描述 Description

The BL8082B is a power management unit (PMU), with 1 synchronous Buck and 2 low-dropout regulators that delivers a maximum current of 1A for each individual output.
The synchronous buck is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 1.2A of output current. The device operates from an input voltage range of 2.6V to 7V and provides an output voltage from 0.6V to VIN, making the buck ideal for low voltage power conversions. Running at a fixed frequency of 1.5MHz allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. This low noise output along with its excellent efficiency achieved by the internal synchronous rectifier, making the buck an ideal green replacement for large power consuming linear regulator. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improves design reliability.
Each of the 2 LDOs is low-dropout regulator that delivers a maximum current of 1A individual output. Typical dropout voltage at 1A load current is 1.3V. The output accuracy of each channel is set within 2% by trimming.
Typical LDO output voltage: VO1=3.3V, VO2=ADJ.
Other fixed voltage (e.g 1.2V, 1.8V, 2.5V, 3.3V, 5V) or adjustable output also can be customized on command.
The LDO offers thermal shut down and current limit functions to ensure reliability of device and power system.
BL8082B is available in lead (Pb)-free DFN3X3-12 (with 2 exposed pads for heat dissipation) package.

特性 Features

·High Efficiency : Up to 97%
·Capable of Delivering 1.2A
·1.5MHz Switching Frequency
·No External Schottky Diode Needed
·Low dropout 100% Duty operation
·Internal Compensation and Soft-Start
·Current Mode control
·0.6V Reference for Low Output voltages
·Logic Control Shutdown (IQ