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Texas Instruments TPS62623YFDT
- Part No.:
- TPS62623YFDT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62623YFDT.pdf
- Description:
- IC REG BUCK 1.225V 600MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
TPS62623YFDT from Texas Instruments is a 600-mA, 6-MHz synchronous step-down DC/DC converter in a 6-pin NanoFree™ WCSP package, optimized for Li-ion–powered portable devices. It delivers fixed 1.225 V output with ±2% DC accuracy, 31 μA quiescent current, and automatic PFM/PWM mode switching-enabling high efficiency across 2.3 V to 5.5 V input range in space-constrained mobile applications.
For engineers reviewing the TPS62623YFDT datasheet, TPS62623YFDT pinout, TPS62623YFDT application, or TPS62623YFDT equivalent, key selection criteria include its regulated 6 MHz switching frequency, ultra-low quiescent current in PFM mode, integrated soft-start (120 μs), thermal shutdown protection, and compatibility with 0.47 μH inductors and 4.7 μF ceramic output capacitors in sub-1-mm footprint designs.
Technical Context
The TPS62623YFDT uses a frequency-locked ring-oscillating modulator architecture-eliminating traditional compensation loops-to achieve instantaneous load and line transient response. Its non-linear control enables inherent stability across wide L/COUT variations without external compensation.
It integrates dual MOSFET power switches (P-channel RDS(on) = 640 mΩ at 2.5 V, N-channel RDS(on) = 200 mΩ at 2.5 V), undervoltage lockout (2.05 V typ), and thermal shutdown (140°C). MODE pin selects between auto PFM/PWM or forced PWM operation; EN enables/disables with 0.2 μA shutdown current.
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 | Fixed 1.225 V ±2% - precision regulation for low-voltage core logic (e.g., ARM Cortex-M0+). |
| Max Output Current | 600 mA - sufficient for RF transceivers or application processors in standby/active burst modes. |
| Switching Frequency | 6 MHz (±10%) - enables use of 0.47 μH chip inductors and minimizes solution size & EMI filter area. |
| Quiescent Current | 31 μA (typ) in PFM - extends battery life in always-on sensor nodes or Bluetooth LE peripherals. |
| Efficiency Peak | 90% at 6 MHz - achieved at mid-load (e.g., 200 mA @ 3.6 V → 1.225 V) with minimal thermal rise. |
| Start-Up Time | 120 μs - fast enable for wake-from-sleep sequences in wearable devices. |
Pinout & Package
TPS62623YFDT is housed in a 6-pin DSBGA (NanoFree™ WCSP) package measuring 1.30 mm × 0.96 mm with 0.4-mm pitch. The die-side ball layout supports ultra-compact PCB routing and thermal conduction through the bottom-side GND ball.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Accepts 2.3–5.5 V supply; connects to input capacitor and battery rail. |
| SW | Switch Node | Drain of internal P-MOSFET and source of N-MOSFET; connects directly to inductor. |
| FB | Feedback Input | Senses regulated output voltage via internal 480-kΩ divider; no external resistors required. |
| MODE | Mode Control | Pull low for auto PFM/PWM; pull high for forced PWM-critical for noise-sensitive analog sections. |
| EN | Enable Input | Active-high logic; <0.4 V disables device with 0.2 μA shutdown current. |
| GND | Ground Reference | System ground return path; thermally coupled to PCB copper for junction-to-board cooling (θJB = 22°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM Transition | Seamlessly shifts between high-efficiency light-load PFM (31 μA IQ) and low-noise fixed-frequency PWM-no external control logic needed. |
| Integrated Soft-Start | 120-μs controlled ramp limits inrush current during power-up, preventing input rail collapse on weak battery sources. |
| Thermal Shutdown Protection | Shuts down at 140°C junction temperature with 10°C hysteresis-prevents damage during sustained overload or poor heatsinking. |
| Ultra-Small Solution Size | Total footprint <12 mm² using only one 0.47 μH MLCC inductor and two 0402 ceramic caps-ideal for hearables and compact IoT sensors. |
| Best-in-Class Transient Response | Delivers <10-μs recovery from 50% load step due to zero-loop-delay architecture-maintains tight regulation for burst-mode processors. |
Applications
| Mobile Phone Core Rail | Bluetooth LE Audio SoC Supply |
|---|---|
Use Scenario: Powers ARM-based application processor cores requiring stable 1.225 V at up to 400 mA during active UI rendering. IC Role / Device Role / Timing Role: Primary buck regulator delivering low-noise, tightly regulated core voltage with dynamic PFM/PWM adaptation. Use Value: Enables >30% longer talk time vs. legacy 1.5-MHz converters by sustaining 88% efficiency at 10 mA load. | Use Scenario: Supplies power to CSR8675-class Bluetooth audio SoCs during streaming, with rapid load transitions between idle and codec-active states. IC Role / Device Role / Timing Role: High-transient-response DC/DC converter maintaining 1.225 V within ±15 mV during 100 mA → 500 mA load steps. Use Value: Eliminates need for large bulk capacitance by recovering in <8 μs-reducing BOM count and PCB area. |
| Wearable Sensor Hub | GPS/GLONASS Front-End Bias |
Use Scenario: Powers inertial measurement unit (IMU) and environmental sensor fusion hub in smartwatch, operating continuously at 20–80 mA. IC Role / Device Role / Timing Role: Always-on power supply with ultra-low quiescent current and automatic light-load PFM entry. Use Value: Extends battery runtime to 7 days on 120-mAh coin cell by drawing only 31 μA during sensor sleep cycles. | Use Scenario: Provides clean 1.225 V bias to GPS RF front-end LNA and mixer stages during satellite acquisition bursts. IC Role / Device Role / Timing Role: Low-ripple, low-noise power source with forced PWM mode enabled to suppress switching noise near 1.575 GHz band. Use Value: Achieves –165 dBm sensitivity by limiting output ripple to 24 mVPP in PWM mode-no additional LC filtering required. |
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 | Fixed 1.8 V output; identical 6-MHz architecture, package, and pinout. | Targets higher-voltage I/O domains (e.g., SDIO, UART) instead of core logic rails. | Select when system requires 1.8 V rather than 1.225 V-no layout change needed. |
| TPS62086RTER | Adjustable output (0.8–3.3 V); 2.5-MHz switching; 1-A capability; 3-mm × 3-mm QFN. | Supports wider voltage scaling and higher current, but larger footprint and lower light-load efficiency (45 μA IQ). | Choose for programmable voltage rails or >600 mA loads-requires PCB redesign and new inductor. |
Compared with TPS62621YFDR, the TPS62623YFDT provides lower output voltage for modern ultra-low-power cores, while TPS62086RTER trades size and efficiency for flexibility and current headroom-making TPS62623YFDT optimal for miniaturized 1.2-V domain supplies where battery life and board area are critical.
Availability
TPS62623YFDT is available at Aetrix Electronics and suitable for mobile phones, Bluetooth LE audio devices, and wearable sensor hubs requiring stable component supply with guaranteed long-term sourcing.
Supply support for TPS62623YFDT 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 company headquartered in Dallas, Texas, designing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS6262x product line was engineered specifically for ultra-compact, battery-powered portable devices-prioritizing sub-1-mm profile, 6-MHz high-frequency operation, and best-in-class light-load efficiency without sacrificing transient performance.
FAQ
What is the exact output voltage tolerance of the TPS62623YFDT over temperature and load?
The TPS62623YFDT maintains ±2% total DC voltage accuracy across –40°C to 85°C ambient temperature and 0–600 mA load range, including line, load, and temperature effects. This specification is verified per TI's SLVS848D datasheet Section 7.5, ensuring reliable operation for 1.225 V core logic without external trimming.
Does the TPS62623YFDT support forced PWM mode, and how is it enabled?
Yes, the TPS62623YFDT supports forced PWM mode via the MODE pin. Pulling MODE high (≥1.0 V) disables automatic PFM entry and locks the converter into fixed 6-MHz PWM operation-even at light loads. This reduces output voltage ripple and simplifies EMI filtering for noise-sensitive analog circuits.
What is the recommended inductor value for the TPS62623YFDT, and why is 0.47 μH specified?
Texas Instruments recommends a 0.47 μH inductor (e.g., Murata LQM21PNR47MC0) because the TPS62623YFDT's internal compensation is optimized for this value with a 4.7 μF output capacitor. Using 0.47 μH ensures stable operation, minimal output ripple, and optimal transient response without external compensation components.
Can the TPS62623YFDT be used with input voltages below 2.3 V, and what happens at the UVLO threshold?
No-the TPS62623YFDT has a 2.05 V typical undervoltage lockout (UVLO) threshold and requires ≥2.1 V for functional operation. Below 2.05 V, the device disables switching and enters shutdown, preventing erratic behavior or excessive dropout during Li-ion battery end-of-discharge (<2.5 V).
Is thermal performance data available for the TPS62623YFDT in its YFD package, and what is θJA?
Yes-TI specifies a junction-to-ambient thermal resistance (θJA) of 130°C/W for the TPS62623YFDT in the 6-pin DSBGA YFD package under JEDEC JESD51-7 conditions. With 22°C/W junction-to-board (θJB) and proper PCB copper pour, it sustains 600 mA continuous output at 85°C ambient without derating.
TPS62623YFDT 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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.225V
- 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
TPS62623YFDT FAQ
1.How can I place an order for TPS62623YFDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62623YFDT 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 TPS62623YFDT reliable?
The price and inventory of TPS62623YFDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62623YFDT is usually 5 days.
3.What payment methods are accepted for TPS62623YFDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62623YFDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62623YFDT?
TPS62623YFDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62623YFDT 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 TPS62623YFDT?
For technical support, including TPS62623YFDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62623YFDT requirements.
6.How does Aetrix verify that TPS62623YFDT is sourced from the original manufacturer or authorized distributors?
All TPS62623YFDT 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 TPS62623YFDT meets industry standards.
7.What is the process for return or replacement of TPS62623YFDT?
All TPS62623YFDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62623YFDT, 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 TPS62623YFDT part is unused and in its original packaging.
Return procedure for TPS62623YFDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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