RHP50000 - 12.5A Silent Switcher 2 Step-Down | Analog Devices
MPN: RHP50000 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.5 | $5,500.00 |
Drop-in alternatives for RHP50000 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
LTC3310S
β Drop-Inπ Reference alternative (not in catalog)
RHP50000 Maximum Ratings & Electrical Characteristics
| Output Type | Adjustable |
| Output Voltage Range | 0.5V to [DATA_NEEDED: max output voltage] |
| Maximum Output Current | 12.5A |
| Input Voltage Range | 2.25V to 5.5V |
| Switching Frequency | Up to 5MHz |
| Architecture | Silent Switcher 2 |
| Synchronous Rectification | Yes |
| Package | 18-TFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] |
| Enable Pin | Yes |
| Soft-Start | Yes |
| Power Good | Yes |
| RoHS Status | Compliant |
| EMI Reduction | Integrated hot loop bypass capacitors |
RHP50000 Pin Configuration
| Pin 1 | VIN β Input supply voltage |
| Pin 2 | VIN β Input supply voltage |
| Pin 3 | SW β Switch node |
| Pin 4 | SW β Switch node |
| Pin 5 | GND β Power ground |
| Pin 6 | GND β Power ground |
| Pin 7 | VOUT β Output voltage sense |
| Pin 8 | VOUT β Output voltage sense |
| Pin 9 | AGND β Analog ground |
| Pin 10 | EN β Enable pin |
| Pin 11 | SS β Soft-start programming |
| Pin 12 | PG β Power good output |
| Pin 13 | FB β Feedback pin |
| Pin 14 | COMP β Compensation pin |
| Pin 15 | RT β Switching frequency programming |
| Pin 16 | SYNC β External clock synchronization |
| Pin 17 | MODE β Mode selection |
| Pin 18 | GND β Exposed pad, ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
RHP50000 is suitable for 6 applications: FPGA Power Supply, ASIC Power Supply, Point-of-Load (POL) Converter, Networking Equipment, Commercial Space Systems, Telecom Infrastructure.
FPGA Power Supply
The RHP50000 provides a high-current, low-voltage rail for FPGAs, such as Xilinx UltraScale+ devices. Its 12.5A output and adjustable voltage down to 0.5V make it ideal for core and auxiliary rails. The Silent Switcher 2 architecture minimizes EMI, which is critical in dense digital systems. With switching frequencies up to 5MHz, it allows for small external components, saving board space. The device's fast transient response ensures stable operation during dynamic load changes, which is common in FPGA applications. Its enable and power-good features facilitate power sequencing, ensuring reliable startup and shutdown. The wide input range (2.25V to 5.5V) allows it to be powered from 3.3V or 5V intermediate buses. Overall, the RHP50000 simplifies the power design for high-performance FPGAs, reducing both size and EMI.
Recommended
ASIC Power Supply
ASICs often require precise, high-current power rails with low noise. The RHP50000 delivers up to 12.5A with an adjustable output down to 0.5V, making it suitable for powering the core of custom ASICs. Its high switching frequency (up to 5MHz) enables the use of small inductors and capacitors, reducing the overall solution size. The Silent Switcher 2 architecture ensures low EMI, which is essential for maintaining signal integrity in mixed-signal systems. The device's fast transient response helps maintain voltage regulation during sudden load changes, which is common in ASIC operation. The integrated protection features, such as overcurrent and thermal shutdown, enhance system reliability. The enable pin allows for controlled power-up sequencing, which is critical for ASICs with multiple power domains. Overall, the RHP50000 provides a compact, efficient, and low-noise power solution for ASIC applications.
Recommended
Point-of-Load (POL) Converter
The RHP50000 is an excellent choice for point-of-load (POL) converters in networking, telecom, and industrial equipment. It can step down a 5V or 3.3V rail to a lower voltage, such as 1.2V or 0.9V, with high efficiency. Its 12.5A output current is sufficient for powering multiple loads or a single high-current load. The high switching frequency (up to 5MHz) allows for a compact design, which is beneficial in space-constrained applications. The Silent Switcher 2 architecture reduces EMI, making it easier to pass EMC testing. The device's adjustable output voltage and enable pin provide flexibility in power sequencing. The integrated soft-start prevents inrush current, protecting the input supply. With its wide input range and robust protection features, the RHP50000 is a reliable POL solution for various industrial applications.
Recommended
Networking Equipment
In networking equipment such as routers and switches, high-current, low-voltage rails are needed for processors and ASICs. The RHP50000 provides up to 12.5A with low EMI, which is crucial for maintaining signal integrity in high-speed data paths. Its high switching frequency (up to 5MHz) allows for small external components, saving board space in dense line cards. The device's fast transient response ensures stable operation during bursty network traffic. The enable and power-good features enable proper power sequencing in multi-rail systems. The wide input range (2.25V to 5.5V) allows it to be powered from standard 3.3V or 5V rails. The Silent Switcher 2 architecture simplifies PCB layout, reducing design time and cost. Overall, the RHP50000 is an ideal power solution for networking equipment, offering high performance and reliability.
Recommended
Commercial Space Systems
The RHP50000 is specifically designed for commercial space applications, where high efficiency and low EMI are critical. It can deliver up to 12.5A from a 2.25V to 5.5V input, making it suitable for powering FPGAs and processors in satellites and space probes. The Silent Switcher 2 architecture minimizes EMI, which is important for sensitive scientific instruments. The device's high switching frequency (up to 5MHz) allows for small external components, reducing weight and size, which are critical in space missions. The wide input range accommodates varying bus voltages. The device's robust protection features, including overcurrent and thermal shutdown, ensure reliable operation in harsh environments. The enable pin allows for controlled power sequencing, which is essential for complex space systems. Overall, the RHP50000 is a trusted power solution for commercial space applications.
Recommended
Telecom Infrastructure
In telecom infrastructure, such as base stations and servers, high-current, low-voltage rails are required for processors and FPGAs. The RHP50000 provides up to 12.5A with high efficiency, reducing power dissipation and cooling requirements. Its high switching frequency (up to 5MHz) allows for small inductors and capacitors, saving board space. The Silent Switcher 2 architecture ensures low EMI, which is important for co-located RF circuits. The device's fast transient response helps maintain voltage stability during load changes. The enable and power-good features enable proper power sequencing in multi-rail systems. The wide input range (2.25V to 5.5V) allows it to be powered from standard telecom rails. The device's robust protection features enhance system reliability. Overall, the RHP50000 is an excellent choice for telecom power supplies, offering high performance and compactness.
Recommended
Recommended Products Summary
Engineering reference data for RHP50000 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC3310S | LTM8065 | TPS546C23 |
|---|---|---|---|---|
| Package | 18-TFQFN | 18-TFQFN | BGA | VQFN-40 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Output Current | 12.5A | 12.5A | 5A | 35A |
| Input Voltage Range | 2.25V to 5.5V | 2.25V to 5.5V | 4V to 20V | 4.5V to 16V |
| Switching Frequency | Up to 5MHz | Up to 5MHz | Up to 2.4MHz | Up to 2MHz |
| Output Voltage Range | 0.5V to [DATA_NEEDED] | 0.5V to [DATA_NEEDED] | 0.8V to 15V | 0.6V to 5.5V |
| EMI Reduction | Silent Switcher 2 | Silent Switcher 2 | Shielded module | Standard |
| Pin Compatibility | Reference | Likely compatible | No | No |
Key Differentiators
- 12.5A output current in a small 18-TFQFN package (vs LTM8065)
- Silent Switcher 2 architecture for low EMI (vs TPS546C23)
- High switching frequency up to 5MHz (vs LTM8065)
Design Notes
For optimal EMI performance, place the input and output capacitors as close as possible to the VIN and VOUT pins. The Silent Switcher 2 architecture integrates hot loop bypass capacitors, but external capacitors are still required. Use a solid ground plane and minimize the loop area of the switching node. Follow the layout guidelines in the datasheet to achieve the best results.
The RHP50000 can dissipate significant power at high output currents. Ensure adequate thermal management by using the exposed pad connected to a large copper area on the PCB. The thermal resistance of the 18-TFQFN package is [DATA_NEEDED: thermal resistance]. For 12.5A output, calculate the power dissipation and ensure the junction temperature stays within limits.
Connect the AGND pin to the negative terminal of the output capacitor at the load to achieve good load regulation. Do not route the feedback trace near the switch node to avoid noise coupling. Use a proper compensation network as specified in the datasheet. Ensure the input voltage does not exceed the absolute maximum rating of 5.5V.
Compliance Information
RoHS compliance is indicated by the DigiKey listing. Other compliance information is not explicitly stated in the provided data.
