首頁(yè)>E-L4973D3.3>規(guī)格書(shū)詳情
E-L4973D3.3中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠商型號(hào) |
E-L4973D3.3 |
| 功能描述 | 3.5A step down switching regulator |
| 文件大小 |
367.28 Kbytes |
| 頁(yè)面數(shù)量 |
27 頁(yè) |
| 生產(chǎn)廠商 | STMicroelectronics |
| 企業(yè)簡(jiǎn)稱 |
STMICROELECTRONICS【意法半導(dǎo)體】 |
| 中文名稱 | 意法半導(dǎo)體集團(tuán)官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-8-4 17:42:00 |
| 人工找貨 | E-L4973D3.3價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
E-L4973D3.3規(guī)格書(shū)詳情
描述 Description
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15?) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).
特性 Features
■ Up to 3.5A step down converter
■ Operating input voltage from 8V to 55V
■ 3.3V and 5.1V (±1) fixed output, and adjustable outputs from:
– 0.5V to 50V (3.3 type)
– 5.1V to 50V (5.1 type)
■ Frequency adjustable up to 300kHz
■ Voltage feed forward
■ Zero load current operation (min 1mA)
■ Internal current limiting (pulse by pulse and HICCUP mode)
■ Precise 5.1V (1.5) reference voltage externally available
■ Input/output synchronization function
■ Inhibit for zero current consumption (100mA typ. at VCC = 24V)
■ Protection against feedback disconnection
■ Thermal shutdown
■ Output over voltage protection
■ Soft start function
產(chǎn)品屬性
- 型號(hào)：
E-L4973D3.3
- 功能描述：
直流/直流開(kāi)關(guān)調(diào)節(jié)器 3.3V 3.5A Step-Down
- RoHS：
否
- 制造商：
International Rectifier
- 最大輸入電壓：
21 V
- 開(kāi)關(guān)頻率：
1.5 MHz
- 輸出電壓：
0.5 V to 0.86 V
- 輸出電流：
4 A
- 安裝風(fēng)格：
SMD/SMT
- 封裝/箱體：
PQFN 4 x 5
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
STMicroelectronics |
18+ |
ICREGBUCK3.3V/ADJ18PWRDI |
6580 |
公司原裝現(xiàn)貨 |
詢價(jià) | ||
ST |
24+ |
原廠原封 |
6523 |
進(jìn)口原裝公司百分百現(xiàn)貨可出樣品 |
詢價(jià) | ||
STMicroelect |
23+ |
18-DIP |
8795 |
詢價(jià) | |||
ST |
25+23+ |
SOP |
21821 |
絕對(duì)原裝正品全新進(jìn)口深圳現(xiàn)貨 |
詢價(jià) | ||
ST |
24+ |
10000 |
詢價(jià) | ||||
E-L4978D |
785 |
785 |
詢價(jià) | ||||
STM |
ROHS |
56520 |
一級(jí)代理 原裝正品假一罰十價(jià)格優(yōu)勢(shì)長(zhǎng)期供貨 |
詢價(jià) | |||
STM |
23+ |
316 |
詢價(jià) | ||||
STMicroelectronics |
24+ |
18-DIP |
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) | ||
空 |
23+ |
SOP |
5000 |
原裝正品,假一罰十 |
詢價(jià) |
