My Inquiry
My Account
Texas Instruments TPS548A20RVER
- Part No.:
- TPS548A20RVER
- Manufacturer:
- Texas Instruments
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
TPS548A20RVER.pdf
- Description:
- IC REG BUCK ADJ 15A 28VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,114
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS548A20RVER from Texas Instruments is a 15-A synchronous step-down DC-DC converter with D-CAP3™ control, supporting 1.5 V to 20 V input and 0.6 V to 5.5 V output. It integrates 9.9-mΩ high-side and 4.3-mΩ low-side MOSFETs, features 600-mV ±0.5% reference voltage, and operates in FCCM or auto-skipping Eco-Mode™ for FPGA and DSP point-of-load power delivery.
For engineers reviewing the TPS548A20RVER datasheet, TPS548A20RVER pinout, TPS548A20RVER application, or TPS548A20RVER equivalent, key selection factors include its 28-pin VQFN-CLIP package, eight selectable switching frequencies (200 kHz–1 MHz), hiccup overcurrent protection, pre-biased startup capability, and support for all-ceramic output capacitors without external compensation.
Technical Context
The TPS548A20RVER implements adaptive on-time D-CAP3™ control using internal ramp generation tied to MODE pin configuration, enabling fast load-step response without external loop compensation. Its architecture embeds emulated current sensing via ripple injection, eliminating need for current-sense resistors or RC networks.
It supports dual operating modes: forced continuous conduction mode (FCCM) for tight regulation in performance computing loads, and auto-skipping Eco-Mode™ for high light-load efficiency. The MODE pin selects both operation mode and internal R-C time constant-critical for stability across wide output capacitance ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 15 A continuous - supports high-current POL rails for FPGAs and multi-core processors |
| Input Voltage Range | 1.5 V to 20 V - accommodates wide-input industrial and server bus voltages with snubber |
| Output Voltage Range | 0.6 V to 5.5 V - covers core, I/O, and auxiliary rail requirements with 600 mV ±0.5% reference |
| Switching Frequency | 200 kHz to 1 MHz (8 settings) - enables optimization of size, efficiency, and EMI via RF resistor |
| MOSFET RDS(on) | 9.9 mΩ (HS) / 4.3 mΩ (LS) - minimizes conduction loss at 15-A load, enabling compact thermal design |
| Control Mode | D-CAP3™ with adaptive on-time - delivers sub-µs transient response and eliminates external compensation |
| Package | 4.5 mm × 3.5 mm, 28-pin VQFN-CLIP - exposes thermal pad for direct PCB heat sinking and low θJB = 18.1°C/W |
Pinout & Package
TPS548A20RVER uses a thermally enhanced 28-pin VQFN-CLIP (4.5 mm × 3.5 mm) package with exposed thermal pad (pin 28) connected to PGND. Pin numbering follows standard QFN top-view layout; GND, PGND, VIN, and SW pins are multiplexed for low-impedance power routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RF) | Frequency setting input | Resistor-connected pin that sets switching frequency from 200 kHz to 1 MHz in 8 discrete steps |
| 2 (PGOOD) | Open-drain power-good output | Asserts high after soft-start when FB is within ±8% of target; deasserts within 2 µs if out of ±16% |
| 3 (EN) | Enable input | Active-high logic input with 1.3–1.5 V threshold; enables converter only when above VENH |
| 4 (VBST) | Bootstrap supply rail | Supplies high-side gate driver; requires external capacitor between VBST and SW nodes |
| 6–9, 15–17, 20 (SW, VIN, VREG) | Power switching/output terminals | Multiple parallel VIN/SW pins reduce trace inductance; VREG provides internal 5-V LDO for bias |
| 10–14, 22, 27–28 (PGND, GND, GND1, GND2) | Ground return paths | Dedicated PGND pins carry high di/dt return current; analog GND and thermal pad ensure noise isolation |
| 23 (FB) | Voltage feedback input | Connects to resistor divider from VO to PGND; senses output with 600-mV reference and 100-nA input bias |
| 25 (TRIP) | Overcurrent limit threshold | Sets valley OCL trip point via external resistor; sources 10 µA with 3000 ppm/°C tempco |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP3™ control | Eliminates external compensation components and enables stable operation with all-ceramic output capacitors |
| FCCM / Eco-Mode™ selection | MODE pin configures forced CCM for tight regulation or auto-skip for >90% efficiency at light loads |
| Hiccup overcurrent protection | Shuts down and auto-retries on sustained overcurrent, preventing thermal runaway during fault conditions |
| Pre-biased startup | Allows safe start-up into pre-charged output rails without reverse current flow or output voltage overshoot |
| Integrated 5-V VREG LDO | Supplies internal circuitry and gate drivers; delivers up to 200 mA with <365-mV dropout at 30 mA load |
| Thermal pad + CLIP construction | Exposed copper pad and internal copper clips reduce junction-to-board thermal resistance to 18.1°C/W |
Applications
| Server Core Voltage Regulation | Telecom Point-of-Load Supply |
|---|---|
|
Use Scenario: Delivering 1.2 V @ 12 A to high-performance CPU cores in 1U rack servers with strict thermal envelope. IC Role / Device Role / Timing Role: Primary synchronous buck regulator implementing D-CAP3™ closed-loop control with 600-mV reference and adaptive on-time modulation. Use Value: Achieves <1.5% DC load regulation and sub-50-ns transient response while maintaining >92% efficiency at full load-enabling dense, fanless compute modules. |
Use Scenario: Generating 3.3 V @ 8 A for packet-processing ASICs in telecom line cards with variable load profiles. IC Role / Device Role / Timing Role: High-efficiency POL converter operating in FCCM mode to meet tight ±1% output tolerance under dynamic traffic loads. Use Value: Delivers 94% peak efficiency and <20-µVpp output ripple at 500 kHz, reducing downstream filtering and meeting GR-1089 EMI limits. |
| FPGA I/O Bank Power | Industrial PLC Digital Logic Rail |
|
Use Scenario: Supplying 1.8 V @ 10 A to FPGA I/O banks requiring fast transient recovery during high-speed interface toggling. IC Role / Device Role / Timing Role: Adaptive on-time buck controller with programmable frequency and MODE-selectable ramp coefficient for optimal phase margin. Use Value: Maintains <±10 mV output deviation during 8-A load steps (2 A/µs), eliminating need for large bulk capacitance and saving board space. |
Use Scenario: Providing robust 5.0 V @ 6 A to microcontroller, CAN transceiver, and sensor interface circuits in factory automation controllers. IC Role / Device Role / Timing Role: Industrial-grade DC-DC converter with hiccup OCP, –40°C to 125°C ambient rating, and undervoltage lockout on VDD/VREG. Use Value: Ensures reliable startup and shutdown sequencing across wide input range (12–24 V DC), with 1-ms PGOOD delay for system-level power sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS546A24RVER | Higher 24-A rating, 1.5–16 V input, same 28-pin VQFN-CLIP package but different pinout (no TRIP pin, added VSENSE) | Targeted at higher-current GPU and AI accelerator rails; lacks TRIP-based OCL programming flexibility | Select TPS546A24RVER only when ≥20-A output and tighter input voltage range (1.5–16 V) are required; not pin-compatible |
| MP28164GQVA-LF-Z | Monolithic 16-A buck with 2.5–18 V input, 0.6–5.5 V output, but uses current-mode control and requires external compensation | Designed for cost-sensitive industrial applications; lower integration (no integrated VREG LDO or D-CAP3™) | Choose MP28164GQVA-LF-Z where BOM cost is prioritized over design simplicity and transient performance |
Compared with TPS548A20RVER, TPS546A24RVER offers higher current capacity but sacrifices OCL configurability and pin compatibility, while MP28164GQVA-LF-Z trades off control-loop simplicity and integrated biasing for lower unit cost-making TPS548A20RVER optimal for space-constrained, high-transient FPGA/DSP POL designs requiring minimal external components.
Availability
TPS548A20RVER is available at Aetrix Electronics and suitable for server power delivery, telecom point-of-load conversion, and industrial PLC power management requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS548A20RVER 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 system-level power architecture.
The TPS548A20RVER belongs to TI's SWIFT™ synchronous buck converter family, engineered specifically for high-current, low-voltage point-of-load applications in datacenter, networking, and industrial computing systems demanding fast transient response and minimal external components.
FAQ
What is the recommended input voltage range for reliable operation of the TPS548A20RVER?
The TPS548A20RVER supports a nominal input voltage range of 1.5 V to 20 V for power conversion, with an additional 4.5 V to 25 V bias range for the VDD pin. Operation below 1.5 V or above 20 V on VIN requires external snubbing; VDD must remain within 4.5–25 V to sustain internal LDO and gate drive functionality. The TPS548A20RVER datasheet specifies –0.1 V to 20 V as the recommended operating range for VIN under all ambient conditions.
Does the TPS548A20RVER support pre-biased output startup?
Yes, the TPS548A20RVER supports pre-biased startup, allowing safe turn-on when the output rail is already charged. This feature prevents reverse current flow through the low-side MOSFET by disabling the high-side switch until the internal soft-start ramp exceeds the sensed output voltage. Verified in Figures 22–23 of the TPS548A20RVER datasheet, this behavior ensures no output voltage overshoot or latch-up during hot-insertion scenarios.
How is overcurrent protection configured on the TPS548A20RVER?
Overcurrent protection on the TPS548A20RVER is configured via the TRIP pin (pin 25), which sources a temperature-compensated 10-µA current. An external resistor from TRIP to PGND sets the valley current limit threshold-e.g., 49 kΩ yields 15-A nominal OCL. The device implements hiccup-mode protection: upon trip, it disables switching, waits ~10 ms, then retries. No external sense resistor or comparator is required due to integrated valley-current detection.
Can the TPS548A20RVER operate without external compensation components?
Yes, the TPS548A20RVER operates without external compensation thanks to its D-CAP3™ control architecture. The internal ripple generation network emulates inductor current ripple, enabling stable closed-loop regulation using only the FB resistor divider. This eliminates the need for Type-II or Type-III compensation networks-verified across 0.6–5.5 V outputs and 200 kHz–1 MHz frequencies in TI's application notes and EVM test reports.
What thermal performance can be expected from the TPS548A20RVER in a typical 4-layer PCB layout?
In a standard 4-layer PCB with 2 oz copper, 1-in² thermal pad area, and 200 LFM airflow, the TPS548A20RVER achieves ≤100°C junction temperature at 12 A/1.2 V output (VIN = 12 V, fSW = 500 kHz). Its θJB = 18.1°C/W and exposed thermal pad enable direct heat transfer to inner ground planes. Figure 30 in the TPS548A20RVER datasheet confirms 68.2°C case temperature under these conditions-well below the 140°C thermal shutdown threshold.
TPS548A20RVER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™, D-CAP3™, Eco-Mode™
- Package/Case:
- 28-VFQFN Exposed Pad
- 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):
- 1.5V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 15A
- Frequency - Switching:
- Selectable
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-VQFN-CLIP (4.5x3.5)
TPS548A20RVER FAQ
1.How can I place an order for TPS548A20RVER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS548A20RVER 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 TPS548A20RVER reliable?
The price and inventory of TPS548A20RVER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS548A20RVER is usually 5 days.
3.What payment methods are accepted for TPS548A20RVER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS548A20RVER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS548A20RVER?
TPS548A20RVER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS548A20RVER 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 TPS548A20RVER?
For technical support, including TPS548A20RVER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS548A20RVER requirements.
6.How does Aetrix verify that TPS548A20RVER is sourced from the original manufacturer or authorized distributors?
All TPS548A20RVER 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 TPS548A20RVER meets industry standards.
7.What is the process for return or replacement of TPS548A20RVER?
All TPS548A20RVER units undergo pre-shipment inspection (PSI). If there is an issue with TPS548A20RVER, 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 TPS548A20RVER part is unused and in its original packaging.
Return procedure for TPS548A20RVER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS548A20RVER 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…
