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参数资料
| 型号： | MAX1745AUB+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 100% |
| 电源电压： | 4.5 V ~ 36 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
High-Voltage, Step-Down DC-DC
Controllers in μMAX
ABSOLUTE MAXIMUM RATINGS
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
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
Continuous Power Dissipation (T A = +70°C)
10-Pin μMAX (derate 5.6mW/°C above 70°C) .............444mW
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.
ELECTRICAL CHARACTERISTICS
(VIN = V SHDN = 5.5V to 36V, 3/5 = GND, ILOAD = 0, TA = 0°C to +85°C , unless otherwise noted. Typical values at VIN = V SHDN =
36V, TA = +25°C.)
PARAMETER
Input Voltage Range
Supply Current into IN
Shutdown Supply Current
Output Voltage (MAX1744)
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
CS Threshold Voltage
CS Input Current
CONDITIONS
V 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
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 = V GND
V CS = V OUT = 2.5V to 18V
V CS = V OUT = V GND
MIN
4.5
4.85
3.20
1.22
-50
-6.0
4.5
2.0
85
80
0
-25
TYP
90
4
5.00
3.30
28
1.25
-5.3
5.0
3.0
100
110
15
MAX
36
140
12
5.15
3.40
44
1.28
50
-4.3
5.5
4.1
115
150
25
0
UNITS
V
μA
μA
V
μA
V
nA
V
V
V
mV
μA
SHDN , 3/5 Logic-High Threshold
SHDN , 3/5 Logic-Low Threshold
3/5 Input Current
SHDN Input Current
V IN = 4.5V to 36V
V IN = 4.5V to 36V
SHDN = GND
3/5 = GND
V SHDN = 36V
2.4
0.4
± 1
± 1
12
V
V
μA
μA
EXT Resistance
8
20
Ω
Minimum EXT Off-Time
Minimum EXT On-Time
Output Line Regulation
Output Load Regulation
Figure 1, 5.5V < V IN < 36V, I LOAD = 1A
Figure 1, V IN = 12V, 30mA < I LOAD < 2A
1.5
0.7
2.0
1.0
5
15
2.5
1.5
μs
μs
mV/V
mV/A
Reference Voltage
REF Load Regulation
REF Line Regulation
I REF = 0
0 ≤ I REF ≤ 100μA
V IN = 4.5V to 36V, I REF = 0
1.22
1.25
4
30
1.28
10
60
V
mV
μV/V
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX1745EUB | 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 |
| MAX1745EUB | 制造商:Maxim Integrated Products 功能描述:HI VOLT STEP DOWN DC-DC SMD 1745 |
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