MAX1775 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
比赛名单
MAX1775 Datasheet PDF : 15 Pages
| |||
Dual-Output Step-Down
DC-DC Converter for PDA/Palmtop Computers
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +12V, VMAIN = VINC = VCS- = VCS+ = +3.3V, VCORE = +1.8V, Circuit of Figure 4, TA -40°C to +85°C, unless otherwise noted.)
(Note 2)
PARAMETER
LOGIC INPUTS
SHDNM, SHDNC Input Low
Voltage
SHDNM, SHDNC Input High
Voltage
SHDNM, SHDNC Input Low
Current
SHDNC Input High Current
SHDNM Input High Current
SYMBOL
CONDITIONS
SHDNM = SHDNC = GND
V SHDNC = +5.5V
V SHDNM = +28V
MIN
MAX UNITS
0.4
V
2.0
V
-1
1
µA
5
µA
30
µA
Note 1: This parameter is guaranteed based on the LXC P-channel current limit and the LXC N-channel valley current.
Note 2: Specifications to -40°C are guaranteed by design and not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, VMAIN = +3.3V, VCORE = +1.8V, TA = +25°C, unless otherwise noted.)
MAIN OUTPUT EFFICIENCY vs. LOAD
100
VIN = +3.3V
90
80
70
VIN = +12V VIN = +15V VIN = +18V
60
VIN = +5V
50
40
30
20
10
0
1
10
100
1000 10,000
LOAD (mA)
CORE OUTPUT EFFICIENCY vs. LOAD
100
VINC = +2.7V
90
80
70
60
VINC = +3.3V
VINC = +5V
50
40
30
20
10
0
1
10
100
1000
LOAD (mA)
VREF ACCURACY vs. TEMPERATURE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-40 -15 10
35
60
85
TEMPERATURE (°C)
6 _______________________________________________________________________________________
Share Link: 