L4955中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書
L4955規(guī)格書詳情
DESCRIPTION
The L4955 is a family of monolithic ultra very low drop linear regulators designed to supply the most recent microprocessors.
The dropout voltage is only 0.75V (Typ.) at 5A, directly dependent on the output current conditions. Realized in BCDII technology, it has on board a charge pump to properly drive an N-channel power mos Transistor with 150m? of RDSON.
It operates from a 4.5V minimum supply, with a very low quiescent current irrespective of the load; a minimum of 22μF output capacitor is required for stability.
The on-chip trimming techniques improve the precision of the available output voltages to ±2.
■ UP TO 5A OUTPUT CURRENT
■ ±2 PRECISE OUTPUT VOLTAGES
■ FAST TRANSIENT RESPONSE
■ 0.75V TYP. DROP OUT VOLTAGE AT 5A
■ OPERATING INPUT VOLTAGEFROM 4.5V
■ ADJUSTABLE VERSION:
? VO = 1.26V
? INHIBIT (IQ = 120μA TYP.)
? POWER GOOD
? PROGRAMMABLE CURRENT LIMIT
? HEPTAWATT PACKAGE
■ FIXED VERSION:
? 3.3V, 5.1V OUTPUTS
? VERSAWATT PACKAGE
VERY LOW QUIESCENT CURRENT
SHORT CIRCUIT PROTECTION (Foldback function)
THERMAL SHUTDOWN
APPLICATIONS
■ PENTIUM? AND POWER PC? SUPPLIES
■ POST REGULATOR FOR SMPS
■ LOW COST SOLUTION FOR 5V TO 3.3V CONVERSION
■ LOW COST BATTERY CHARGER
■ CONSTANT CURRENT REGULATOR
■ SUITABLE FOR APPLICATION WITH STANDBY FEATURE
產(chǎn)品屬性
- 型號(hào)：
L4955
- 制造商：
STMICROELECTRONICS
- 制造商全稱：
STMicroelectronics
- 功能描述：
5A ULDO LINEAR REGULATORS FAMILY
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST |
2000 |
TO220 |
20271 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
ST/意法 |
24+ |
TO-220 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
ST |
2016+ |
TO220 |
6523 |
只做原裝正品現(xiàn)貨!或訂貨! |
詢價(jià) | ||
ST |
23+ |
TO220 |
12800 |
正規(guī)渠道,只有原裝! |
詢價(jià) | ||
ST |
23+ |
TO220-3 |
260 |
原裝現(xiàn)貨 |
詢價(jià) | ||
ST/意法 |
23+ |
TO220 |
11500 |
原裝現(xiàn)貨,價(jià)格優(yōu)勢(shì) |
詢價(jià) | ||
ST |
22+23+ |
TO-220 |
16036 |
絕對(duì)原裝正品全新進(jìn)口深圳現(xiàn)貨 |
詢價(jià) | ||
ST |
TO-2207 |
68900 |
原包原標(biāo)簽100%進(jìn)口原裝常備現(xiàn)貨! |
詢價(jià) | |||
ST |
22+ |
TO220-3 |
8000 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
ST |
24+ |
TO-220 |
2800 |
原裝現(xiàn)貨!可長(zhǎng)期供貨! |
詢價(jià) |
