MAX16920(2011) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX16920
(Rev.:2011)
(Rev.:2011)
Maxim Integrated
MAX16920 Datasheet PDF : 20 Pages
| |||
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
SYMBOL
VIL
CONDITIONS
MIN
TYP MAX UNITS
0.4
V
EN2, EN3, ENA, SYNC Input High
Voltage
VIH
1.7
V
EN2, EN3, ENA, SYNC Input
Hysteresis
SYNC Input Pulldown Resistor
VH
RSYNC
200
mV
100
200
360
kI
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)
5
Share Link: 