LP38690是TI公司的一款单通道LDO产品，LP38690是借助陶瓷输出电容实现稳定的 1A 低压降 CMOS 线性稳压器，本页介绍了LP38690的产品说明、应用、特性等，并给出了与LP38690相关的TI元器件型号供参考。
LP38690 - 借助陶瓷输出电容实现稳定的 1A 低压降 CMOS 线性稳压器 - 单通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
- Wide Input Voltage Range (2.7 V to 10 V)
- 2.5% Output Accuracy (25°C)
- Low Dropout Voltage: 450 mV at 1 A (typical, 5 VOUT)
- Precision (Trimmed) Bandgap Reference
- Ensured Specifications for –40°C to 125°C
- 1-µA Off-State Quiescent Current
- Thermal Overload Protection
- Foldback Current Limiting
- 3-Lead TO-252, 5-Lead SOT-223, and 6-Bump WSON Packages
- Enable Pin (LP38692)
- Ground Pin Current: 55 µA (typical) at Full Load
- Precision Output Voltage: 2.5% (25°C) Accuracy
- Hard Disk Drives
- Notebook Computers
- Battery Powered Devices
- Portable Instrumentation
The LP38690 and LP38692 low-dropout CMOS linear regulators provide tight output tolerance (2.5% typical), extremely low dropout voltage (450 mV at a 1-A load current, VOUT = 5 V), and excellent AC performance utilizing ultra low ESR ceramic output capacitors.
The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow the full operating current to be used even in high ambient temperature environments.
The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LP38690 | TO-252 (3) | 6.58 mm x 6.10 mm |
| WSON (6) | 3.00 mm x 3.00 mm | |
| LP38692 | SOT-223 (5) | 6.50 mm x 3.56 mm |
| WSON (6) | 3.00 mm x 3.00 mm |
