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Texas Instruments TPS62913RPUR
- Part No.:
- TPS62913RPUR
- Manufacturer:
- Texas Instruments
- Package:
- 10-PowerVFQFN
- Datasheet:
-
TPS62913RPUR.pdf
- Description:
- IC REG BUCK ADJ 3A 10VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,976
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Product details
Overview
TPS62913RPUR from Texas Instruments is a 3-A, 3-V to 17-V input, low-noise synchronous buck converter with integrated ferrite-bead filter compensation, 2.2-MHz/1-MHz fixed-frequency peak-current-mode control, ±1% output voltage accuracy, and <10 µVRMS output ripple after second-stage filtering-designed for powering high-speed ADCs, clock jitter cleaners, and radar signal chains in telecom infrastructure.
For engineers reviewing the TPS62913RPUR datasheet, TPS62913RPUR pinout, TPS62913RPUR application, or TPS62913RPUR equivalent, this device delivers verified low 1/f noise (<20 µVRMS, 100 Hz–100 kHz), >65 dB PSRR up to 100 kHz, programmable spread spectrum modulation, and precise enable sequencing-critical for noise-sensitive analog and RF power domains.
Technical Context
The TPS62913RPUR implements a fixed-frequency current-mode control architecture with dual selectable switching frequencies (1 MHz or 2.2 MHz), internal slope compensation, and smart configuration via resistor-programmed S-CONF pin. It integrates dedicated loop compensation for stable operation with external ferrite-bead-based second-stage L-C filters up to 50 nH inductance.
Its low-noise performance stems from filtered internal voltage reference (via NR/SS capacitor), valley-current limiting (4.2 A), and dual FET RDS(on) of 57 mΩ (HS) / 20 mΩ (LS). Thermal shutdown activates at 170°C with 20°C hysteresis, and junction temperature operates from –40°C to 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3 A continuous-supports high-current analog rails without derating at full load across –40°C to 125°C. |
| Input Voltage Range | 3.0 V to 17 V-enables direct regulation from 5 V, 12 V, or PoE-derived supplies without pre-regulation. |
| Output Voltage Range | 0.8 V to 5.5 V-covers core voltages for ADCs, FPGAs, SerDes, and RF synthesizers with ±1% regulation accuracy. |
| Output Ripple (post-ferrite) | <10 µVRMS-achieved using integrated compensation for optional second-stage L-C filter, eliminating need for external op-amp post-regulators. |
| Low-Frequency Noise | <20 µVRMS (100 Hz–100 kHz)-matches LDO-grade noise floor via NR/SS capacitor filtering of internal reference. |
| PSRR | >65 dB up to 100 kHz-rejects upstream supply noise critical for clock distribution and data converter reference integrity. |
| Switching Frequency | 1 MHz or 2.2 MHz (pin-selectable)-enables compact magnetics while maintaining EMI compliance in dense PCB layouts. |
Pinout & Package
TPS62913RPUR is housed in a thermally enhanced 10-pin QFN (RPU) package, 2.0 mm × 2.0 mm, 0.5-mm pitch, with exposed thermal pad for efficient heat dissipation in high-power-density applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN/SYNC | Enable input / synchronization clock input | Logic-controlled startup with 1.01 V threshold; accepts external clock for frequency locking-no additional sync circuitry required. |
| 2 SW | Power switch node | High-side/low-side MOSFET drain connection-requires tight layout to PGND for EMI control and efficiency. |
| 3 VO | Output voltage sense point | Direct connection after first-stage inductor-ensures regulation at load, not IC output, for improved transient response. |
| 4 PGND | Power ground | Dedicated low-impedance return path for high di/dt switching currents-must be tied to thermal pad and system ground plane. |
| 5 PG | Open-drain power-good indicator | Signals valid output (93–98% VFB) with 8 µs delay-enables safe sequencing with downstream logic or FPGA configuration. |
| 6 VIN | Main input supply | Accepts 3–17 V with internal UVLO (2.92 V typ.) and 200 mV hysteresis-prevents erratic startup during brownout conditions. |
| 7 PSNS | Power sense ground | Separate Kelvin sense for current sensing-minimizes ground bounce impact on regulation accuracy. |
| 8 NR/SS | Noise reduction / soft-start control | Capacitor sets both soft-start time and low-frequency noise floor-470 nF yields ~24.4 µVRMS RMS noise at 1.2 V/1 A. |
| 9 FB | Feedback input | Resistor-divider input referenced to 0.8 V internal reference-supports adjustable output with ±0.8% feedback accuracy. |
| 10 S-CONF | Smart configuration select | Resistor-programmed pin configures switching frequency, spread spectrum mode (triangle/random), output discharge, and sync range. |
Key Features
| Feature | Design Value |
|---|---|
| Ferrite-bead filter compensation | Integrated loop compensation supports stable operation with external ferrite bead + capacitor filter-enables >30 dB attenuation without external op-amps. |
| Programmable spread spectrum | Triangle or random modulation (±10% fSW) reduces spectral peaks-lowers mixing spurs in ADC FFT outputs and improves EMC pass margin. |
| Precision enable with UVLO | User-configurable undervoltage lockout via EN/SYNC threshold (1.01 V typ.) and hysteresis-enables exact power-up sequencing in multi-rail systems. |
| Output discharge | Active discharge path (7 Ω at 1.2 V, 32 Ω at 5 V) clears output on shutdown-prevents backfeeding and ensures clean reset in mixed-signal systems. |
| Thermal robustness | Junction operating range –40°C to 150°C with 170°C thermal shutdown-supports deployment in sealed telecom enclosures and avionics bays. |
Applications
| High-Speed Data Acquisition | Radar Signal Chain Power |
|---|---|
|
Use Scenario: Powering 16-bit+ SAR or pipeline ADCs in test equipment with sampling rates ≥100 MSPS. IC Role / Device Role / Timing Role: Primary analog rail regulator delivering ultra-low-noise 1.8 V or 3.3 V supply directly to ADC AVDD and reference buffers. Use Value: <20 µVRMS 1/f noise and <10 µVRMS ripple eliminate quantization noise floor degradation and preserve SFDR >95 dBFS. |
Use Scenario: Supplying RF transceiver ICs and beamforming MMICs in phased-array radar front ends. IC Role / Device Role / Timing Role: Low-PSRR, low-ripple source for PLL/VCO bias rails and DAC output drivers requiring sub-100 fs jitter contribution. Use Value: >65 dB PSRR up to 100 kHz suppresses switching artifacts from digital baseband supplies, preserving phase noise performance. |
| Medical Imaging Front End | 5G Base Station RFIC Power |
|
Use Scenario: Regulating power for ultrasound receive-path amplifiers and time-of-flight sensor arrays in portable imaging devices. IC Role / Device Role / Timing Role: High-efficiency, low-noise DC/DC stage replacing discrete LDOs to reduce thermal load while maintaining SNR. Use Value: 3-A capability with 57 mΩ/20 mΩ RDS(on) enables >92% efficiency at 3.3 V/2 A-reducing board-level heat by >40% vs. LDO-only solutions. |
Use Scenario: Providing clean 1.0 V and 1.8 V rails to massive MIMO RFICs and envelope-tracking modulators in active antenna units. IC Role / Device Role / Timing Role: Secondary regulator following bulk 48 V–12 V conversion, optimized for fast load transient response and EMI containment. Use Value: 2.2-MHz operation with spread spectrum allows smaller inductors and meets stringent 3GPP radiated emissions limits without shielding cans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62912RPUR | 2-A output rating, identical pinout and feature set-lower current limit and reduced valley-current limit (3.4 A vs. 4.2 A). | Suitable for ≤2-A analog rails (e.g., single-channel ADCs, lower-power SerDes); not rated for 3-A radar or medical imaging loads. | Select TPS62912RPUR only when load current stays below 2 A-avoids unnecessary derating and cost premium of 3-A variant. |
| LTC3310S#PBF | 2.5-A monolithic buck with 5-MHz max fSW, no integrated ferrite-bead compensation, higher typical IQ (12 µA vs. 5 mA active). | Better suited for space-constrained, high-frequency designs where ferrite filtering is omitted-but requires external compensation for second-stage filters. | Choose LTC3310S#PBF when board area is critical and EMI filtering is handled via PCB layout or shielded inductors-not when ferrite-bead integration is required. |
Compared with TPS62913RPUR, TPS62912RPUR offers identical noise/ripple performance at reduced current capacity, while LTC3310S#PBF trades integrated ferrite support for higher switching frequency and lower quiescent current-making TPS62913RPUR optimal for validated low-noise, high-current, filter-integrated deployments.
Availability
TPS62913RPUR is available at Aetrix Electronics and suitable for telecom infrastructure, aerospace radar systems, and high-end medical imaging equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS62913RPUR 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-reliability power conversion ICs.
The TPS6291x product line was engineered specifically for noise-critical analog and RF power delivery-replacing cascaded LDOs with high-efficiency, low-ripple buck converters that maintain signal integrity in ADC, clock, and radar applications.
FAQ
What is the maximum supported ferrite-bead inductance for stable operation of the TPS62913RPUR?
The TPS62913RPUR integrates loop compensation validated for external second-stage filter inductance up to 50 nH-covering standard ferrite beads and small chip inductors. Stability is maintained without external compensation components when Cf ≥ 20 µF and Lf ≤ 50 nH, per TI's SLVSFP4B datasheet Section 6.3 and Figure 7-2.
Does the TPS62913RPUR support pin-selectable switching frequency, and how is it configured?
Yes, the TPS62913RPUR supports 1-MHz or 2.2-MHz fixed-frequency operation selected via resistor value on the S-CONF pin. A 9.31-kΩ resistor configures 2.2 MHz with random spread spectrum, while 0 Ω (GND) selects 1 MHz without spread spectrum-detailed in Table 7-1 of the datasheet.
Can the TPS62913RPUR be synchronized to an external clock, and what are the valid input requirements?
Yes, the EN/SYNC pin accepts external clock signals for synchronization. Valid inputs require logic-high ≥1.1 V and logic-low ≤0.4 V, with synchronization range matching the S-CONF–selected frequency (e.g., 1.9–2.42 MHz for 2.2-MHz mode). Clock must be applied after EN/SYNC rises above threshold.
What is the purpose of the VO pin on the TPS62913RPUR, and how must it be connected?
The VO pin is the output voltage sense point for remote feedback-TPS62913RPUR regulates based on voltage measured directly after the first-stage inductor, not at the IC's output pad. It must be routed with Kelvin connection to the load-side of the inductor to compensate for IR drop and improve load transient accuracy.
How does the NR/SS capacitor affect both soft-start time and output noise in the TPS62913RPUR?
A capacitor on the NR/SS pin simultaneously sets soft-start duration (tSS ≈ 1.2 × CNR/SS × 75 µA) and low-frequency noise floor by filtering the internal reference-470 nF yields ~24.4 µVRMS noise at 1.2 V/1 A and ~5.6 ms soft-start, per datasheet Sections 7.3.8 and Figure 6-29.
TPS62913RPUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1MHz, 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VQFN-HR (2x2)
TPS62913RPUR FAQ
1.How can I place an order for TPS62913RPUR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62913RPUR 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 TPS62913RPUR reliable?
The price and inventory of TPS62913RPUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62913RPUR is usually 5 days.
3.What payment methods are accepted for TPS62913RPUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62913RPUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62913RPUR?
TPS62913RPUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62913RPUR 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 TPS62913RPUR?
For technical support, including TPS62913RPUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62913RPUR requirements.
6.How does Aetrix verify that TPS62913RPUR is sourced from the original manufacturer or authorized distributors?
All TPS62913RPUR 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 TPS62913RPUR meets industry standards.
7.What is the process for return or replacement of TPS62913RPUR?
All TPS62913RPUR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62913RPUR, 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 TPS62913RPUR part is unused and in its original packaging.
Return procedure for TPS62913RPUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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