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Texas Instruments TPS62693YFDT
- Part No.:
- TPS62693YFDT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62693YFDT.pdf
- Description:
- IC REG BUCK 2.85V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:905
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Product details
Overview
TPS62693YFDT from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter optimized for single-cell Li-ion battery-powered portable electronics. It delivers a fixed 2.85 V output at up to 800 mA, achieves 95% peak efficiency, maintains ±2% DC voltage accuracy, and operates in spread-spectrum PWM or automatic PFM/PWM mode - ideal for mobile phone power rails requiring ultra-small footprint and low-noise regulation.
For engineers reviewing the TPS62693YFDT datasheet, TPS62693YFDT pinout, TPS62693YFDT application, or TPS62693YFDT equivalent, key selection criteria include its 21 µA quiescent current in PFM mode, 3-MHz regulated switching frequency with dithering, 6-pin NanoFree™ CSP package, and integrated soft-start and power-down sequencing - all critical for battery life, EMI compliance, and system-level power integrity in space-constrained handheld devices.
Technical Context
The TPS62693YFDT employs a frequency-locked ring oscillator modulator architecture that eliminates traditional compensation loops, enabling instantaneous load/line transient response without external stability components. Its non-linear control scheme inherently supports wide ranges of inductor (0.5–1.8 µH) and output capacitor (1–10 µF) values while maintaining stable operation.
It features dual-mode operation: automatic PFM/PWM mode (MODE = LOW) for high light-load efficiency, and forced PWM mode (MODE = HIGH) with ±10% spread-spectrum dithering to reduce EMI peaks. The device integrates active power-down sequencing with a 120 Ω discharge resistor and supports 100% duty-cycle operation down to VIN = VOUT + 0.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% DC accuracy - ensures stable core logic or RF IC supply without external feedback resistors. |
| Max Output Current | 800 mA peak - supports high-pulse loads in cellular transceivers and application processors. |
| Switching Frequency | 3 MHz (±10% dithered in PWM mode) - enables use of sub-1-mm 0402 MLCCs and 2012 chip inductors for <12 mm² total solution size. |
| Quiescent Current | 21 µA typical in PFM mode - extends battery runtime during standby/sleep states in always-on subsystems. |
| Input Voltage Range | 2.3 V to 4.8 V - compatible with fully charged (4.2 V) to deeply discharged (2.8 V) single Li-ion cells. |
| Thermal Shutdown | 140 °C with 10 °C hysteresis - protects against sustained overload or poor PCB thermal design in sealed enclosures. |
| PSRR | ≥40 dB from 1 kHz to 10 kHz - suppresses noise coupling from noisy digital supplies into sensitive analog/RF rails. |
Pinout & Package
TPS62693YFDT is housed in a 6-pin NanoFree™ (CSP) package measuring 1.0 mm × 1.0 mm × 0.5 mm - the smallest available footprint for this performance class, enabling integration directly beneath processors or in camera modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Internally connected to 2.85 V reference; no external resistor divider required - simplifies layout and eliminates trimming errors. |
| VIN (A2) | Power input | Accepts 2.3–4.8 V; requires local 2.2 µF ceramic decoupling (0402) close to pin for high-frequency noise suppression. |
| SW (B1) | Switch node | Drain connection of internal P/N-MOSFET pair; must be routed with minimal loop area to reduce EMI and switching losses. |
| MODE (A1) | Operating mode control | Pull to GND for auto PFM/PWM; pull to VI for forced spread-spectrum PWM - enables dynamic noise/efficiency trade-off at runtime. |
| EN (B2) | Enable input | Active-high logic; 1 V threshold allows direct interfacing with 1.8 V GPIOs; internal pull-down ensures safe shutdown on power-up. |
| GND (C2) | Power ground | Must be connected to solid thermal pad under die; serves as return path for both power and control circuits - critical for thermal performance and ripple rejection. |
Key Features
| Feature | Design Value |
|---|---|
| Spread-spectrum PWM dithering | ±10% frequency modulation reduces peak EMI by >10 dB - eliminates need for ferrite beads or LC filters in cellular front-end power rails. |
| Integrated soft-start | 350 µs controlled ramp-up prevents inrush current and output overshoot - avoids brownout resets during processor boot. |
| Active power-down sequencing | 120 Ω internal discharge path safely collapses VOUT when disabled - prevents floating bias conditions in downstream LDOs or level shifters. |
| Ultra-low quiescent current | 21 µA in PFM mode sustains >72-hour battery life in 10 µA sleep-current systems - essential for IoT sensor nodes and wearable standby modes. |
| Sub-1-mm solution profile | Total bill-of-materials fits within 12 mm² including 2012 inductor and two 0402 capacitors - enables placement under display bezels or inside compact camera modules. |
Applications
| Mobile Phone Baseband Power | Wi-Fi/Bluetooth Coexistence Module |
|---|---|
Use Scenario: Powers application processor I/O and memory interface rails in LTE smartphones operating from a single Li-ion cell. IC Role / Device Role / Timing Role: Primary buck regulator delivering clean, tightly regulated 2.85 V at up to 800 mA peak during burst data transmission. Use Value: 95% efficiency at 3 MHz minimizes heat generation near touchscreens; spread-spectrum mode meets 3GPP radiated emission limits without shielding. | Use Scenario: Supplies dual-band WLAN/BT combo chip in ultra-thin tablets where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Fixed-output step-down converter providing low-noise 2.85 V to RF transceivers and baseband logic simultaneously. Use Value: ≥40 dB PSRR suppresses digital switching noise from nearby SoC; 21 µA quiescent current extends battery life during Bluetooth LE advertising intervals. |
| Smartphone Camera Module | Memory Card Interface Regulator |
Use Scenario: Powers image signal processor (ISP) and CMOS sensor in rear-facing camera modules with strict height and EMI requirements. IC Role / Device Role / Timing Role: Compact, low-profile DC-DC converter delivering 2.85 V with fast transient response to handle autofocus motor current spikes. Use Value: Best-in-class load transient response eliminates image artifacts; 1.0 mm × 1.0 mm CSP footprint fits beneath lens barrels without raising Z-height. | Use Scenario: Regulates power to SD/microSD card controllers in portable media players and action cameras. IC Role / Device Role / Timing Role: High-efficiency buck converter replacing linear regulators to extend playback time while maintaining voltage stability during card read/write bursts. Use Value: 800 mA capability handles simultaneous multi-lane UHS-I transfers; PFM mode reduces idle power draw below 50 µW - critical for long-duration recording. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62692YFDT | Fixed 2.2 V output; identical package, pinout, and feature set. | Suitable for lower-voltage I/O domains (e.g., LPDDR2 interfaces) rather than 2.85 V logic rails. | Select when system requires 2.2 V instead of 2.85 V - no layout change needed. |
| TPS62694YFDT | Fixed 2.95 V output; same CSP-6 package and functional specifications. | Targets higher-voltage analog peripherals (e.g., audio codecs, GPS receivers) needing tighter regulation near 3.0 V. | Choose for 2.95 V applications - shares identical thermal, EMI, and layout behavior. |
Compared with TPS62692YFDT and TPS62694YFDT, the TPS62693YFDT provides the precise 2.85 V required for modern application processor I/O and memory interface standards, balancing noise immunity, efficiency, and compatibility with JEDEC-compliant voltage tolerances - making it the optimal choice for mainstream smartphone baseband power.
Availability
TPS62693YFDT is available at Aetrix Electronics and suitable for mobile phone baseband power, Wi-Fi/Bluetooth coexistence modules, and smartphone camera module designs requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for TPS62693YFDT 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, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS6269x family was designed specifically for ultra-compact, battery-powered handheld devices - prioritizing minimal solution size, best-in-class light-load efficiency, and EMI-optimized spread-spectrum operation without sacrificing transient performance.
FAQ
What is the recommended input capacitor for TPS62693YFDT?
The TPS62693YFDT datasheet specifies a 2.2 µF X5R 6.3 V 0402 ceramic capacitor (e.g., Murata GRM155R60J225ME15) placed as close as possible to the VIN and GND pins. This value ensures sufficient high-frequency charge reservoir for the 3-MHz switching cycle while fitting the sub-1-mm form factor. Larger capacitance does not improve performance and may degrade stability due to ESL effects.
Does TPS62693YFDT require external feedback resistors?
No, the TPS62693YFDT has an internally trimmed 2.85 V reference connected to the FB pin - no external resistor divider is needed. The FB pin is used solely for sensing the output voltage and must be connected directly to the VOUT net. Adding external resistors would disrupt the factory-calibrated regulation and cause significant output voltage error.
How does the MODE pin affect efficiency and noise in TPS62693YFDT?
When MODE is pulled LOW, the TPS62693YFDT operates in automatic PFM/PWM mode - achieving 21 µA quiescent current at light loads for maximum battery life. When MODE is pulled HIGH, it forces fixed-frequency spread-spectrum PWM mode, reducing peak EMI by ~10 dB but increasing light-load quiescent current to 3.5 mA. The choice depends on whether system priority is runtime or EMI compliance.
What thermal derating applies to TPS62693YFDT at 800 mA output?
With its 132.5 °C/W junction-to-ambient thermal resistance (YFD package), the TPS62693YFDT reaches ~105 °C junction temperature at 800 mA and 3.6 V input under typical PCB conditions (2-layer, 1 oz Cu). To maintain reliability, ambient temperature should be limited to ≤65 °C at full load, or copper pour and thermal vias must be added beneath the CSP pad to reduce θJA below 80 °C/W.
Can TPS62693YFDT replace an LDO in a noise-sensitive application?
Yes - the TPS62693YFDT is explicitly positioned as an LDO replacement in the datasheet. Its ≥40 dB PSRR from 1–10 kHz, low 25 mVPP ripple in power-save mode, and spread-spectrum PWM option make it suitable for powering RF receivers, audio codecs, and precision ADCs where linear regulators were previously mandated - while delivering 3× higher efficiency and eliminating thermal bottlenecks.
TPS62693YFDT 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):
- 2.85V
- Voltage - Output (Max):
- -
- Current - Output:
- 800mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62693YFDT FAQ
1.How can I place an order for TPS62693YFDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62693YFDT 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 TPS62693YFDT reliable?
The price and inventory of TPS62693YFDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62693YFDT is usually 5 days.
3.What payment methods are accepted for TPS62693YFDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62693YFDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62693YFDT?
TPS62693YFDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62693YFDT 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 TPS62693YFDT?
For technical support, including TPS62693YFDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62693YFDT requirements.
6.How does Aetrix verify that TPS62693YFDT is sourced from the original manufacturer or authorized distributors?
All TPS62693YFDT 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 TPS62693YFDT meets industry standards.
7.What is the process for return or replacement of TPS62693YFDT?
All TPS62693YFDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62693YFDT, 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 TPS62693YFDT part is unused and in its original packaging.
Return procedure for TPS62693YFDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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