MAX16920AATJ/V Просмотр технического описания (PDF) - Maxim Integrated
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MAX16920AATJ/V
Maxim Integrated
MAX16920AATJ/V Datasheet PDF : 20 Pages
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MAX16920
Automotive Power-Management IC with
Three Step-Down Converters and Linear Regulator
Electrical Characteristics (continued)
(VINA = VINB = 14V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
EN2, EN3, ENA, SYNC Input Low
Voltage
EN2, EN3, ENA, SYNC Input High
Voltage
EN2, EN3, ENA, SYNC Input
Hysteresis
SYNC Input Pulldown Resistor
SYMBOL
VIL
VIH
VH
RSYNC
CONDITIONS
MIN
TYP MAX UNITS
0.4
V
1.7
V
200
mV
100
200
360
kΩ
Note 2: Operation at voltages outside the 5.5V to 18V range is guaranteed, but some parameters may be out of specification.
Note 3: Not production tested.
Note 4: The MAX16920BATJ/V+ with spread-spectrum disabled has a typical switching frequency of 2.2MHz, while the
MAX16920BATJS/V+ is centered at 2.025MHz typically.
Typical Operating Characteristics
(VINA = VINB = 14V, TA = +25°C, unless otherwise noted. Data measured on MAX16920B, see Figure 5 for application circuit.)
2V/div
DC-DC1 SKIP MODE OPERATION
(IOUT1 = 100mA)
MAX16920 toc01
VOUT1
0V
10V/div
0V
100mA/div
0A
VLX1
IOUT1
MAX16920A
1µs/div
200mA/div
DC-DC1 LOAD REGULATION
(15mA TO 150mA TO 15mA)
MAX16920 toc04
IOUT1
50mV/div
VOUT1
(AC-COUPLED)
200ms/div
DC-DC1 OUTPUT VOLTAGE
vs. TEMPERATURE
3.50
IOUT1 = 100mA
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
DC-DC2 OUTPUT VOLTAGE
vs. TEMPERATURE
5.20
IOUT2 = 400mA
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
4
DC-DC1 LINE REGULATION
IOUT1 = 150mA
8 12 16 20 24 28
VIN_ (V)
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
4
DC-DC2 LINE REGULATION
IOUT2 = 400mA
8 12 16 20 24 28
VIN_ (V)
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