LP3985IM5X-3.3Manufacturer: NS Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| LP3985IM5X-3.3,LP3985IM5X33 | NS | 60000 | In Stock |
Description and Introduction
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IM5X-3.3 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  
### **Specifications:**   ### **Descriptions and Features:**   This regulator is optimized for efficiency and reliability in power-sensitive designs. |
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Application Scenarios & Design Considerations
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator# Technical Documentation: LP3985IM5X33 Ultra-Low Noise, 150mA CMOS Voltage Regulator
 Manufacturer : National Semiconductor (NS) --- ## 1. Application Scenarios The LP3985IM5X33 is a high-performance, ultra-low dropout (ULDO) CMOS voltage regulator designed for noise-sensitive, battery-powered portable applications. Its combination of low noise, high PSRR, and low quiescent current makes it ideal for powering precision analog and RF circuits. ### 1.1 Typical Use Cases *    RF and Wireless Modules : Provides clean, stable power to voltage-controlled oscillators (VCOs), phase-locked loops (PLLs), low-noise amplifiers (LNAs), and RF transceivers in devices such as smartphones, Wi-Fi modules, Bluetooth headsets, and GPS receivers. The low output noise (~30µVrms, 10Hz to 100kHz) is critical for maintaining signal integrity and minimizing phase noise. ### 1.2 Industry Applications *    Consumer Electronics : Smartphones, tablets, wearables, digital cameras, wireless peripherals. ### 1.3 Practical Advantages and Limitations  Advantages:   Limitations:  --- ## 2. Design Considerations ### 2.1 Common Design Pitfalls and Solutions *    Pitfall 1: Insufficient Input/Output Capacitance or Wrong Type.  |
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