LTC3525-3.3 Datasheet, PDF (3/12 Pages) Linear Technology – 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

LTC3525-3.3/LTC3525-5
ELECTRICAL CHARACTERISTICS (LTC3525-5)
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T_A = 25°C.
V_IN = 2.4V, V_SHDN = 2.4V, V_OUT = 5V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Input Start-Up Voltage
0.85
1
V
Output Voltage
Quiescent Current, V_OUT
Quiescent Current, V_IN
Quiescent Current, V_IN - Shutdown
(Note 6)
SHDN = V_IN
SHDN = V_IN
SHDN = 0V, V_OUT = 0V
Not Including Switch Leakage
● 4.85 5.00 5.15
V
8
18
µA
1.5
5
µA
0.1
1
µA
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
Peak Current Limit
V_IN = V_OUT = V_SW = 5V, SHDN = 0V
V_IN = V_SW = 5V, V_OUT = 0V, SHDN = 0V
0.1
1
µA
0.1
3
µA
0.4
Ω
0.7
Ω
0.4
0.5
A
SHDN Threshold
0.4
0.6
1
V
SHDN Input Current
V_SHDN = V_IN or V_OUT
0.01
1
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LTC3525E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Specification is guaranteed by design and not 100% tested in
production.
Note 4: Current Measurements are performed when the LTC3525 is not
switching.
Note 5: 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 impair device reliability.
Note 6: Consult LTC Marketing for other output voltage options.
3525f
3