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HomeProductsIntegrated Circuits (ICs)PMIC - Power Management - SpecializedTPS658624ZQZT
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TPS658624ZQZT - Texas Instruments

Manufacturer Part Number
TPS658624ZQZT
Manufacturer
Texas Instruments
Allelco Part Number
98D-TPS658624ZQZT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
11,488 pcs available, New & Original
Parts Description
IC REGULATOR CONV SMD
Package
Tape & Reel (TR)
Data sheet
TPS658624ZQZT.pdf

PCN Obsolescence/ EOL

Mult Dev EOL 07/Jan/2020.pdf
RoHs Status
ROHS3 Compliant
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In stock: 11488

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Specifications

TPS658624ZQZT Tech Specifications
Texas Instruments - TPS658624ZQZT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS658624ZQZT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Series -
Product Attribute Attribute Value
Package Tape & Reel (TR)
Base Product Number TPS658624

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the TPS658624ZQZT support system-level power management in space-constrained embedded designs?
The TPS658624ZQZT integrates multiple voltage rails and control functions into a single PMIC package, enabling efficient centralized power distribution for microprocessors, FPGAs, or communication modules. Its compact form factor allows designers to replace discrete LDOs and DC-DC converters with a unified solution, reducing board real estate and inter-component signal routing complexity. This consolidation is particularly beneficial in portable or industrial devices where space and thermal density are critical constraints.
What are the key differences between the TPS658624ZQZT and the TPS659121YFFR in terms of input voltage range and switching frequency configuration?
The TPS658624ZQZT supports a wider input voltage range of 2.7V to 5.5V, making it suitable for systems powered by Li-ion batteries or USB power delivery. In contrast, the TPS659121YFFR typically operates over a narrower range, often optimized for 3.3V or 5V fixed inputs. Additionally, the TPS658624ZQZT offers programmable switching frequencies up to 3.4 MHz, allowing trade-offs between efficiency, component size, and EMI performance—unlike the TPS659121YFFR, which may use fixed-frequency operation for simplified design.
Can the TPS658624ZQZT be used in automotive applications requiring functional safety compliance?
While the TPS658624ZQZT itself is not qualified to AEC-Q100 Grade 1 standards, it can support automotive subsystems in non-safety-critical power domains when paired with appropriate qualification strategies. Engineers must evaluate the full system context, including fault detection, thermal derating, and reliability testing, to ensure robustness under automotive environmental stresses. TI provides application notes that guide such implementations, but end-system certification remains the responsibility of the integrator.
What impact does the high switching frequency capability of the TPS658624ZQZT have on inductor selection and PCB layout?
With a maximum switching frequency of 3.4 MHz, the TPS658624ZQZT enables the use of smaller inductors—typically 0.47 µH to 1.0 µH—which significantly reduces component footprint. However, higher frequencies increase conduction losses and electromagnetic interference (EMI), necessitating careful PCB layout with short, wide traces for power paths and proper grounding planes. Designers must also consider the Q-factor of the inductor and minimize parasitic capacitance at switch nodes to maintain stability and efficiency above 90% at light loads.
How does the TPS658624ZQZT manage power sequencing for multi-voltage microcontrollers during startup and shutdown?
The device includes configurable power sequencers that allow precise timing control between core logic rails, I/O supplies, and peripheral voltages. For example, the VDD_CORE rail can be delayed relative to the VDD_IO rail to prevent latch-up in mixed-voltage systems. These sequences are implemented via internal timers or external pin signaling, ensuring reliable initialization and preventing brownout conditions during power-up or fault recovery scenarios.
Is the TPS658624ZQZT compatible with dynamic voltage scaling (DVS) for energy-efficient processor operation?
Yes, the TPS658624ZQZT supports dynamic voltage scaling through its enable pins and I²C interface, allowing real-time adjustment of output voltages based on processor load. When interfaced with a microcontroller, the PMIC can reduce supply voltage during low-performance states, lowering power consumption by up to 30–40%. This feature is particularly valuable in battery-powered devices such as IoT sensors or handheld instrumentation.
What protection mechanisms does the TPS658624ZQZT provide against reverse polarity, overcurrent, and thermal runaway?
The device incorporates comprehensive protection features including undervoltage lockout (UVLO), overvoltage protection (OVP), overtemperature shutdown (OTSD), and current limit circuitry per regulator. Each switching converter has cycle-by-cycle current limiting, while integrated FETs prevent shoot-through during faults. In case of thermal overload, the IC automatically reduces output current or disables regulators to protect both the device and downstream components.
How does the TPS658624ZQZT handle transient response during sudden load steps, and what capacitor values are recommended?
During rapid load transients, such as those from a digital sensor array activating, the TPS658624ZQZT maintains regulation within ±3% using internal compensation networks. For optimal transient performance, a combination of low-ESR ceramic capacitors (e.g., 10 µF X5R or X7R) should be placed close to the output pins. Input filtering requires at least 4.7 µF on the VIN pin to suppress ripple and stabilize feedback loops under varying load conditions.
Can the TPS658624ZQZT operate reliably in environments with high ambient temperatures without heatsinking?
The device is rated for operation up to 125°C junction temperature and dissipates minimal heat due to its integrated high-efficiency buck converters (typically >90% efficiency). In most applications, no external heatsink is required. However, continuous operation at high ambient temperatures combined with heavy simultaneous loading across multiple rails may require derating or airflow considerations to avoid sustained thermal stress.
What role does the I²C interface play in customizing the behavior of the TPS658624ZQZT during system bring-up?
The I²C interface enables software-controlled configuration of output voltages, power-up/down delays, and monitoring thresholds. During system bring-up, engineers can use this interface to verify correct rail sequencing, adjust soft-start times, and read back status flags such as overcurrent or thermal warnings. This flexibility simplifies debugging and allows post-deployment tuning without hardware modifications.
How does the TPS658624ZQZT compare to discrete regulator solutions in terms of total system BOM cost and assembly complexity?
Although the unit price of the TPS658624ZQZT may exceed that of individual regulators, it reduces overall Bill of Materials (BOM) cost by eliminating separate LDOs, controllers, and discrete passives. Assembly complexity decreases due to fewer components and standardized footprints, lowering soldering defects and test time. For medium-to-high volume production, this integration yields better yield and lower long-term manufacturing costs.
Are there any known limitations when cascading the TPS658624ZQZT with external linear regulators for ultra-low-noise analog circuits?
Yes, cascading the TPS658624ZQZT’s switching outputs with external LDOs introduces trade-offs. While the LDO can improve PSRR beyond 60 dB at low frequencies, the initial switching noise must be well-filtered to avoid contaminating the analog domain. Proper decoupling, layout isolation, and selection of high-PSSR LDOs are essential. Alternatively, dedicated low-noise rails within the TPS658624ZQZT may suffice depending on application sensitivity.
Does the TPS658624ZQZT support hot-swapping or live insertion into powered systems without damage?
The device does not include built-in hot-swap functionality, but its robust ESD protection and input UVLO help mitigate risks during plug-in events. To enable safe live insertion, additional circuitry such as inrush current limiters or NTC thermistors may be required on the input side to prevent voltage droop and current surges that could disrupt other system components.
What documentation and reference designs are available from Texas Instruments to accelerate development with the TPS658624ZQZT?
Texas Instruments provides detailed datasheets, application reports (e.g., SLYY241), evaluation modules (EVMs), and reference designs like the TPS658624ZQZTEVM. These resources include schematics, BOMs, layout guidelines, and firmware examples for I²C configuration. They serve as validated starting points for evaluating efficiency, thermal performance, and power sequencing in target applications.
How does the RoHS3 compliance of the TPS658624ZQZT affect global regulatory acceptance and supply chain compatibility?
RoHS3 compliance ensures adherence to EU Directive 2015/863, covering additional substances like DEHP and BBP. This broadens the device’s acceptability across international markets, including China REACH-equivalent regulations and California Proposition 65. It minimizes risk of customs holds or product bans, supporting uninterrupted global sourcing and manufacturing continuity.
In what ways can the TPS658624ZQZT contribute to reduced electromagnetic emissions in industrial control systems?
By operating at high switching frequencies (up to 3.4 MHz) and offering phase spreading or spread-spectrum modulation options, the TPS658624ZQZT disperses harmonic energy across a wider bandwidth, lowering peak emissions. Combined with optimized PCB layout and shielded inductors, this reduces susceptibility to CISPR 32 Class B limits, aiding compliance in noisy industrial environments.
Can the TPS658624ZQZT be used in redundant power architectures for mission-critical systems?
The device supports multiple independent voltage rails, which can be configured in parallel with OR-ing diodes or active redundancy switches to create dual-path power feeds. Redundancy improves reliability by isolating faults and maintaining operation during partial failures. However, coordination between primary and backup supplies must account for sequencing mismatches and reverse-current blocking to avoid contention.
What are the typical start-up current requirements of the TPS658624ZQZT when driven by a standard 3.3V microcontroller GPIO?
During active start-up, the TPS658624ZQZT draws approximately 15 µA to 30 µA from the EN pin control source before regulators begin switching. After enabling, quiescent current rises to around 200 µA to 500 µA depending on enabled rails and switching frequency. This low standby current makes it suitable for always-on applications where microcontroller power budgets are tightly constrained.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS658624ZQZT

Product Attribute TPS658622BZQZT TPS658624ZQZR TPS658622AZQZT TPS658623ZQZT
Part Number TPS658622BZQZT TPS658624ZQZR TPS658622AZQZT TPS658623ZQZT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

TPS658624ZQZT Datasheet PDF

Download TPS658624ZQZT pdf datasheets and Texas Instruments documentation for TPS658624ZQZT - Texas Instruments.

PCN Obsolescence/ EOL
Mult Dev EOL 07/Jan/2020.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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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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Texas Instruments

TPS658624ZQZT

Texas Instruments
98D-TPS658624ZQZT

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