مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) رگولاتور ولتاژ خطی و کم‌افت (ال دی او)

Product Attributes

Introduction

The LP3992 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3992 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. The LP3992 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3992 consumes less than 0.01uA in shutdown mode and has fast turn-on time less than 50uS. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. It is available in the 5-lead of SOT23-5 and TSOT23-5 packages.

Features

• Ultra-Low-Noise for RF Application
• 2.5V - 5.5V Input Voltage Range
• Low Dropout: 220mV @ 300mA
• 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V and 5V Fixed
• 300mA Output Current
• High PSSR: -76dB at 1KHz
• <0.01uA Standby Current When Shutdown
• Available in SOT23-5 and TSOT23-5 Package
• TTL-Logic-Controlled Shutdown Input
• Ultra-Fast Response in Line/Load transient
• Current Limiting and Thermal Shutdown Protection
• Quick start-up (typically 50uS)

Applications

• Portable Media Players/MP3 players
• Cellular and Smart mobile phone
• LCD
• DSC
• Sensor
• Wireless Card