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MAX17543 데이터시트(PDF) 4 Page - Maxim Integrated Products

부품명 MAX17543
상세설명  4.5V??2V, 2.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
PDF  19 Pages
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제조업체  MAXIM [Maxim Integrated Products]
홈페이지  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17543 데이터시트(HTML) 4 Page - Maxim Integrated Products

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(VIN = VEN/UVLO = 24V, RRT = 40.2kΩ (500kHz), CVCC = 2.2μF, VPGND = VSGND = VMODE = VSYNC = 0V, LX = SS = RESET =
open, VBST to VLX = 5V, VFB = 1V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are
referenced to SGND, unless otherwise noted.) (Note 2)
Note 2: All limits are 100% tested at +25ºC. Limits over temperature are guaranteed by design.
Note 3: See the Overcurrent Protection/Hiccup Mode section for more details.
Electrical Characteristics (continued)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Hiccup Timeout
(Note 3)
32,768
Cycles
Minimum On-Time
tON-MIN
135
ns
Minimum Off-Time
tOFF-MIN
140
160
ns
LX Dead Time
5
ns
RESET
RESET
Output Level Low
IRESET = 10mA
0.4
V
RESET
Output Leakage Current
TA = TJ = +25ºC, VRESET = 5.5V
-0.1
+0.1
µA
FB Threshold for RESET Assertion
VFB-OKF
VFB falling
90.5
92
94.6 %VFB-
REG
FB Threshold for RESET
Deassertion
VFB-OKR
VFB rising
93.8
95
97.8 %VFB-
REG
RESET
Deassertion Delay After FB
Reaches 95% Regulation
1024
Cycles
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Temperature rising
165
ºC
Thermal Shutdown Hysteresis
10
ºC
MAX17543
4.5V–42V, 2.5A, High-Efficiency,
Synchronous Step-Down DC-DC Converter
with Internal Compensation
www.maximintegrated.com
Maxim Integrated │ 4



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