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LINEAR IC LM2937L-50-TQ3-R TO-263-3 UTC
| 附件下載 | |
| 商品名稱 | CMOS IC |
| 訂購數量 | |
| 依數量訂價 | NTD |
| FLYiNG 零件編號 | ICLM2937L50TQ3RUTC |
| FLYiNG 庫存現貨 | 3,200 |
| 製造商 | UTC |
| 製造商零件編號 | LM2937L-50-TQ3-R |
| 說明 | LINEAR IC LM2937L-50-TQ3-R TO-263-3 UTC |
| 無鉛狀態 / RoHS 指令狀態 | RoHS |
| 積體電路類型 | LINEAR INTEGRATED CIRCUIT |
| 製造商 | UTC |
| 系列 | LM2397 |
| 原廠料號 | LM2937L-50-TQ3-R |
| 輸入電壓Vin | 26V |
| 輸出電壓Vout | 5V |
| 靜態電流IQ | 10mA |
| 功耗 | 內部受限 |
| 接面溫度 | 150°C |
| 封裝／外殼 | TO-263-3 |
| 安裝類型 | SMD 表面黏著式 |
| 無鉛狀態RoHS | RoHS |
| 標準包裝數量 | 800/Reel Tape Reel 捲裝 |
LM2937 LINEAR INTEGRATED CIRCUIT
500mA LOW DROPOUT VOLTAGE REGULATOR
DESCRIPTION
The UTC LM2937 is a positive voltage regulator capable of supplying up to 500mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5V(1V guaranteed maximum over the full operating temperature range).Special circuitry has been incorporated to minimize the quiescent current to typically only 10mA with a full 500mA load current when the input to output voltage differential is greater than 3V.
The UTC LM2937 requires an output bypass capacitor for stability.As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The UTC LM2937 is stable for all ESR below 3Ω.This allows the use of low ESR chip capacitors.
Ideally suited for automotive applications, the UTC LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps and up to +60V/-50V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.
FEATURES
LM2937 線性集成電路
500mA 低壓差穩壓器
描述
UTC LM2937 是一款正電壓調節器，能夠提供高達 500mA 的負載電流。 PNP 功率晶體管的使用提供了低壓差電壓特性。負載電流為 500mA 時，輸出保持在穩壓狀態所需的最小輸入到輸出電壓差通常為 0.5V（在整個工作溫度範圍內保證最大值為 1V）。已採用特殊電路將靜態電流降至最低當輸入到輸出電壓差大於 3V 時，在 500mA 負載電流下為 10mA。
UTC LM2937 需要一個輸出旁路電容器以確保穩定性。與大多數低壓差穩壓器一樣，該電容器的 ESR 仍然是一個關鍵的設計參數，但 LM2937 包含可放寬 ESR 要求的特殊補償電路。 UTC LM2937 對於低於 3Ω 的所有 ESR 都是穩定的。這允許使用低 ESR 芯片電容器。
UTC LM2937 非常適合汽車應用，可保護自身和任何負載電路免受電池反向連接、兩個電池跳變和高達 +60V/-50V 的負載突降瞬變的影響。還內置了熟悉的穩壓器功能，例如短路和熱關斷保護。
特徵
500mA LOW DROPOUT VOLTAGE REGULATOR
DESCRIPTION
The UTC LM2937 is a positive voltage regulator capable of supplying up to 500mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5V(1V guaranteed maximum over the full operating temperature range).Special circuitry has been incorporated to minimize the quiescent current to typically only 10mA with a full 500mA load current when the input to output voltage differential is greater than 3V.
The UTC LM2937 requires an output bypass capacitor for stability.As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The UTC LM2937 is stable for all ESR below 3Ω.This allows the use of low ESR chip capacitors.
Ideally suited for automotive applications, the UTC LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps and up to +60V/-50V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.
FEATURES
- Fully specified for operation over -40C~ +125C
- Output current in excess of 500mA
- Output trimmed for 5% tolerance under all operating conditions
- Typical dropout voltage of 0.5V at full rated load current
- Wide output capacitor ESR range, up to 3Ω
- Reverse battery protection
- Internal short circuit and thermal overload protection
- 60V input transient protection
- Mirror image insertion protection
- Built-in ON/OFF control function
LM2937 線性集成電路
500mA 低壓差穩壓器
描述
UTC LM2937 是一款正電壓調節器，能夠提供高達 500mA 的負載電流。 PNP 功率晶體管的使用提供了低壓差電壓特性。負載電流為 500mA 時，輸出保持在穩壓狀態所需的最小輸入到輸出電壓差通常為 0.5V（在整個工作溫度範圍內保證最大值為 1V）。已採用特殊電路將靜態電流降至最低當輸入到輸出電壓差大於 3V 時，在 500mA 負載電流下為 10mA。
UTC LM2937 需要一個輸出旁路電容器以確保穩定性。與大多數低壓差穩壓器一樣，該電容器的 ESR 仍然是一個關鍵的設計參數，但 LM2937 包含可放寬 ESR 要求的特殊補償電路。 UTC LM2937 對於低於 3Ω 的所有 ESR 都是穩定的。這允許使用低 ESR 芯片電容器。
UTC LM2937 非常適合汽車應用，可保護自身和任何負載電路免受電池反向連接、兩個電池跳變和高達 +60V/-50V 的負載突降瞬變的影響。還內置了熟悉的穩壓器功能，例如短路和熱關斷保護。
特徵
- 完全指定用於 -40C~ +125C 的操作
- 輸出電流超過 500mA
- 在所有工作條件下，輸出調整為 5% 的容差
- 滿額定負載電流下的典型壓差為 0.5V
- 寬輸出電容 ESR 範圍，高達 3Ω
- 電池反接保護
- 內部短路和熱過載保護
- 60V輸入瞬態保護
- 鏡像插入保護
- 內置開/關控制功能
