TPS82085SILR - 3A Step-Down Converter Module | Texas Instruments
MPN: TPS82085SILR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.14 | $8.14 |
| 10 | $7.32 | $73.20 |
| 100 | $6.51 | $651.00 |
| 500 | $5.86 | $2,930.00 |
| 1,000 | $5.21 | $5,210.00 |
Drop-in alternatives for TPS82085SILR 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:
TPS82085SILT
β Drop-Inπ Reference alternative (not in catalog)
TPS82084SILR
β Drop-Inπ Reference alternative (not in catalog)
TPS82084SILT
β Drop-Inπ Reference alternative (not in catalog)
TPS82085SILR
β Drop-Inβ In Stock
$5.21 / Unit
View Datasheet βOKR-T/1.5-W12-C
β Drop-Inπ Reference alternative (not in catalog)
TPS82085SILR Maximum Ratings & Electrical Characteristics
| Output Type | Adjustable |
| Output Voltage Range | 0.8 V to 6 V |
| Maximum Output Current | 3 A |
| Input Voltage Range | 2.5 V to 6 V |
| Switching Frequency | 2.8 MHz |
| Efficiency | Up to 95% |
| Package | 8-uSiP (MicroSiP) |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Mounting Type | Surface Mount |
| Integrated Inductor | Yes |
| Enable Pin | Yes |
| Power Good Pin | Yes |
| Soft Start | Integrated |
| Protection Features | Over-temperature, Hiccup short-circuit |
| RoHS Status | Compliant |
TPS82085SILR Pin Configuration
| Pin 1 | VIN β Input voltage supply |
| Pin 2 | GND β Ground |
| Pin 3 | EN β Enable pin (active high) |
| Pin 4 | PG β Power good indicator (open-drain) |
| Pin 5 | VOUT β Output voltage |
| Pin 6 | VOUT β Output voltage (connected to pin 5) |
| Pin 7 | GND β Ground (exposed pad) |
| Pin 8 | GND β 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
TPS82085SILR is suitable for 6 applications: FPGA Power Supply, Portable Devices, Industrial Automation, Networking Equipment, Test and Measurement, LED Lighting.
FPGA Power Supply
The TPS82085SILR provides a compact, high-efficiency solution for powering FPGAs. With 3A output and adjustable voltage down to 0.8V, it can supply core and I/O rails. The integrated inductor saves PCB space, and the high switching frequency allows small external components. The EN and PG pins enable proper sequencing, which is critical for FPGA power-up. Efficiency up to 95% reduces heat generation, and the wide input range supports various system rails.
Recommended
Portable Devices
In battery-powered portable devices, the TPS82085SILR efficiently steps down battery voltage to core logic levels. Its high efficiency extends battery life, and the small MicroSiP package fits tight layouts. The 2.5V to 6V input range covers single-cell Li-ion and 5V USB supplies. The integrated soft-start prevents inrush current, and the PG pin can signal a host controller. This module is ideal for smartphones, wearables, and handheld instruments.
Recommended
Industrial Automation
The TPS82085SILR is well-suited for industrial automation systems that require reliable, efficient power conversion. Its wide operating temperature range (-40Β°C to +125Β°C) ensures performance in harsh environments. The module's robust protection features, including over-temperature and short-circuit protection, enhance system reliability. The high switching frequency reduces external component size, and the integrated inductor simplifies PCB layout. It can power sensors, microcontrollers, and communication interfaces.
Recommended
Networking Equipment
Networking equipment such as routers and switches require multiple voltage rails for processors, memory, and I/O. The TPS82085SILR provides a compact, efficient solution for point-of-load regulation. Its 3A output can power high-current digital loads, and the adjustable output voltage allows customization. The EN and PG pins facilitate power sequencing, which is essential for complex systems. The high efficiency reduces thermal stress, and the small package saves board space in dense designs.
Recommended
Test and Measurement
In test and measurement equipment, clean and stable power supplies are critical for accurate measurements. The TPS82085SILR offers low output ripple and high PSRR, ensuring minimal noise on the output. The adjustable output voltage allows precise setting for various test circuits. The module's small size and integrated inductor reduce EMI, which is important in sensitive measurement environments. The wide input range and high efficiency make it a versatile choice for bench instruments.
Recommended
LED Lighting
The TPS82085SILR can be used in LED lighting applications to step down a higher voltage to drive LED strings. Its high efficiency reduces power loss, and the adjustable output voltage allows precise current control when used with a constant-current circuit. The small package is suitable for compact lighting modules. The module's protection features ensure reliable operation, and the wide input range accommodates various power sources. It is ideal for portable and industrial lighting.
Recommended
Recommended Products Summary
Engineering reference data for TPS82085SILR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS82085SILT | TPS82084SILR | TPS82084SILT | OKR-T/1.5-W12-C |
|---|---|---|---|---|---|
| Package | 8-uSiP | 8-uSiP | 8-uSiP | 8-uSiP | 8-uSiP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Murata |
| Output Current | 3 A | 3 A | 2 A | 2 A | 1.5 A |
| Input Voltage Range | 2.5V to 6V | 2.5V to 6V | 2.5V to 6V | 2.5V to 6V | [DATA_NEEDED] |
| Output Voltage Range | 0.8V to 6V | 0.8V to 6V | 0.8V to 6V | 0.8V to 6V | [DATA_NEEDED] |
| Switching Frequency | 2.8 MHz | 2.8 MHz | 2.8 MHz | 2.8 MHz | [DATA_NEEDED] |
| Enable Pin | Yes | Yes | Yes | Yes | [DATA_NEEDED] |
| Power Good Pin | Yes | Yes | Yes | Yes | [DATA_NEEDED] |
Key Differentiators
- Integrated inductor reduces solution size (vs TPS54202DDCR)
- Higher output current than TPS82084 (vs TPS82084SILR)
- High efficiency up to 95% (vs OKR-T/1.5-W12-C)
Design Notes
Place input and output capacitors as close to the module pins as possible. Use low-ESR ceramic capacitors, typically 10uF for input and 22uF for output. The high switching frequency (2.8MHz) requires careful layout to minimize parasitic inductance. Refer to the TI application note for recommended layout guidelines.
The exposed pad on the bottom of the MicroSiP package must be soldered to a large copper area on the PCB to ensure adequate heat dissipation. For high load currents, consider adding thermal vias to improve thermal conductivity to other layers. The operating temperature range is -40Β°C to +125Β°C, so ensure the junction temperature stays within limits.
Do not exceed the maximum input voltage of 6V. Ensure the output voltage is set correctly using the external resistor divider. The EN pin should not be left floating; tie it to VIN if not used. The PG pin is open-drain and requires a pull-up resistor. Verify the inductor saturation current rating for your application.
Compliance Information
RoHS compliant per TI product page. Other compliance data not specified in provided sources.
