My Inquiry
My Account
Texas Instruments TPS54626PWPR
- Part No.:
- TPS54626PWPR
- Manufacturer:
- Texas Instruments
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS54626PWPR.pdf
- Description:
- IC REG BUCK ADJ 6.5A 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS54626PWPR from Texas Instruments is a 6.5-A synchronous step-down DC/DC converter with integrated high-side (36 mΩ) and low-side (28 mΩ) N-channel MOSFETs, D-CAP2™ adaptive on-time control, and Auto-Skip Eco-mode™ for light-load efficiency. It operates from 4.5 V to 18 V input, delivers adjustable output from 0.76 V to 5.5 V, and targets high-efficiency point-of-load regulation in digital TV, Blu-ray players, and networking terminals.
For engineers reviewing the TPS54626PWPR datasheet, TPS54626PWPR pinout, TPS54626PWPR application, or TPS54626PWPR equivalent, key selection considerations include its 650-kHz pseudo-fixed switching frequency, thermal shutdown at 165°C, cycle-by-cycle overcurrent protection, pre-biased soft start capability, and HTSSOP-14 PowerPAD™ package with exposed thermal pad soldered to PGND.
Technical Context
The TPS54626PWPR implements D-CAP2™ mode control-combining adaptive on-time PWM with internal compensation-to achieve fast transient response without external loop compensation components. Its on-time is inversely proportional to VIN and proportional to VOUT, enabling stable operation with ceramic or ultra-low-ESR output capacitors.
It supports seamless transition between continuous conduction mode (CCM) at heavy loads and discontinuous conduction mode (DCM) at light loads via Auto-Skip Eco-mode™, reducing switching losses. Protection features include valley-current OCP, output over/under-voltage detection (125%/65% thresholds), UVLO on VREG5 (3.75 V typ), and non-latching thermal shutdown at 165°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 18 V - supports wide industrial and consumer DC bus inputs including 5 V, 12 V, and 15 V rails. |
| Output Current | Up to 6.5 A - sufficient for FPGA core, SoC I/O, or ASIC power domains requiring high current density. |
| Switching Frequency | 650 kHz (pseudo-fixed) - enables compact magnetics while balancing EMI and efficiency trade-offs. |
| Integrated FETs | 36 mΩ HS / 28 mΩ LS - reduces conduction loss and eliminates external MOSFET layout complexity. |
| Feedback Reference | 0.765 V ±1.5% - enables precise output voltage setting with standard resistor dividers and tight load regulation. |
| Soft Start | Adjustable via external capacitor - prevents inrush current; supports pre-biased output startup without sinking current. |
| Power Good Output | Open-drain PG with 90% rising threshold - provides system-level sequencing and fault indication with external RPG (25–150 kΩ). |
Pinout & Package
The TPS54626PWPR is housed in a 14-pin HTSSOP package (PWP) with an exposed PowerPAD™ thermal pad that must be soldered to PGND for thermal performance (θJA = 40.5°C/W). The package is rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VO (Pin 1) | Output voltage node | Connects to output filter; enables internal discharge path to PGND when EN = low. |
| VFB (Pin 2) | Feedback input | Senses output via resistor divider; reference voltage is 0.765 V; input bias current < ±0.15 μA. |
| VREG5 (Pin 3) | 5-V internal LDO output | Powers internal circuitry; requires 1-μF ceramic cap to GND; active only when EN = high. |
| SS (Pin 4) | Soft-start control | Charged by 6 μA internal current source; sets ramp time; enables pre-biased startup. |
| GND (Pin 5) | Signal ground | Reference for analog circuitry; must be connected close to PGND1/PGND2 near IC. |
| PG (Pin 6) | Power good indicator | Open-drain output; asserts high after 1.7× soft-start time when VFB ≥ 90% of target. |
| EN (Pin 7) | Enable input | Active-high logic; 1.6 V threshold; internal pull-down; supports sequencing and standby control. |
| PGND1, PGND2 (Pins 8,9) | Power ground returns | Low-side MOSFET sources and current-sense reference points; connect directly to PowerPAD™. |
| SW1, SW2 (Pins 10,11) | Switch nodes | Connect to inductor; serve as inputs to current comparators; require low-inductance routing. |
| VBST (Pin 12) | Bootstrap supply | Drives high-side gate; requires 0.1-μF ceramic cap to SW1/SW2; internal diode from VREG5. |
| VIN1, VIN2 (Pins 13,14) | Main input supply | High-side drain connections; accept 4.5–18 V; require local 10-μF ceramic + 0.1-μF bypass caps. |
| PowerPAD™ (Backside) | Thermal & electrical ground | Must be soldered to PGND plane with ≥6 thermal vias; primary heat dissipation path. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ adaptive on-time control | Enables zero-external-compensation design with fast transient response (<10 μs typical) and stability across ceramic/SP-CAP outputs. |
| Auto-Skip Eco-mode™ | Reduces light-load quiescent current to <10 μA and improves efficiency below ~200 mA output. |
| Pre-biased soft start | Prevents reverse current flow during startup when output is already biased; avoids system-level brownout. |
| Cycle-by-cycle overcurrent protection | Valley-current sensing on low-side FET ensures accurate current limiting without external sense resistors. |
| Integrated 5-V LDO (VREG5) | Supplies internal logic and bootstrap circuitry; eliminates need for external bias rail; shuts down with EN. |
Applications
| Digital TV Power Supply | Blu-ray Disc™ Player |
|---|---|
Use Scenario: Powers main SoC, video decoder, and memory interfaces in 4K UHD television platforms. IC Role / Device Role / Timing Role: Primary buck regulator delivering 1.05 V @ 6.5 A to processor core with tight ripple (<10 mVpp) and fast load-step response. Use Value: D-CAP2™ control meets stringent transient requirements without adding bulk capacitance; Eco-mode extends standby battery life in smart TV sleep modes. | Use Scenario: Supplies HDMI PHY, servo motor drivers, and laser diode bias in high-definition optical disc players. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter generating 3.3 V @ 3 A for interface circuitry with minimal thermal footprint. Use Value: Integrated FETs and PowerPAD™ enable compact PCB layout; 650-kHz switching allows small 1.5-μH inductor and 22-μF ceramic output caps. |
| Networking Home Terminal | Digital Set Top Box (STB) |
Use Scenario: Regulates power for Wi-Fi/BT combo modules and Ethernet PHYs in residential gateways and mesh routers. IC Role / Device Role / Timing Role: Secondary buck stage converting 12 V input to 1.8 V for RF transceivers with low EMI and high PSRR. Use Value: Adjustable soft start prevents inrush-induced voltage droop on shared 12 V rail; PG signal enables firmware-controlled power sequencing. | Use Scenario: Delivers 5 V @ 2 A to conditional access module (CAM) and tuner subsystems in cable/satellite receivers. IC Role / Device Role / Timing Role: Main 5-V POL regulator with overvoltage protection (125% trip) to safeguard sensitive decryption ICs. Use Value: Output discharge function safely bleeds residual charge on 5 V rail during power-down; UVLO prevents erratic behavior during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54620RGYT | Same D-CAP2™ architecture but 6-A rating; 16-pin QFN with wettable flanks; higher thermal performance (θJA = 32°C/W). | Preferred for space-constrained designs needing enhanced thermal headroom or automated optical inspection (AOI) compatibility. | Select when board area is limited and thermal margin is critical; requires different layout and footprint. |
| MP2315DJ-LF-P | Monolithic 6-A buck with 4.5–28 V input; fixed 500-kHz frequency; no Eco-mode; lower quiescent current (25 μA) but no pre-biased soft start. | Better suited for cost-sensitive industrial applications where light-load efficiency is secondary to BOM simplicity. | Choose for simpler design with fewer external components; not recommended for pre-biased or fast-transient systems. |
Compared with TPS54626PWPR, TPS54620RGYT offers superior thermal management in QFN packaging but requires PCB redesign, while MP2315DJ-LF-P trades advanced features like Eco-mode and pre-biased startup for lower cost and wider input range-making it suitable only where those capabilities are unnecessary.
Availability
TPS54626PWPR is available at Aetrix Electronics and suitable for digital TV power supplies, Blu-ray player SoC rails, and networking home terminal point-of-load regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS54626PWPR 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 company specializing in analog, embedded processing, and power management solutions, with leadership in high-efficiency DC/DC conversion and automotive-grade reliability.
The TPS54626PWPR belongs to TI's SWIFT™ synchronous buck converter family, designed specifically for high-current, low-voltage point-of-load applications in consumer electronics where fast transient response, compact size, and light-load efficiency are critical.
FAQ
What is the maximum output current supported by the TPS54626PWPR?
The TPS54626PWPR supports up to 6.5 A of continuous output current under recommended operating conditions (TA ≤ 85°C, proper thermal layout). This rating assumes adequate PCB copper area, thermal vias under the PowerPAD™, and airflow. Peak current limit is 7.2–9.5 A (typical 8.2 A), but sustained operation above 6.5 A risks thermal shutdown unless derated per junction temperature limits.
Does the TPS54626PWPR require external compensation components?
No, the TPS54626PWPR does not require external compensation components due to its D-CAP2™ adaptive on-time control architecture. The internal loop compensation is fully integrated, enabling stable operation with ceramic or polymer output capacitors without adding RC networks or type-II/III compensators-reducing BOM count and layout complexity.
Can the TPS54626PWPR start up into a pre-biased output voltage?
Yes, the TPS54626PWPR supports pre-biased soft start. When the output voltage is already present at startup, the controller gradually enables the low-side FET with narrow on-times, incrementing duty cycle cycle-by-cycle until reaching normal regulation-preventing reverse current flow and ensuring smooth ramp-up without disrupting downstream circuitry.
What is the purpose of the PowerPAD™ on the TPS54626PWPR package?
The PowerPAD™ on the TPS54626PWPR is an exposed thermal pad on the underside of the HTSSOP-14 package. It must be soldered directly to a PGND copper plane with ≥6 thermal vias to dissipate heat effectively. This feature lowers junction-to-board thermal resistance (θJB = 24.2°C/W) and enables reliable 6.5-A operation within the –40°C to +85°C ambient range.
How does the Auto-Skip Eco-mode™ improve efficiency at light loads?
Auto-Skip Eco-mode™ improves light-load efficiency by disabling switching cycles when output current drops below the boundary between continuous and discontinuous conduction modes. This reduces switching losses and cuts quiescent current to <10 μA, increasing efficiency from ~65% at 50 mA to >85% at 100 mA-critical for standby power in consumer electronics.
TPS54626PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™, D-CAP2™, Eco-Mode™
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- 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):
- 18V
- Voltage - Output (Min/Fixed):
- 0.765V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6.5A
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-HTSSOP
TPS54626PWPR FAQ
1.How can I place an order for TPS54626PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54626PWPR 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 TPS54626PWPR reliable?
The price and inventory of TPS54626PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54626PWPR is usually 5 days.
3.What payment methods are accepted for TPS54626PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54626PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54626PWPR?
TPS54626PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54626PWPR 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 TPS54626PWPR?
For technical support, including TPS54626PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54626PWPR requirements.
6.How does Aetrix verify that TPS54626PWPR is sourced from the original manufacturer or authorized distributors?
All TPS54626PWPR 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 TPS54626PWPR meets industry standards.
7.What is the process for return or replacement of TPS54626PWPR?
All TPS54626PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS54626PWPR, 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 TPS54626PWPR part is unused and in its original packaging.
Return procedure for TPS54626PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS54626PWPR 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…
