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。
关键参数速览
- 电源电压 VCC
- 75
产品特点 Features
- Output Current up to 1 A
- Low Dropout Voltage (1.2V at 1A Output current)
- Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V,
- 1.8V, 2.5V, 2.85V, 3.3V, 5.0V
- Line Regulation typically at 0.1% max. TO-252 PKG
- Load Regulation typically at 0.2% max.
- Internal Current and Terminal Protection
- Maximum Input Voltage 20V
- Surface Mount Package SOT-223, TO-252, SOT-89
- 100% Thermal Limit Burn-In
- SOT-89 PKG
- Moisture Sensitivity Level 3
- 1A L.D.O VOLTAGE REGULATOR LM1117
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。
| CHARACTERISTIC | 符号 | 最小 | 最大 | 单位 |
|---|---|---|---|---|
| DC Input Voltage | V | - | 20 | V |
| Lead Temperature (Soldering, 5 seconds) | T | - | 260 | ℃ |
| Operating Junction Temperature Range | T | -40 | 125 | ℃ |
| Storage Temperature Range | T | -65 | 150 | ℃ |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 符号 | 参数 | 条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|
| For ADJ Output | Voltage | (T =25℃, C = | 10uF unless | otherwise | specified) | |
| V | Reference Voltage V | =5V, I =10mA | 1.238 | 1.250 | 1.262 | V |
| I | = 10mA to 1A, V - V = | 1.5V to | ||||
| V | Reference Voltage O | IN REF | 1.219 | 1.281 | V | |
| ΔV Line | Regulation I | = 10mA , V - V = 1.5V to | 12V | 0.1 | 0.2 | % |
| ΔV Load | Regulation I | = 10mA to 1A, V - V = 2 V | 0.2 | 0.4 | % | |
| V | Operating Input Voltage | 12 | V | |||
| I | Adjustment pin Current V | - V = 1.5V to 12V, I = | 100mA | 50 | 120 | uA |
| ΔI | IN REF | 0.5 | 5 | uA | ||
| I | Minimum Load Current V | =5V, V =0V | 5 | 10 | mA | |
| I | Current Limit V | - V = 5V | 1000 | 1250 | 1600 | mA |
| N | Output Noise(%V ) B | = 10Hz to 10kHz, T = 25℃ | 0.003 | % | ||
| SVR | Supply Voltage Rejection O | 60 | 75 | dB | ||
| For 1.2V Output | Voltage | (T =25℃, C = | 10uF unless | otherwise | specified) | |
| V | Output Voltage V | = 2.7V, I = 10mA | 1.176 | 1.200 | 1.224 | V |
| V | Output Voltage | IN O | 1.152 | 1.248 | V | |
| ΔV Line | Regulation I | = 0mA , V = 2.7V to 12V | 0.1 | 0.2 | % | |
| ΔV Load | Regulation I | = 10mA to 1A, V = 3.2V | 0.2 | 0.4 | % | |
| V | Operating Input Voltage | 12 | V | |||
| I | Quiescent Current V | - V = 5V | 5 | 10 | ㎃ | |
| I | Current Limit V | - V = 5V | 1000 | 1250 | 1600 | ㎃ |
| N | Output Noise(%V ) B | = 10Hz to 10kHz, T = 25℃ | 0.003 | % | ||
| SVR | Supply Voltage Rejection O | 60 | 75 | dB |
特性曲线（Typical Performance Curves）
订货信息与供货形式
| 器件 | 封装 |
|---|---|
| LM1117GS-ADJ | |
| LM1117GRS-ADJ LM1117F-ADJ LM1117GF-ADJ |