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Texas Instruments TPS62698YFDR
- Part No.:
- TPS62698YFDR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62698YFDR.pdf
- Description:
- IC REG BUCK 3V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
TPS62698YFDR from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter optimized for single-cell Li-Ion battery-powered portable applications. It delivers a fixed 3.0-V output at up to 800 mA, achieves 95% peak efficiency at 3.6-V input, and operates in spread-spectrum PWM mode when MODE pin is high - enabling EMI reduction in noise-sensitive RF subsystems like cellular baseband or WLAN power rails.
For engineers reviewing the TPS62698YFDR datasheet, TPS62698YFDR pinout, TPS62698YFDR application, or TPS62698YFDR equivalent, key selection considerations include its 21-μA quiescent current in PFM mode, ±2% total DC output voltage accuracy over load/line/temperature, integrated active power-down sequencing, and NanoFree™ CSP-6 package with sub-1-mm profile for space-constrained mobile designs.
Technical Context
The TPS62698YFDR employs a frequency-locked ring oscillator architecture that eliminates traditional compensation networks, delivering instantaneous transient response without external loop tuning. Its non-linear control scheme maintains regulated 3-MHz switching across 3.15–4.8-V input while supporting >90% duty cycle operation near dropout.
It integrates dual MOSFETs (P-channel rDS(on) = 165 mΩ typ at 3.6 V; N-channel rDS(on) = 140 mΩ typ), internal soft-start (350 μs), and programmable MODE pin logic: low enables auto PFM/PWM transition; high forces spread-spectrum PWM for EMI suppression - with no external components required beyond one 0402 inductor and two 0402 ceramic capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.0 V ±2% DC accuracy over full load (0–800 mA), line (3.3–4.8 V), and temperature (–40°C to +85°C) range |
| Switching frequency | Regulated 3 MHz (±10% dithered in spread-spectrum PWM mode) - enables use of 0.5–1.8 μH chip inductors and small 0402 MLCCs |
| Quiescent current | 21 μA typical in PFM mode - extends battery life in standby/sleep states of mobile devices |
| Peak efficiency | 95% at 3.6-V input, 2.85-V output (per TPS62693 curve; TPS62698 matches closely per family spec) |
| Thermal resistance | θJA = 132.5°C/W (YFD package) - supports 800-mA continuous output with minimal derating in compact PCB layouts |
| PSRR | ≥40 dB from 1 kHz to 10 kHz - suppresses ripple from noisy battery or shared supply rails |
| Start-up time | 250 μs (5% to 95% of VOUT) - meets fast wake-up timing requirements in application processors |
Pinout & Package
TPS62698YFDR is housed in a 6-pin NanoFree™ (CSP) package (YFD), measuring 1.0 mm × 1.0 mm × 0.55 mm, with bottom-side solder bumps and no leadframe - enabling ultra-low profile integration directly beneath processors or RF modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to output node; sets regulation point via internal 0.8-V reference and resistor divider (not used in fixed-output variants) |
| VIN (A2) | Input power supply | Accepts 3.15–4.8-V input; includes undervoltage lockout (UVLO = 2.1 V) and internal bias generation |
| SW (B1) | Switch node | Drain connection of internal P- and N-channel MOSFETs; requires low-ESR ceramic capacitor and careful layout to minimize EMI |
| MODE (A1) | Operating mode control | Pull low for auto PFM/PWM; pull high for forced spread-spectrum PWM - no external pull-up needed due to internal 100-kΩ weak pull-down |
| EN (B2) | Enable input | Active-high logic; 1-V threshold; drives device into <0.7-μA shutdown state when grounded |
| GND (C2) | Power ground | Primary return path for power and control circuits; must be connected to solid thermal pad on PCB for optimal thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Spread-spectrum PWM modulation | ±10% frequency dithering centered at 3 MHz reduces peak EMI by >10 dB, easing FCC/CE compliance in handheld RF systems |
| Integrated active power-down sequencing | Internal 120-Ω discharge resistor safely collapses output during shutdown - eliminates need for external bleed circuit in battery-backed systems |
| Low-ripple PFM mode | 25 mVPP output ripple at 1-mA load (with 10-μF X5R 0603 cap) - suitable for powering noise-sensitive analog sensors or RF synthesizers |
| Complete sub-1-mm solution | Total footprint <12 mm² using only one 0402 inductor and two 0402 capacitors - enables placement under SoC or PMIC in ultra-thin smartphones |
| High PSRR at audio frequencies | ≥40 dB rejection from 1–10 kHz - prevents audible noise coupling into audio codecs or headset amplifiers |
Applications
| Cellular Baseband Power | WLAN/Bluetooth Coexistence |
|---|---|
Use Scenario: Powers application processor core voltage rail in LTE smartphones operating from single Li-Ion cell (3.3–4.2 V). IC Role / Device Role / Timing Role: Primary buck regulator supplying stable 3.0 V at up to 800 mA with fast load transient response (<10 μs recovery) to handle CPU burst activity. Use Value: Spread-spectrum PWM mode minimizes conducted EMI coupling into adjacent RF front-end, preserving cellular receive sensitivity. | Use Scenario: Supplies 3.0-V bias to dual-band WLAN/BT combo chip sharing same PCB with cellular transceiver. IC Role / Device Role / Timing Role: Low-noise, high-PSRR DC-DC source isolating digital switching noise from sensitive 2.4/5-GHz RF receivers. Use Value: ≥40 dB PSRR at 1–10 kHz prevents digital switching artifacts from modulating RF local oscillators or degrading SNR. |
| Memory Card Interface | LDO Replacement in Portable Audio |
Use Scenario: Powers SDIO interface and NAND flash controller in embedded memory cards or eMMC modules. IC Role / Device Role / Timing Role: High-efficiency step-down converter replacing linear regulator to extend battery runtime during sequential read/write bursts. Use Value: 95% efficiency at 3.6-V input cuts power dissipation by >70% vs. LDO - critical for thermally constrained card form factors. | Use Scenario: Replaces 3.0-V LDO in portable Bluetooth headphones to reduce heat and extend talk time. IC Role / Device Role / Timing Role: Efficient 3.0-V supply for DAC, headphone amplifier, and Bluetooth radio subsystem. Use Value: 21-μA quiescent current in PFM mode preserves battery during music pause/idle - achieving >200-hour standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62693YFDR | Fixed 2.85-V output; identical pinout, package, and feature set except output voltage and marking code (UD vs B7) | Used where 2.85-V supply is required for specific memory or sensor interfaces | Select TPS62693YFDR only when system-level voltage tolerance mandates 2.85 V - otherwise TPS62698YFDR's 3.0 V better matches standard I/O rails. |
| TPS62694YFDR | Fixed 2.95-V output; same CSP-6 package, MODE/EN logic, and spread-spectrum capability; differs only in feedback divider ratio | Targeted at applications needing tighter margin between 2.85-V and 3.0-V rails - e.g., certain DDR I/O or low-voltage FPGAs | Choose TPS62694YFDR if system validation confirms 2.95-V improves timing margin without violating minimum VDDIO specs. |
Compared with TPS62693YFDR and TPS62694YFDR, the TPS62698YFDR provides the highest nominal output (3.0 V) within the family - simplifying power tree design for systems with standardized 3.0-V I/O domains while maintaining identical board layout, thermal behavior, and EMI performance.
Availability
TPS62698YFDR is available at Aetrix Electronics and suitable for cellular baseband, WLAN coexistence, memory card interface, and portable audio applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62698YFDR 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-frequency DC-DC conversion for portable electronics.
The TPS6269x product line was designed specifically for ultra-compact, battery-powered mobile devices requiring high efficiency at light loads, low EMI, and minimal solution size - targeting smartphone, tablet, and wearable power architectures.
FAQ
What is the recommended input voltage range for reliable operation of the TPS62698YFDR?
The TPS62698YFDR is specified for continuous operation across an input voltage range of 3.15 V to 4.8 V. Operation below 3.15 V may trigger undervoltage lockout (UVLO threshold = 2.1 V), while sustained input above 4.8 V is not recommended and may impact long-term reliability. The device supports 100% duty cycle near dropout, enabling usable operation down to ~3.05 V input when delivering 3.0 V at full load.
Does the TPS62698YFDR require external compensation components?
No, the TPS62698YFDR does not require external compensation components. Its frequency-locked ring oscillator architecture eliminates the need for traditional Type-II or Type-III compensation networks. Stability is inherent across the full range of supported inductors (0.5–1.8 μH) and output capacitors (1–10 μF), verified per TI's SLVSAZ1 datasheet test conditions.
How does the MODE pin affect EMI performance in the TPS62698YFDR?
When the MODE pin is pulled high, the TPS62698YFDR enters forced spread-spectrum PWM mode, dithering its 3-MHz switching frequency by ±10% using a triangle-profile modulation. This spreads harmonic energy across a ~600-kHz bandwidth, reducing peak radiated and conducted emissions by >10 dB - directly improving compliance with CISPR 22/32 Class B limits in handheld RF products.
What is the maximum continuous output current capability of the TPS62698YFDR?
The TPS62698YFDR supports a maximum continuous output current of 800 mA under recommended operating conditions (TA ≤ 85°C, θJA = 132.5°C/W, 3.3–4.8-V input). Current limit is internally set to 900 mA in closed-loop operation and 1100–1250 mA in open-loop - providing robust short-circuit protection without external sensing.
Can the TPS62698YFDR be used as a direct replacement for an LDO in existing designs?
Yes, the TPS62698YFDR can replace many 3.0-V LDOs in battery-powered systems - especially where efficiency, thermal constraints, or battery life are critical. Its fixed 3.0-V output, 21-μA quiescent current in PFM mode, and integrated soft-start (350 μs) enable drop-in substitution in most cases, though layout must accommodate the SW node and inductor. No changes to output voltage setting or feedback network are needed.
TPS62698YFDR 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):
- 3V
- 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
TPS62698YFDR FAQ
1.How can I place an order for TPS62698YFDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62698YFDR 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 TPS62698YFDR reliable?
The price and inventory of TPS62698YFDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62698YFDR is usually 5 days.
3.What payment methods are accepted for TPS62698YFDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62698YFDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62698YFDR?
TPS62698YFDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62698YFDR 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 TPS62698YFDR?
For technical support, including TPS62698YFDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62698YFDR requirements.
6.How does Aetrix verify that TPS62698YFDR is sourced from the original manufacturer or authorized distributors?
All TPS62698YFDR 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 TPS62698YFDR meets industry standards.
7.What is the process for return or replacement of TPS62698YFDR?
All TPS62698YFDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62698YFDR, 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 TPS62698YFDR part is unused and in its original packaging.
Return procedure for TPS62698YFDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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