ACT8311
5 V, 1.5 A PWM Step-Down DC/DC Converter
Qorvo's ACT8311 is a current-mode, fixed-frequency PWM, synchronous step-down DC/DC converter that is capable of delivering 1.5 A with efficiency of up to 95%. This device operates with a fixed frequency of 1.35 MHz, minimizing noise in sensitive equipment as well as optimizing both efficiency and component size and cost.
This device features a very low-resistance power MOSFET and 100% duty cycle operation, making it an ideal choice for portable applications requiring a 3.0 V or 3.3 V rail to be generated from a Li+ battery. ACT8311 is capable of supplying up to 1.5 A of output current. It also has adjustable output voltages that are programmable down to 1.2 V.
Contact Qorvo for custom fixed output voltage availability.
ACT8311 is available in a 3 x 3 mm 8PIN TDFN33-8 package.
End of Life announced October 30, 2020 (PCN 20-0175).
Last Time Buy: May 28, 2021
Contact your local sales representative for assistance.
Key Features
- Multiple patents pending
- Up to 95% high efficiency
- Up to 1.5 A guaranteed output current (ACT8311)
- 1.35 MHz constant frequency operation
- 100% duty cycle low-dropout operation
- 0.1 µA shutdown current
- Enable/disable control
- Minimal external components
- Internal synchronous rectifier eliminates Schottky diode
Typical Applications
- Wireless Handhelds
- Portable Devices
- GPS / PND equipment
Parameters
Technical Documents
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