uP8807数据手册uPI(UBIQ)中文资料规格书

描述 Description

The uP8807 is a compact fast response low dropoutregulator specifically designed to continuously deliver upto 600mA output current. Designed with a P-channelMOSFET series pass transistor, the uP8807 yieldsextremely low dropout voltage (e.g. 300mV at 600mA)and maintains very low quiescent current (70uA).

The uP8807 does not require a bypass capacitor, henceachieving the smallest PCB area. The uP8807 is designedand optimized to work with low-value, low-cost ceramiccapacitors. Only a 1uF ceramic output capacitor is requiredfor stable operation for any load conditions.

Other features include foldback overcurrent protection,quick soft start, and over temperature protection. TheuP8807 is available in fixed output voltage from 0.8V to3.3V with 0.1V per step or as an adjustable device with a0.8V reference voltage. The device comes in variouspackages.

特性 Features

• Wide Input Voltage Range from 2.5V to 5.5V.
• Ultra Low Dropout Voltage: 300mV @ 600mA.
• Ultra Fast Response in Line/Load Transient.
• Stable with 1uF Ceramic Output Capacitor.
• Low Quiescent Current: 70uA Typical.
• Low Shutdown Current: < 1uA.
• Foldback Output Current Limit.
• High Output Accuracy
• 1.5% Initial Accuracy.
• Fixed Output Voltages: 0.8V to 3.3V.
• Adjustable Output Voltage from 0.8V to 5V.

• Over-Temperature Protection.
• RoHS Compliant and Halogen Free.

应用 Application

• Cellular and Cordless Phones.
• Bluetooth Portable Radios and Accessaries.
• Battery-Powered Equipment.
• Laptop, Palmtops, Notebook Computers.
• Hand-Held Instruments.
• PCMCIA Cards.
• Portable Information Appliances.