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Texas Instruments TPS62182YZFT
- Part No.:
- TPS62182YZFT
- Manufacturer:
- Texas Instruments
- Package:
- 24-UFBGA, DSBGA
- Datasheet:
-
TPS62182YZFT.pdf
- Description:
- IC REG BUCK 3.3V 6A 24DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:370
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Product details
Overview
TPS62182YZFT from Texas Instruments is a synchronous dual-phase step-down DC-DC converter delivering a fixed 3.3 V / 6 A output from 4 V to 15 V input, using peak current mode control with phase-shifted operation and Automatic Efficiency Enhancement (AEE™). It integrates feedback resistors for fixed output, supports power good signaling, soft-start control, and operates in NanoFree™ 2.10 mm × 3.10 mm DSBGA-24 package for ultra-low-profile POL applications.
For engineers reviewing the TPS62182YZFT datasheet, TPS62182YZFT pinout, TPS62182YZFT application, or TPS62182YZFT equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation value, and two confirmed alternative parts with precise functional and selection guidance.
Technical Context
The TPS62182YZFT implements a predictive OFF-time peak current control topology with dual independent current loops-one master (SW1), one follower (SW2)-operating with a fixed 250 ns phase delay in PWM mode. It features automatic transition between continuous conduction mode (CCM) and discontinuous conduction mode (DCM) Power Save Mode (PSM) to maintain high efficiency down to light loads.
Its integrated 3.3 V reference uses an internal 0.8 V bandgap with fixed resistor divider; FB is internally tied to AGND via ~350 kΩ, eliminating external resistors. The device includes HICCUP overcurrent protection (0.9 ms on, 5 ms off), thermal shutdown at 160°C, UVLO at 3.6 V (300 mV hysteresis), and 100% duty cycle capability for low-VIN-to-VOUT operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 15 V - supports multi-cell Li-ion (2–3S) and standard 12 V rails without external pre-regulation. |
| Output Voltage | Fixed 3.3 V ±1% - eliminates external feedback resistors, reduces BOM count and layout area. |
| Max Output Current | 6 A continuous - delivered by two balanced 3 A phases, enabling smaller inductors (1 µH each) and lower RMS input ripple. |
| Quiescent Current | 28 µA typical - enables >100-hour battery runtime in always-on systems with light-load standby. |
| Switching Frequency | Variable (AEE™-controlled) - adjusts dynamically with VIN/VOUT to maximize efficiency across full duty cycle range, not fixed. |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Package | DSBGA-24 (YZF), 2.10 mm × 3.10 mm, 0.5 mm pitch - NanoFree™ footprint ideal for space-constrained mobile/embedded PCBs. |
Pinout & Package
NanoFree™ 24-bump DSBGA (YZF) package, 2.10 mm × 3.10 mm body size, 0.5 mm pitch, bottom-side solder balls. Thermal performance optimized via PGND array (A3–F3) and exposed die pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1, VIN2 | Phase input supplies | Separate 4–15 V inputs per phase - decouples input path noise and improves transient response; requires local 22 µF ceramic capacitors. |
| SW1, SW2 | Phase switch nodes | High-frequency switching outputs (≤24.5 V AC peak) - connect 1 µH inductors directly; routing must minimize loop area for EMI control. |
| VO | Power output | Main 3.3 V output node - connects to 2 × 47 µF bulk capacitance; serves as reference for PG and feedback network. |
| PG | Power good open-drain | Signals regulation status (high = ≥94% VOUT); requires external pull-up; used for sequencing or system reset assertion. |
| FB | Feedback reference | Internally grounded for fixed 3.3 V - must be shorted to AGND on PCB to ensure thermal stability and avoid accuracy drift. |
| EN | Enable control | Active-high logic (0.9 V threshold) - supports precise power sequencing; internal 350 kΩ pull-down holds disable state if floating. |
| SS/TR | Soft-start/tracking | Controls startup slew rate via external capacitor; also enables monotonic start into pre-biased rails when driven externally. |
| AGND, PGND | Analog & power ground | Separate ground pins - AGND (C4) ties to FB/PG reference; PGND (A3–F3) carries high di/dt return currents; must be joined under IC. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase current balancing | ±10% matching at 6 A load - eliminates need for matched inductors or current-sense calibration; ensures thermal uniformity. |
| Automatic Efficiency Enhancement (AEE™) | Dynamic OFF-time adjustment - maintains >90% efficiency from 1 A to 6 A across 4–15 V input, unlike fixed-frequency converters. |
| Phase-shifted operation | 250 ns inter-phase delay in PWM mode - cuts input RMS current by ~30% and reduces EMI peaks vs single-phase equivalents. |
| Integrated 3.3 V feedback | No external resistors required - saves 2 SMT placements, reduces layout sensitivity, and improves long-term voltage stability. |
| Power Good with hysteresis | 94–98% rising / 90–94% falling threshold - provides robust sequencing margin against line/load transients without external comparators. |
| NanoFree™ DSBGA packaging | 2.10 mm × 3.10 mm footprint - enables <12 mm² total solution size including inductors and caps, critical for tablet/SSD designs. |
Applications
| Low-Profile Point-of-Load Supply | NVDC-Powered Systems |
|---|---|
|
Use Scenario: Powering SoC I/O rails or DDR memory termination in thin client PCs where height is limited to <1.2 mm. IC Role / Device Role / Timing Role: Dual-phase buck regulator providing stable 3.3 V at up to 6 A with minimal board area and thermal rise. Use Value: 2.10 mm × 3.10 mm DSBGA + 1 µH inductors enable sub-1.0 mm profile; phase shift reduces input cap stress and EMI filtering cost. |
Use Scenario: Supplying 3.3 V to USB-C PD controllers and Type-C port logic in notebooks with NVDC (Narrow VDC) architecture. IC Role / Device Role / Timing Role: Primary 3.3 V POL converter accepting wide-input (4–15 V) from battery or adapter, with seamless source handoff. Use Value: UVLO at 3.6 V and 100% duty cycle mode extend usable battery range; PG signal synchronizes with system power manager. |
| Dual/Triple-Cell Li-ion Battery Systems | Micro Server & SSD Power |
|
Use Scenario: Regulating 3.3 V for PMICs or baseband processors in portable medical devices powered by 2S or 3S Li-ion packs. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating across full battery discharge curve (12 V → 6 V → 4.2 V). Use Value: AEE™ maintains >88% efficiency at 1 A load even at 4.5 V input; 28 µA quiescent current extends shelf life in standby. |
Use Scenario: Delivering 3.3 V to PCIe SSD controller ASICs and NAND flash interface logic in enterprise storage modules. IC Role / Device Role / Timing Role: High-current, low-noise POL supply supporting fast transient loads (e.g., burst writes) with <1% output deviation. Use Value: Dual-phase current sharing handles 5 A transients with <20 mV droop; HICCUP protection avoids catastrophic failure during NAND short events. |
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 |
|---|---|---|---|
| TPS62184YZFT | Pin-to-pin compatible; adjustable output (0.9–6 V) via external FB divider; same 6 A rating and DSBGA-24 package. | Requires two external resistors and layout space for feedback network; suited for designs needing flexible VOUT or future voltage scaling. | Select TPS62184YZFT only if adjustable output is required; otherwise TPS62182YZFT reduces BOM and simplifies layout. |
| TPS546D24RVFT | 6 A, 4–18 V input, 0.5–3.3 V adjustable output; 3.5 mm × 4.5 mm VQFN-26 package; higher IQ (120 µA) but adds PMBus telemetry. | Supports digital monitoring (VOUT, IOUT, temperature); larger footprint and higher cost; no integrated 3.3 V option. | Choose TPS546D24RVFT only when telemetry, remote margining, or wider input range (up to 18 V) are mandatory. |
Compared with TPS62184YZFT, the TPS62182YZFT saves two resistors and improves thermal margin via direct FB grounding; versus TPS546D24RVFT, it offers smaller size, lower IQ, and simpler analog control-ideal for cost- and space-sensitive embedded power rails.
Availability
TPS62182YZFT is available at Aetrix Electronics and suitable for low-profile point-of-load supplies, NVDC-powered systems, and dual/triple-cell Li-ion battery applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS62182YZFT 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 TPS6218x product line was designed specifically for ultra-thin, high-current POL applications in portable computing, SSDs, and battery-powered industrial systems-prioritizing minimal footprint, dual-phase efficiency, and seamless integration.
FAQ
What is the recommended input capacitance for TPS62182YZFT?
TI recommends 2 × 22 µF X5R/X7R ceramic capacitors placed close to VIN1 and VIN2 pins respectively. These provide low-ESR/ESL filtering for high di/dt phase currents and suppress input ripple below 20 mVpp. Additional bulk capacitance (e.g., 100 µF tantalum) may be added upstream for battery-fed systems with long traces.
Can TPS62182YZFT operate with only one input rail connected?
No. TPS62182YZFT requires both VIN1 and VIN2 to be supplied within 4–15 V. The device uses separate power paths for each phase; disconnecting either rail causes undefined behavior, potential phase imbalance, or failure to regulate. Both inputs must be sourced from the same supply or tightly coupled rails.
How is soft-start time set on TPS62182YZFT?
Soft-start time is set by an external capacitor on the SS/TR pin: tSS ≈ 64 × CSS × RFB, where RFB is the effective resistance from FB to AGND. For TPS62182YZFT, RFB ≈ 350 kΩ (internal), so a 10 nF capacitor yields ~220 ms startup. TI recommends 4.7–22 nF for most applications; leaving SS/TR floating risks output overshoot.
Does TPS62182YZFT support pre-biased output startup?
Yes. TPS62182YZFT supports monotonic start into pre-biased outputs via the SS/TR pin. When an external voltage ramps the SS/TR node, the FB pin tracks it (VFB ≈ 0.64 × VSS/TR), allowing controlled ramp-up even if VO starts at 3.3 V. This avoids reverse current flow and ensures safe hot-plug operation.
What thermal derating applies to TPS62182YZFT at 6 A output?
At 6 A continuous load with 2-layer 2 oz copper PCB and no airflow, TPS62182YZFT junction temperature rises ~45°C above ambient (RθJA = 61.5°C/W). Derating begins above 85°C ambient; full 6 A is guaranteed only up to 85°C TJ. For 125°C ambient operation, max load drops to ~4.2 A based on thermal simulation and TI's layout guidelines.
TPS62182YZFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-DSBGA
TPS62182YZFT FAQ
1.How can I place an order for TPS62182YZFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62182YZFT 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 TPS62182YZFT reliable?
The price and inventory of TPS62182YZFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62182YZFT is usually 5 days.
3.What payment methods are accepted for TPS62182YZFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62182YZFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62182YZFT?
TPS62182YZFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62182YZFT 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 TPS62182YZFT?
For technical support, including TPS62182YZFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62182YZFT requirements.
6.How does Aetrix verify that TPS62182YZFT is sourced from the original manufacturer or authorized distributors?
All TPS62182YZFT 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 TPS62182YZFT meets industry standards.
7.What is the process for return or replacement of TPS62182YZFT?
All TPS62182YZFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62182YZFT, 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 TPS62182YZFT part is unused and in its original packaging.
Return procedure for TPS62182YZFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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