关键参数速览
- 工作温度 TA
- 2.525
产品特点 Features
- SOT−223
- Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V, and Adjustable Versions CASE 318H
- Space−Saving SOT−223 Package
- kΩ stability. A minimum capacitance value of 4.7 F with an equivalent series resistance (ESR) that is within the limits of
- 33 m (typ) to 2.2 is required. See Figures 12 and 13. The capacitor type can be ceramic, tantalum, or aluminum
- Protection Diodes
- The LM1117 family has two internal low impedance diode paths that normally do not require protection when
- LM1117I
- The second condition is that the ground end of R2 should be connected directly to the load. This allows true Kelvin sensing where the regulator compensates for the voltage
- Figure 25. Protection Diode Placement
- A combination of protection diodes D1 and D2 may be required in the event that V is shorted to ground and C in adj
- kΩ is greater than 50 F. The peak current capability stated for
- kΩ the internal diodes are for a time of 100 s with a junction temperature of 25 C. These values may vary and are to be used as a general guide.
- Load Regulation
- TJ(max) µ TA
- PD kΩ
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。
| 额定值 | 符号 | 值 | 单位 |
|---|---|---|---|
| Input Voltage (Note 1) | V | 20 | V |
| Case 318H (SOT−223) | |||
| Thermal Resistance, Junction−to−Ambient, Minimum Size | Pad RJA | 160 | °C/W |
| Thermal Resistance, Junction−to−Case | RJC | 15 | °C/W |
| Maximum Die Junction Temperature Range | T | −55 to 150 | °C |
| Storage Temperature Range | T | −65 to 150 | °C |
| Operating Ambient Temperature Range | T | °C | |
| LM1117 | 0 to +125 | ||
| LM1117I | −40 to +125 | ||
| Human Body Model (HBM), Class 2, 2000 V | |||
| Machine Model (MM), Class B, 200 V | |||
| Charge Device Model (CDM), Class IV, 2000 V. PD kΩ RJA |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| Characteristic | 符号 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|
| Reference Voltage, Adjustable Output Devices | V | V | |||
| (V –V = 2.0 V, I = 10 mA, T = 25°C) | 1.238 | 1.25 | 1.262 | ||
| (V –V = 1.4 V to 10 V, I = 10 mA to 800 mA) (Note 4) | 1.225 | − | 1.270 | ||
| Output Voltage, Fixed Output Devices | V | V | |||
| 1.8 V (V = 3.8 V, I = 10 mA, T = 25 °C) | 1.782 | 1.800 | 1.818 | ||
| (V = 3.2 V to 11.8 V, I = 0 mA to 800 mA) (Note 4) | 1.755 | − | 1.845 | ||
| 2.5 V (V in = 4.5 V, I out = 10 mA, T A = 25 °C) | 2.475 | 2.500 | 2.525 | ||
| (V in = 3.9 V to 10 V, I out = 0 mA to 800 mA,) (Note 4) | 2.450 | − | 2.550 | ||
| 3.3 V (V in = 5.3 V, I out = 10 mA, T A = 25 °C) | 3.267 | 3.300 | 3.333 | ||
| (V in = 4.75 V to 10 V, I out = 0 mA to 800 mA) (Note 4) | 3.235 | − | 3.365 | ||
| 5.0 V (V in = 7.0 V, I out = 10 mA, T A = 25 °C) | 4.950 | 5.000 | 5.050 | ||
| (V in = 6.5 V to 12 V, I out = 0 mA to 800 mA) (Note 4) | 4.900 | − | 5.100 | ||
| Line Regulation (Note 5) Adjustable (V = 2.75 V to 16.25 V, | I = 10 mA) Reg | − | 0.04 | 0.1 | % |
| 1.8 V (V = 3.2 V to 11.8 V, I = 0 mA) | − | 0.4 | 1.0 | mV | |
| 2.5 V (V = 3.9 V to 10 V, I = 0 mA) | − | 0.5 | 2.5 | ||
| 3.3 V (V = 4.75 V to 15 V, I = 0 mA) | − | 0.8 | 4.5 | ||
| 5.0 V (V = 6.5 V to 15 V, I = 0 mA) | − | 0.9 | 6.0 | ||
| Load Regulation (Note 5) Adjustable (I = 10 mA to 800 mA, | V = 4.25 V) Reg | − | 0.2 | 0.4 | % |
| 1.8 V (I = 0 mA to 800 mA, V = 3.2 V) | − | 2.6 | 6.0 | mV | |
| 2.5 V (I = 0 mA to 800 mA, V = 3.9 V) | − | 3.3 | 7.5 | ||
| 3.3 V (I = 0 mA to 800 mA, V = 4.75 V) | − | 4.3 | 10 | ||
| 5.0 V (I = 0 mA to 800 mA, V = 6.5 V) | − | 6.7 | 15 | ||
| Dropout Voltage (Measured at V − 100 mV) | V −V | V | |||
| (I = 100 mA) | − | 0.95 | 1.10 | ||
| (I = 500 mA) | − | 1.01 | 1.15 | ||
| (I = 800 mA) | − | 1.07 | 1.20 | ||
| Output Current Limit (V −V = 5.0 V, T = 25°C, Note 6) | I | 1000 | 1500 | 2200 | mA |
| Minimum Required Load Current for Regulation, Adjustable Output | Devices I | − | 0.8 | 5.0 | mA |
| Quiescent Current | I | mA | |||
| 1.8 V (V = 11.8 V) | − | 4.2 | 10 | ||
| 2.5 V (V = 10 V) | − | 5.2 | 10 | ||
| 3.3 V (V = 15 V) | − | 6.0 | 10 | ||
| 5.0 V (V = 15 V) | − | 6.0 | 10 | ||
| Thermal Regulation (T = 25°C, 30 ms Pulse) | − | 0.01 | 0.1 | %/W | |
| Ripple Rejection (V −V = 6.4 V, I = 500 mA, 10 V 120 Hz | Sinewave) RR | dB | |||
| Adjustable | 67 | 73 | − | ||
| 1.8 V | 66 | 70 | − | ||
| 2.5 V | 62 | 68 | − | ||
| 3.3 V | 60 | 64 | − | ||
| 5.0 V | 57 | 61 | − | ||
| Adjustment Pin Current (V = 11.25 V, I = 800 mA) | I | − | 52 | 120 | kΩA |
| Adjust Pin Current Change | I | − | 0.4 | 5.0 | kΩA |
| Temperature Stability | S | − | 0.5 | − | % |
| Long Term Stability (T = 25°C, 1000 Hrs End Point Measurement) | S | − | 0.3 | − | % |
| RMS Output Noise (f = 10 Hz to 10 kHz) | N | − | 0.003 | − | %V |
订货信息与供货形式
| See | detailed | ordering | and | 包装 | information | in | the | 封装 |
|---|---|---|---|---|---|---|---|---|
| See | detailed | ordering | and | shipping | information | in | the | package |
| See | general | marking | information | in the | device | marking |
应用领域 Applications
产品应用与封装尺寸
图纸取自该型号原厂规格书的应用电路与封装尺寸章节，点击图片可放大查看原始尺寸标注。