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 |
24+ |
PDIP |
5500 |
優(yōu)勢產(chǎn)品!100%全新原裝現(xiàn)貨供應(yīng) |
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 | ||
MAXIM |
22+ |
PDIP |
3000 |
原裝正品,支持實(shí)單 |
詢價 | ||
MAXIM/美信 |
21+ |
NA |
12820 |
只做原裝,質(zhì)量保證 |
詢價 | ||
MAXIM |
23+ |
DIP |
3000 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售! |
詢價 | ||
MaximIntegrated |
23+ |
16-PDIP |
66800 |
原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
詢價 | ||
MAXIM |
23+ |
SOP |
4963 |
詢價 | |||
MAXIM |
22+ |
SOP16 |
5000 |
強(qiáng)調(diào)現(xiàn)貨,隨時查詢! |
詢價 | ||
MAXIM |
05+ |
原廠原裝 |
4483 |
只做全新原裝真實(shí)現(xiàn)貨供應(yīng) |
詢價 | ||
MAXIM |
22+ |
DIP-16 |
8200 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 |
