製品概要
概要
The A5970AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.35 A so it is able to deliver up to 1 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to VIN. The device uses an internal P-channel DMOS transistor (with a typical RDS(on)of 250 mΩ) as switching element to minimize the size of the external components.An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.
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特徴
- Qualified following the AEC-Q100 requirements (see PPAP for more details)
- 1 A DC output current
- Operating input voltage from 4 V to 36 V
- 3.3 V / (± 2%) reference voltage
- Output voltage adjustable from 1.235 V to VIN
- Low dropout operation: 100% duty cycle
- 500 kHz Internally fixed frequency
- Voltage feed-forward
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- 同期化
- Protection against feedback disconnection
- Thermal shutdown
回路ダイアグラム
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注目ビデオ
EDAシンボル / フットプリント / 3Dモデル
すべてのリソース
Resource title | バージョン | Latest update |
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SPICE models (1)
Resource title | バージョン | Latest update | ||
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ZIP | 22 Sep 2016 | 22 Sep 2016 |
品質 & 信頼性
サンプル & 購入
製品型番 | Order from distributors | STから購入 | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度(℃) | Country of Origin | Budgetary Price (US$)*/Qty | ||
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最小 | 最大 | |||||||||||
A5970ADTR | 1 distributors | 量産中 | EAR99 | NEC | Tape and Reel | SO-8 | -40 | 125 | CHINA | |
(*)概算用の参考価格(US$)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。