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LTC3586-2 Datasheet, PDF (6/36 Pages) –
LTC3586-2/LTC3586-3
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, VIN1 = VIN2 = VIN3 = VIN4 = VOUT3 = 3.8V,
VOUT4 = 5V, RPROG = 1k, RCLPROG = 3.01k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
Switching Regulator 4 (Boost)
IVIN4
IVOUT4
ILIMF4
VOUT4
VOV4
∆VOV4
RDS(ON)P4
RDS(ON)N4
ILEAK(P)4
ILEAK(N)4
RVOUT4
DBOOST(MAX)
tSS4
Input Current
Q-Current Drawn from Boost Output
NMOS Switch Current Limit
Output Voltage Adjust Range
Overvoltage Shutdown
Overvoltage Shutdown Hysteresis
PMOS RDS(ON)
NMOS RDS(ON)
PMOS Switch Leakage
NMOS Switch Leakage
VOUT4 Pull-Down in Shutdown
Maximum Boost Duty Cycle
Soft-Start Time
FB4 > 0.8V, IVOUT4 = 0µA
Shutdown, VOUT4 = 0V
FB4 = 0V
(Note 5)
Synchronous Switch
Main Switch
Synchronous Switch
Main Switch
180
1
7.5
2000 2800
5
5.3
5.5
5.7
0.1
0.25
0.17
–1
1
–1
1
10
91
94
0.375
UNITS
µA
µA
mA
mA
V
V
V
Ω
Ω
µA
µA
kΩ
%
ms
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 LTC3586E-2/LTC3586E-3 are 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
correlation with statistical process controls.
Note 3: The LTC3586E-2/LTC3586E-3 include 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 4: Total input current is the sum of quiescent current, IVBUSQ, and
measured current given by:
VCLPROG/RCLPROG • (hCLPROG +1)
Note 5: The current limit features of this part are intended to protect the
IC from short term or intermittent fault conditions. Continuous operation
above the maximum specified pin current rating may result in device
degradation or failure.
Note 6: hC/10 is expressed as a fraction of measured full charge current
with indicated PROG resistor.
Note 7: FBx above regulation such that regulator is in sleep. Specification
does not include resistive divider current reflected back to VINX.
Note 8: Guaranteed by design.
358623f
6