The IR3473MTRPBF is a highly efficient DC/DC voltage regulator designed for a wide input voltage range of 3V to 27V and an adjustable output voltage range from 0.5V to 12V. It supports a continuous load capability of up to 6A, making it suitable for various applications including notebook and desktop computers, consumer electronics, and distributed power systems. This regulator features constant on-time control, eliminating the need for external compensation loops, and offers programmable switching frequency and soft start capabilities. It includes thermal shutdown, under/over voltage fault protection, and a power good output, ensuring reliable operation. The device is packaged in a compact 4mm x 5mm QFN format, which is advantageous for space-constrained designs. The IR3473MTRPBF is particularly well-suited for battery-powered applications due to its excellent efficiency at low output currents and pre-bias startup capability. Its precision voltage reference of 0.5V with a tolerance of ±1% further enhances its reliability in critical applications.
Manufacturer: Infineon Technologies
Win Source Part Number: 776970-IR3473MTRPBF
Series: SupIRBuck
Packaging: Reel package
Operating Temperature Range: -40°C ~ 125°C (TJ)
Package: 16-PowerVQFN
Mounting: SMD
Output Type: Adjustable
Function: Step-Down
Topology: Buck
Frequency - Switching: Up to 750kHz
Number of Outputs: 1
Output Configuration: Positive
Synchronous Rectifier: Yes
Output Current: 6A
Family Name: IR3473
Output Voltage: 0.5V
Categories: Integrated Circuits (ICs)
Manufacturer Package: 16-QFN (4x5)
Output Voltage MAX: 12V
Input Voltage MIN: 3V
Voltage Input MAX: 27V
Alternative Parts (Cross-Reference): SC4521SETRT; STPRDC02TR;
Introduction Date: February 16, 2011
ECCN: EAR99
Country of Origin: Thailand
Estimated EOL Date: 2022
Popularity: Medium
Fake Threat In the Open Market: 35 pct.
Supply and Demand Status: Balance
IC REG BUCK ADJUSTABLE 6A 16QFN
Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 6A 16-PowerVFQFN
Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 6A 16-PowerVFQFN
IC REG BUCK ADJ 6A 16QFN
IC REG BUCK ADJUSTABLE 6A 16QFN
Switching Voltage Regulators 6A SupIRBuck Reg 750kHz, 3.0-27V in
| Win Source Electronics | ODG (Origin Data Global) | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | VAST STOCK CO., LIMITED | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | 776970-IR3473MTRPBF | IR3473MTRPBF | IR3473MTRPBFTR-ND | IR3473MTRPBF | IR3473MTRPBF | IR3473MTRPBF | IR3473MTRPBF |
| Product Name | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - IR3473MTRPBF | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators |
| Configuration / Function | Buck; Buck | Buck | Buck | ||||
| Output Voltage Type | Adjustable / Variable; Adjustable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable; Adjustable | Adjustable / Variable | ||
| Package Type | Other; 16-PowerVQFN | Other; 16-PowerVFQFN | Other; 16-PowerVFQFN | Other; 16-PowerVFQFN | |||
| Special Features | Multiple Outputs; Synchronous Rectification | Synchronous Rectification | |||||
| Output Voltage | 0.5000 volts | 0.5000 volts | 0.5000 to 12 volts | 0.5000 to 12 volts | 0.5000 volts |
