描述 Description

The BL8083 is a power management unit (PMU), with 1 synchronous 18V Buck and 1 CMOS 6V lowdropout regulator that delivers a maximum current of 2A for Buck’s output and a maximum current of 1.5A for LDO’s output. The synchronous buck is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 2A of output current. It is a fully integrated, high-efficiency synchronous rectified step-down converter. It operates at high efficiency over a wide output current load range. It offers PWM switching control, which allows a high efficiency over the wider range of the load. The LDO is a low-dropout regulator that delivers a maximum current of 1.5A output. Typical dropout voltage at 1A load current is 0.3V. It has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. The output accuracy is set within 2% by trimming. Typical LDO output voltage: VOUT=3.3V. Other fixed voltage can be provided in the range of 1.2V~5V every 0.1V step. It also can be customized on command. LDO can also work under a wide input voltage ranging from 2V to 6V. They can provide foldback short-circuit protection and output current limit function. BL8083 is available in lead (Pb)-free DFN2X3-8 (with exposed pad for heat dissipation) package.

特性 Features

·High Efficiency : Up to 96%
·Capable of Delivering 2A
·500KHz Frequency Operation
·No External Schottky Diode Needed
·4.2V to 18V Input Voltage Range
·0.8V Reference
·Logic Control Shutdown (IQ