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MAX763AMJA规格书详情
General Description
The MAX748A/MAX763A are 3.3V-output CMOS, step down switching regulators. The MAX748A accepts inputs from 3.3V to 16V and delivers up to 500mA. The MAX763A accepts inputs between 3.3V and 11V and delivers up to 500mA. Typical efficiencies are 85 to 90. Quiescent supply current is 1.4mA (MAX763A), and only 0.2µA in shutdown.
Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±5 over line, load, and temperature variations. Fixed-frequency switching allows easy filtering of output ripple and noise, as well as the use of small external components. A 22µH inductor works in most applications, so no magnetics design is necessary.
The MAX748A/MAX763A also feature cycle-by-cycle current limiting, overcurrent limiting, undervoltage lockout, and programmable soft-start protection. The MAX748A is available in 8-pin DIP and 16-pin wide SO packages; the MAX763A comes in 8-pin DIP and SO packages.
Features
♦ Up to 500mA Load Currents
♦ Guaranteed 159kHz to 219.5kHz Current-Mode PWM
♦ 85 to 90 Efficiencies
♦ 1.7mA Quiescent Current (MAX748A)
1.4mA Quiescent Current (MAX763A)
♦ 0.2µA Shutdown Supply Current
♦ 22µH Preselected Inductor Value;
No Component Design Required
♦ Overcurrent, Soft-Start, and Undervoltage
Lockout Protection
♦ Cycle-by-Cycle Current Limiting
♦ 8-Pin DIP/SO Packages (MAX763A)
Applications
5V-to-3.3V Converters
Cellular Phones
Portable Instruments
Hand-Held Computers
Computer Peripherals
产品属性
- 型号:
MAX763AMJA
- 功能描述:
直流/直流开关转换器
- RoHS:
否
- 制造商:
STMicroelectronics
- 最大输入电压:
4.5 V
- 开关频率:
1.5 MHz
- 输出电压:
4.6 V
- 输出电流:
250 mA
- 输出端数量:
2
- 最大工作温度:
+ 85 C
- 安装风格:
SMD/SMT
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM/美信 |
18+ |
SOP8 |
12500 |
全新原装正品,本司专业配单,大单小单都配 |
询价 | ||
MAXIM |
2023+ |
SMD |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
MAX |
2305+ |
原厂封装 |
12500 |
15年芯片行业经验/只供原装正品:0755-83267371邹小姐 |
询价 | ||
MAX |
05+ |
SOP-8 |
100 |
询价 | |||
MAXIM/美信 |
22+ |
SOP-8 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
MAXIM |
23+ |
SOP8 |
865 |
询价 | |||
MAXIM |
SOP-8 |
6000 |
原装现货,长期供应,终端可账期 |
询价 | |||
MAX |
2147+ |
原厂封装 |
12500 |
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+ |
SOP8 |
4675 |
全新原厂原装产品、公司现货销售 |
询价 | ||
MAXIM/美信 |
SOP-8 |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 |