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Texas Instruments TPS62620YFDT
- Part No.:
- TPS62620YFDT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62620YFDT.pdf
- Description:
- IC REG BUCK 1.82V 600MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
TPS62620YFDT from Texas Instruments is a 6-MHz synchronous step-down DC/DC converter in a 6-pin NanoFree™ WCSP package, delivering 1.82 V at up to 600 mA from 2.3–5.5 V input. It features automatic PFM/PWM mode switching, 31 µA quiescent current, ±2% DC output accuracy, and integrated soft-start for mobile power rails.
For engineers reviewing the TPS62620YFDT datasheet, TPS62620YFDT pinout, TPS62620YFDT application, or TPS62620YFDT equivalent, key selection criteria include light-load efficiency, sub-1-mm footprint, fixed 1.82 V output, thermal shutdown behavior, and MODE pin-controlled noise performance in portable RF subsystems.
Technical Context
The TPS62620YFDT uses a frequency-locked ring-oscillating modulator architecture with no traditional compensated feedback loop-enabling instantaneous transient response and inherent stability across L/COUT variations. Its PFM mode reduces quiescent current to 31 µA while maintaining regulated 6 MHz PWM operation under load.
Control logic integrates undervoltage lockout (2.05 V threshold), thermal shutdown (140°C trip), and cycle-by-cycle P-channel MOSFET current limiting (1.1 A nominal). The internal soft-start ramps output over ~120 µs using progressive on-time control without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports full Li-ion battery discharge curve without brownout. |
| Output Voltage | 1.82 V ±2% - factory-trimmed fixed output; no external resistor divider required. |
| Max Output Current | 600 mA - sufficient for baseband processors, RF transceivers, and sensor hubs. |
| Switching Frequency | 6 MHz ±10% - enables use of 0.47 µH chip inductors and 0402 ceramic capacitors. |
| Quiescent Current | 31 µA - maintains >85% efficiency at 100 µA load in PFM mode. |
| Start-Up Time | 120 µs - ensures rapid rail activation during wake-from-sleep sequences. |
| Thermal Shutdown | 140°C with 10°C hysteresis - protects against sustained overload in sealed handheld enclosures. |
Pinout & Package
TPS62620YFDT is housed in a 1.30 mm × 0.96 mm, 6-pin DSBGA (NanoFree™ WCSP) package with bottom-side solder balls. The ultra-thin profile (<0.5 mm height) supports space-constrained mobile PCB stacking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.3–5.5 V; connects directly to battery or PMIC output; requires local 2.2 µF ceramic decoupling. |
| SW | Switch node | Drain of internal P-channel MOSFET; connects to inductor; high dv/dt node requiring tight layout. |
| FB | Feedback sense | Internal 0.8 V reference; connected directly to VOUT for fixed 1.82 V operation; no external resistors. |
| MODE | Operating mode control | Pull low for auto PFM/PWM; pull high for forced PWM only - critical for EMI-sensitive GPS/Bluetooth sections. |
| EN | Enable input | Active-high logic; <0.4 V disables device with 0.2 µA shutdown current; must be terminated, not floating. |
| GND | Ground reference | Primary return path for power and control circuits; requires low-impedance connection to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Auto PFM/PWM transition | Seamless mode switch at ~10 mA load - preserves >90% efficiency from 100 µA to 600 mA. |
| Integrated soft-start | 120 µs controlled ramp - prevents inrush into large output caps and avoids input voltage sag on weak batteries. |
| Ultra-low quiescent current | 31 µA in PFM - extends standby time in always-on sensor nodes and wearable devices. |
| Fixed-frequency 6 MHz operation | Enables consistent EMI filtering and predictable inductor sizing - eliminates frequency sweep artifacts in audio/RF bands. |
| Chip-scale packaging | 1.30 mm × 0.96 mm WCSP - reduces total solution area to <12 mm² including inductor and two MLCCs. |
Applications
| Mobile Phone Core Rail | Bluetooth Low Energy SoC Supply |
|---|---|
Use Scenario: Powers application processor I/O and memory interface in smartphone standby and active modes. IC Role / Device Role / Timing Role: Primary 1.82 V buck regulator delivering stable, low-noise supply with fast load transient response. Use Value: Maintains 1.82 V ±18 mV under 100 mA step load (50 ns rise time), preventing logic errors during burst data transfers. | Use Scenario: Supplies BLE radio and microcontroller in hearables and fitness trackers. IC Role / Device Role / Timing Role: Efficient, compact DC/DC converter enabling multi-week battery life in intermittent transmit/receive cycles. Use Value: Delivers 90% efficiency at 200 µA load (PFM mode), extending coin-cell runtime by >35% vs. linear regulators. |
| GPS Receiver Front-End | DTV Tuner LNB Bias |
Use Scenario: Provides clean 1.82 V bias to GPS RF front-end ICs in automotive navigation modules. IC Role / Device Role / Timing Role: Low-ripple, low-noise power source operating in forced PWM mode to suppress switching noise near 1.575 GHz band. Use Value: Achieves <20 mVPP ripple in PWM mode - meets GPS receiver sensitivity requirements without added LC filtering. | Use Scenario: Generates stable 1.82 V for digital tuner ASICs in portable DTV receivers. IC Role / Device Role / Timing Role: Compact, thermally robust buck converter supporting continuous operation in confined plastic enclosures. Use Value: Sustains 600 mA output at 55°C ambient with <15°C junction rise - eliminates thermal derating in sealed tuners. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62621YFDR | Identical package and pinout; fixed 1.8 V output (vs. TPS62620YFDT's 1.82 V); same 31 µA IQ and 6 MHz operation. | 1.8 V output suits legacy baseband ICs requiring exact 1.8 V; minor 20 mV offset may affect margin-critical analog blocks. | Select when system-level validation confirms 1.8 V tolerance; no layout change needed. |
| TPS62067QDSGRQ1 | Automotive-grade (AEC-Q100); 1.8 V output; 2.3–5.5 V input; 600 mA; but higher 45 µA IQ and 2.5 MHz switching frequency. | Designed for automotive infotainment displays; lacks PFM mode, reducing light-load efficiency by ~12% vs. TPS62620YFDT. | Choose only for AEC-Q100 compliance requirement; expect larger inductor (1.0 µH) and reduced battery life in portable use. |
Compared with TPS62620YFDT, TPS62621YFDR offers identical form-factor and efficiency but targets 1.8 V systems, while TPS62067QDSGRQ1 trades light-load performance and frequency agility for automotive qualification - making TPS62620YFDT optimal for consumer portable designs demanding minimal size and maximum standby efficiency.
Availability
TPS62620YFDT is available at Aetrix Electronics and suitable for mobile phones, Bluetooth SoCs, GPS receivers, and DTV tuners requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS62620YFDT 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.
The TPS6262x product line was designed specifically for ultra-compact, battery-powered portable electronics - prioritizing sub-1-mm footprint, nanoscale quiescent current, and seamless PFM/PWM transitions to maximize runtime in smartphones and wearables.
FAQ
What is the exact output voltage tolerance of the TPS62620YFDT?
The TPS62620YFDT delivers a factory-trimmed fixed output of 1.82 V with ±2% total DC accuracy over temperature, line, and load conditions - meaning output remains within 1.784 V to 1.856 V across –40°C to 85°C ambient, 2.3–5.5 V input, and 0–600 mA load. This specification is verified per TI SLVS848D Rev D electrical characteristics table.
Does the TPS62620YFDT require external feedback resistors?
No, the TPS62620YFDT does not require external feedback resistors. It uses an internal resistor divider referenced to a 0.8 V bandgap, configured for a fixed 1.82 V output. The FB pin is connected directly to the VOUT node in standard operation - eliminating component count, layout area, and resistor tolerance errors associated with adjustable regulators.
How does the MODE pin affect efficiency and noise in the TPS62620YFDT?
When the MODE pin is pulled low, the TPS62620YFDT operates in automatic PFM/PWM mode - achieving up to 90% efficiency at light loads (e.g., 100 µA) via 31 µA quiescent current. When pulled high, it forces fixed-frequency PWM mode, increasing light-load current draw to ~7.6 mA but delivering consistent 6 MHz switching for easier EMI filtering in noise-sensitive RF sections like GPS or Bluetooth.
What is the recommended inductor value for the TPS62620YFDT in a typical application?
Texas Instruments recommends a 0.47 µH inductor (e.g., Murata LQM21PNR47MC0) for the TPS62620YFDT, optimized for internal compensation and 6 MHz operation. Inductor values between 0.3 µH and 1.3 µH are supported; lower values improve transient response but increase ripple, while higher values reduce ripple and RMS loss but degrade load-step performance and may require derating for saturation current.
Is thermal shutdown protection active during startup of the TPS62620YFDT?
Yes, thermal shutdown protection is fully active during startup of the TPS62620YFDT. The device monitors junction temperature continuously and trips at 140°C (±5°C), turning off both P- and N-channel MOSFETs. Hysteresis of 10°C ensures safe restart only after cooling to ~130°C. This protection engages regardless of EN state or soft-start phase - critical for safeguarding against shorted outputs or undersized PCB copper during initial power-up.
TPS62620YFDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.82V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62620YFDT FAQ
1.How can I place an order for TPS62620YFDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62620YFDT 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 TPS62620YFDT reliable?
The price and inventory of TPS62620YFDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62620YFDT is usually 5 days.
3.What payment methods are accepted for TPS62620YFDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62620YFDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62620YFDT?
TPS62620YFDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62620YFDT 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 TPS62620YFDT?
For technical support, including TPS62620YFDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62620YFDT requirements.
6.How does Aetrix verify that TPS62620YFDT is sourced from the original manufacturer or authorized distributors?
All TPS62620YFDT 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 TPS62620YFDT meets industry standards.
7.What is the process for return or replacement of TPS62620YFDT?
All TPS62620YFDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62620YFDT, 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 TPS62620YFDT part is unused and in its original packaging.
Return procedure for TPS62620YFDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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