MAX8745A中文资料PDF规格书
MAX8745A规格书详情
General Description
The MAX8744A/MAX8745A are dual step-down, switch mode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input rip ple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 180° out-of-phase regulators where the duty-cycle overlap occurs when the input drops below 10V.
Features
♦ Fixed-Frequency, Current-Mode Control
♦ 40/60 Optimal Interleaving
♦ Internal BST Switches
♦ Internal 5V, 100mA Linear Regulator
♦ Auxiliary Linear-Regulator Driver (12V or Adjustable Down to 1V)
♦ Dual Mode™ Feedback—3.3V/5V Fixed or Adjustable Output Voltages
♦ 200kHz/300kHz/500kHz Switching Frequency
♦ Undervoltage and Thermal-Fault Protection
♦ Overvoltage-Fault Protection (MAX8744A Only)
♦ 6V to 26V Input Range
♦ 2V ±0.75 Reference Output
♦ Independent Enable Inputs and Power-Good Outputs
♦ Soft-Start and Soft-Shutdown (Voltage Ramp)
♦ 8μA (typ) Shutdown Current
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
HITACHI |
23+ |
QFP |
12000 |
全新原装假一赔十 |
询价 | ||
MAXIM/美信 |
23+ |
NA/ |
2822 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
MAXIM |
23+ |
DIP-8 |
6500 |
绝对全新原装!现货!特价!请放心订购! |
询价 | ||
MAXIM/美信 |
20+ |
TQFN |
2500 |
原装现货支持BOM配单服务 |
询价 | ||
MAXIM |
22+ |
QFN |
1500 |
强调现货,随时查询! |
询价 | ||
Maxim |
22+ |
32TQFNEP |
9000 |
原厂渠道,现货配单 |
询价 | ||
MAXIM |
23+ |
QFP |
3200 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
MAXIM |
23+ |
DIP |
9526 |
询价 | |||
MAXIM |
22+ |
DIP8 |
2250 |
100%全新原装公司现货供应!随时可发货 |
询价 | ||
MAXIM-美信 |
24+25+/26+27+ |
QFN-32 |
6328 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 |