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MAX15053 データシート(PDF) 3 Page - Maxim Integrated Products

部品番号 MAX15053
部品情報  High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator
PDF  21 Pages
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メーカー  MAXIM [Maxim Integrated Products]
ホームページ  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX15053 データシート(HTML) 3 Page - Maxim Integrated Products

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High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 5V, TA = -40NC to +85NC, unless otherwise noted, typical values are at TA = +25NC.) (Note 4)
Note 4: Specifications are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
design and characterization.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Low-Side Switch Source Current-
Limit Threshold
4
A
LX Leakage Current
VEN = 0V
10
F
A
RMS LX Output Current
2
A
OSCILLATOR
Switching Frequency
fSW
850
1000
1150
kHz
Maximum Duty Cycle
DMAX
94
95.8
%
Minimum Controllable On-Time
70
ns
Slope Compensation Ramp
Valley
1.15
V
Slope Compensation Ramp
Amplitude
VSLOPE
Extrapolated to 100% duty cycle
320
mV
ENABLE
EN Input High Threshold Voltage
VEN rising
1.45
V
EN Input Low Threshold Voltage
VEN falling
0.4
V
EN Input Leakage Current
VEN = 5V
0.025
F
A
SKIP Input Leakage Current
VSKIP = VEN = 5V
25
F
A
SOFT-START, PREBIAS, REFIN
Soft-Start Current
ISS
VSS/REFIN = 0.45V, sourcing
10
F
A
SS/REFIN Discharge Resistance
RSS
ISS/REFIN = 10mA, sinking
8.3
I
SS/REFIN Prebias Mode Stop
Voltage
VSS/REFIN rising
0.58
V
External Reference Input Range
0
VIN -
1.8
V
HICCUP
Number of Consecutive Current-
Limit Events to Hiccup
8
Events
Timeout
1024
Clock
Cycles
POWER-GOOD OUTPUT
PGOOD Threshold
VFB rising
0.535
0.555
0.575
V
PGOOD Threshold Hysteresis
VFB falling
28
mV
PGOOD VOL
IPGOOD = 5mA, VFB = 0.5V
20
60
mV
PGOOD Leakage
VPGOOD = 5V, VFB = 0.65V
0.013
F
A
THERMAL SHUTDOWN
Thermal Shutdown Threshold
150
N
C
Thermal Shutdown Hysteresis
Temperature falling
20
N
C



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