L4947R中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書
| 廠商型號(hào) |
L4947R |
| 功能描述 | 5V-0.5A VERY LOW DROP REGULATOR WITH RESET |
| 文件大小 |
57.78 Kbytes |
| 頁面數(shù)量 |
6 頁 |
| 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 | 2025-8-2 10:24:00 |
| 人工找貨 | L4947R價(jià)格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
L4947R規(guī)格書詳情
DESCRIPTION
The L4947/L4947R is a monolithic integrated circuit in Pentawatt package specially designed to provide a stabilized supply voltage for automotive and industrial electronic systems. Thanks to its very low voltage drop, in automotive applications the L4947/L4947R can work correctly even during the cranking phase, when the battery voltage could fall as low as 6V. Furthermore, it incorporates a complete range of protection circuits against the dangerous overvoltages always present on the battery rail of the car. The reset function makes the device particularly suited to supply microprocessor based systems : a signal is available (after an externally programmable delay) to reset the microprocessor at power-on phase ; at power-off, this signal becomes low inhibiting the microprocessor.
■ PRECISE OUTPUT VOLTAGE (5V ± 4) OVER FULL TEMPERATURE RANGE (– 40 / 125 °C)
■ VERY LOW VOLTAGE DROP (0.75Vmax) OVER FULL T RANGE
■ OUTPUT CURRENT UP TO 500mA
■ RESET FUNCTION
■ POWER-ON RESET DELAY PULSE DEFINED BY THE EXTERNAL CAPACITOR
■ + 80V LOAD DUMP PROTECTION
■ – 80V LOAD DUMP PROTECTION
■ REVERSE VOLTAGE PROTECTION
■ SHORT CIRCUIT PROTECTION AND THER MAL SHUT-DOWN (with hysteresis)
■ LOW START UP CURRENT
產(chǎn)品屬性
- 型號(hào)：
L4947R
- 功能描述：
低壓差穩(wěn)壓器 - LDO 5.0V 0.5A Positive
- RoHS：
否
- 制造商：
Texas Instruments
- 最大輸入電壓：
36 V
- 輸出電壓：
1.4 V to 20.5 V
- 回動(dòng)電壓（最大值）：
307 mV
- 輸出電流：
1 A
- 負(fù)載調(diào)節(jié)：
0.3 %
- 輸出類型：
Fixed
- 最大工作溫度：
+ 125 C
- 安裝風(fēng)格：
SMD/SMT
- 封裝/箱體：
VQFN-20
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST |
2016+ |
ZIP |
6523 |
只做原裝正品現(xiàn)貨!或訂貨! |
詢價(jià) | ||
FAIRCHILD |
20+ |
SOP8 |
2960 |
誠(chéng)信交易大量庫存現(xiàn)貨 |
詢價(jià) | ||
ON/安森美 |
24+ |
SOP-8 |
9600 |
原裝現(xiàn)貨,優(yōu)勢(shì)供應(yīng),支持實(shí)單! |
詢價(jià) | ||
STM |
22+ |
TO2205 |
5000 |
原裝現(xiàn)貨庫存.價(jià)格優(yōu)勢(shì)!! |
詢價(jià) | ||
ST |
25+ |
SOP20 |
880 |
原裝現(xiàn)貨熱賣中,提供一站式真芯服務(wù) |
詢價(jià) | ||
ST |
24+ |
DIP8 |
36500 |
原裝現(xiàn)貨/放心購買 |
詢價(jià) | ||
ST |
24+ |
282 |
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) | |||
ST/意法 |
23+ |
TO220-5 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價(jià) | ||
ST(意法) |
23+ |
NA |
20094 |
正納10年以上分銷經(jīng)驗(yàn)原裝進(jìn)口正品做服務(wù)做口碑有支持 |
詢價(jià) |
