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參數(shù)資料
| 型號： | MAX1745 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Voltage, Step-Down DC-DC Controller in レMAX |
| 中文描述： | 高壓、降壓型DC-DC控制器，µMAX封裝 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 256K |
| 代理商： | MAX1745 |
M
High-Voltage, Step-Down DC-DC
Controller in μMAX
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(VIN=
SHDN
= 5.5V to 36V, 3/5 = GND, ILOAD = 0,
TA= -40
°
C to +125
°
C
, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
4.5
MAX
36
140
15
5.15
3.40
44
1.28
50
-4.3V
5.5
4.1
115
150
25
0
UNITS
V
μA
μA
Input Voltage Range
Supply Current into IN
Shutdown Supply Current
SHDN
= V
IN
= 5.5V to 36V
SHDN
= GND
3/5 = VL
3/5 = GND
3/5 = VL, V
OUT
= 5V
Falling edge, hysteresis = 8mV
4.85
3.20
Output Voltage (MAX1744)
V
OUT Input Current (MAX1744)
FB Threshold Voltage (MAX1745)
FB Input Current (MAX1745)
VH Output Voltage with Respect to IN
VL Output Voltage
VL Undervoltage Lockout
μA
V
nA
V
V
V
1.22
-50
-6.0V
4.5
1.6
85
80
0
-25
2.4
V
IN
= 5.5V to 36V, I
VH
= 100μA to 20mA
V
IN
= 5.5V to 36V, I
VL
= 100μA to 2mA
V
CS
= V
OUT
= 2.5V to 18V
V
CS
= V
OUT
= GND
V
CS
= V
OUT
= 2.5V to 18V
V
CS
= V
OUT
= GND
V
IN
= 4.5V to 36V
V
IN
= 4.5V to 36V
SHDN
= GND
3/5 = GND
SHDN
= 36V
CS Threshold Voltage
mV
CS Input Current
μA
SHDN
, 3/5 Logic-High Threshold
SHDN
, 3/5 Logic-Low Threshold
3/5 Input Current
V
V
μA
0.4
±
1
±
1
12
20
2.5
1.5
1.28
10
80
SHDN
Input Current
μA
EXT Resistance
Minimum EXT Off-Time
Minimum EXT On-Time
Reference Voltage
REF Load Regulation
REF Line Regulation
μs
μs
V
mV
μV/V
1.5
0.7
1.22
I
REF
= 0
0
≤
I
REF
≤
100μA
V
IN
= 4.5V to 36V, I
REF
= 0
Note 1:
Specifications to -40°C are guaranteed by design, not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1745AUB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1745AUB+ | 功能描述:DC/DC 開關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1745AUB+T | 功能描述:DC/DC 開關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1745AUB-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1745EUB | 功能描述:DC/DC 開關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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