MAX16975 查看數據表（PDF） - Maxim Integrated
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MAX16975 Datasheet PDF : 17 Pages
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MAX16975
28V, 1.2A Automotive Step-Down Converter
with Low Operating Current
ELECTRICAL CHARACTERISTICS* (continued)
(VSUP = VSUPSW = 14V, VEN = 14V, L1 = 22FH, CIN = 4.7FF, COUT = 100FF, CBIAS = 1FF, CBST = 0.1FF, CCRES = 1nF, RFOSC =
61.9kI, TA = TJ = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Enable On Threshold Voltage High
Enable Threshold Voltage
Hysteresis
VEN_HI
VEN,HYS
2.2
V
0.2
V
Enable Input Current
IEN
RESET
10
nA
Reset Internal Switching Level
RESETI Threshold Voltage
CRES Threshold Voltage
CRES Threshold Hysteresis
RESETI Input Current
CRES Source Current
CRES Pulldown Current
RES Output Low Voltage
RES Leakage Current (Open-
Drain Output)
Reset Debounce Time
VTH_RISING VFB rising, VRESETI = 0V
VTH_FALLING VFB falling, VRESETI = 0V
VRESETI_HI VRESETI falling
VCRES_HI VCRES rising
VCRES_HYS
IRESET VRESETI = 0V
ICRES VOUT in regulation
ICRES_PD VOUT out of regulation
ISINK = 5mA
VOUT in regulation
TA = +25°C
TA = +125°C
tRES_DEB VRESETI falling
93
95 96.5
91
93
95
%VFB
1.05 1.25 1.4
V
1.07 1.13 1.19
V
0.05
V
0.02
FA
9.5
10 10.5
FA
1
mA
0.4
V
1
FA
20
nA
25
Fs
Note 2: When 3V < VOUT < 5.5V, the bias regulator is connected to the output to save quiescent current, VBIAS = VOUT.
Note 3: Guaranteed by design; not production tested.
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*The parametric values (min, typ, max limits) shown in the Electrical Characteristics table supersede values quoted elsewhere in this data sheet.
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