意法半导体的单片式降压（降压）转换器IC具有高达61 V的输入电压能力，以很高的开关频率实现了高达4 A的输出电流。这一全面的IC产品系列包括可满足每一种市场需求的高度专业化产品：
38 V 1.5 A step-down converter with low quiescent current
The new L6981 is an easy-to-use regulator delivering high efficiency capability across all loads. The wide input voltage range (3.5 V - 38V) makes it the ideal solution for 24 V industrial bus-powered systems, HVAC power supplies, battery-powered equipment, decentralized intelligent nodes and always-on devices like smart sensors.
Housed in an SO8 package , the L6981 is based on peak current mode architecture with internal compensation to help reduce the overall size and complexity of the end-product designs.
New 400 mA synchronous buck converters, with nano-quiescent current and very high efficiency, push performance beyond limits
Boasting a quiescent current of only 500 nA, ST’s miniaturized ST1PS01 and ST1PS02 step-down converters with digital voltage selection specifically address battery-powered and energy-harvesting applications, thanks also to their high efficiency over a wide range of operating conditions.
The integrated power switch and compensation network allow this new generation of step-down converters to work with only just a few external components.
Evaluation boards are available for both products, to support developers in their designs.
New 61 V, 3 A step-down switching regulator for automotive application
Housed in a HTSSOP16-package, the A7987 is a 3 A step-down switching regulator with a wide input-voltage range, making it suitable for 24 V battery-powered applications.
Specifically recommended to design flexible and robust solutions, the A7987 also offers a set of additional functionalities including adjustable current limit, synchronization with a 180° phase shift, and power sequencing.
These key features ensure flexible and stable performance when several voltage rails are powered up in automotive applications such as body infotainment and telematics.
Large selection of step-down DC-DC regulators with synchronous rectification
In the quest for higher efficiency and compact form factor in their DC-DC supply designs, engineers now have a few more allies: the L6985F, L6986F and L6986 step-down DC-DC regulators with synchronous rectification and an output current of 0.5 A, 1,5 A and 2 A respectively.
Based on a peak current mode architecture with a p-channel power MOSFET, they feature a selectable low-consumption-mode (LCM burst mode) to increase efficiency at light load, and a low-noise-mode (LNM with fixed PWM switching frequency) for noise-sensitive designs.
An easy-to-use evaluation board (STEVAL-ISA156V1) based on the L6986 regulator is available to help you configure and evaluate application parameters so you can reach higher efficiency, higher power density and lower standby power designs.