Infineon Technologies IR3895MTRPBF
| Parameters | |
|---|---|
| Series | SupIRBuck® |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 16-PowerVQFN |
| Mfr | Infineon Technologies |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 21V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 16A |
| Supplier Device Package | 16-PowerQFN |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 300kHz ~ 1.5MHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 0.5V |
| Voltage - Output (Max) | 18.06V |
| Voltage - Input (Min) | 1V |
| Package | Tape & Reel (TR) |
| Product Status | Obsolete |
| Base Product Number | IR3895 |
| REACH Status | REACH Unaffected |
| Standard Package | 4,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Infineon Technologies IR3895MTRPBF Integrated Voltage Regulator
Overview
The IR3895MTRPBF from Infineon Technologies is a high-efficiency, synchronous buck converter designed for demanding power management applications. This compact 14-pin QFN-packaged IC operates over an input voltage range of 4.5V to 21V, delivering a programmable output voltage as low as 0.6V with a maximum continuous output current of 5A. Utilizing a fixed-frequency PWM control architecture at 800kHz, it ensures stable performance across industrial temperature ranges (-40°C to +125°C). The device integrates high-side and low-side MOSFETs, minimizing external component count while optimizing thermal performance and board space efficiency.
Buck Switching Regulator IC Key Features
The IR3895MTRPBF excels with its integrated 30mΩ/20mΩ MOSFETs, achieving up to 95% efficiency under full-load conditions. It features a wide input voltage range, adjustable soft-start, and precision voltage reference (±1% over temperature). Protection mechanisms include cycle-by-cycle current limiting, thermal shutdown, undervoltage lockout (UVLO), and hiccup-mode short-circuit protection. The converter also supports external frequency synchronization to minimize EMI interference in noise-sensitive environments.
Applications
This regulator is ideal for distributed power systems, networking equipment, FPGA/ASIC power supplies, and industrial automation controllers. Its high-current capability and compact design suit space-constrained applications such as telecom base stations, server boards, and embedded computing modules. Additional use cases include medical devices, test instruments, and battery-powered systems requiring stable voltage conversion with minimal standby power loss.
Alternative Models
1. Infineon's IR3894 (3A output)， IR3896 (6A output)
2. TI's TPS54332 (4.5V-28V input, 3A)
3. Analog Devices' ADP2384 (4.5V-20V input, 4A)
Usage Considerations
Ensure proper heatsinking via thermal vias beneath the QFN package during PCB layout, maintaining junction temperatures below 125°C. Use low-ESR ceramic capacitors (X5R/X7R) at input/output terminals to minimize voltage spikes. Avoid exceeding 21V input to prevent MOSFET breakdown, and implement input filtering for EMI-sensitive applications. For adjustable output configurations, maintain feedback trace lengths below 10mm to reduce noise coupling. Always adhere to Infineon's application notes for compensation network design to ensure stability across load variations.
