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MIC4576-3.3BU中文資料
MIC4576-3.3BU數(shù)據(jù)手冊規(guī)格書PDF詳情
General Description
The MIC4576 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC4576 duplicates the pinout and function of the 52kHz LM2576. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.
The MIC4576 is available in 3.3V, and 5V fixed output versions or a 1.23V to 33V adjustable output version. Both versions are capable of driving a 3A load with excellent line and load regulation.
The feedback voltage is guaranteed to ±2 tolerance for adjustable versions, and the output voltage is guaranteed to ±3 for fixed versions, within specified voltages and load conditions. The oscillator frequency is guaranteed to ±10.
In shutdown mode, the regulator draws less than 200μA standby current. The regulator performs cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions.
This series of simple switch-mode regulators requires a minimum number of external components and can operate using a standard series of inductors. Frequency compensation is provided internally.
The MIC4576 is available in TO-220 (T) and TO-263 (U) packages for the industrial temperature range.
Features
? Fixed 200kHz operation
? 3.3V, 5V, and adjustable output versions
? Voltage over specified line and load conditions:
Fixed version: ±3 max. output voltage
Adjustable version: ±2 max. feedback voltage
? Guaranteed 3A switch current
? Wide 4V to 36V input voltage range
? Wide 1.23V to 33V output voltage range
? Requires minimum external components
? < 200μA typical shutdown mode
? 75 efficiency (adjustable version > 75 typical)
? Standard inductors are 25 of typical LM2576 values
? Thermal shutdown
? Overcurrent protection
? 100 electrical thermal limit burn-in
Applications
? Simple high-efficiency step-down (buck) regulator
? Efficient preregulator for linear regulators
? On-card switching regulators
? Positive-to-negative converter (inverting buck-boost)
? Battery Charger
? Negative boost converter
? Step-down to 3.3V for Intel Pentium?
and similar microprocessors
MIC4576-3.3BU產品屬性
- 類型
描述
- 型號
MIC4576-3.3BU
- 功能描述
IC REG BUCK 3.3V 3A TO263-5
- RoHS
否
- 類別
集成電路(IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器
- 系列
-
- 標準包裝
20
- 系列
SIMPLE SWITCHER®
- 類型
降壓(降壓)
- 輸出類型
固定
- 輸出數(shù)
1
- 輸出電壓
12V
- 輸入電壓
4 V ~ 60 V PWM
- 型
電壓模式 頻率 -
- 開關
52kHz 電流 -
- 輸出
1A
- 同步整流器
無
- 工作溫度
-40°C ~ 125°C
- 安裝類型
通孔
- 封裝/外殼
16-DIP(0.300,7.62mm)
- 包裝
管件
- 供應商設備封裝
16-DIP
- 其它名稱
*LM2575HVN-12LM2575HVN-12
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
MICREL/麥瑞 |
25+ |
TO-263-5 |
37118 |
MICREL/麥瑞全新特價MIC4576-3.3BU即刻詢購立享優(yōu)惠#長期有貨 |
|||
MICREL/麥瑞 |
24+ |
TO-263-5 |
502610 |
免費送樣原盒原包現(xiàn)貨一手渠道聯(lián)系 |
|||
MICREL |
23+ |
TO263-5 |
11923 |
||||
MICREL |
16+ |
TO-263 |
8000 |
原裝現(xiàn)貨請來電咨詢 |
|||
MICREL |
24+ |
TO263-5L |
90000 |
一級代理商進口原裝現(xiàn)貨、假一罰十價格合理 |
|||
MICREL |
23+ |
TO263-5 |
65600 |
||||
MICREL |
22+ |
TO263-5L |
6000 |
十年配單,只做原裝 |
|||
MICREL |
20+ |
TO-263-5 |
500 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
|||
MICREL |
23+ |
105 |
現(xiàn)貨庫存 |
||||
MICREL |
TO263-5L |
6234 |
一級代理 原裝正品假一罰十價格優(yōu)勢長期供貨 |
MIC4576-3.3BU 價格
參考價格:¥10.4000
MIC4576-3.3BU 資料下載更多...
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Micrel Semiconductor
Micrel(中文名一般稱為麥瑞半導體或麥克雷爾,目前已被Microchip公司收購)在半導體領域取得了顯著成就,尤其是在低噪聲穩(wěn)壓IC、低壓差穩(wěn)壓IC以及光通信產品等方面。成立于1978年的Micrel,是全球領先的模擬、以太網(wǎng)和高帶寬市場IC解決方案制造商。自1981年起,Micrel正式具備半導體制造能力,從最初的代工模式發(fā)展成為自主研發(fā)和生產高質量模擬電源IC的公司。憑借超過二十年的生產經(jīng)驗,Micrel涵蓋了CMOS、DMOS、Bipolar、NMOS和PMOS等多種制程技術,尤其在電源IC市場上占有重要地位。 Micrel于1994年12月在NASDAQ上市,并于1997年通過IS