NCP3020ADR2G

NCP3020ADR2G is ON Semiconductor’s buck (step-down) DC-DC regulator in the NCP3020 family. It integrates a high-side switch and control circuitry to convert a higher input voltage down to a stable, lower output for digital logic.
Key points:
- Architecture: current‑mode PWM switching regulator with enable/soft‑start and feedback control.
- Protections: undervoltage lockout, overcurrent/cathode protection, and thermal shutdown.
- Interface: external feedback network sets the output voltage; enable pin to turn the regulator on/off.
- Packaging: available in the ADR2G package/reel as per ON Semiconductor naming.
- Applications: point‑of‑load supplies for portable/embedded systems, automotive electronics, and other DC‑DC power needs.
How to use:
- Connect Vin, Vo, a feedback resistor network, inductor, and output capacitor per the datasheet.
- Ensure proper layout and thermal considerations for reliability.
For exact electrical specs (Vin range, output voltage range, current capability, pinout, and recommended PCB layout), consult the NCP3020ADR2G datasheet.

Here are typical features of the NCP3020ADR2G (ON Semiconductor) buck regulator family:
- High-efficiency step-down (buck) regulator with current‑mode control
- Wide input voltage range suitable for battery, automotive, and industrial apps
- Fixed and adjustable output versions; external feedback options
- Enable/shutdown input to disable/enable the device
- Protective features: cycle-by-cycle overcurrent protection and thermal shutdown
- Undervoltage lockout for reliable startup
- Soft-start to limit inrush and output overshoot
- Optional frequency control or fixed switching frequency
- Small footprint 8-pin package (SOP-8/DFN options)
Note: exact specifications (voltage ranges, current rating, package, and options) are in the official datasheet.

- Pin count: 5 pins (SOT-23-5 package)
- Function: NCP3020ADR2G is a step-down (buck) switching regulator. Pinout typically:
- Pin 1: EN – Enable input
- Pin 2: GND – Ground
- Pin 3: FB – Feedback
- Pin 4: VIN – Input supply
- Pin 5: LX – Switch/LX node (to inductor/diode network)
LX is the switching output that connects to the external inductor and diode to regulate the output.

- Manufacturer: ON Semiconductor (onsemi).
- What kind of company: A global semiconductor company that designs and manufactures energy-efficient integrated circuits and discrete devices (power management, analog, sensors, etc.) for automotive, industrial, and consumer markets; headquartered in Phoenix, Arizona, USA (publicly traded on Nasdaq, ticker ON).

Applications: high-efficiency step-down (buck) regulator for point-of-load power supplies. Suitable for powering CPUs/GPUs/ASICs, FPGAs, microcontrollers, and DSPs in desktop, server, embedded, and telecom equipment; portable and battery-powered devices; automotive 12V systems; consumer electronics such as set-top boxes and game consoles; industrial equipment requiring compact, efficient power conversion.

NCP3020ADR2G is in an 8-pin small-outline package (SOIC, RoHS) – specifically an 8-pin Narrow-Body SOIC.