
Error Amp AVOL
Error Amp Source Current
Error Amp Sink Current
Burst Threshold
Burst Input Current
SHDN/SS Threshold
SHDN/SS Input Current
temperature range, otherwise specifi cations are at T
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3530E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlations
with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.5
Quiescent Current vs V
(Fixed Frequency Mode)
3.0
3.5
1.5 MHz
2.0 MHz
1.0 MHz
0.5 MHz
NO SWITCHING
V
IN
4.0
(V)
4.5
IN
5.0
3530 G01
5.5
CONDITIONS
Switches B and C
Switches A and D
Switches B and C
Switches A and D
Boost (% Switch C On)
Buck (% Switch A On)
V
When IC is Enabled
When EA is at Maximum Boost Duty Cycle
V
BURST
SHDN
= 5.5V
= 5.5V
50
45
40
35
30
25
20
15
10
5
0
A
2.5
Burst Mode Quiescent Current
= 25°C. V
3.0
The
l
IN
3.5
denotes the specifi cations which apply over the full operating
= V
V
IN
OUT
4.0
Note 3: Current measurements are performed when the outputs are not
switching.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may result in device degradation or failure.
(V)
= 3.6V, R
4.5
5.0
T
3530 G02
= 33.2k, unless otherwise noted.
T
A
5.5
= 25°C, unless otherwise specifi ed.
l
l
l
l
l
0.5
0.0
3.5
3.0
2.5
2.0
1.5
1.0
2.5
Peak Current Clamp vs V
MIN
100
0.7
0.4
80
3.0
3.5
0.21
0.24
0.85
0.01
TYP
300
300
0.1
0.1
1.6
90
90
1
1
V
IN
LTC3530
4.0
(V)
MAX
1.3
1.4
10
4.5
5
0
2
1
IN
5.0
3530 G03
UNITS
3530fb
3
MHz
5.5
μA
μA
dB
μA
μA
μA
μA
%
%
%
Ω
Ω
V
V
V