MAX746ESE中文资料PDF规格书
MAX746ESE规格书详情
General Description
The MAX746 is a high-efficiency, high-current, step-down DC-DC power-supply controller that drives external N-channel FETs. It provides 93 to 96 efficiency from a 6V supply voltage with load currents ranging from 50mA up to 3A. It uses a pulse-width-modulating (PWM) current-mode control scheme to provide precise output regulation and low output noise. The MAX746s 4V to 15V input voltage range, fixed 5V/adjustable (Dual-ModeTM) output, and adjustable current limit make this device ideal for a wide range of applications.
High efficiency is maintained with light loads due to a proprietary automatic pulse-skipping control (Idle-ModeTM) scheme that minimizes switching losses by reducing the switching frequency at light loads. The low 950µA quiescent current and ultra-low 1.4µA shutdown current further extend battery life.
Features
♦ 93 to 96 Efficiency for 50mA to 3A
Output Currents
♦ 4V to 15V Input Voltage Range
♦ Low 950µA Supply Current
♦ 1.4µA Shutdown Current
♦ Drives External N-Channel FETs
♦ Fixed-Frequency Current-Mode PWM (Heavy Loads)
♦ Idle-Mode PFM (Light Loads)
♦ Cycle-by-Cycle Current Limiting
♦ 2V ±1.5 Accurate Reference Output
♦ Adjustable Soft-Start
♦ Undervoltage Lockout
♦ Precision Comparator for Power-Fail or
Low-Battery Warning
Applications
5V-to-3.3V Green PC Applications
Notebook/Laptop Computers
Personal Digital Assistants
Battery-Operated Equipment
Cellular Phones
产品属性
- 型号:
MAX746ESE
- 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
- 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
- 封装/箱体:
CPAK
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
20+/21+ |
QFP240 |
4320 |
全新原装进口价格优惠 |
询价 | ||
MAXIM |
22+ |
SMD |
6980 |
原装现货,可开13%税票 |
询价 | ||
MAXIM |
22+ |
SOP16 |
5000 |
品牌一级代理,新加坡香港上百万现货,欢迎查询! |
询价 | ||
MAXIM |
2016+ |
SSOP16 |
6528 |
只做原厂原装现货!终端客户个别型号可以免费送样品! |
询价 | ||
MAXIM/美信 |
22+ |
QFN |
50000 |
只做原装正品,假一罚十,欢迎咨询 |
询价 | ||
ADI(亚德诺)/MAXIM(美信) |
23+ |
7350 |
原装进口,原厂直销!当天可交货,支持原型号开票! |
询价 | |||
MAXIM |
2017+ |
SSOP |
25896 |
深圳代理原装现货进口库存(香港-日本-台湾)开17点增票 |
询价 | ||
MAXIM |
23+ |
SMD |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
MAXIM/美信 |
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 | ||||
MAXIM |
23+ |
SMD |
6500 |
绝对全新原装!现货!特价!请放心订购! |
询价 |