My Inquiry
My Account
Texas Instruments TPS56C215RNNR
- Part No.:
- TPS56C215RNNR
- Manufacturer:
- Texas Instruments
- Package:
- 18-PowerVFQFN
- Datasheet:
-
TPS56C215RNNR.pdf
- Description:
- IC REG BUCK ADJ 12A 18VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,133
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS56C215RNNR from Texas Instruments is a monolithic 12A synchronous step-down DC/DC converter with integrated 7.8mΩ high-side and 3.2mΩ low-side MOSFETs, D-CAP3™ adaptive on-time control, and 0.6V ±1% reference voltage across –40°C to 150°C junction temperature. It operates from 3.8V–17V input, delivers 0.6V–5.5V output, and supports FCCM or Eco-mode for tight ripple or high light-load efficiency - used in FPGA/ASIC core power rails in server and telecom POL systems.
For engineers reviewing the TPS56C215RNNR datasheet, TPS56C215RNNR pinout, TPS56C215RNNR application, or TPS56C215RNNR equivalent, key selection criteria include verified 12A continuous output capability, thermal performance in the 3.5mm × 3.5mm HotRod™ QFN package, selectable 400/800/1200kHz switching frequency, dual current limit options (11.5A/13.8A valley), and monotonic start-up into prebiased outputs.
Technical Context
The TPS56C215RNNR implements D-CAP3™ control with internal ramp injection and an error amplifier-enabling fast transient response without external compensation while supporting ceramic, POSCAP, and SP-CAP output capacitors. Its adaptive on-time architecture dynamically adjusts switching cycle duration based on VIN, VOUT, and selected FSW to maintain regulation under dynamic load steps.
It features dual operating modes: forced continuous conduction mode (FCCM) for <±10mV output voltage ripple at full load, and auto-skipping Eco-mode for >90% efficiency at 10mA load. Current limiting is implemented via valley-current detection with two configurable thresholds (ILIM-1: 11.5A typ; ILIM: 13.8A typ), and thermal shutdown activates at 160°C with 15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.8V to 17V - supports 5V, 12V, and 15V intermediate bus architectures without external bias. |
| Continuous Output Current | 12A - validated per TI reliability testing (100k hours @ 105°C junction), not derated peak rating. |
| Feedback Reference Voltage | 0.6V ±1% over –40°C to 150°C - enables accurate 1.0V, 1.2V, 1.8V, and 3.3V core rail generation. |
| Switching Frequency Options | 400 kHz / 800 kHz / 1200 kHz - selected via MODE pin resistor divider; determines inductor size and EMI profile. |
| Integrated MOSFET RDS(on) | 7.8mΩ (HS) / 3.2mΩ (LS) - enables >92% efficiency at 12A/1.2V out with 12V input in FCCM mode. |
| Junction Temperature Range | –40°C to 150°C - qualified for industrial and extended-temperature embedded computing applications. |
| Thermal Resistance (RθJA) | 29.5°C/W - measured on 2-layer JEDEC-standard board; enables 12A operation with minimal heatsinking. |
Pinout & Package
TPS56C215RNNR uses a thermally enhanced 18-pin VQFN-HR (HotRod™) package, 3.5mm × 3.5mm, with exposed thermal pad. Pin 1 marked by dot; top-side marking includes TI logo and date code. PGND pins (3,4,5,8,9,10) and VIN pins (2,11) are multiplexed for low-inductance power routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT (1) | High-side gate driver supply | Connect 0.1µF ceramic bootstrap capacitor between BOOT and SW; enables 100% duty-cycle capability. |
| VIN (2,11) | Main input power supply | Accepts 3.8–17V; requires local 10µF+ ceramic decoupling per VIN pin to minimize input ripple and EMI. |
| PGND (3,4,5,8,9,10) | Power ground return | Multiple low-inductance paths for high di/dt switch node currents; must connect directly to thermal pad and AGND plane. |
| SW (6,7) | Switch node | Drives external output inductor; connects to BOOT capacitor and inductor; high dv/dt node requiring tight layout. |
| AGND (12) | Analog ground reference | Reference for FB, SS, EN, MODE; tie to PGND via short, low-impedance trace near IC body. |
| FB (13) | Feedback input | Monitors output via resistor divider; internal 600mV reference sets VOUT = 0.6V × (1 + RUPPER/RLOWER). |
| SS (14) | Soft-start timing | Connect external capacitor to set soft-start time; default 1ms if left open; prevents inrush into prebiased rails. |
| EN (15) | Enable control | Internal pullup enables device when floating; UVLO threshold 1.225V (H), 1.104V (L); adjustable via resistor divider. |
| PGOOD (16) | Open-drain power-good flag | Asserts low during startup, OVP/UVP, thermal shutdown, or EN disable; requires 10kΩ pullup to VOUT or VREG5. |
| VREG5 (17) | 4.7V internal LDO output | Bypass with 4.7µF ceramic; can be overdriven externally with 5V for improved efficiency; monitored for UVLO. |
| MODE (18) | Configuration control | Resistor divider from VREG5 to AGND selects FSW, current limit, and Eco/FCCM mode per Table 6-3 in datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP3™ control mode | Eliminates need for external compensation components and current-sense resistors while delivering <10µs load transient recovery. |
| Selectable Eco-mode or FCCM | Eco-mode achieves >90% efficiency at 10mA load; FCCM maintains <±5mV output deviation under 12A step loads. |
| Monotonic start-up into prebiased outputs | Prevents reverse current flow during hot-insertion or system-level power sequencing - critical for multi-rail servers. |
| Two adjustable current limit settings | ILIM-1 (11.5A typ) and ILIM (13.8A typ) provide design margin flexibility without changing external components. |
| External 5V bias support on VREG5 | Reduces quiescent current draw from VIN, improving full-load efficiency by up to 1.2% at 12A/1.2V output. |
| –40°C to 150°C operating junction range | Validated for use in sealed industrial enclosures and baseband units without active cooling or derating. |
Applications
| Server Core Power | Telecom Point-of-Load |
|---|---|
|
Use Scenario: Delivering stable 1.2V/12A to high-performance Xeon or AMD EPYC CPU cores in 1U rack servers with strict thermal envelope. IC Role / Device Role / Timing Role: Primary buck regulator supplying processor VDD rail; manages dynamic load transients up to 6A/µs. Use Value: D-CAP3™ control ensures <8µs recovery from 12A→0A load step, preventing core voltage droop below 1.185V. |
Use Scenario: Generating 3.3V/8A for FPGA-based packet processing cards in 5G baseband units with space-constrained PCB layout. IC Role / Device Role / Timing Role: High-density POL converter replacing discrete controller + DrMOS solution; integrates power stage. Use Value: 3.5mm × 3.5mm HotRod™ QFN reduces footprint by 40% vs. comparable 12A modules while maintaining 93% peak efficiency. |
| Industrial PLC I/O Power | High-End DTV SoC Supply |
|
Use Scenario: Providing isolated 1.8V/6A and 1.0V/4A rails for ARM Cortex-A72-based programmable logic controllers operating in factory environments. IC Role / Device Role / Timing Role: Dual-output configuration using two TPS56C215RNNR devices; supports wide ambient temperature swing. Use Value: 150°C max junction rating allows uninterrupted operation at 70°C ambient without airflow or thermal throttling. |
Use Scenario: Powering 5nm media SoCs (e.g., Amlogic A311D2) in premium 4K/8K smart TVs requiring ultra-low noise and fast wake-from-standby. IC Role / Device Role / Timing Role: Core SoC VDD rail converter with Eco-mode enabled for <25µA quiescent current in standby. Use Value: Auto-skipping Eco-mode achieves 91% efficiency at 50mA load, reducing standby power by 38% vs. FCCM-only designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS568215RNNR | 8A rated, identical pinout and feature set; shares same D-CAP3™ control, MODE pin configuration, and 3.5mm × 3.5mm RNN package. | Suitable for lower-current FPGA I/O banks or auxiliary rails where 12A headroom is unnecessary. | Select when system-level current demand is ≤8A and BOM consolidation with TPS56C215RNNR is desired. |
| MP2964GQZ | 12A rated, but uses current-mode control with external compensation; requires sense resistor and loop tuning; no Eco-mode. | Better suited for designs requiring precise current monitoring or paralleling multiple phases via IMON output. | Choose only if D-CAP3™'s no-compensation advantage is secondary to phase-interleaving or analog current reporting needs. |
Compared with TPS56C215RNNR, TPS568215RNNR offers identical layout compatibility but reduced current capacity, while MP2964GQZ trades ease-of-use for greater control flexibility - making TPS56C215RNNR optimal for space-constrained, high-transient POL designs where rapid deployment and thermal robustness are prioritized.
Availability
TPS56C215RNNR is available at Aetrix Electronics and suitable for server, telecom, and industrial embedded applications requiring stable component supply, extended temperature operation, and high-density 12A POL conversion.
Supply support for TPS56C215RNNR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in high-reliability power conversion.
The TPS56C215RNNR belongs to TI's SWIFT™ family of high-current DC/DC converters, designed specifically for demanding core and I/O power delivery in datacenter, networking, and industrial compute platforms.
FAQ
What is the maximum continuous output current supported by the TPS56C215RNNR?
The TPS56C215RNNR is rated for 12A continuous output current under recommended operating conditions (TJ ≤ 105°C, 100k hours reliability). Absolute maximum rating is 14A, but sustained operation above 12A requires derating per thermal analysis and is not qualified for long-term reliability per TI's Power-On-Hours specification.
Does the TPS56C215RNNR require external compensation components?
No, the TPS56C215RNNR uses D-CAP3™ adaptive on-time control with internal ripple injection and an integrated error amplifier, eliminating the need for external compensation networks, current-sense resistors, or loop-stabilizing components - simplifying design and reducing BOM count.
How is switching frequency selected on the TPS56C215RNNR?
Switching frequency (400 kHz / 800 kHz / 1200 kHz) is selected by applying a specific voltage to the MODE pin using a resistor divider from VREG5 to AGND. The exact voltage thresholds and corresponding configurations are defined in Table 6-3 of the TPS56C215RNNR datasheet.
Can the TPS56C215RNNR start up into a prebiased output?
Yes, the TPS56C215RNNR supports monotonic start-up into prebiased outputs - it actively prevents reverse current flow during startup by controlling high-side MOSFET turn-on timing, ensuring safe hot-plug and multi-rail sequencing in server and telecom systems.
What thermal performance can be expected from the TPS56C215RNNR in a standard 2-layer PCB layout?
In a JEDEC-standard 2-layer board (1oz copper, 100mm² thermal pad), the TPS56C215RNNR exhibits RθJA = 29.5°C/W. At 12A/1.2V output with 12V input, this yields ~45°C junction-to-ambient rise - enabling full-rated operation without forced airflow or heatsinks in most industrial and telecom enclosures.
TPS56C215RNNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™, D-CAP2™, Eco-Mode™
- Package/Case:
- 18-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 12A
- Frequency - Switching:
- 400kHz, 800kHz, 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-VQFN-HR (3.5x3.5)
TPS56C215RNNR FAQ
1.How can I place an order for TPS56C215RNNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS56C215RNNR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS56C215RNNR reliable?
The price and inventory of TPS56C215RNNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS56C215RNNR is usually 5 days.
3.What payment methods are accepted for TPS56C215RNNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS56C215RNNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS56C215RNNR?
TPS56C215RNNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS56C215RNNR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS56C215RNNR?
For technical support, including TPS56C215RNNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS56C215RNNR requirements.
6.How does Aetrix verify that TPS56C215RNNR is sourced from the original manufacturer or authorized distributors?
All TPS56C215RNNR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS56C215RNNR meets industry standards.
7.What is the process for return or replacement of TPS56C215RNNR?
All TPS56C215RNNR units undergo pre-shipment inspection (PSI). If there is an issue with TPS56C215RNNR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS56C215RNNR part is unused and in its original packaging.
Return procedure for TPS56C215RNNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS56C215RNNR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
