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Texas Instruments V62/07616-05XE
- Part No.:
- V62/07616-05XE
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
V62/07616-05XE.pdf
- Description:
- IC REG BUCK 3.3V 3A 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,607
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Product details
Overview
TPS54356MPWPREP from Texas Instruments is a radiation-hardened, synchronous buck PWM converter with integrated 100-mΩ high-side MOSFET and external low-side FET support, delivering up to 3 A continuous output current at 3.3 V from 4.5–20 V input. It features 500 kHz fixed switching frequency (RT pin floating), internal slow-start, power-good (PWRGD) monitoring, and 180° out-of-phase synchronization capability for multi-rail systems in defense avionics.
For engineers reviewing the TPS54356MPWPREP datasheet, TPS54356MPWPREP pinout, TPS54356MPWPREP application, or TPS54356MPWPREP equivalent, key selection criteria include its –55°C to 125°C military temperature range, PowerPAD™ TSSOP-16 package thermal performance, UVLO programmability, and compatibility with external low-side MOSFETs for efficiency optimization in space-constrained, high-reliability point-of-load designs.
Technical Context
The TPS54356MPWPREP implements a feed-forward modulator architecture with constant gain (Km = 8) independent of switching frequency, enabling stable transient response across 250–700 kHz operation. Its adaptive dead-time control prevents shoot-through by sequencing LSG and PH driver turn-on based on gate voltage thresholds.
It integrates a precision 0.891-V bandgap reference trimmed during production, error amplifier with 2 MHz unity-gain bandwidth and 60 dB open-loop gain, and bidirectional SYNC I/O supporting both master (output) and slave (input) modes - with falling-edge triggering and 180° phase offset relative to PH rising edge when configured as output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 20 V - supports wide-range DC inputs including 12 V nominal bus and 28 V aircraft systems. |
| Output Voltage | 3.3 V ±1.2% (3.234–3.366 V) at 100 mA–3 A load - tightly regulated for FPGA core logic and DSP I/O rails. |
| Switching Frequency | 500 kHz (RT pin floating) - enables compact magnetics and reduced EMI compared to 250 kHz alternatives. |
| Continuous Output Current | 3 A - sustained delivery without derating at TJ ≤ 125°C in thermally optimized PCB layouts. |
| High-Side rDS(on) | 100 mΩ (typ.) at VIN = 12 V - minimizes conduction loss and improves full-load efficiency (>90% at 3.3 V/3 A). |
| Operating Temperature | –55°C to +125°C - qualified for extended military/aerospace environments per controlled baseline process. |
| UVLO Threshold | Start: 4.49 V, Stop: 3.69 V (default) - ensures reliable startup under brownout conditions in harsh power systems. |
Pinout & Package
TPS54356MPWPREP is housed in a 16-pin PowerPAD™ Thin Shrink Small-Outline Package (HTSSOP-PWP), featuring an exposed thermal pad (PWRPAD) soldered to PCB ground plane for enhanced heat dissipation in high-power-density applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - VIN | Input supply rail | 4.5–20 V primary input; requires local 10-µF ceramic bypass near pins to suppress high-frequency noise. |
| 3 - UVLO | Undervoltage lockout adjust | External resistor divider overrides default start/stop thresholds; internal 320 kΩ/125 kΩ divider sets 4.49 V/3.69 V. |
| 4 - PWRGD | Power-good status indicator | Open-drain output pulled low during faults (VSENSE out-of-bounds, overcurrent, thermal shutdown, UVLO). |
| 5 - RT | Frequency programming | Floating → 500 kHz; grounded → 250 kHz; resistor to AGND → 250–700 kHz - also controls SYNC I/O direction. |
| 6 - SYNC | Bidirectional sync interface | Falling-edge triggered; outputs 180°-out-of-phase signal when RT floating; accepts external clock when RT resistor set. |
| 7 - ENA | Enable control | Logic-high enables regulation; <0.5 V disables switching and resets slow-start; internal pullup eliminates need for external resistor. |
| 8 - COMP | Error amplifier output | Internal compensation node - no external connection permitted; connects to feedback network via VSENSE. |
| 9 - BOOT | Bootstrap capacitor node | Requires 0.1-µF ceramic cap to PH; supplies gate drive voltage for high-side MOSFET above VIN rail. |
| 10 - PH | Phase node | Switching node connecting to external LC filter; carries high di/dt; must be routed with minimal loop area. |
| 11 - PGND | Noisy power ground return | Carries high-current LSG and MOSFET return paths; tied to AGND and PWRPAD for low-impedance grounding. |
| 12 - VBIAS | Internal bias regulator output | Stable ~7.8 V supply for analog circuits and LSG driver; requires 1-µF X7R/X5R ceramic bypass. |
| 13 - LSG | Low-side gate driver output | Drives external n-channel MOSFET gate; 5 Ω typical sink/source resistance at VIN = 12 V. |
| 14, 15 - PH | Phase node (dual-pad) | Shared high-current switching node; dual pins reduce resistance and improve thermal spreading to PWRPAD. |
| 16 - AGND | Analog ground reference | Connects to sensitive internal analog circuitry; must tie to PGND and PWRPAD to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 100-mΩ high-side MOSFET | Enables 3-A continuous output without external high-side switch, reducing BOM count and layout complexity. |
| 180° out-of-phase synchronization | Reduces RMS input ripple current by √2 when two units operate interleaved, cutting required input capacitance by 50%. |
| Internally compensated error amplifier | Eliminates need for external compensation components, simplifying design while maintaining stability across all loads. |
| Programmable undervoltage lockout | Allows precise system-level brownout protection tuning via external resistive divider on UVLO pin. |
| Thermal shutdown with hysteresis | Trips at 165°C with 7°C hysteresis to prevent cycling during overload, ensuring safe fault recovery in sealed enclosures. |
| PowerPAD™ thermal package | Exposed copper pad lowers junction-to-board thermal resistance to 22°C/W, enabling 3-A operation without heatsink. |
Applications
| Avionics Power Distribution | Spacecraft Onboard Computers |
|---|---|
|
Use Scenario: Regulating 3.3 V for flight-critical FPGA configuration memory and sensor interface ICs in satellite payload modules. IC Role / Device Role / Timing Role: Primary point-of-load converter providing tightly regulated, fault-monitored 3.3 V rail with PWRGD signaling to system health monitor. Use Value: Guaranteed operation from –55°C to 125°C and radiation-tolerant design ensure uninterrupted function during orbital thermal cycling and cosmic ray exposure. |
Use Scenario: Supplying 3.3 V to radiation-hardened microprocessors in launch vehicle guidance computers. IC Role / Device Role / Timing Role: Synchronous buck controller managing dynamic load transients during real-time navigation computation bursts. Use Value: Feed-forward modulator with constant gain maintains consistent loop response across input voltage shifts during battery discharge. |
| Military Radar Signal Processing | Medical Imaging Power Subsystem |
|
Use Scenario: Generating clean 3.3 V for high-speed ADCs and digital beamforming ASICs in ground-based radar front ends. IC Role / Device Role / Timing Role: High-efficiency, low-noise DC/DC stage minimizing conducted EMI into sensitive RF receive chains. Use Value: 500 kHz fixed frequency allows predictable EMI filtering design; PowerPAD package reduces thermal stress on multilayer PCBs. |
Use Scenario: Delivering stable 3.3 V to FPGA-based image reconstruction engines in MRI and CT scanner control boards. IC Role / Device Role / Timing Role: Secondary regulated rail supporting deterministic timing-critical data path logic with PWRGD interlock to safety subsystem. Use Value: Internal slow-start (2.9 ms typ.) prevents inrush-induced voltage droop that could corrupt image buffer initialization sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54356-EP | Same silicon, commercial-grade packaging (no controlled baseline/military traceability); rated –40°C to 125°C. | Lacks extended product lifecycle, controlled baseline, and full MIL-STD-883 screening - unsuitable for defense/aerospace deployment. | Select only for non-critical industrial prototypes where cost outweighs long-term supply assurance. |
| LMZ12003TZE/NOPB | Integrated inductor module; 3-A max; 4.5–20 V input; fixed 3.3 V output; no SYNC or UVLO adjustment. | Eliminates external magnetics but offers no synchronization, programmable UVLO, or external low-side FET option. | Choose when board space is paramount and system-level sync/UVLO tuning is unnecessary. |
Compared with TPS54356MPWPREP, TPS54356-EP lacks military qualification and traceability, while LMZ12003TZE/NOPB trades flexibility for integration - making TPS54356MPWPREP the sole choice for synchronized, field-programmable, radiation-aware 3-A buck regulation in mission-critical platforms.
Availability
TPS54356MPWPREP is available at Aetrix Electronics and suitable for defense avionics, spacecraft power management, and medical imaging systems requiring stable component supply across extended product lifecycles and extreme environmental conditions.
Supply support for TPS54356MPWPREP 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 high-reliability power management solutions, with decades of heritage in aerospace and defense component development.
The TPS5435x-EP family was designed specifically for extended-life, high-integrity power conversion in military, aerospace, and medical systems - emphasizing radiation tolerance, temperature resilience, and supply chain transparency.
FAQ
What is the guaranteed operating temperature range for TPS54356MPWPREP?
The TPS54356MPWPREP is fully specified and tested over –55°C to +125°C junction temperature, with qualification per MIL-STD-883 methods and controlled baseline manufacturing to ensure consistency across production lots for defense and aerospace use.
Does TPS54356MPWPREP require an external low-side MOSFET to function?
No - TPS54356MPWPREP operates as a synchronous buck converter using its integrated high-side MOSFET and an optional external low-side MOSFET driven by the LSG pin; however, it can also operate with a Schottky diode from PH to PGND if higher efficiency is not required.
How is the 3.3 V output voltage set on TPS54356MPWPREP?
The TPS54356MPWPREP has a factory-trimmed fixed 3.3 V output; no external feedback resistors are needed. The VSENSE pin connects directly to the output via a short trace, referencing the internal 0.891-V precision bandgap.
Can TPS54356MPWPREP synchronize to an external clock source?
Yes - when a resistor is connected from the RT pin to AGND, the SYNC pin becomes a falling-edge-triggered input accepting external clock frequencies from 225 kHz to 770 kHz, with recommended RT resistor tolerance of ±10% of target sync frequency.
What thermal management is required for TPS54356MPWPREP at 3 A continuous load?
At 3 A and 12 V input, TPS54356MPWPREP dissipates ~1.2 W; the PowerPAD™ package requires a minimum 400 mm² copper pour tied to ≥4 thermal vias (0.3 mm diameter) to inner ground planes to maintain TJ ≤ 125°C in still air.
V62/07616-05XE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 250kHz, 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
V62/07616-05XE FAQ
1.How can I place an order for V62/07616-05XE through Aetrix?
Please submit a Request for Quotation (RFQ) for V62/07616-05XE 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 V62/07616-05XE reliable?
The price and inventory of V62/07616-05XE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for V62/07616-05XE is usually 5 days.
3.What payment methods are accepted for V62/07616-05XE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for V62/07616-05XE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for V62/07616-05XE?
V62/07616-05XE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your V62/07616-05XE 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 V62/07616-05XE?
For technical support, including V62/07616-05XE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your V62/07616-05XE requirements.
6.How does Aetrix verify that V62/07616-05XE is sourced from the original manufacturer or authorized distributors?
All V62/07616-05XE 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 V62/07616-05XE meets industry standards.
7.What is the process for return or replacement of V62/07616-05XE?
All V62/07616-05XE units undergo pre-shipment inspection (PSI). If there is an issue with V62/07616-05XE, 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 V62/07616-05XE part is unused and in its original packaging.
Return procedure for V62/07616-05XE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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