MAX8564A 查看數據表（PDF） - Maxim Integrated
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MAX8564A Datasheet PDF : 15 Pages
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±1%, Ultra-Low Output Voltage, Dual and Triple
Linear n-FET Controllers
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VEN1 = VEN2 = VEN3 = 5V, VGND = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
POK_ Threshold Falling
POK_ Threshold Rising at Startup
CONDITIONS
Measured at FB_ (falling)
Measured at FB_ (rising)
MIN TYP MAX UNITS
425
440
455
mV
455
470
485
mV
POK_ Output Low Level
POK_ Output High Leakage
Sinking 1mA, VDD = 4.5V, VFB_ = 0.4V
VDD = 5.5V
TA = +25°C
TA = +85°C
0.1
V
0.1
µA
0.001
Note 1: Specifications are production tested at TA = +25°C. Maximum and minimum specifications over temperature are guaranteed by
design.
(Circuit of Figure 1, TA = +25°C.)
Typical Operating Characteristics
OUTPUT VOLTAGE vs. INPUT VOLTAGE
1.6
VDD = 5V
1.5
VOUT1
1.4
1.3
1.2
1.1
VOUT2
1.0
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
INPUT VOLTAGE (V)
0.5000
0.4998
FEEDBACK VOLTAGE
vs. TEMPERATURE
VDD = 5V
0.4996
0.4994
VDD = 12V
0.4992
0.4990
0.4988
0.4986
-40 -15
10
35
60
85
TEMPERATURE (°C)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
2.6
VDD = 12V
2.4
VOUT3
2.2
2.0
1.8
1.6
VOUT1
1.4
1.2
VOUT2
1.0
1.0 1.4 1.8 2.2 2.6 3.0 3.4
INPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. OUTPUT CURRENT
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0
VOUT3
VDD = 12V
VOUT1
VOUT2
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
100
90
80
70
60
50
40
30
20
10
0
100
PSRR vs. FREQUENCY
VOUT1 = 1.5V
VIN1 = 2V
LOAD = 1.25Ω
VDD = 12V
IOUT2
VOUT2
LOAD TRANSIENT
MAX8563 toc06
2A/div
0
20mV/div
AC-COUPLED
VIN2
200mV/div
AC-COUPLED
1k
10k
FREQUENCY (Hz)
VDRV2 VDD = 12V
FIGURE 1, C7 = 100μF 6TPE100MI
100k
10μs/div
2V/div
0
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