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参数资料
| 型号： | MAX1744EUB+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 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 |
| 封装： | MICRO MAX PACKAGE-10 |
| 文件页数： | 7/14页 |
| 文件大小： | 256K |
| 代理商： | MAX1744EUB+T |
MAX1744/MAX1745
High-Voltage, Step-Down DC-DC
Controller in MAX
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = SHDN = 5.5V to 36V, 3/5 = GND, ILOAD = 0, TA = 0°C to +85°C, unless otherwise noted. Typical values at VIN = SHDN =
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 MAX (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
SHDN = VIN = 5.5V to 36V
90
140
A
Shutdown Supply Current
SHDN = GND
4
12
A
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
A
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 = 100A to 20mA
-6.0
-5.3
-4.3
V
VL Output Voltage
VIN = 5.5V to 36V, IVL = 100A 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 = GND
80
110
150
mV
VCS = VOUT = 2.5V to 18V
0
15
25
CS Input Current
VCS = VOUT = GND
-25
0
A
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
±1A
3/5 = GND
±1
SHDN Input Current
SHDN = 36V
12
A
EXT Resistance
820
Minimum EXT Off-Time
1.5
2.0
2.5
s
Minimum EXT On-Time
0.7
1.0
1.5
s
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 ≤ 100A
4
10
mV
REF Line Regulation
VIN = 4.5V to 36V, IREF = 0
30
60
V/V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1744EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX1744 MAX1745 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1745AUB | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1745AUB+ | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1745AUB+T | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1745AUB-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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