ST777ACD中文資料意法半導體數(shù)據(jù)手冊PDF規(guī)格書
ST777ACD規(guī)格書詳情
DESCRIPTION
The ST777/778/779 are dc-dc converters that step-up from low voltage inputs requiring only three external components, an inductor (typically 22μH) and two capacitors. The device include a Sinchronous Rectifier that eliminates the need for an external catch diode, and allows regulation even when the input is greater than the output.
Unlike others step-up DC-DC converters the ST777/778/779’s Sinchronous Rectifier turns off in the shutdown mode, fully disconnecting the output from the source. This eliminates the current drain associated with conventional step-up converters when off or in shutdown. Supply current is 270μA under no load and only 20μA in stand by mode.
■ 1V TO 6V INPUT GUARANTEES START-UP UNDER LOAD
■ MAXIMUM OUTPUT CURRENT OF 300mA
(778 OR 779 ADJUSTED TO 3V)
■ LOAD FULLY DISCONNECTED IN SHUTDOWN
■ TYPICAL EFFICIENCY OF 82
■ INTERNAL 1A POWER SWITCH AND SYNCHRONOUS RECTIFIER
■ ADJUSTABLE CURRENT LIMIT ALLOWS LOW-COST INDUCTORS
■ SUPPLY CURRENT OF 270μA (NO LOAD)
■ SHUTDOWN SUPPLY CURRENT 20μA
■ PACKAGE AVAILABLE: DIP-8 AND SO-8
產(chǎn)品屬性
- 型號：
ST777ACD
- 功能描述：
直流/直流開關轉換器 Low Volt Adj Stepup
- RoHS：
否
- 制造商：
STMicroelectronics
- 最大輸入電壓：
4.5 V
- 開關頻率：
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
- 安裝風格：
SMD/SMT
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
SITRONIX |
23+ |
NA/ |
2115 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
SITRONIX |
24+ |
NA |
58000 |
全新原廠原裝正品現(xiàn)貨,可提供技術支持、樣品免費! |
詢價 | ||
Sitronix |
24+ |
35200 |
一級代理/放心采購 |
詢價 | |||
ST |
SOP8 |
36900 |
集團化配單-有更多數(shù)量-免費送樣-原包裝正品現(xiàn)貨-正規(guī) |
詢價 | |||
SITRONIX |
11+ |
COG |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
ROHS |
SMD(8PIN) |
56520 |
一級代理 原裝正品假一罰十價格優(yōu)勢長期供貨 |
詢價 | |||
Sitronix |
589220 |
16余年資質 絕對原盒原盤 更多數(shù)量 |
詢價 | ||||
ST |
22+ |
SOP8 |
16900 |
支持樣品 原裝現(xiàn)貨 提供技術支持! |
詢價 | ||
ST |
23+ |
SOP8 |
16900 |
正規(guī)渠道,只有原裝! |
詢價 | ||
SITRONIX |
2018+ |
COG |
6000 |
全新原裝正品現(xiàn)貨,假一賠佰 |
詢價 |
