Step Down Regulators suit general purpose applications.
Press Release Summary:
Including integrated power DMOS switch, Models A8698 and A8697 are targeted at applications requiring 8-25 V input voltage rating and 3 A (A8698) or 4 A (A8697) output current. Regulation voltage is set by external resistors to output voltages as low as 0.8 V. They feature internal compensation and logic level enable pin which can shut down device and put it into low quiescent current mode for power sensitive applications.
Original Press Release:
Allegro Announces Two New 3 to 4 Amp Step-Down Regulators
General-Purpose Buck Regulators For a Wide Variety of Applications
Worcester, MA, November 3, 2006 - Allegro expands their current family of step-down regulators by adding two new devices targeted at applications requiring an 8 V to 25 V input voltage rating and 3 A (A8698) or 4 A (A8697) output current. Allegro's A8698 and A8697 can be used as general-purpose buck regulators in a wide variety of applications. The 25 V input range makes these new devices ideal for consumer electronics and industrial applications where 12 V to 25 V input voltages may occur.
Allegro's A8698 and A8697 are constant off-time current mode step-down regulators with wide input voltage ranges. Regulation voltage is set by external resistors, to output voltages as low as 0.8V.
These parts include an integrated power DMOS switch to reduce the total solution footprint. They also feature internal compensation, allowing users to design stable regulators with minimal design efforts. The off-time can be set with an external resistor, allowing flexibility in inductor selection.
Additionally, these devices have a logic level enable pin which can shut the device down and put it into a low quiescent current mode for power sensitive applications.
Both devices (A8698 and A8697) are supplied in a low-profile 8-lead SOIC with exposed pad (package LJ). In quantities of 1,000, the A8698 is priced at $0.66 and the A8697 is priced at $0.72, and both parts have a 12-week lead-time to market.
About Allegro
Allegro MicroSystems, Inc. is a global leader in the development, manufacture and marketing of high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro's innovative, system-level solutions serve high-growth applications within the automotive, computer/office automation, industrial, consumer and communications markets, while our leading-edge product and processes reinforce our expertise in motor driver and power management technology. In addition, we also hold leading positions within printer, scanner, copier and portable device (e.g. cellular phones) applications. With more than 2,400 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro can be found at www.allegromicro.com.
