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Datasheets:
A8698: Wide Input Voltage 3.0 A Step Down Regulator (PDF)
Selection Guides:
Power Management ICs,
Power Management ICs: Switching Regulators
Technical Publications:
A8698 and A8697: 25 V Input, 3 or 4 Amp Output Step-Down Regulators (PDF)
Press Releases:
A8697 and A8698: Allegro Announces Two New 3 To 4 Amp Step-Down Regulators
Design Support Tools:
A8698 Product Evaluation Kit
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A8698
Wide Input Voltage 3.0 A Step Down Regulator
Features
- 8 to 25 V input range
- Integrated DMOS switch
- Adjustable fixed off-time
- Highly efficient
- Adjustable 0.8 to 20 V output
Description
The A8698 is a constant off-time current mode step-down regulator with a wide input voltage range. Regulation voltage is set by external resistors, to output voltages as low as 0.8 V.
The A8698 includes an integrated power DMOS switch to reduce the total solution footprint. It also features 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, the A8698 has a logic level enable pin which can shut the device down and put it into a low quiescent current mode for power sensitive applications.
The A8698 is supplied in a low-profile 8-lead SOIC with exposed pad (package LJ). Applications include:
- Applications with 8 to 25 V input
- Consumer electronics, networking equipment
- 12 V lighter-powered applications (portable DVD, etc.)
- Point of Sale (POS) applications
Gerber Files
- A8698 Gerber File (ZIP)
Gerber files are for reference only. Users should optimize the PCB layout and components for their specific application. Evaluation Board for A8698 is available upon request. Please contact your local representative.
Functional Block Diagram
| Part Number | Package Type | RoHS Compliant |
Part Composition/ RoHS Data |
Temperature | Comments | Samples | Distributor Stock |
|---|---|---|---|---|---|---|---|
| A8698ELJTR-T | 8-lead SOIC | Yes | view data | -40 °C to 85 °C | new |
Contact Local Sales Representative or check distributor stock |
|
| APEK8698ELJ-01-T | DEMO BOARD | No | -- | -40 °C to 85 °C | A8698 Product Evaluation Kit |
Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.