LTM4620AMPY 데이터 시트보기 (PDF) - Linear Technology
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LTM4620AMPY Datasheet PDF : 40 Pages
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LTM4620A
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal
operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), VIN = 12V and VRUN1, VRUN2 at 5V
unless otherwise noted. Per the typical application in Figure 26.
SYMBOL
GBW
VTEMP
TC
PARAMETER
Gain Bandwidth Product
Diode Connected PNP
Temperature Coefficient
CONDITIONS
I = 100µA
MIN
l
TYP
3
0.598
2.0
MAX UNITS
MHz
V
mV/C
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 LTM4620A is tested under pulsed load conditions such that
TJ ≈ TA. The LTM4620AE is guaranteed to meet specifications from
0°C to 125°C internal temperature. Specifications over the –40°C to
125°C internal operating temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTM4620AI is guaranteed over the full –40°C to 125°C internal operating
temperature range. The LTM4620AMP is tested and guaranteed over
the –55°C to 125°C operating temperature range. For output current
derating at high temperature, please refer to thermal conditions and output
current derating discussion. 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: Two outputs are tested separately and the same testing condition
is applied to each output.
Note 4: The switching frequency is programmable from 400kHz to 750kHz.
Note 5: The LTM4620A is designed to operate from 400kHz to 750kHz
Note 6: These parameters are tested at wafer sort.
Note 7: See output current derating curves for different VIN, VOUT and TA.
Note 8: Output current limitations. For 10V ≤ VIN ≤ 16V, the 5V output
current needs to be limited to 12A/channel, switching frequency = 750kHz.
Derating curves apply. For 7V ≤ VIN ≤ 9V, the 5V output current needs
to be limited to 13A/channel, switching frequency = 750kHz. Derating
curves apply. All other input and output combinations are 13A/channel
with recommended switching frequency included in the efficiency graphs.
Derating curves apply.
For more information www.linear.com/LTM4620A
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