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MAX1644EAE中文资料PDF规格书
MAX1644EAE规格书详情
General Description
The MAX1644 constant-off-time, PWM step-down DC-DC converter is ideal for use in applications such as PC cards, CPU daughter cards, and desktop computer bus-termination boards. The device features internal synchronous rectification for high efficiency and reduced component count. It requires no external Schottky diode. The internal 0.10Ω PMOS power switch and 0.10Ω NMOS synchronous-rectifier switch easily deliver continuous load currents up to 2A. The MAX1644 produces a preset +3.3V or +2.5V output voltage or an adjustable output from +1.1V to VIN. It achieves efficiencies as high as 95.
Features
♦ ±1 Output Accuracy
♦ 95 Efficiency
♦ Internal PMOS and NMOS Switches
70mΩ On-Resistance at VIN = +4.5V
100mΩ On-Resistance at VIN = +3V
♦ Output Voltage
+3.3V or +2.5V Pin-Selectable
+1.1V to VIN Adjustable
♦ +3V to +5.5V Input Voltage Range
♦ 360µA (max) Operating Supply Current
♦ < 1µA Shutdown Supply Current
♦ Programmable Constant-Off-Time Operation
♦ 350kHz (max) Switching Frequency
♦ Idle Mode Operation at Light Loads
♦ Thermal Shutdown
♦ Adjustable Soft-Start Inrush Current Limiting
♦ 100 Duty Cycle During Low-Dropout Operation
♦ Output Short-Circuit Protection
♦ 16-Pin SSOP Package
Applications
+5V to +3.3V/+2.5V Conversion
CPU I/O Supply
+3.3V PC Card and CardBus Applications
Notebook and Subnotebook Computers
Desktop Bus-Termination Boards
CPU Daughter Card Supply
产品属性
- 产品编号:
MAX1644EAE
- 制造商:
Analog Devices Inc./Maxim Integrated
- 类别:
集成电路(IC) > 稳压器 - DC-DC 开关稳压器
- 包装:
卷带(TR)
- 功能:
降压
- 输出配置:
正
- 拓扑:
降压
- 输出类型:
可调节(可编程)
- 输出数:
1
- 电压 - 输入(最小值):
3V
- 电压 - 输入(最大值):
5.5V
- 电压 - 输出(最小值/固定):
1.1V(2.525V,3.33V)
- 电压 - 输出(最大值):
5.5V
- 电流 - 输出:
2A
- 频率 - 开关:
最高 350kHz
- 同步整流器:
是
- 工作温度:
-40°C ~ 85°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
16-SSOP(0.209",5.30mm 宽)
- 供应商器件封装:
16-SSOP
- 描述:
IC REG BUCK ADJ/PROG 2A 16SSOP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
22+ |
SSOP16 |
10000 |
原装正品优势现货供应 |
询价 | ||
MAXIM/美信 |
22+ |
SSOP-16 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
2322+ |
NA |
33220 |
无敌价格 主销品牌 正规渠道订货 免费送样!!! |
询价 | |||
MAX |
16+ |
SSOP16 |
10000 |
进口原装现货/价格优势! |
询价 | ||
MAXIM |
1645+ |
SSOP |
7500 |
只做原装进口,假一罚十 |
询价 | ||
MAXIM |
22+ |
SSOP16 |
5000 |
原装现货库存.价格优势!! |
询价 | ||
MAXIM/美信 |
22+ |
SSOP-16 |
3000 |
原装正品,支持实单 |
询价 | ||
Maxim(美信) |
22+ |
标准封装 |
6000 |
公司只有原装 |
询价 | ||
Maxim(美信) |
2021/2022+ |
标准封装 |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
MAXIM |
2023+ |
SSOP |
53500 |
正品,原装现货 |
询价 |