MAX746C/D中文資料美信數(shù)據(jù)手冊(cè)PDF規(guī)格書
MAX746C/D規(guī)格書詳情
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
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
FAIRCHILD |
23+ |
SSOP |
12000 |
全新原裝假一賠十 |
詢價(jià) | ||
MAXIM/美信 |
23+ |
PDIP |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價(jià) | ||
MAXIM/美信 |
23+ |
NA/ |
3323 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
MAXIM/美信 |
24+ |
DIP |
54815 |
全新原廠原裝正品現(xiàn)貨,可提供技術(shù)支持、樣品免費(fèi)! |
詢價(jià) | ||
MAXIM |
2020+ |
SOP |
35000 |
100%進(jìn)口原裝正品公司現(xiàn)貨庫存 |
詢價(jià) | ||
MAXIM/美信 |
2021+ |
DIP |
5210 |
原裝現(xiàn)貨,優(yōu)勢(shì)渠道訂貨假一賠十 |
詢價(jià) | ||
MAXIM/美信 |
21+ |
NA |
12820 |
只做原裝,質(zhì)量保證 |
詢價(jià) | ||
MAXIM/美信 |
NA |
2171 |
原裝現(xiàn)貨支持BOM配單服務(wù) |
詢價(jià) | |||
MaximIntegrated |
23+ |
16-PDIP |
66800 |
原廠授權(quán)一級(jí)代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
詢價(jià) | ||
MAXIM |
23+ |
SOP |
4963 |
詢價(jià) |
