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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsTPS62690YFFT
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TPS62690YFFT - Texas Instruments

Manufacturer Part Number
TPS62690YFFT
Manufacturer
Texas Instruments
Allelco Part Number
98D-TPS62690YFFT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
34,555 pcs available, New & Original
Parts Description
IC REG BUCK 2.85V 500MA 6DSBGA
Package
6-DSBGA
Data sheet
TPS62690YFFT.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 34555
  • Unit Price: $1.208
  • Subtotal: $0.00

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The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TPS62690YFFT Tech Specifications
Texas Instruments - TPS62690YFFT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS62690YFFT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Output (Min/Fixed) 2.85V
Voltage - Output (Max) -
Voltage - Input (Min) 2.3V
Voltage - Input (Max) 4.8V
Topology Buck
Synchronous Rectifier Yes
Supplier Device Package 6-DSBGA
Series -
Package / Case 6-UFBGA, DSBGA
Product Attribute Attribute Value
Package Tape & Reel (TR)
Output Type Fixed
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Number of Outputs 1
Mounting Type Surface Mount
Function Step-Down
Frequency - Switching 4MHz
Current - Output 500mA
Base Product Number TPS62690

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the TPS62690YFFT compare to other 4MHz buck regulators in terms of efficiency at light loads, and what design implications does this have for battery-powered applications?
The TPS6290YFFT achieves approximately 85% efficiency at 100mA output current with a 3.3V input, which is competitive among 4MHz regulators. However, when compared to newer devices like the TPS62840 that feature pulse-skipping or burst-mode operation, the TPS6290YFFT's fixed-frequency PWM architecture leads to higher switching losses at very light loads—typically around 75% efficiency at 10mA. For battery-powered designs requiring long idle times, this may necessitate external synchronization or selection of a different topology to minimize quiescent current. The 4MHz switching frequency enables use of smaller inductors (e.g., 2.2µH vs. 4.7µH at lower frequencies), but at the cost of increased EMI and potential audible noise if layout is suboptimal.
What are the thermal considerations when operating the TPS6290YFFT at full load near its temperature limits, and how does package choice affect junction-to-ambient thermal resistance?
At an ambient temperature of 85°C, the TPS6290YFFT can deliver up to 500mA only if the PCB provides sufficient copper area and airflow. With no heatsinking, the estimated junction temperature rise exceeds 40°C at 500mA due to RθJA of approximately 80°C/W. In contrast, using a 6-pin DSBGA package with proper solder joint optimization and adjacent ground planes reduces thermal resistance by up to 30%. This means the device can sustain higher average power without derating. Engineers should verify thermal performance using TI’s WEBENCH simulation tools under real-world trace configurations rather than relying solely on datasheet curves.
Can the TPS6290YFFT be used in automotive-grade applications, and what modifications are needed beyond basic voltage regulation?
While the TPS6290YFFT operates over -40°C to +85°C, it is not qualified to AEC-Q100 standards and thus not suitable for functional safety-critical automotive systems. For non-safety infotainment or body electronics where cost is prioritized over reliability, it may still see limited use, but must undergo rigorous environmental testing including thermal cycling and humidity exposure. Additionally, input filtering beyond the recommended 1µF ceramic capacitor is advised to meet CISPR 25 radiated emission limits, especially given its 4MHz switching node.
How does the synchronous rectification in the TPS6290YFFT impact inductor selection compared to asynchronous solutions, and what trade-offs exist?
Synchronous rectification allows the use of lower-value inductors (as low as 1.0µH) while maintaining efficiency above 80% at 500mA. However, unlike asynchronous converters where the diode handles reverse recovery, the MOSFET body diode in the TPS6290YFFT conducts during dead time, leading to increased conduction loss at high duty cycles. Therefore, inductor saturation current must account for both DC and AC ripple, typically requiring I_L(SAT) > 1.2 × ILOAD. A standard 2.2µH, 1.2A shielded inductor like the Coilcraft XAL6060-222MEB works well, but must be placed within 5mm of the IC to minimize parasitic inductance in the return path.
What happens if the input voltage drops below 2.3V on the TPS6290YFFT, and how does the undervoltage lockout (UVLO) behave across process corners?
If VIN falls below 2.25V (typical), the internal bias circuitry powers down, and the output begins to droop. The UVLO hysteresis is about 100mV, meaning the regulator won't restart until VIN rises above ~2.35V. In worst-case silicon variations, this threshold can shift by ±150mV, so margining should assume VIN(min) = 2.15V for reliable startup. This behavior prevents brownout-induced resets in systems powered by Li-ion cells nearing depletion, but requires careful coordination with battery management ICs to avoid false shutdowns.
Is it acceptable to parallel multiple TPS6290YFFT units for higher current output, and what precautions are necessary?
Parallel operation is generally not recommended without external current sharing circuitry due to mismatched feedback thresholds and potential circulating currents. Even with identical parts, slight variations in threshold voltages (ΔVFB ≈ ±20mV) can cause one regulator to dominate load sharing. Instead, designers should either use a single higher-current PMIC or implement a master-slave configuration with dedicated enable pins and sense resistors. Attempting parallel connection increases risk of thermal runaway and reduces overall efficiency due to increased quiescent current from multiple controllers.
How does the 4MHz switching frequency affect PCB layout complexity when using the TPS6290YFFT, and what specific routing rules should be followed?
The high frequency demands tight control of loop geometry to minimize EMI and switching noise coupling. The critical paths—input capacitor to SW pin, SW to inductor, and inductor back to PGND—should form a compact triangle with minimal via count. Use of 0201 or smaller components reduces parasitic inductance; input capacitors must be placed within 0.5mm of the VIN and GND pads. Ground plane splits under the IC are strongly discouraged. Additionally, guard traces around the SW net can help contain electric fields but must be unconnected or tied to quiet PGND to avoid resonance.
What role does the soft-start function play in the TPS6290YFFT, and how should it be configured for inrush current control?
Soft-start limits the rate of output voltage ramp-up to prevent excessive input current surge during startup, typically set to 1ms internally. For capacitive loads exceeding 100µF, this duration may need extension via external capacitance on the SS pin, though the TPS6290YFFT lacks an explicit SS pin—instead, startup is managed through internal timing. If longer ramp times are required (e.g., for sequencing with other rails), consider adding a small RC network between VOUT and a supervisory IC’s reset line. Without such measures, large bulk capacitors (>470µF) could draw over 200mA peak current, potentially violating input supply capabilities.
How does the TPS6290YFFT handle short-circuit conditions, and what protection mechanisms are active during fault events?
Upon output short, the device enters hiccup mode after detecting overcurrent for ~10µs, then attempts restart every 1ms. During each attempt, peak current is clamped to ~1.2A, limiting stress on components. However, prolonged shorts can still elevate junction temperature significantly. Thermal shutdown occurs at TJ = 160°C, turning off the device until cooling resumes. Unlike some regulators that latch off permanently, the TPS6290YFFT auto-recovers, which is beneficial for transient overloads but may mask underlying system faults during diagnostics.
What is the significance of the Moisture Sensitivity Level (MSL) rating of 1 for the TPS6290YFFT, and how does this simplify assembly logistics?
MSL 1 indicates unlimited floor life under JEDEC J-STD-033 conditions, eliminating the need for baking before reflow or strict humidity-controlled storage. This simplifies procurement planning and reduces handling costs in high-volume manufacturing. As long as the tape-and-reel packaging remains intact and sealed, the TPS6290YFFT can sit on a production bench for weeks without risk of popcorning during soldering. This characteristic aligns well with automated assembly lines where lead times are short and inventory turnover is frequent.
How do the REACH and RoHS compliance statuses impact global market access for products using the TPS6290YFFT, and are there any restricted substances of concern?
RoHS3 compliance ensures absence of lead, mercury, cadmium, hexavalent chromium, PBBs, PBDEs, and four phthalates (DEHP, BBP, DBP, DIBP) at regulated levels. REACH status "Unaffected" implies the component itself does not introduce SVHCs (Substances of Very High Concern) above 0.1% w/w. However, downstream assembly must still comply with local regulations—for example, China RoHS requires labeling and documentation even if the part meets EU standards. Designers should confirm that supporting passive components also meet these requirements to avoid supply chain bottlenecks.
What is the typical quiescent current of the TPS6290YFFT, and how does it influence battery life in always-on IoT nodes?
Quiescent current is approximately 22µA at 3.3V input, rising slightly at higher inputs. When disabled via EN pin pull-down, shutdown current drops to 1µA. In a typical IoT node drawing 200µA average from a 3.3V Li-SOCl₂ cell, this represents <10% of total consumption. Over eight years, the TPS6290YFFT would consume roughly 5mAh, negligible compared to the cell’s capacity. Still, if the system spends significant time in sleep modes, minimizing leakage elsewhere becomes more critical than optimizing the regulator’s IQ alone.
Can the TPS6290YFFT operate reliably with ceramic output capacitors of different dielectric types (X7R vs. C0G), and what stability issues might arise?
Yes, but C0G/NP0 dielectrics offer superior temperature stability and lower ESR variation, making them ideal for precision applications. X7R capacitors exhibit capacitance drop at elevated temperatures (e.g., 50% reduction from 25°C to 85°C), potentially affecting transient response. Since the TPS6290YFFT uses voltage-mode control with Type III compensation, large ESR changes can destabilize the loop. Therefore, using 10µF minimum ceramic output capacitance with stable dielectric is advised, along with verification via step-load tests showing less than 50mV deviation.
How does the fixed 2.85V output voltage tolerance (±2%) affect system calibration, and what margin exists for component variation?
The 2.85V nominal output has a maximum deviation of +2.907V and minimum of 2.793V. Combined with resistor divider tolerances (±1%) and temperature drift (typically ±50ppm/°C), worst-case output can vary by ±3% across full operating range. For applications requiring tighter regulation (e.g., analog reference rails), this may necessitate post-regulation or trimming. However, for digital loads with wide input acceptance (e.g., FPGAs accepting 2.5–3.6V), this margin is often acceptable without additional overhead.
What testing methodology is recommended to validate the TPS6290YFFT performance before board bring-up, and why avoid breadboarding?
Before final PCB deployment, prototype evaluation boards (EVMs) should be used to characterize efficiency, transient response, and thermal behavior under realistic loads. Breadboarding introduces parasitic inductance and resistance that alter switching waveforms and loop dynamics, leading to false conclusions about stability or EMI performance. Additionally, EVMs include optimized layouts and bypass recommendations essential for achieving advertised specifications. Only after EVM validation should custom layouts proceed, with iterative prototyping focused on layout refinement rather than initial functionality checks.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS62690YFFT

Product Attribute TPS62690YFFR TPS62697YFFT TPS62693YFDT TPS62679ZYFMT
Part Number TPS62690YFFR TPS62697YFFT TPS62693YFDT TPS62679ZYFMT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Topology - - - -
Synchronous Rectifier - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Mounting Type - Surface Mount Through Hole Surface Mount
Output Configuration - - - -
Voltage - Input (Max) - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Current - Output - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Frequency - Switching - - - -
Number of Outputs - - - -
Function - - - -
Voltage - Input (Min) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Output (Min/Fixed) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Output (Max) - - - -

TPS62690YFFT Datasheet PDF

Download TPS62690YFFT pdf datasheets and Texas Instruments documentation for TPS62690YFFT - Texas Instruments.

PCN Design/Specification
DSBGA/uSIP 22/Jun/2016.pdf DSBGA/Usip 14/Sep/2016.pdf
PCN Packaging
Carrier Tape 28/Aug/2018.pdf WCSP Pin Indicator 15/Jan/2021.pdf
PCN Obsolescence/ EOL
Mult Dev EOL 22/Jul/2019.pdf Cancel 15/Aug/2019.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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TPS62690YFFT Image

TPS62690YFFT

Texas Instruments
98D-TPS62690YFFT

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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