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MAX77597 датащи(PDF) 4 Page - Maxim Integrated Products

номер детали MAX77597
подробное описание детали  36V, 300mA, Buck Converter with 1.1μA IQ
PDF  15 Pages
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производитель  MAXIM [Maxim Integrated Products]
домашняя страница  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX77597 датащи(HTML) 4 Page - Maxim Integrated Products

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(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
VSUP
3.5
36
V
Supply Voltage
VSUP
t < 500ms (Note 2)
42
V
Supply Current
ISUP
Shutdown (VEN = 0V)
0.75
3.0
µA
No load, fixed 3.3V VOUT
1.1
3.0
VMODE = VBIAS , no load, FPWM,
no switching
0.5
1
1.5
mA
UV Lockout
VUVLO
VBIAS rising
3.0
3.2
3.4
V
Hysteresis
0.4
BIAS Regulator Voltage
VBIAS
VSUP = 5.5V to 36V
5
V
BIAS Current Limit
10
mA
BUCK CONVERTER
Voltage Accuracy
VOUT,3.3V
VOUT = 3.3V, 6V ≤ VSUP ≤ 36V,
ILOAD = 0 to 300mA
3.1
3.3
3.4
V
High-Side DMOS RDSON
RON,HS
VBIAS = 5V, ILX = 200mA
1000
2200
mΩ
Low-Side DMOS RDSON
RON,LS
VBIAS = 5V, ILX = 200mA
500
1200
mΩ
DMOS High-Side Current-Limit
Threshold
IMAX
425
500
575
mA
DMOS High-Side Skip-Mode
Peak-Current Threshold
ISKIP
70
100
130
mA
DMOS Low-Side Zero-Crossing
Threshold
IZX
40
mA
DMOS Low-Side Negative
Current-Limit Threshold
INEG
FPWM mode
-320
mA
Soft-Start Ramp Time
tSS
6.67
ms
LX Rise Time
tRISE,LX
(Note 2)
6
ns
Minimum On-Time
tON_MIN
34
ns
Maximum Duty Cycle
DCMAX
98
%
PWM Switching Frequency
fSW
1.58
1.7
1.82
MHz
RESET OUTPUT (RESET)
RESET Threshold
VTHR_RES VOUT rising
88
92
96
%VOUT
VTHF_RES VOUT falling
86
90
94
RESET Debounce
tDEB
12
µs
RESET High Leakage Current
ILEAK,RES TA = +25°C
1
µA
RESET Low Level
VOUT,RES Sinking 1mA
0.4
V
MAX77597
36V, 300mA, Buck Converter with 1.1µA IQ
www.maximintegrated.com
Maxim Integrated │ 4
Electrical Characteristics



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