EUP3453WIR1 3A buck converter car charger chip SMD SOP8

Description

High-Efficiency 3A DC-DC Step-Down Regulator (40V Input) – EUP3453WIR1

The EUP3453WIR1 is a robust, current-mode step-down (buck) switching regulator IC, designed to efficiently convert higher input voltages into a lower, stable output voltage. Capable of delivering up to 3A of continuous current, it’s an excellent choice for demanding applications requiring reliable power conversion with excellent line and load regulation.

Operating over a wide input voltage range from 4.75V up to 40V, the EUP3453WIR1 offers significant flexibility for various power sources, including automotive batteries and industrial supplies. Its adjustable output voltage (set via external resistors) from 0.92V to 15V allows precise power delivery tailored to your specific load requirements.

Key Features & Benefits:

• Wide Input Voltage Range (4.75V – 40V): Benefit: Provides versatility for use in diverse applications, including automotive (12V/24V systems) and industrial power supplies.

• High Output Current (Up to 3A): Benefit: Capable of powering demanding loads like high-power LEDs, charging circuits, and embedded systems.

• Adjustable Output Voltage (0.92V – 15V): Benefit: Allows customization of the output voltage using simple external resistors to meet specific application needs.

• Programmable Current Limit (CC Mode): Benefit: Protects both the power supply and the load by entering a constant current mode when the programmed threshold is reached, ideal for battery charging.

• Programmable Over Voltage Protection (OVP): Benefit: Adds an extra layer of safety by shutting down switching if the output voltage exceeds a user-defined threshold.

• High Efficiency (Up to 95%): Benefit: Minimizes power loss and heat generation, crucial for compact designs and battery-powered devices.

• Integrated Protection Features: Includes secondary cycle-by-cycle current limiting, thermal shutdown, and input undervoltage lockout (UVLO). Benefit: Enhances overall system reliability and protects the IC from fault conditions.

• Internal Soft-Start: Benefit: Minimizes inrush current during startup, reducing stress on input components and preventing output voltage overshoot.

Target Applications:

The EUP3453WIR1 is well-suited for:

• High-power Car Chargers and USB Adapters

• Powering Rechargeable Portable Electronics

• Distributed Power Systems and Point-of-Load (POL) Regulation

• Pre-regulation for Linear Regulators requiring higher efficiency

• General Purpose DC-DC Buck Conversion

Specifications:

• Part Number: EUP3453WIR1

• Type: Current-Mode Step-Down (Buck) Switching Regulator

• Input Voltage: 4.75V to 40V

• Output Voltage: 0.92V to 15V (Adjustable)

• Max Continuous Output Current: 3A

• Switching Frequency: 200kHz (Fixed)

• Internal Switch: 0.1Ω DMOS

• Shutdown Current: ~3µA

• Protection: Programmable CC, Programmable OVP, Cycle-by-Cycle Current Limit, Thermal Shutdown, UVLO

• Package: SOP-8 (EP – Exposed Pad recommended for thermal performance)

• Compliance: RoHS Compliant, Lead(Pb)-Free, Halogen-Free

Integrate the reliable and efficient EUP3453WIR1 buck converter into your next power supply design for robust performance and versatile protection features.

EUP3453WIR1 buck converter Datasheet