LP2957A數(shù)據(jù)手冊集成電路（IC）的線性+開關穩(wěn)壓器規(guī)格書PDF
| 廠商型號 |
LP2957A |
| 參數(shù)屬性 | LP2957A 封裝/外殼為TO-263-6，D2Pak（5 引線 + 接片），TO-263BA；包裝為卷帶（TR）；類別為集成電路（IC）的線性+開關穩(wěn)壓器；產(chǎn)品描述：IC REG LIN 5V 250MA DDPAK/TO263 |
| 功能描述 | 具有高精度和電源正常指示功能的 250mA、30V、低壓降穩(wěn)壓器 |
| 封裝外殼 | TO-263-6，D2Pak（5 引線 + 接片），TO-263BA |
| 制造商 | TI Texas Instruments |
| 中文名稱 | 德州儀器 美國德州儀器公司 |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2025-8-24 20:00:00 |
| 人工找貨 | LP2957A價格和庫存，歡迎聯(lián)系客服免費人工找貨 |
LP2957A規(guī)格書詳情
描述 Description
The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150?μA typical at 1?mA load), and very low dropout voltage (470?mV typical at 250?mA load current).Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where μP operation may be unpredictable. Output crowbar (50?mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.The LP2957 is available in the five-lead TO-220 and DDPAK/TO-263 packages.
特性 Features
? 5V Output within 1.4% Over Temperature (A Grade)
? Easily Programmed for Snap-On/Snap-Off Output
? Ensured 250?mA Output Current
? Extremely Low Quiescent Current
? Low Input-Output Voltage Required for Regulation
? Reverse Battery Protection
? Extremely Tight Line and Load Regulation
? Very Low Temperature Coefficient
? Current and Thermal Limiting
? Error Flag Signals when Output is out of Regulation
技術參數(shù)
- 制造商編號
：LP2957A
- 生產(chǎn)廠家
：TI
- Iout (Max) (A)
：0.25
- Vin (Max) (V)
：30
- Vin (Min) (V)
：-20
- Vout (Max) (V)
：5
- Vout (Min) (V)
：5
- Fixed output options (V)
：5
- Noise (uVrms)
：320
- Iq (Typ) (mA)
：0.15
- Thermal resistance θJA (°C/W)
：60
- Rating
：Catalog
- Load capacitance (Min) (μF)
：2.2
- Regulated outputs (#)
：1
- Features
：Enable
- Accuracy (%)
：3
- PSRR @ 100 KHz (dB)
：14
- Dropout voltage (Vdo) (Typ) (mV)
：470
- Operating temperature range (C)
：-40 to 125
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
NS/國半 |
24+ |
NA/ |
4848 |
原裝現(xiàn)貨,當天可交貨,原型號開票 |
詢價 | ||
NS |
24+ |
TO220 |
20000 |
全新原廠原裝，進口正品現(xiàn)貨，正規(guī)渠道可含稅??！ |
詢價 | ||
TI |
24+ |
DDPAK/TO-263|5 |
55200 |
免費送樣原盒原包現(xiàn)貨一手渠道聯(lián)系 |
詢價 | ||
N/S |
25+ |
NA |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
NATIONALSEMICONDUCTOR |
21+ |
NA |
12820 |
只做原裝,質量保證 |
詢價 | ||
NS |
25+ |
TO-263-5 |
4500 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售! |
詢價 | ||
TI/德州儀器 |
23+ |
DDPAK |
3869 |
原裝正品代理渠道價格優(yōu)勢 |
詢價 | ||
TI |
2021 |
QFP |
1000 |
全新、原裝 |
詢價 | ||
Texas Instruments |
23+/24+ |
TO-220-5 |
8600 |
只供原裝進口公司現(xiàn)貨+可訂貨 |
詢價 | ||
NS |
24+ |
TO-220 |
3 |
詢價 |
