MAX16956(2014) 查看數據表（PDF） - Maxim Integrated
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MAX16956 Datasheet PDF : 16 Pages
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MAX16956
36V, 300mA, Mini Buck Converter with
1.1µA IQ
Electrical Characteristics (continued)
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless
otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
FB Line Regulation
High-Side DMOS RDSON
Low-Side DMOS RDSON
DMOS High-Side Current-Limit
Threshold
ΔVLINE
RON,HS
RON,LS
IMAX
6V ≤ VSUP ≤ 36V
VBIAS = 5V, ILX = 200mA
VBIAS = 5V, ILX = 200mA
0.425
0.02
1000
500
0.5
2200
1200
0.575
%/V
mΩ
mΩ
A
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
-0.320
A
Soft-Start Ramp Time
LX Rise Time
Minimum On-Time
Maximum Duty Cycle
PWM Switching Frequency
Spread-Spectrum Range
tSS
tRISE,LX
tON_MIN
DCMAX
fSW
SS
(Note 3)
Spread-spectrum option only
5.4
ms
6
ns
60
ns
97
%
1.95
2.1
2.25
MHz
±6
%
RESET OUTPUT (RESET)
RESET Threshold
VTHR_RES VOUT rising
VTHF_RES VOUT falling
90
92
94
88
90
92
%VOUT
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
LOGIC LEVELS
EN Input High Threshold
EN Input Low Threshold
EN Input Current
MODE Input High Threshold
MODE Input Low Threshold
MODE Internal Pulldown
THERMAL PROTECTION
VIH,EN
VIL,EN
IIN,EN
VIH,MODE
VIL,MODE
RPD,MODE
2.4
V
0.4
V
0.1
µA
1.4
V
0.4
V
1000
kΩ
Thermal Shutdown
TSHDN (Note 3)
+175
°C
Thermal-Shutdown Hysteresis TSHDN,HYS (Note 3)
+15
°C
Note 2: Limits are 100% tested at TA = +25°C (and/or TA = +125°C). Limits over the operating temperature range and relevant
supply voltage range are guaranteed by design and characterization.
Note 3: Guaranteed by design; not production tested.
Note 4: When the typical minimum on-time of 80ns is violated, the device skips pulses.
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