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Texas Instruments TPS626751YFDR
- Part No.:
- TPS626751YFDR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS626751YFDR.pdf
- Description:
- IC REG BUCK 1.2V 650MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,676
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Product details
Overview
TPS626751YFDR from Texas Instruments is a high-frequency synchronous step-down DC-DC converter optimized for ultra-low-power battery-powered applications. It delivers 1.2 V at up to 650 mA output current, operates from 2.3 V to 4.8 V input, achieves 92% efficiency at 6 MHz switching frequency, and features 17 µA quiescent current in PFM mode-enabling extended runtime in smartphones and CMOS camera modules.
For engineers reviewing the TPS626751YFDR datasheet, TPS626751YFDR pinout, TPS626751YFDR application, or TPS626751YFDR equivalent, key selection criteria include its 6-MHz regulated PWM/PSM operation, ±2% total DC voltage accuracy, spread-spectrum noise reduction, 0.4-mm max height NanoFree™ CSP package, and support for external clock presence detection.
Technical Context
The TPS626751YFDR uses a frequency-locked ring-oscillating modulator architecture with no traditional compensated feedback loop-enabling instantaneous transient response and eliminating need for external compensation. Its dual-mode operation (PFM at light load, PWM at heavy load) maintains high efficiency across 0–650 mA load range while supporting low-noise regulation via spread-spectrum dithering.
It integrates P-channel and N-channel MOSFETs with typical rDS(on) of 170 mΩ and 120 mΩ respectively at 3.6 V, includes an internal 70–150 Ω discharge resistor for controlled power-down, and supports logic-level enable and MODE pin control for forced-PWM or auto-switching operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2% DC accuracy over full load and temperature range-ensures stable core supply for low-voltage processors and sensors. |
| Max Output Current | 650 mA continuous-supports demanding digital subsystems like image signal processors in compact mobile modules. |
| Input Voltage Range | 2.3 V to 4.8 V-fully compatible with single-cell Li-ion batteries across full discharge curve including extended low-voltage operation. |
| Switching Frequency | 6 MHz nominal (5.4–6.6 MHz range)-enables use of sub-1-µH chip inductors and <10 mm² total solution size. |
| Quiescent Current | 17 µA typical in PFM mode-minimizes standby power loss in always-on sensor or RF subsystems. |
| PSRR | ≥35 dB from 1 kHz to 10 kHz-rejects noise from noisy system rails without requiring additional LDO post-regulation. |
| Package | 6-pin DSBGA (NanoFree™), 1.22 mm × 0.85 mm, 0.4 mm max height-meets stringent thickness requirements for slim handheld devices. |
Pinout & Package
TPS626751YFDR is housed in a 6-pin DSBGA (NanoFree™) package with 0.4 mm maximum height, 1.22 mm × 0.85 mm body size, and bottom-side solder ball termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to output node; sets regulation point via internal 0.6-V reference-no external resistor divider required for fixed-output variants. |
| VIN (A2) | Power input | Accepts 2.3–4.8 V; requires local 2.2-µF ceramic decoupling capacitor to suppress high-frequency switching noise. |
| SW (B1) | Switch node | Drain connection of internal P/N-MOSFET pair; interfaces with external 0.47-µH inductor-must be routed with minimal loop area. |
| EN (B2) | Enable input | Active-high logic control; pulling to GND disables device (0.2–1 µA shutdown current); supports automatic wake-up on external clock detection. |
| MODE (A1) | Mode selection | Low = auto PFM/PWM transition; High = forced PWM for constant-frequency, low-noise operation-must be terminated, not floating. |
| GND (C2) | Ground reference | Primary return path for power and control circuits; requires solid thermal pad connection to PCB ground plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| 6-MHz regulated switching | Enables use of 0.47-µH chip inductors and 0402 MLCCs-reducing solution footprint to <10 mm² and height to <0.33 mm. |
| Spread-spectrum PWM dithering | Reduces peak EMI by spreading fundamental switching energy across ~200-kHz bandwidth-simplifies EMC compliance in dense RF layouts. |
| Output discharge function | Internal 70–150 Ω pull-down activates during shutdown-ensures rapid, controlled VOUT ramp-down to prevent back-powering of downstream circuitry. |
| Best-in-class transient response | No traditional compensation loop enables sub-10-µs recovery from 50% load steps-critical for burst-mode processors and camera autofocus actuators. |
| Ultra-low IQ in PFM mode | 17 µA quiescent current extends battery life in sleep states-e.g., doubles standby time vs. conventional 600-kHz buck converters in wearable sensors. |
Applications
| Smartphone Application Processor Core Rail | CMOS Camera Module Power |
|---|---|
Use Scenario: Powers ARM Cortex-A series CPU cores requiring tightly regulated 1.2 V at dynamic loads up to 650 mA during video encoding. IC Role / Device Role / Timing Role: Primary buck regulator delivering low-noise, fast-transient power with spread-spectrum operation to avoid interference with cellular RF bands. Use Value: Eliminates need for secondary LDO filtering due to ≥35 dB PSRR and 16 mVPP PFM ripple-reducing BOM count and board area. |
Use Scenario: Supplies image sensor and ISP in mobile phone rear cameras, where rapid load transients occur during auto-focus and flash LED activation. IC Role / Device Role / Timing Role: High-bandwidth step-down converter with instantaneous load-step response and controlled power-down discharge. Use Value: Prevents image artifacts from VOUT droop during 100–500 mA load jumps; discharge resistor ensures clean reset between capture frames. |
| Bluetooth/WLAN Coexistence Subsystem | Digital TV Tuner IC Supply |
Use Scenario: Powers dual-mode Bluetooth 5.0 + Wi-Fi 4/5 combo ICs sharing same PCB region, requiring low EMI and minimal coupling into RF front-end. IC Role / Device Role / Timing Role: Noise-aware power source using spread-spectrum modulation and 6-MHz switching to shift harmonics away from 2.4 GHz ISM band. Use Value: Reduces conducted EMI by >10 dB at critical 2.4 GHz harmonics-avoiding costly shielding or layout rework in compact modules. |
Use Scenario: Supplies digital demodulator and MPEG decoder ICs in portable DVB-T/T2 receivers operating from single Li-ion cell. IC Role / Device Role / Timing Role: Efficient, thin-profile DC-DC converter maintaining 1.2 V under wide input variation (2.3–4.8 V) as battery discharges. Use Value: Delivers >90% efficiency across full battery range-extending playback time by 18% vs. linear regulators in 3.7 V nominal systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62675YFD | Same 1.2 V output and 650 mA rating, but lacks output discharge function; identical pinout and package. | Not suitable for systems requiring controlled VOUT ramp-down during shutdown (e.g., camera modules with shared I/O rails). | Select TPS62675YFD only when discharge is unnecessary and cost minimization is prioritized. |
| TPS626765YFD | 1.05 V fixed output; includes output discharge and spread-spectrum; otherwise identical electrical specs and package. | Designed for lower-core-voltage SoCs (e.g., newer ARM Cortex-M7/M33 microcontrollers), not drop-in replacement for 1.2 V systems. | Choose TPS626765YFD only when target load requires 1.05 V and discharge functionality is needed. |
Compared with TPS626751YFDR, TPS62675YFD omits output discharge-limiting safe use in multi-rail camera systems-while TPS626765YFD shifts output to 1.05 V, requiring schematic revision but enabling next-gen low-voltage SoCs.
Availability
TPS626751YFDR is available at Aetrix Electronics and suitable for smartphone power management, CMOS camera module design, and portable digital TV tuner applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS626751YFDR 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 and embedded processing technologies, with decades of expertise in power management IC design for mobile, industrial, and automotive markets.
The TPS6267x family was engineered specifically for ultra-thin, battery-constrained portable electronics-emphasizing minimal solution height (<0.33 mm), sub-10 mm² footprint, and best-in-class light-load efficiency without sacrificing transient performance.
FAQ
What is the output voltage and tolerance of the TPS626751YFDR?
The TPS626751YFDR provides a fixed 1.2 V output with ±2% total DC voltage accuracy across input voltage (2.3 V to 4.8 V), load current (0–650 mA), and temperature (–40°C to +85°C). This specification is guaranteed per TI's SLVS952G datasheet Section 8.5, ensuring reliable core rail regulation for low-voltage SoCs without external feedback components.
Does the TPS626751YFDR support external clock synchronization?
The TPS626751YFDR does not support external clock synchronization. It features clock presence detection on the EN pin (4–27 MHz range) to automatically wake from shutdown, but it lacks a dedicated SYNC input. Its 6-MHz oscillator is internally regulated and includes spread-spectrum dithering-not externally controllable-making it unsuitable for deterministic phase-aligned multi-rail systems.
What package type and dimensions does the TPS626751YFDR use?
The TPS626751YFDR uses a 6-pin DSBGA (NanoFree™) package with nominal dimensions of 1.22 mm × 0.85 mm and a maximum height of 0.4 mm. This ultra-thin chip-scale package meets IPC-7351B standards and is designed for automated assembly in space-constrained mobile devices, with solder balls on the bottom surface for direct PCB interconnection.
How does the TPS626751YFDR manage efficiency across load conditions?
The TPS626751YFDR uses automatic PFM/PWM mode transition: PFM mode at light loads (≤10 mA) delivers 17 µA quiescent current and >85% efficiency; PWM mode above ~30 mA maintains >90% efficiency up to 650 mA. This dual-mode architecture-documented in Figure 12 of SLVS952G-ensures high efficiency across the full operational range without manual configuration.
Is output discharge functionality present in the TPS626751YFDR?
Yes, the TPS626751YFDR includes integrated output discharge via an internal 70–150 Ω pull-down resistor activated during shutdown. This feature rapidly discharges the output capacitor to prevent back-powering of downstream circuitry-a critical requirement in camera modules and multi-rail SoC designs where uncontrolled VOUT decay could cause latch-up or data corruption.
TPS626751YFDR 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):
- 4.8V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Current - Output:
- 650mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS626751YFDR FAQ
1.How can I place an order for TPS626751YFDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS626751YFDR 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 TPS626751YFDR reliable?
The price and inventory of TPS626751YFDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS626751YFDR is usually 5 days.
3.What payment methods are accepted for TPS626751YFDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS626751YFDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS626751YFDR?
TPS626751YFDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS626751YFDR 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 TPS626751YFDR?
For technical support, including TPS626751YFDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS626751YFDR requirements.
6.How does Aetrix verify that TPS626751YFDR is sourced from the original manufacturer or authorized distributors?
All TPS626751YFDR 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 TPS626751YFDR meets industry standards.
7.What is the process for return or replacement of TPS626751YFDR?
All TPS626751YFDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS626751YFDR, 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 TPS626751YFDR part is unused and in its original packaging.
Return procedure for TPS626751YFDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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