ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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LMR14020SDDAR LMR14030SDDAR LMR14050SDDAR Power Regulator IC Switching Voltage Regulators 40V Buck Regulator
1 Features
2 A Continuous Output Current
Ultra-low 40 μA Operating Quiescent Current
90 mΩ High-Side MOSFET
Minimum Switch-On Time: 75 ns
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
1 μA Shutdown Current
External Soft-start
Thermal, Overvoltage and Short Protection
8-Pin HSOIC with PowerPADTM Package
2 Applications
Automotive Battery Regulation
Industrial Power Supplies
Telecom and Datacom Systems
Battery Powered System
3 Description
The LMR14020 LMR14030SDDAR LMR14050SDDAR is a 40 V, 2 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 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.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LMR14020SDDA |
HSOIC-8 |
4.89 mm x 3.90 mm |