My Inquiry
My Account
Texas Instruments TPS54627DDAR
- Part No.:
- TPS54627DDAR
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54627DDAR.pdf
- Description:
- IC REG BUCK ADJ 6A 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:9,998
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS54627DDAR from Texas Instruments is a 6-A synchronous step-down DC/DC converter with integrated high-side (36 mΩ) and low-side (28 mΩ) N-channel MOSFETs, operating from 4.5 V to 18 V input and delivering adjustable output voltage from 0.76 V to 5.5 V using D-CAP2™ adaptive on-time control. It delivers fast transient response in digital TV power supplies and networking terminals without external compensation.
For engineers reviewing the TPS54627DDAR datasheet, TPS54627DDAR pinout, TPS54627DDAR application, or TPS54627DDAR equivalent, key selection considerations include its 650-kHz pseudo-fixed switching frequency, prebiased soft-start capability, cycle-by-cycle overcurrent protection, thermal shutdown at 165°C, and SO PowerPAD (8-pin) package optimized for high-current, low-ESR ceramic capacitor designs.
Technical Context
The TPS54627DDAR implements D-CAP2™ mode control-an adaptive on-time PWM architecture that eliminates need for external compensation while maintaining stability with ultra-low-ESR ceramic output capacitors. Its internal one-shot timer sets on-time inversely proportional to VIN and proportional to VOUT, enabling ~650-kHz operation across input and load conditions.
It integrates dual N-FETs with RDS(on) of 36 mΩ (high-side) and 28 mΩ (low-side), supports prebiased soft-start via SS pin current sourcing/sinking (6 µA charge / 3.3 mA discharge), and provides non-latching protections including cycle-by-cycle OCP, 125% overvoltage detection, 65% hiccup-mode undervoltage response, and thermal shutdown at 165°C with 35°C hysteresis.
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 | 6 A continuous - enables single-chip supply for FPGA core, SoC I/O, or multi-core processor domains. |
| Output Voltage Range | 0.76 V to 5.5 V - programmable via resistor divider; 0.765 V reference ensures ±1% initial accuracy at 25°C. |
| Switching Frequency | ~650 kHz - pseudo-constant frequency set by adaptive on-time; reduces EMI filter size vs variable-frequency controllers. |
| High-Side RDS(on) | 36 mΩ - minimizes conduction loss at high duty cycles; enables >90% efficiency at 1.05 V/6 A with 12 V input. |
| Low-Side RDS(on) | 28 mΩ - lowers synchronous rectification loss during light-load and high-duty-cycle operation. |
| Soft-Start Control | Adjustable via external capacitor on SS pin - enables controlled ramp-up and prevents inrush into prebiased outputs. |
| Thermal Shutdown | 165°C with 35°C hysteresis - protects against sustained overload or poor PCB thermal design; non-latching recovery. |
Pinout & Package
TPS54627DDAR is housed in an 8-pin SO PowerPAD™ package (4.89 mm × 3.90 mm) with exposed thermal pad soldered to PCB ground plane for enhanced thermal dissipation (RθJA = 43.5°C/W, RθJC(bot) = 5.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control; internal 200–800 kΩ pull-down allows direct connection to microcontroller GPIO or system power rail. |
| VFB (Pin 2) | Feedback input | Monitors output via resistor divider; 0.765 V reference enables precise regulation; ±0.15 µA input bias minimizes divider error. |
| VREG5 (Pin 3) | Internal 5.5-V LDO output | Powers internal circuitry and bootstrap capacitor; requires 1 µF ceramic cap to GND; inactive when EN = low. |
| SS (Pin 4) | Soft-start control | 6 µA constant-current source charges external capacitor; determines startup time and enables prebias-safe ramp-up. |
| GND (Pin 5) | Power ground | Main return path for switching current; must be connected to thermal pad and isolated from analog ground traces. |
| SW (Pin 6) | Switch node | Connection between high- and low-side FETs; drives external LC filter; requires tight layout to minimize ringing and EMI. |
| VBST (Pin 7) | Bootstrap supply | Charged via internal diode from VREG5; requires 0.1 µF ceramic cap to SW for high-side gate drive integrity. |
| VIN (Pin 8) | Input voltage supply | Primary power input (4.5–18 V); must be decoupled with ≥10 µF ceramic + optional 0.1 µF HF bypass near pin. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ adaptive on-time control | Enables stable operation with ceramic output capacitors (no ESR requirement) and eliminates external compensation network. |
| Prebiased soft-start | Prevents reverse current flow during startup into precharged outputs by gradually enabling low-side FET conduction. |
| Cycle-by-cycle overcurrent protection | Detects valley current via low-side FET VSW-GND; triggers hiccup mode after 7 consecutive overcurrent cycles. |
| Integrated 5.5-V VREG5 LDO | Self-powered gate driver supply; eliminates need for external bias rail; shuts down with EN to reduce standby current. |
| Thermal and UVLO protection | Non-latching shutdown at 165°C junction temp and <3.45 V VREG5 voltage; automatic recovery after fault removal. |
| Low shutdown current | <10 µA typical - supports battery-backed or always-on systems requiring ultra-low quiescent power. |
Applications
| Digital TV Power Supply | Networking Home Terminal |
|---|---|
|
Use Scenario: Powers SoC core (1.05 V/6 A) and memory interface (1.8 V/3 A) in 4K UHD television platforms. IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated, low-noise core voltage with fast load-step response to video processing bursts. Use Value: D-CAP2™ control maintains <±10 mV output deviation during 0→6 A transients (100 µs/div), reducing required bulk capacitance by 40% vs voltage-mode controllers. |
Use Scenario: Supplies CPU, PHY, and DDR termination in residential gateway routers and DOCSIS 3.1 cable modems. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting dynamic voltage scaling and deep-sleep modes. Use Value: 36 mΩ/28 mΩ FETs and <10 µA shutdown current enable >92% peak efficiency at 1.2 V/4 A and <25 µA system standby draw. |
| High-Definition Blu-ray Disc™ Player | Digital Set-Top Box (STB) |
|
Use Scenario: Generates 1.1 V core and 3.3 V I/O rails for BD-ROM controller ASIC and HDMI transmitter. IC Role / Device Role / Timing Role: Main DC/DC stage converting 12 V adapter input to multiple low-voltage rails via cascaded regulation. Use Value: Adjustable soft-start prevents inrush into prebiased HDMI hot-plug circuits; SS pin enables synchronized multi-rail sequencing. |
Use Scenario: Delivers 1.0 V/5 A to ARM-based media processor and 5 V/2 A to tuner subsystem in IPTV/OTT STBs. IC Role / Device Role / Timing Role: Synchronous buck converter with integrated FETs and thermal monitoring for compact, fanless enclosure design. Use Value: SO PowerPAD package and RθJC(bot) = 5.2°C/W allow full 6 A output in 60°C ambient without heatsink-verified per JEDEC JESD51-7. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54620RGYR | Same D-CAP2™ architecture but rated for 6 A continuous at –40°C to 125°C; uses 14-pin VQFN with wettable flanks. | Required for extended temperature industrial or automotive infotainment applications where 85°C ambient is insufficient. | Select TPS54620RGYR when junction temperature must exceed 125°C or IPC Class 3 solder joint inspection is mandated. |
| MP2315GJ-Z | 6 A monolithic buck with 4.5–28 V input; fixed 650 kHz frequency; no prebiased soft-start or VREG5 LDO output. | Suitable for cost-sensitive consumer electronics where auxiliary rail generation and prebias safety are not required. | Choose MP2315GJ-Z only if board space allows larger external bootstrap cap and system lacks precharged outputs. |
Compared with TPS54627DDAR, TPS54620RGYR offers higher temperature rating and enhanced manufacturability, while MP2315GJ-Z trades integrated features for lower BOM cost-neither is pin-compatible, and both require layout revision and firmware validation for replacement.
Availability
TPS54627DDAR is available at Aetrix Electronics and suitable for digital TV power supplies, networking home terminals, and digital set-top boxes requiring stable component supply, long-term production continuity, and TI-qualified manufacturing traceability.
Supply support for TPS54627DDAR 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 TPS54627DDAR belongs to TI's D-CAP2™ synchronous buck converter product line, designed specifically for high-current, low-voltage point-of-load applications in consumer electronics where fast transient response and minimal external components are critical.
FAQ
What is the maximum output current capability of the TPS54627DDAR?
The TPS54627DDAR is rated for 6 A continuous output current under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). Its integrated 36 mΩ high-side and 28 mΩ low-side MOSFETs, combined with SO PowerPAD thermal enhancement, sustain this current with junction temperatures below 125°C in typical 4-layer board layouts per TI's SLVSBW6B datasheet Figure 10.
Does the TPS54627DDAR support prebiased output startup?
Yes, the TPS54627DDAR supports prebiased soft-start via proprietary internal circuitry. When the output is precharged, the controller gradually enables low-side FET conduction before high-side activation, preventing reverse current flow and ensuring monotonic voltage ramp-up-confirmed in Section 7.3.1 of the SLVSBW6B datasheet.
What package type and thermal characteristics does the TPS54627DDAR use?
The TPS54627DDAR uses the SO PowerPAD (DDA) 8-pin package (4.89 mm × 3.90 mm) with exposed thermal pad. Its thermal metrics include RθJA = 43.5°C/W and RθJC(bot) = 5.2°C/W, enabling efficient heat transfer to the PCB ground plane-critical for sustaining 6 A output in compact consumer enclosures.
Can the TPS54627DDAR operate with ceramic output capacitors only?
Yes, the TPS54627DDAR is explicitly designed for ceramic output capacitors. Its D-CAP2™ control architecture eliminates dependency on capacitor ESR, allowing stable operation with ultra-low-ESR types (e.g., X5R/X7R MLCCs), as validated in Section 7.1 and Figure 7 of the SLVSBW6B datasheet.
What protection features are integrated into the TPS54627DDAR?
The TPS54627DDAR integrates cycle-by-cycle overcurrent protection (OCP), non-latching thermal shutdown (165°C), 125% overvoltage protection (OVP), 65% hiccup-mode undervoltage protection (UVP), and UVLO on the VREG5 rail. All protections are described in Sections 7.3.3–7.3.6 of the SLVSBW6B datasheet and require no external components.
TPS54627DDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP2™
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm 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:
- 6A
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
TPS54627DDAR FAQ
1.How can I place an order for TPS54627DDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54627DDAR 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 TPS54627DDAR reliable?
The price and inventory of TPS54627DDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54627DDAR is usually 5 days.
3.What payment methods are accepted for TPS54627DDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54627DDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54627DDAR?
TPS54627DDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54627DDAR 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 TPS54627DDAR?
For technical support, including TPS54627DDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54627DDAR requirements.
6.How does Aetrix verify that TPS54627DDAR is sourced from the original manufacturer or authorized distributors?
All TPS54627DDAR 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 TPS54627DDAR meets industry standards.
7.What is the process for return or replacement of TPS54627DDAR?
All TPS54627DDAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS54627DDAR, 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 TPS54627DDAR part is unused and in its original packaging.
Return procedure for TPS54627DDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS54627DDAR 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…
