參數(shù)資料
型號(hào)： LTC3589HUJ-1#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 2600 kHz SWITCHING FREQ-MAX, PQCC40
封裝： 6 X 6 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-40
文件頁數(shù)： 45/46頁
文件大小： 570K
代理商： LTC3589HUJ-1#PBF
LTC3589/LTC3589-1
8
3589fc
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 LTC3589/LTC3589-1 are tested under pulsed load conditions
such that TJ ≈ TA. The LTC3589E/LTC3589E-1 are guaranteed to meet
specifications from 0°C to 85°C junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LTC3589I/LTC3589I-1 are guaranteed over the –40°C to 125°C
operating junction temperature range and the LTC3589H/LTC3589H-1 are
guaranteed over the full –40°C to 150°C operating junction temperature
range. High junction temperatures degrade operating lifetimes; operating
lifetime is derated for junction temperatures greater than 125°C. The
junction temperature (TJ in °C) is calculated from the ambient temperature
(TA in °C) and power dissipation (PD, in Watts) according to the formula:
TJ = TA + (PD θJA), where the package junction to ambient thermal
impedance
θJA = 33°C/W.
Note that the maximum ambient temperature consistent with these
specifications is determined by specific operating conditions in
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
Note 3: The LTC3589/LTC3589-1 include overtemperature protection that
is intended to protect the device during momentary overload conditions.
Junction temperature will exceed 150°C when overtemperature protection
is active. Continuous operation above the specified maximum operating
temperature may impair device reliability.
Note 4: Dropout voltage is defined as (VIN – VLDO) for LDO1 or
(VIN_LDO – VLDO) for other LDOs when VLDO is 3% lower than VLDO
measured with VIN = VIN_LDO = 4.3V.
Note 5: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 6: Soft-start measured in test mode with regulator error amplifier in
unity gain mode.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VRSTO
RSTO Output Low Voltage
IRSTO = 3mA
0.1
0.4
V
IRSTO
RSTO Output High Leakage Current
VRSTO = 3.8V
–0.1
0.1
μA
VIRQ
IRQ Output Low Voltage
IIRQ = 3mA
0.1
0.4
V
IIRQ
IRQ Output High Leakage Current
VIRQ = 3.8V
–0.1
0.1
μA
The
l denotes the specifications which apply over the full operating junction
temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = PVIN1 = PVIN2 = PVIN3 = PVIN4 = VIN_LDO2 = VIN_LDO34
= DVDD = 3.8V. All regulators disabled unless otherwise noted.
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