LMR16020PDDA.B中文资料德州仪器数据手册PDF规格书

1 Features

1• 4.3 V to 60 V Input Range

• 2 A Continuous Output Current

• Ultra-low 40 μA Operating Quiescent Current

• 155 mΩ High-Side MOSFET

• Current Mode Control

• Adjustable Switching Frequency from 200 kHz to

2.5 MHz

• Frequency Synchronization to External Clock

• Internal Compensation for Ease of Use

• High Duty Cycle Operation Supported

• Precision Enable Input

• Power-Good Flag

• 1 μA Shutdown Current

• Thermal, Overvoltage and Short Protection

• 8-Pin HSOIC with PowerPAD™ Package

2 Applications

• Automotive Battery Regulation

• Industrial Power Supplies

• Telecom and Datacom Systems

• General Purpose Wide Vin Regulation

3 Description

The LMR16020 is a 60 V, 2 A SIMPLE SWITCHER®

step down regulator with an integrated high-side

MOSFET. With a wide input range from 4.3 V to 60

V, it’s suitable for various applications from industrial

to automotive for power conditioning from

unregulated sources. The regulator’s quiescent

current is 40 μA in Sleep-mode, which is suitable for

battery powered systems. An ultra-low 1 μA current in

shutdown mode can further prolong battery life. A

wide adjustable switching frequency range allows

either efficiency or external component size to be

optimized. Internal loop compensation means that the

user is free from the tedious task of loop

compensation design. This also minimizes the

external components of the device. A precision

enable input allows simplification of regulator control

and system power sequencing. The device also has

built-in protection features such as cycle-by-cycle

current limit, thermal sensing and shutdown due to

excessive power dissipation, and output overvoltage

protection.

The LMR16020 is available in an 8-pin HSOIC

package with exposed pad for low thermal resistance.