MAX746C/D中文資料美信數(shù)據(jù)手冊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 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MAXIM/美信 |
23+ |
PDIP |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價 | ||
MAXIM/美信 |
23+ |
DIP |
50000 |
只做原裝正品 |
詢價 | ||
MAXIM/美信 |
23+ |
DIP |
13000 |
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種 |
詢價 | ||
MAXIM |
19+ |
PDIP |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價 | ||
MAXIM/美信 |
23+ |
PDIP |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價 | ||
MAXIM |
22+ |
SOP16 |
5000 |
強(qiáng)調(diào)現(xiàn)貨,隨時查詢! |
詢價 | ||
MAXIM/美信 |
22+ |
NA |
21000 |
原廠原包裝。假一罰十?？砷_13%增值稅發(fā)票。 |
詢價 | ||
MAXIM |
23+ |
DIP-16 |
6500 |
絕對全新原裝!現(xiàn)貨!特價!請放心訂購! |
詢價 | ||
max |
2023+ |
原廠封裝 |
50000 |
原裝現(xiàn)貨 |
詢價 | ||
MAX |
23+ |
3880 |
正品原裝貨價格低 |
詢價 |
