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LTM4607 数据表(PDF) 9 Page - Linear Technology

部件名 LTM4607
功能描述  High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
PDF  28 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTM4607 数据表(HTML) 9 Page - Linear Technology

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LTC3780
9
3780fe
PIN FUNCTIONS
Load Step
Load Step
Load Step
Line Transient
Line Transient
TYPICAL PERFORMANCE CHARACTERISTICS
VOUT
500mV/DIV
200μs/DIV
VIN = 18V
VOUT = 12V
LOAD STEP: 0A TO 5A
CONTINUOUS MODE
3780 G27
IL
5A/DIV
VOUT
500mV/DIV
200μs/DIV
VIN = 12V
VOUT = 12V
LOAD STEP: 0A TO 5A
CONTINUOUS MODE
3780 G28
IL
5A/DIV
VOUT
500mV/DIV
200μs/DIV
VIN = 6V
VOUT = 12V
LOAD STEP: 0A TO 5A
CONTINUOUS MODE
3780 G29
IL
5A/DIV
VOUT
500mV/DIV
VIN
10V/DIV
500μs/DIV
VOUT = 12V
ILOAD = 1A
VIN STEP: 7V TO 20V
CONTINUOUS MODE
3780 G30
IL
1A/DIV
VOUT
500mV/DIV
VIN
10V/DIV
500μs/DIV
VOUT = 12V
ILOAD = 1A
VIN STEP: 20V TO 7V
CONTINUOUS MODE
3780 G31
IL
1A/DIV
(SSOP/QFN)
PGOOD (Pin 1/Pin 30): Open-Drain Logic Output. PGOOD
is pulled to ground when the output voltage is not within
±7.5% of the regulation point.
SS (Pin 2/Pin 31): Soft-start reduces the input power
sources’ surge currents by gradually increasing the
controller’s current limit. A minimum value of 6.8nF is
recommended on this pin.
SENSE+ (Pin 3/Pin 1):
The (+) Input to the Current Sense
and Reverse Current Detect Comparators. The ITH pin
voltage and built-in offsets between SENSE– and SENSE+
pins, in conjunction with RSENSE, set the current trip
threshold.
SENSE– (Pin 4/Pin 2):
The (–) Input to the Current Sense
and Reverse Current Detect Comparators.
ITH (Pin 5/Pin 3): Current Control Threshold and Error
Amplifier Compensation Point. The current comparator
threshold increases with this control voltage. The voltage
ranges from 0V to 2.4V.
TA = 25°C, unless otherwise noted.



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