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LM2576T-3.3/NOPB中文資料
LM2576T-3.3/NOPB數(shù)據(jù)手冊(cè)規(guī)格書(shū)PDF詳情
1 Features
? Newer products available:
– LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-
MHz synchronous converter
– LM76003 3.5 to 60-V, 3.5-A, 300-kHz to 2.2-
MHz synchronous converter
? For faster time to market:
– TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz
power module
? 3.3-V, 5-V, 12-V, 15-V, and adjustable output
versions
? Adjustable version output voltage range,1.23 V to
37 V (57 V for HV version) ±4 maximum over line
and load conditions
? Specified 3-A output current
? Wide input voltage range: 40 V Up to 60 V for HV
version
? Requires only four external components
? 52-kHz fixed-frequency internal oscillator
? TTL-shutdown capability, low-power standby mode
? High efficiency
? Uses readily available standard inductors
? Create a custom design using the LMR33630 or
LM76003 with the WEBENCH? Power Designer
2 Applications
? Motor drives
? Merchant network and server PSU
? Appliances
? Test and measurement equipment
3 Description
The LM2576 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable
of driving 3-A load with excellent line and load
regulation. These devices are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable
output version.
Requiring a minimum number of external
components, these regulators are simple to use
and include fault protection and a fixed-frequency
oscillator.
The LM2576 series offers a high-efficiency
replacement for popular three-terminal linear
regulators. It substantially reduces the size of the heat
sink, and in some cases no heat sink is required.
A standard series of inductors optimized for use
with the LM2576 are available from several different
manufacturers. This feature greatly simplifies the
design of switch-mode power supplies.
Other features include a ±4 tolerance on output
voltage within specified input voltages and output
load conditions, and ±10 on the oscillator frequency.
External shutdown is included, featuring 50-μA
(typical) standby current. The output switch includes
cycle-by-cycle current limiting, as well as thermal
shutdown for full protection under fault conditions.
The LM76003 requires very few external components
and has a pinout designed for simple, optimum PCB
layout for EMI and thermal performance. See the
device comparison table to compare specs.
LM2576T-3.3/NOPB產(chǎn)品屬性
- 類(lèi)型
描述
- 型號(hào)
LM2576T-3.3/NOPB
- 功能描述
直流/直流開(kāi)關(guān)轉(zhuǎn)換器
- RoHS
否
- 制造商
STMicroelectronics
- 最大輸入電壓
4.5 V
- 開(kāi)關(guān)頻率
1.5 MHz
- 輸出電壓
4.6 V
- 輸出電流
250 mA
- 輸出端數(shù)量
2
- 最大工作溫度
+ 85 C
- 安裝風(fēng)格
SMD/SMT
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
TI |
16+ |
TO-220 |
8301 |
原裝現(xiàn)貨價(jià)格絕對(duì)優(yōu)勢(shì)Y |
|||
TI/德州儀器 |
22+ |
TO-220-5 |
500000 |
原裝現(xiàn)貨支持實(shí)單價(jià)優(yōu)/含稅 |
|||
TI/德州儀器 |
20+ |
TO-220-5 |
6000 |
全新原裝 |
|||
TI/德州儀器 |
24+ |
TO-220-5 |
4987 |
強(qiáng)勢(shì)庫(kù)存!絕對(duì)原裝公司現(xiàn)貨! |
|||
TI |
25+23+ |
TO-220 |
15449 |
絕對(duì)原裝正品全新進(jìn)口深圳現(xiàn)貨 |
|||
TI |
20+ |
TO220-5 |
3854 |
就找我吧!--邀您體驗(yàn)愉快問(wèn)購(gòu)元件! |
|||
TI |
25+ |
TO-220 (KC) |
6000 |
原廠原裝,價(jià)格優(yōu)勢(shì) |
|||
TI |
21+ |
標(biāo)準(zhǔn)封裝 |
100 |
保證原裝正品,需要聯(lián)系張小姐 13544103396 微信同號(hào) |
|||
TI |
22+ |
N/A |
2500 |
進(jìn)口原裝,優(yōu)勢(shì)現(xiàn)貨 |
|||
TI |
22+ |
TO-220-5 |
9000 |
原廠渠道,現(xiàn)貨配單 |
LM2576T-3.3/NOPB 價(jià)格
參考價(jià)格:¥8.8773
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