产品应用与封装尺寸
图纸取自原厂规格书，点击可放大查看原始尺寸标注。
引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 5 | N/C | |
| 6 | V | |
| 7 | V | |
| 8 | N/C | |
| 9 | T | |
| 10 | C |
数据来源：原厂规格书引脚图
产品特点 Features
- •••• Three Terminal Adjustable or Fixed Voltages*
- 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V
- •••• Output Current of 1A
- •••• Operates Down to 1V Dropout
- •••• Line Regulation: 0.2% Max.
- •••• Load Regulation: 0.4% Max.
- •••• SOT-223, TO-252 and SO-8 package available
- •••• High Efficiency Linear Regulators
- •••• Post Regulators for Switching Supplies
- •••• 5V to 3.3V Linear Regulator
- •••• Battery Chargers
- •••• Active SCSI Terminators
- •••• Power Management for Notebook
- •••• Battery Powered Instrumentation
- AMS1117
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 参数 | 器件 | 条件 |
|---|---|---|
| Input Voltage | 15V Lead | |
| Operating | Junction Temperature Range | Thermal |
| Control Section | -40°C to 125°C SO-8 | |
| Power Transistor | -40°C to 125°C TO-252 | |
| Storage temperature | - 65°C to +150°C 46°C/W to | |
| (25 sec) 265°C ϕ = 160°C/W ϕ = 80°C/W | ||
| package ϕ = 90°C/W* |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 参数 | 器件 | 条件 |
|---|---|---|
| Reference Voltage | AMS1117 | I = 10 mA |
| (Note 2) | 1.5V≤ (V - V ) ≤ 12V | |
| Output Voltage (Note 2) | AMS1117-1.5 | V = 3V |
| AMS1117-1.8 | V = 3.3V | |
| AMS1117-2.5 | V = 4V | |
| AMS1117-2.85 | V = 4.35V | |
| AMS1117-3.3 | V = 4.8V | |
| AMS1117-5.0 | V = 6.5V | |
| Line Regulation | AMS1117 | 1.5V≤ (V - V ) ≤ 12V |
| AMS1117-1.5 | 1.5V≤ (V - V ) ≤ 12V | |
| AMS1117-1.8 | 1.5V≤ (V - V ) ≤ 12V | |
| AMS1117-2.5 | 1.5V≤ (V - V ) ≤ 12V | |
| AMS1117-2.85 | 1.5V≤ (V - V ) ≤ 12V | |
| AMS1117-3.3 | 1.5V≤ (V - V ) ≤ 12V | |
| AMS1117-5.0 | 1.5V≤ (V - V ) ≤ 12V | |
| Load Regulation (Notes 2, 3) | AMS1117 | (V - V ) =1.5V, 10mA ≤ I ≤ 0.8A |
| AMS1117-1.5 | V = 3V, 0 ≤ I ≤ 0.8A | |
| AMS1117-1.8 | V = 3.3V, 0 ≤ I ≤ 0.8A | |
| AMS1117-2.5 | V = 5V, 0 ≤ I ≤ 0.8A 3 10 mV 6 20 mV 3 10 mV 6 20 mV 3 12 mV 6 20 mV |
特性曲线（Typical Performance Curves）
