FDS6670AS

FDS6670AS is a dual N-channel MOSFET device from Fairchild/On Semiconductor. It packs two N‑channel enhancement MOSFETs in a single compact package, designed for power-switching in modern switching regulators and load-switch circuits. The part is chosen for low on-resistance and reasonable gate charge, enabling compact, efficient DC–DC converters, synchronous rectification, high/low-side switches, and motor-drive interfaces. Exact electrical specs (Vds, Id, Rds(on)) depend on the revision; please consult the datasheet for the precise numbers and recommended operating conditions. The “AS” suffix denotes a specific variant (often packaging or lead-free). In short: a space- and cost-saving dual MOSFET solution suitable for power-management designs—verify the exact ratings for your application.

Here are the typical features of FDS6670AS:
- Dual N-channel enhancement-mode power MOSFETs in one 8-pin package
- Low on-resistance (Rds(on)) for high-efficiency switching
- Logic-level gate drive (fully on with standard gate voltages)
- Low gate charge and input capacitance for fast switching
- High peak current capability and compact footprint
- Built-in body diodes with rugged avalanche energy rating
- Low parasitic inductance, suitable for synchronous buck/boost DC-DC converters
- RoHS-compliant; variants may be available for automotive use
- Applications: DC-DC regulators, motor drive, load switching, power-management circuits
For exact voltage rating, current capability, and thermal characteristics, consult the specific datasheet for your part variant.

Pin count: 6 pins.
Function: Dual N-channel MOSFETs (two independent N-channel enhancement-mode MOSFET devices in one SOT-23-6 package).

- Manufacturer: Fairchild Semiconductor (now part of ON Semiconductor).
- What kind of company: A global semiconductor company that designs and manufactures electronic components, including discrete devices (MOSFETs, diodes) and integrated circuits.

FDS6670AS is a dual N‑channel enhancement MOSFET. Common applications include:
- Power management: DC-DC converters (buck/boost) and synchronous rectification
- Switching networks: high-side/low-side switches in portable/battery-powered gear
- Motor control: H-bridge/half-bridge drivers for small DC motors or stepper motors
- LED drivers and backlight power supplies
- General load switching and protection in notebooks, tablets, and embedded systems
- Any compact switch-mode or linear regulator where low RDS(on) and fast switching are beneficial

SC-70-6 package (6‑pin small outline, also referred to as SC‑74A).