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LM3673TLX-ADJ
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Category:DAC digital-to-analog converter
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Product Name:2MHz, 350 mA step-down DC-DC converter
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Manufacturers:NSC
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Production Batch Number:11+
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Encapsulation:MICRO SMD
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Stock Status:There is stock
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Stock Quantity:12600
- Minimum order quantity: 1
- Details:
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peculiarity
- 16μA typical quiescent current
- 350 mA maximum load capacity
- 2MHzの固定スイッチング周波数PWM(標準値)
- Automatic PFM/PWM mode switching
- 固定および可変出力電圧で利用可能
- 5 はんだボールマイクロSMDパッケージ
- Internal synchronous rectification for high efficiency
- Internal soft start
- 0.01μA(標準値)のシャットダウン電流
- 1セルリチウムイオン電池で動作
- Only three tiny surface-mount external components (one inductor, two ceramic capacitors)
- Current overload and thermal shutdown protection
illustrate
LM3673降圧DC-DCコンバータは、シングルセル・リチウムイオン・バッテリと入力電圧レールから2.7Vから5.5Vまでの低電圧回路への電源供給用に最適化されています。 It can deliver up to 350mA of load current over the entire input voltage range. いくつかの異なる固定出力電圧と、1.1Vからバージョン3.3までの調整可能な出力電圧範囲が利用可能です。
このデバイスは、携帯電話や同様のポータブルシステムで優れた機能と性能を提供します。 LM3673 PWM と PFM 間のインテリジェントな自動切り替えにより、効率が向上します。 PWMモードでは、デバイスは2MHz(標準値)の固定周波数で動作します。 Hysteretic PFM mode extends battery life at light loads, reduced standby operation, and quiescent current of 16μA (typical). 内部同期整流により、PWMモード動作時に高効率を実現します。 シャットダウンモードでは、デバイスはシャットダウンし、バッテリ消費を0.01μA (標準値)に低減します。
LM3673 は、MicroSMD パッケージの鉛 (PB) および鉛 (PB なし) の小型 5 はんだボール・バージョンで供給されます。 スイッチング周波数が2MHz(標準値)と高いため、3個の小型表面実装部品、インダクタ、2個のセラミック・コンデンサを使用できます。
apply
- mobile phone
- Pocket PC
- MP3 player
- W - LAN
- Portable instrument
- Digital cameras
- Portable hard drives
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