SC1578中文資料SEMTECH數(shù)據(jù)手冊PDF規(guī)格書
SC1578規(guī)格書詳情
DESCRIPTION
The SC1578 is a high performance step-down DC-DC converter, designed to drive an external P-channel MOSFET to generate programmable output voltages. Two main schemes of pulse-skipping and pulsefrequency modulation are employed to maintain low quiescent current and high conversion efficiency over wide ranges of input voltage and loads. The SC1578 delivers 10mA to 2A of output current with 87-93 efficiency at VIN=9V, VOUT=5V. A current sense comparator with both inverting and non-inverting inputs uncommitted is included to provide the crucial function of either current limit protection or constant output current control.
FEATURES
? 4V to 24V input voltage operation.
? High efficiency (up to 95).
? Low quiescent current at 90μA.
? Pulse-skipping and pulse-frequency modulation.
? Inputs-uncommitted current sense comparator.
? Duty cycle adjustable
? 90kHz to 280kHz oscillator frequency
? Power-saving shutdown mode (8μA Typical).
? Push-pull driver output
APPLICATIONS
? Notebook 5V/3.3V main power
? Step-down DC-DC converter module.
? Constant current source for battery chargers.
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
SEMTECH/美國升特 |
23+ |
SOP-8 |
11200 |
原廠授權(quán)一級代理、全球訂貨優(yōu)勢渠道、可提供一站式BO |
詢價 | ||
24+ |
N/A |
67000 |
一級代理-主營優(yōu)勢-實惠價格-不悔選擇 |
詢價 | |||
TI/德州儀器 |
23+ |
SOP-8 |
69820 |
終端可以免費供樣,支持BOM配單! |
詢價 | ||
SEMTECH/美國升特 |
2021+ |
TO263 |
100500 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
詢價 | ||
SEMTECH/升特 |
22+ |
SOP8 |
10730 |
原裝正品 |
詢價 | ||
SC |
SOP8 |
699839 |
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 | |||
SEMTECH |
05/06+ |
SOP8 |
2695 |
全新原裝100真實現(xiàn)貨供應 |
詢價 | ||
SEMTECH |
20+ |
SOP-8 |
2960 |
誠信交易大量庫存現(xiàn)貨 |
詢價 | ||
SEMTECH |
24+ |
SOP |
一級代理分銷/放心采購 |
詢價 | |||
SEMTECH/美國升特 |
21+ |
SOP-8 |
7500 |
百域芯優(yōu)勢 實單必成 可開13點增值稅發(fā)票 |
詢價 |
