AP1122TL-U

厂商：
DIODES
封装：
描述：
AP1122TL-U - 1A LOW DROPOUT POSITIVE REGULATOR - Diodes Incorporated

数据手册：

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数据手册
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AP1122TL-U 数据手册

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Description AP1122 is a low dropout positive fixed-mode regulator with 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 1.2V logic supply. AP1122 is also well suited for other applications such as VGA cards. AP1122 is guaranteed to have lower than 1.3V dropout at full load current making it ideal to provide well-regulated outputs of 1.2 output voltage with 2.5V input voltage supply. Pin Assignments (Top View) 3 2 1 Tab is VOUT SOT223-3L VIN VOUT GND Applications • • PC peripheral Communication (Top View) 3 2 VIN VOUT GND Features 1 • • • • • • • • • 1.3V maximum dropout at full load current Fixed 1.2V± 2% output voltage Fast transient response Output current limiting Built-in thermal shutdown Good noise rejection Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L SOT89-3L, SOT223-3L and TO252-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) Tab is VOUT TO252-3L/ TO263-3L (Top View) 3 2 1 Tab is VOUT SOT89-3L ( Top View) VIN VOUT GND 3 2 1 Tab is VOUT TO220-3L Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 1 of 11 www.diodes.com VIN VOUT GND AP1122 Document number: DS31012 Rev. 9 - 2 May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Typical Application Circuit 2.5V C1 100uF VIN VOUT GND Tab is VOUT C2 100uF 1.2V/1A Pin Descriptions Pin Name GND VOUT I/O I O Pin # 1 2 Ground Pin The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. Description VIN I 3 Functional Block Diagram V IN 3 2 V OUT + + CURRENT LIMIT 1.2V + + Thermal Shutdown 1 GND AP1122 Document number: DS31012 Rev. 9 - 2 2 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Absolute Maximum Ratings Symbol VIN TST TMJ Parameter DC Supply Voltage Storage Temperature Maximum Junction Temperature Rating -0.3 to 12 -65 to +150 150 Unit V o C o C Recommended Operating Conditions Symbol IOUT TOP Parameter Min 0 Max 1.0 125 Unit A o C Output Current Operating Junction Temperature Range Electrical Characteristics (Under Operating Conditions) Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 4) Thermal Regulation Ripple Rejection Temperature Stability Test Conditions 2.5V≦VIN≦12V, IO=10mA, TA=25 C 2.5V≦VIN≦12V, IO=10mA, TA=25oC VIN=2.5V~12V, 10mA

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AP1122TL-U

1. 物料型号： - 型号为AP1122，是一款1A低dropout正固定模式调节器。

2. 器件简介： - AP1122是专为低电压IC应用设计的低dropout正固定模式调节器，例如高速总线终止和低电流1.2V逻辑供电。也适用于VGA卡等其他应用。AP1122保证在满载电流下dropout低于1.3V，非常适合提供1.2V输出电压和2.5V输入电压的良好调节输出。

3. 引脚分配： - GND（1脚）：地端。 - VOUT（2脚）：调节器的输出端。需要连接至少10uF的电容（0.15Q S ESR S 20Q）以确保稳定性。 - VIN（3脚）：调节器的输入端。通常需要连接一个大储能电容以确保在负载瞬态响应期间输入电压不会低于最小dropout电压。

4. 参数特性： - 最大dropout电压：满载电流下1.3V。 - 固定1.2V±2%输出电压。 - 快速瞬态响应。 - 输出电流限制。 - 内置热保护。 - 良好的噪声抑制。

5. 功能详解： - AP1122具有低dropout电压、固定输出电压、快速瞬态响应等特点，适用于需要稳定供电的低电压IC应用。

6. 应用信息： - 应用于PC周边通信。

7. 封装信息： - 封装类型包括SOT223-3L、TO252-3L、SOT89-3L、TO263-3L和TO220-3L。 - SOT89-3L、SOT223-3L和TO252-3L提供“绿色”封装（无溴、锑），符合无铅表面处理/RoHS合规。

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