My Inquiry
My Account
Texas Instruments TPS62480RNCR
- Part No.:
- TPS62480RNCR
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN
- Datasheet:
-
TPS62480RNCR.pdf
- Description:
- IC REG BUCK ADJ 6A DL 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,165
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62480RNCR from Texas Instruments is a synchronous 2-phase step-down DC-DC converter delivering up to 6 A continuous output current across two 3-A phases, operating from 2.4 V to 5.5 V input and supporting 0.6 V to 5.5 V adjustable output voltage with ±1% feedback accuracy in PWM mode. It integrates dual high-side/low-side MOSFETs (RDS(ON) = 36/29 mΩ Phase 1), features phase-shifted operation to reduce input ripple, and targets low-profile point-of-load power in space-constrained applications like SSDs and optical modules.
For engineers reviewing the TPS62480RNCR datasheet, TPS62480RNCR pinout, TPS62480RNCR application, or TPS62480RNCR equivalent, key selection considerations include its 2.2 MHz switching frequency, automatic phase add/shed functionality, Power Good and Thermal Good open-drain outputs, adjustable soft-start via SS/TR pin, and support for dynamic voltage scaling via VSEL pin.
Technical Context
The TPS62480RNCR implements a predictive OFF-time peak current control topology with dual independent current loops-one per phase-each regulating to the same VOUT setpoint using identical cycle-by-cycle peak current thresholds. Its adaptive delay ensures inherent 180° phase shift between SW1 and SW2, reducing input RMS current and EMI.
It supports three functional modes: forced PWM (MODE = High), automatic PWM/Power Save Mode (MODE = Low), and 100% duty cycle operation when VIN approaches VOUT; quiescent current drops to 23 µA in light-load PSM and rises to 3.5 mA in 100% mode. Internal compensation eliminates need for external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4 V to 5.5 V - supports direct operation from 3.3-V or 5-V rails and backup supplies down to 2.4 V |
| Output Current | 6 A continuous - delivered by two balanced 3-A phases with automatic phase shedding below ~1.7 A load |
| Switching Frequency | Typ. 2.2 MHz - enables use of small 470-nH inductors and compact ceramic output capacitors (4 × 22 µF) |
| Feedback Accuracy | ±1% (PWM mode, –20°C to 85°C) - ensures tight regulation for sensitive digital loads like SoCs and FPGAs |
| Quiescent Current | 23 µA (no switching, TJ = –40°C to +85°C) - minimizes standby power loss in always-on systems |
| Package | VQFN-16 (RNC), 3.0 mm × 2.5 mm - HotRod™ flip-chip construction improves thermal performance and reduces parasitic inductance |
| Protection Features | UVLO (2.3 V threshold), overcurrent (5.0 A typical per phase), overtemperature (160°C shutdown), and active output discharge (120 mA sink via VO pin) |
Pinout & Package
VQFN-16 (RNC) package with 3.0 mm × 2.5 mm body size and exposed thermal pad; RoHS-compliant, moisture-sensitive level 2a per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND1, PGND2 | Power Ground (Phase 1 & 2) | Separate low-inductance return paths for each phase's high-current switching loop; must be connected to thermal pad and local ground plane |
| SW1, SW2 | Switch Node (Phase 1 & 2) | Drain connections of internal high-side/low-side MOSFET pairs; require short, low-inductance routing to inductors |
| VIN1, VIN2 | Input Supply (Phase 1 & 2) | Dual input pins enable independent decoupling per phase; improve current sharing and reduce input ripple |
| FB | Feedback Input | Senses output voltage via resistive divider; regulated to 0.6 V reference with ±1% accuracy in PWM mode |
| VSEL | Output Voltage Select | Logic-controlled pin enabling dual VOUT levels (e.g., 1.2 V / 1.35 V) via external resistor R3 between FB and RS |
| SS/TR | Soft-Start / Tracking | Capacitor-connected pin sets startup slew rate; also accepts external voltage for supply tracking during sequencing |
| PG, TG | Power Good / Thermal Good | Open-drain status outputs requiring pull-up resistors; PG asserts when VOUT is within ±4% of target; TG asserts below 120°C junction temp |
| EN, MODE | Enable / Mode Control | EN enables/disables converter (thresholds: 1.2 V high, 0.4 V low); MODE forces PWM (High) or enables auto PSM (Low) |
| VO | Output Discharge | Internally connects to VOUT; sinks up to 120 mA when EN is low to rapidly discharge output during shutdown |
| AGND, RS | Analog Ground / Resistor Select | AGND is quiet reference for FB/RS/VSEL; RS connects external resistor to set second VOUT level when VSEL = High |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase current-mode control | Enables 6-A output with balanced per-phase current sharing (<15% deviation), reduced input/output ripple, and smaller magnetics vs single-phase |
| Automatic phase add/shed | Activates second phase only above ~1.7 A load; improves light-load efficiency by disabling unused phase without control-loop reconfiguration |
| Phase-shifted operation | Reduces input capacitor RMS current by ~30% and lowers EMI peaks compared to in-phase switching, easing EMC compliance |
| Active output discharge | Prevents floating or unintended bias on downstream circuitry during shutdown via controlled 120-mA sink through VO pin |
| Thermal Good output | Provides early thermal warning at 120°C (10°C hysteresis), enabling system-level thermal management before shutdown at 160°C |
Applications
| Solid State Drives (SSDs) | Optical Modules |
|---|---|
Use Scenario: Powering NAND flash controllers and DRAM buffers in M.2/U.2 SSDs where board height is limited to <1.2 mm. IC Role / Device Role / Timing Role: Primary 1.2-V/1.8-V point-of-load regulator delivering up to 6 A with fast transient response to handle burst I/O loads. Use Value: Dual-phase architecture maintains <15 mV output ripple under 4-A step load, meeting JEDEC DDR interface noise limits without added ferrite beads. | Use Scenario: Supplying laser diode drivers and transimpedance amplifiers in SFP+/QSFP+ optical transceivers. IC Role / Device Role / Timing Role: Low-noise, low-profile buck converter providing stable 3.3-V rail with precise sequencing relative to host FPGA logic. Use Value: SS/TR pin enables tracking of upstream 3.3-V supply, ensuring safe power-up order; PG signal confirms regulation before enabling laser bias. |
| Ultra-Portable Tablets | Embedded PCs & CMOS Cameras |
Use Scenario: Core voltage regulation for ARM-based application processors (e.g., i.MX8M) in fanless tablets with strict thermal envelope. IC Role / Device Role / Timing Role: Main SoC core rail (0.8–1.1 V) with dynamic voltage scaling via VSEL pin to match CPU performance states. Use Value: 23-µA quiescent current extends battery life in suspend mode; Thermal Good output triggers OS throttling before thermal shutdown. | Use Scenario: Powering high-resolution image sensors and ISP processors in automotive rear-view or ADAS cameras. IC Role / Device Role / Timing Role: Secondary 1.2-V/2.8-V rail for sensor analog front-end and digital processing blocks, requiring low EMI near RF sections. Use Value: 180° phase shift between SW1/SW2 reduces conducted emissions in 100–500 MHz band, easing CISPR 25 Class 5 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62420RGET | Single-phase, 3-A output; same 2.4–5.5 V input, 0.6–5.5 V output, but lacks VSEL, TG, and phase-shift capability | Suitable only for ≤3-A loads; no dynamic voltage scaling or thermal warning; requires larger inductor (1 µH) | Select when cost and board area are prioritized over output current and advanced monitoring features |
| MP2964GQKT-Z | 2-phase, 6-A, but uses external gate drivers; higher BOM count; no integrated VO discharge or TG output | Requires external MOSFETs and compensation; supports higher VIN (up to 24 V), not pin-compatible | Choose for industrial inputs >5.5 V or when discrete FET selection is required for ruggedness or thermal customization |
Compared with TPS62420RGET, the TPS62480RNCR doubles output current and adds critical system-monitoring functions (PG/TG/VSEL); versus MP2964GQKT-Z, it delivers lower solution size and simplified layout via full integration, albeit at fixed 5.5-V max input.
Availability
TPS62480RNCR is available at Aetrix Electronics and suitable for solid-state drives, optical modules, ultra-portable tablets, embedded PCs, and CMOS camera systems requiring stable component supply, long-term production continuity, and qualified automotive-grade alternatives.
Supply support for TPS62480RNCR 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 ICs, with decades of expertise in high-efficiency DC-DC conversion and automotive-grade reliability.
The TPS62480RNCR belongs to TI's TPS624xx family of high-density, low-profile step-down converters designed specifically for demanding point-of-load applications in portable, optical, and storage systems where thermal performance and solution size are critical.
FAQ
What is the maximum supported output voltage for the TPS62480RNCR?
The TPS62480RNCR supports an output voltage range of 0.6 V to 5.5 V. This is achieved using an external resistive divider connected to the FB pin, with the internal reference voltage fixed at 0.6 V. The upper limit of 5.5 V is constrained by the absolute maximum ratings of the FB and RS pins (–0.3 V to 3 V), requiring careful resistor selection to avoid exceeding these limits when setting higher VOUT values. The TPS62480RNCR datasheet confirms this range under Recommended Operating Conditions.
Does the TPS62480RNCR support power sequencing with other rails?
Yes, the TPS62480RNCR supports power sequencing via its SS/TR pin, which enables both adjustable soft-start and external voltage tracking. When an external ramp voltage is applied to SS/TR, the FB node tracks it until reaching ~0.6 V, allowing coordinated startup with upstream or downstream supplies. This feature is explicitly documented in Section 7.3.3 (Tracking) of the TPS62480RNCR datasheet and validated in typical application schematics using resistor dividers or dedicated sequencer ICs.
How does the TPS62480RNCR manage thermal performance in compact layouts?
The TPS62480RNCR uses a 3.0 mm × 2.5 mm HotRod™ VQFN (RNC) package with an exposed thermal pad, achieving a junction-to-board thermal resistance (RθJB) of 10.2°C/W with JEDEC thermal vias. Its integrated Thermal Good (TG) output asserts low at 120°C (10°C hysteresis), enabling early system intervention before 160°C thermal shutdown. These thermal characteristics are measured and specified in Section 6.4 of the TPS62480RNCR datasheet.
Can the TPS62480RNCR operate with only one phase enabled?
Yes, the TPS62480RNCR automatically operates in single-phase mode below ~1.7 A load via its phase-shedding function. The device disables Phase 2 while maintaining regulation on Phase 1, reducing switching losses and improving light-load efficiency. Phase 2 re-enables with ~0.5 A hysteresis when load increases. This behavior is detailed in Sections 7.4.5 (Phase Add/Shed) and 8.2.2.4 of the TPS62480RNCR datasheet, with typical current thresholds confirmed in Electrical Characteristics tables.
What protection features are integrated into the TPS62480RNCR?
The TPS62480RNCR integrates undervoltage lockout (UVLO, 2.3 V threshold), per-phase overcurrent protection (5.0 A typical limit), overtemperature shutdown (160°C), Power Good (PG), Thermal Good (TG), and active output discharge (120 mA via VO pin). All protections are hardware-based and do not rely on external components. Their thresholds and behaviors-including UVLO hysteresis (200 mV) and TG activation at 120°C-are fully specified in Sections 6.5 and 7.3 of the TPS62480RNCR datasheet.
TPS62480RNCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x2.5)
TPS62480RNCR FAQ
1.How can I place an order for TPS62480RNCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62480RNCR 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 TPS62480RNCR reliable?
The price and inventory of TPS62480RNCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62480RNCR is usually 5 days.
3.What payment methods are accepted for TPS62480RNCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62480RNCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62480RNCR?
TPS62480RNCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62480RNCR 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 TPS62480RNCR?
For technical support, including TPS62480RNCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62480RNCR requirements.
6.How does Aetrix verify that TPS62480RNCR is sourced from the original manufacturer or authorized distributors?
All TPS62480RNCR 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 TPS62480RNCR meets industry standards.
7.What is the process for return or replacement of TPS62480RNCR?
All TPS62480RNCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62480RNCR, 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 TPS62480RNCR part is unused and in its original packaging.
Return procedure for TPS62480RNCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62480RNCR 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…
