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參數(shù)資料
| 型號(hào)： | MAX1744EUB+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High-Voltage, Step-Down DC-DC Controller in µMAX |
| 中文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | ROHS COMPLIANT, M0-187BA, UMAX-10 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 299K |
| 代理商： | MAX1744EUB+ |
MAX1744/MAX1745
High-Voltage, Step-Down DC-DC
Controllers in MAX
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = VSHDN = 5.5V to 36V, 3/5 = GND, ILOAD = 0, TA = 0°C to +85°C, unless otherwise noted. Typical values at VIN = VSHDN =
36V, TA = +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN, EXT, SHDN to GND...........................................-0.3V to +38V
VH to GND..............................................................-0.3V to +34V
VH, EXT to IN............................................................-7V to +0.3V
CS, OUT to GND ....................................................-0.3V to +20V
FB, 3/5, REF to GND .....................................-0.3V to (VL + 0.3V)
VL to GND...................................................................-0.3V to 6V
Continuous Power Dissipation (TA = +70°C)
10-Pin μMAX (derate 5.6mW/°C above 70°C) .............444mW
Operating Temperature Range
MAX174_EUB ..................................................-40°C to +85°C
MAX174_AUB ................................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
4.5
36
V
Supply Current into IN
VSHDN = VIN = 5.5V to 36V
90
140
μA
Shutdown Supply Current
SHDN = GND
4
12
μA
3/5 = VL
4.85
5.00
5.15
Output Voltage (MAX1744)
3/5 = GND
3.20
3.30
3.40
V
OUT Input Current (MAX1744)
3/5 = VL, VOUT = 5V
28
44
μA
FB Threshold Voltage (MAX1745)
Falling edge, hysteresis = 8mV
1.22
1.25
1.28
V
FB Input Current (MAX1745)
-50
50
nA
VH Output Voltage with Respect to IN
VIN = 5.5V to 36V, IVH = 100μA to 20mA
-6.0
-5.3
-4.3
V
VL Output Voltage
VIN = 5.5V to 36V, IVL = 100μA to 2mA
4.5
5.0
5.5
V
VL Undervoltage Lockout
2.0
3.0
4.1
V
VCS = VOUT = 2.5V to 18V
85
100
115
CS Threshold Voltage
VCS = VOUT = VGND
80
110
150
mV
VCS = VOUT = 2.5V to 18V
0
15
25
CS Input Current
VCS = VOUT = VGND
-25
0
μA
SHDN, 3/5 Logic-High Threshold
VIN = 4.5V to 36V
2.4
V
SHDN, 3/5 Logic-Low Threshold
VIN = 4.5V to 36V
0.4
V
3/5 Input Current
SHDN = GND
±1μA
3/5 = GND
±1
SHDN Input Current
VSHDN = 36V
12
μA
EXT Resistance
820
Ω
Minimum EXT Off-Time
1.5
2.0
2.5
μs
Minimum EXT On-Time
0.7
1.0
1.5
μs
Output Line Regulation
Figure 1, 5.5V < VIN < 36V, ILOAD = 1A
5
mV/V
Output Load Regulation
Figure 1, VIN = 12V, 30mA < ILOAD < 2A
15
mV/A
Reference Voltage
IREF = 0
1.22
1.25
1.28
V
REF Load Regulation
0
≤ IREF ≤ 100μA
4
10
mV
REF Line Regulation
VIN = 4.5V to 36V, IREF = 0
30
60
μV/V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1744EUB/V+ | 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 |
| MAX1744EUB/V+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 |
| MAX1744EUB+ | 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 |
| MAX1744EUB+ | 制造商:Maxim Integrated Products 功能描述:CONTROLLER STEP DOWN DC-DC 1744 制造商:Maxim Integrated Products 功能描述:CONTROLLER, STEP DOWN, DC-DC, 1744 |
| MAX1744EUB+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 |
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