製品概要
概要
The L7980 device is a step-down switching regulator with a 2.5 A (minimum) current limited embedded Power MOSFET, so it is able to deliver up to 2 A current to the load depending on the application conditions.
The input voltage can range from 4.5 V to 28 V, while the output voltage can be set starting from 0.6 V to VIN.
Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
The QFN and the HSOP packages with exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively.
-
特徴
- 2 A DC output current
- 4.5 V to 28 V input voltage
- Output voltage adjustable from 0.6 V
- 250 kHz switching frequency, programmable up to 1 MHz
- Internal soft-start and enable
- Low dropout operation: 100% duty cycle
- Voltage feed-forward
- Zero load current operation
- Overcurrent and thermal protection
- VFQFPN 3 x 3 - 8L and HSOP8 package
回路ダイアグラム
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品質 & 信頼性
| 製品型番 | マーケティング･ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| L7980A | NRND | PowerSO-8 | インダストリアル | Ecopack2 | |
| L7980ATR | 量産中 | PowerSO-8 | インダストリアル | Ecopack2 | |
| L7980TR | 量産中 | QFN-8L P 0.5 mm | インダストリアル | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
| 製品型番 | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | パッケージ | 梱包タイプ | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（℃） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||||
| L7980TR | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | QFN-8L P 0.5 mm | Tape and Reel | PHILIPPINES | EAR99 | NEC | -40 | 150 | -40 | |||
| L7980A | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | PowerSO-8 | Tube | PHILIPPINES | EAR99 | NEC | -40 | 150 | -40 | |||
| L7980ATR | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | PowerSO-8 | Tape and Reel | PHILIPPINES | EAR99 | NEC | -40 | 150 | -40 | |||
L7980TR 量産中
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
L7980A NRND
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
L7980ATR 量産中
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。