| FLYiNG 零件編號 | ICAT111712KHRIAT |
| FLYiNG 散料庫存 | 5 |
| FLYiNG 標準包裝庫存 | 電洽/Contact |
| 製造商/品牌商 | IAT |
| 製造商/品牌商零件編號 | AT1117-1.2KHR |
| 說明 | LINEAR IC AT1117-1.2KHR SOT-223 |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| 電源管理 LDO | Adjustable Precision Shunt Regulators |
| 製造商 | IAT |
| 系列 | AT1117 |
| 原廠料號 | AT1117-1.2KHR |
| 輸入電壓 Vin | 2.7 ~ 18 V |
| 輸出電壓 | 1.2V |
| 輸出電流 | 1A |
| 靜態電流 | 7mA |
| 脈衝抑制 | 70dB@120Hz |
| 壓差電壓 | 1.2V~1.5V |
| 功耗 | 850mW |
| 工作溫度 | -40 ~ +85 °C |
| 封裝／外殼 | SOT-223 |
| 安裝類型 | SMD 表面黏著式 |
| 無鉛狀態RoHS | RoHS / Halogen Free |
| 標準包裝數量 | 3000/REEL 捲軸 |
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AT1117
1A Low Dropout Precision Regulator
FEATURES
AT1117
1A Low Dropout Precision Regulator
FEATURES
- 3-Terminal Adjustable or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
- Output Current of 1A
- Guaranteed Dropout Voltage at Multiple CurrentLevels
- Fast Transient Response
- Built-in Thermal Limiting
- Good Noise Rejection
- Compatible with tantalum capacitor, electrolytic Capacitor and MLCC
- Cellular Telephones
- Wireless and DSL Modems
- Digital Still Cameras
- MP3 Players
- Portable Instruments
- Microprocessors and DSP Core Supplies
The AT1117 is a positive low dropout regulator designed to provide up to 1A of output current. The device is available in an adjustable version and fixed output voltages of 1.2V to 5V. All internal circuitry is designed to operate down to 1.2V input to output differential. Dropout voltage is guaranteed at a typical of 1.2V at 1A, decreasing at lower load currents. On chip trimming adjusts the reference/output voltage to within ±2%. Current limit is also trimmed in order to minimize the stress on both the regulator and the power source circuitry under overload conditions.
The low profile surface mount SOT89-3L, SOT223 and TO252-2L package allows the device to be used in applications where space is limited. The AT1117 requires an output capacitance for stability. Output capacitors of this size or larger are normally included in most regulator designs.
The low profile surface mount SOT89-3L, SOT223 and TO252-2L package allows the device to be used in applications where space is limited. The AT1117 requires an output capacitance for stability. Output capacitors of this size or larger are normally included in most regulator designs.
AT1117
1A 低壓差精密穩壓器
特性
- 三端子 可調式或固定輸出：1.2V、1.5V、1.8V、2.5V、3.3V、5V
- 輸出電流 1A
- 在多種電流條件下保證壓降電壓
- 快速瞬態響應
- 內建過熱限制
- 良好的雜訊抑制能力
- 相容於鉭質電容、鋁電解電容與多層陶瓷電容（MLCC）
應用
- 行動電話
- 無線與 DSL 數據機
- 數位相機
- MP3 播放器
- 可攜式儀器
- 微處理器與 DSP 核心電源
說明
AT1117 為正電壓低壓差穩壓器，設計可提供最高 1A 的輸出電流。本元件提供可調式版本，以及 1.2V 至 5V 的固定輸出電壓版本。所有內部電路設計可在輸入與輸出電壓差最低 1.2V 的條件下運作。壓降電壓在 1A 時典型值為 1.2V，並隨負載電流降低而下降。晶片內部修整可將參考／輸出電壓調整至 ±2% 範圍內。電流限制亦經修整，以在過載條件下降低穩壓器與電源電路的應力。低高度表面黏著封裝 SOT89-3L、SOT223 及 TO252-2L，使其適用於空間受限的應用。AT1117 需要輸出電容以確保穩定性。此類容量或更大的輸出電容通常已包含於大多數穩壓器設計中。