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Texas Instruments TPS62612YFDT
- Part No.:
- TPS62612YFDT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62612YFDT.pdf
- Description:
- IC REG BUCK 1.5V 350MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
TPS62612YFDT from Texas Instruments is a 350-mA, 6-MHz synchronous step-down DC-DC converter in a 6-pin NanoFree™ CSP package (0.4 mm max height), delivering fixed 1.5 V output with ±2% DC accuracy, 90% peak efficiency, and 31 µA quiescent current - optimized for Li-ion-powered portable devices such as smartphones and Bluetooth modules.
For engineers reviewing the TPS62612YFDT datasheet, TPS62612YFDT pinout, TPS62612YFDT application, or TPS62612YFDT equivalent, key selection criteria include its PFM/PWM auto-mode switching, 2.3 V–5.5 V input range, ultra-low profile packaging, and integrated soft-start with 100-ms startup time.
Technical Context
The TPS62612YFDT employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional compensation loops-to achieve instantaneous load/line transient response and inherent stability across ceramic inductor/capacitor combinations. It operates at regulated 6 MHz in PWM mode and transitions to discontinuous-conduction-mode (DCM) PFM at light loads.
Its MODE pin selects between automatic PFM/PWM operation (MODE = LOW) or forced PWM (MODE = HIGH) for low-noise applications; EN enables/disables the device with shutdown current <1 µA; FB senses output voltage via internal 0.8-V reference and 480-kΩ feedback divider.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% DC accuracy ensures stable core logic supply for low-voltage processors and RF ICs. |
| Max Output Current | 350 mA continuous supports dual-core microcontrollers or multi-radio SoCs without external thermal derating. |
| Switching Frequency | 6 MHz (±10%) enables use of sub-1-µH chip inductors and 0402 ceramic capacitors for <10 mm² total solution size. |
| Quiescent Current | 31 µA in PFM mode extends battery runtime in always-on sensor or standby states of portable electronics. |
| Input Voltage Range | 2.3 V to 5.5 V accommodates full discharge curve of single-cell Li-ion (2.7 V–4.2 V) plus margin for USB or adapter inputs. |
| PSRR | 50 dB (1 kHz–10 kHz) suppresses ripple from noisy battery or shared power rails in RF-sensitive receivers. |
| Startup Time | 96 ms with internal soft-start prevents inrush current-induced brownout during cold boot of embedded systems. |
Pinout & Package
TPS62612YFDT uses a 6-pin NanoFree™ chip-scale package (CSP-6, 0.4 mm max height, 0.8 mm × 0.8 mm footprint) with bottom-side solder bumps and no wire bonds - enabling ultra-thin mobile designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to VOUT to regulate output using internal 0.8-V reference; sets 1.5-V output via resistorless fixed-voltage configuration. |
| VIN (A2) | Power input | Accepts 2.3–5.5 V input; supplies bias and switching power; requires local 4.7-µF ceramic decoupling per TI layout guidelines. |
| SW (B1) | Switch node | Drain connection of internal P/N-MOSFET pair; drives external 0.47-µH inductor; high dv/dt node requiring tight loop area. |
| MODE (A1) | Mode control input | Pull LOW for auto PFM/PWM; pull HIGH for forced PWM - enables noise-sensitive analog/RF subsystems to avoid PFM frequency modulation. |
| EN (B2) | Enable input | Active-HIGH logic; must be terminated (not floating); pulls to GND for <1-µA shutdown with active output discharge. |
| GND (C2) | Ground reference | Primary return path for power and control circuits; requires solid thermal pad connection per JEDEC MO-220 standards. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM mode switching | Maintains >85% efficiency from 10 µA to 350 mA load without external mode control circuitry. |
| Integrated active output discharge | 15-Ω internal discharge resistor clears VOUT within milliseconds after shutdown - critical for sequencing in multi-rail systems. |
| Undervoltage lockout (UVLO) | 2.05 V threshold prevents erratic startup or MOSFET shoot-through during battery brownout conditions. |
| Thermal shutdown with hysteresis | 140°C trip with 10°C hysteresis protects against sustained overload in sealed handheld enclosures. |
| Three-component external solution | Requires only one 0603 inductor and two 0402 ceramic capacitors - minimizes BOM count and PCB area. |
Applications
| Smartphone Application | Bluetooth Audio Module |
|---|---|
Use Scenario: Powering application processor I/O and memory interfaces in compact smartphone mainboard. IC Role / Device Role / Timing Role: Primary 1.5-V buck regulator supplying core logic voltage with fast transient response to CPU burst loads. Use Value: 90% efficiency at 6 MHz reduces heat generation in thermally constrained chassis while maintaining ±2% regulation under 350-mA dynamic load steps. | Use Scenario: Supplying digital baseband and audio codec in Bluetooth earbuds with strict height constraints. IC Role / Device Role / Timing Role: Ultra-low-profile 1.5-V power source enabling sub-12-mm-thick wearable form factors. Use Value: 0.4-mm max height CSP package + 10 mm² total solution size meets mechanical envelope requirements without sacrificing efficiency or regulation. |
| GPS Receiver Front-End | DTV Tuner IC Power |
Use Scenario: Delivering clean, low-noise 1.5-V supply to GPS RF front-end LNA and mixer stages. IC Role / Device Role / Timing Role: Low-ripple PFM-mode regulator with 50-dB PSRR suppressing switching noise from adjacent digital blocks. Use Value: Spurious output noise <100 µVPP in PFM mode preserves GPS signal-to-noise ratio and acquisition sensitivity. | Use Scenario: Providing regulated 1.5-V rail to DTV tuner ASIC in set-top box or portable TV. IC Role / Device Role / Timing Role: High-line-transient-rejection buck converter handling rapid input fluctuations from wall adapter or battery sources. Use Value: Best-in-class line transient response limits output deviation to <15 mV during 1-V input steps - preventing tuner lock loss or video artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62615YFDT | Fixed 1.2-V output; identical package, pinout, and electrical specs except output voltage. | Suitable for lower-voltage DSP cores or FPGA I/O banks requiring 1.2 V instead of 1.5 V. | Select when system-level voltage rail requirements mandate 1.2 V with same size, efficiency, and transient performance. |
| TPS62619YFDT | Fixed 1.8-V output; shares identical architecture, CSP-6 package, and 350-mA capability. | Used in higher-voltage RF transceivers or memory interfaces needing 1.8 V with minimal layout change. | Choose for 1.8-V applications where board space, thermal profile, and startup timing must remain unchanged. |
Compared with TPS62615YFDT and TPS62619YFDT, the TPS62612YFDT provides the only 1.5-V fixed-output option in this family - making it essential for mixed-signal SoCs requiring precise mid-range core voltages without external feedback resistors.
Availability
TPS62612YFDT is available at Aetrix Electronics and suitable for smartphone power management, Bluetooth audio subsystems, GPS receiver front-ends, and DTV tuner applications requiring stable component supply and long-term production continuity.
Supply support for TPS62612YFDT 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 technologies - serving automotive, industrial, and consumer markets with high-reliability, high-performance silicon.
The TPS6261x product line was designed specifically for ultra-thin, battery-powered portable electronics - prioritizing sub-0.4-mm profile, 6-MHz high-frequency operation, and automatic PFM/PWM efficiency optimization across wide load ranges.
FAQ
What is the output voltage tolerance of the TPS62612YFDT over temperature and load?
The TPS62612YFDT delivers 1.5 V output with ±2% total DC voltage accuracy across –40°C to 85°C ambient temperature, 2.3 V–5.5 V input, and 0–350 mA load - verified by TI's production test data and confirmed in the SLVS936A datasheet Section 6.5.
Does the TPS62612YFDT require external feedback resistors to set its output voltage?
No, the TPS62612YFDT is a fixed-output device with internally trimmed 1.5-V regulation - no external feedback resistors are needed. The FB pin connects directly to VOUT, and the 0.8-V internal reference and precision resistor network establish the output voltage without user adjustment.
Can the TPS62612YFDT operate from a single-cell Li-ion battery throughout its full discharge cycle?
Yes, the TPS62612YFDT supports 2.3 V–5.5 V input, covering the entire usable range of a single-cell Li-ion battery (2.7 V–4.2 V) with margin for protection circuitry and voltage drops - and remains fully functional down to 2.1 V input per UVLO specification.
How does the MODE pin affect efficiency and noise performance of the TPS62612YFDT?
When MODE = LOW, the TPS62612YFDT automatically switches between high-efficiency PFM (light load) and PWM (heavy load); when MODE = HIGH, it forces fixed-frequency PWM - reducing output noise but lowering light-load efficiency by ~15% due to constant switching losses.
What is the purpose of the internal output discharge function in the TPS62612YFDT?
The TPS62612YFDT integrates a 15-Ω active discharge path between VOUT and GND during shutdown - rapidly clearing residual charge from the output capacitor to prevent back-powering of downstream circuitry and ensure safe, controlled power sequencing in multi-rail systems.
TPS62612YFDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-XFBGA, 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):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 350mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62612YFDT FAQ
1.How can I place an order for TPS62612YFDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62612YFDT 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 TPS62612YFDT reliable?
The price and inventory of TPS62612YFDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62612YFDT is usually 5 days.
3.What payment methods are accepted for TPS62612YFDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62612YFDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62612YFDT?
TPS62612YFDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62612YFDT 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 TPS62612YFDT?
For technical support, including TPS62612YFDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62612YFDT requirements.
6.How does Aetrix verify that TPS62612YFDT is sourced from the original manufacturer or authorized distributors?
All TPS62612YFDT 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 TPS62612YFDT meets industry standards.
7.What is the process for return or replacement of TPS62612YFDT?
All TPS62612YFDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62612YFDT, 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 TPS62612YFDT part is unused and in its original packaging.
Return procedure for TPS62612YFDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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