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MAX730AMJA规格书详情
General Description
The MAX730A/MAX738A/MAX744A are 5V-output CMOS, step-down switching regulators. The MAX738A/MAX744A accept inputs from 6V to 16V and deliver 750mA. The MAX744A guarantees 500mA load capability for inputs above 6V and has tighter oscillator frequency limits for low-noise (radio) applications. The MAX730A accepts inputs between 5.2V and 11V and delivers 450mA for inputs above 6V. Typical efficiencies are 85 to 96. Quiescent supply current is 1.7mA and only 6µA 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. These regulators require only a single inductor value to work in most applications, so no inductor design is necessary.
The MAX730A/MAX738A/MAX744A also feature cycle by-cycle current limiting, overcurrent limiting, undervoltage lockout, and programmable soft-start protection.
Features
♦ 750mA Load Currents (MAX738A/MAX744A)
♦ High-Frequency, Current-Mode PWM
♦ 159kHz to 212.5kHz Guaranteed Oscillator
Frequency Limits (MAX744A)
♦ 85 to 96 Efficiencies
♦ 1.7mA Quiescent Current
♦ 6µA Shutdown Supply Current
♦ Single Preselected Inductor Value,
No Component Design Required
♦ Overcurrent, Soft-Start, and Undervoltage
Lockout Protection
♦ Cycle-by-Cycle Current Limiting
♦ 8-Pin DIP/SO Packages (MAX730A)
Applications
Portable Instruments
Cellular Phones and Radios
Personal Communicators
Distributed Power Systems
Computer Peripherals
产品属性
- 型号:
MAX730AMJA
- 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 |
23+ |
SOIC-14 |
18000 |
询价 | |||
MAXIM |
20+/21+ |
QFP-208 |
4320 |
全新原装进口价格优惠 |
询价 | ||
MAXIM/美信 |
22+21+ |
DIP8 |
2822 |
16年电子元件现货供应商 终端BOM表可配单提供样品 |
询价 | ||
Maxim/MaximIntegrated/美信半导 |
21+ |
SOP |
3 |
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+ |
SOP |
3200 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
MAXIM |
2023 |
DIP-8 |
3760 |
公司原装现货/支持实单 |
询价 | ||
max |
22+ |
N/A |
6980 |
原装现货,可开13%税票 |
询价 | ||
MAXIM |
23+ |
DIP |
6 |
现货库存 |
询价 | ||
MAXIM |
30350+ |
9750 |
进品原装正品 现货库存带17%增值发票 |
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 |