LX8819-33CDT数据手册Microchip中文资料规格书

描述 Description

The LX8819 is a dual channel positive-voltage linear regulator. This dual regulator has one fixed output coupled with an adjustable output. Each channel features low dropout and high accuracy. The LX8819 provides designers with a flexible power management solution, minimal printed circuit board area and shorter design cycles. Each channel can supply up to one amp independently with a regulator design optimized for system efficiency by consuming minimal ground current while directing quiescent current to the load. The LX8819 features on-chip trimming of the internal voltage reference enabling precise output voltages, typically ±1% of it’s specified value, while the BiPolar output transistor has a low dropout voltage even at full output current (VDO < 1.25V typical @ 1A). Thermal and Short Circuit Current Protection are integrated on-chip and operate independently for each regulator output. The LX8819 regulator is stable with a low-value output capacitor, typically 2.2µF on the outputs, allowing designers flexibility in external component selection. Microsemi’s S-PAK and D-PAK power packages enable maximum power dissipation and ease of assembly using surface mount technology.FeaturesTwo Independent Regulated OutputsAccurate Output Voltages Typical Dropout of 1.25V at 1A and 1.1V at 500mAIndependent Thermal and Current Limit ProtectionLow Profile 5 Lead SMT Power PackageLow Tolerance Load RegulationWide DC Supply Voltage of 3.5V to 10VLoop Stability Independent of Output Capacitor Type