Product category:
Power Supply ICs and Controllers
News Release from: Allegro MicroSystems Europe | Subject: A8698 and A8697
Edited by the Electronicstalk Editorial
Team on 03 January 2007
Regulator ICs integrate power DMOS
switches
Constant-off-time current-mode step-down regulators are targeted at general-purpose applications requiring an 8 to 25V input voltage rating and 3 or 4A output current.
The A8698 and A8697 from Allegro MicroSystems Europe are the latest additions to the company's range of step-down regulator ICs The two new devices are constant-off-time current mode step-down regulators targeted at general-purpose applications requiring an 8 to 25V input voltage rating and 3A (A8698) or 4A (A8697) output current
This article was originally published on Electronicstalk on 30 Aug 2000 at 8.00am (UK)
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The regulated voltage is set by external resistors to output voltages as low as 0.8V, and the off time can also be set with an external resistor, allowing flexibility in inductor selection.
These regulator ICs 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 effort.
A logic-level enable pin allows the device to be shut down and put into a low quiescent current mode for power sensitive applications.
The A8698 and A8697 can be used as general-purpose buck regulators in a wide variety of applications.
The 25V input range makes these new devices ideal for consumer electronics and industrial applications where 12 to 25V input voltages may occur.
Both devices (A8698 and A8697) are supplied in a low-profile 8-lead SOIC with exposed pad (package LJ).
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