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Texas Instruments TPS62674YFDR
- Part No.:
- TPS62674YFDR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62674YFDR.pdf
- Description:
- IC REG BUCK 1.26V 500MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,972
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Product details
Overview
TPS62674YFDR from Texas Instruments is a 500-mA, 6-MHz synchronous step-down DC-DC converter in a 6-pin NanoFree™ DSBGA package (1.22 mm × 0.85 mm, height < 0.4 mm), optimized for Li-ion–powered portable devices. It delivers fixed 1.26 V output with ±2% total DC accuracy, 17 µA quiescent current in PFM mode, and supports input voltage range 2.3 V to 4.8 V. It is used in CMOS camera modules requiring ultra-low-profile, high-efficiency power conversion.
For engineers reviewing the TPS62674YFDR datasheet, TPS62674YFDR pinout, TPS62674YFDR application, or TPS62674YFDR equivalent, key selection criteria include its forced-PWM-only operation, integrated output discharge, 4.9–6.0 MHz regulated switching frequency, and compatibility with 0603 inductors and 0402 ceramic capacitors in sub-10 mm² layouts.
Technical Context
The TPS62674YFDR employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional compensation networks-to achieve instantaneous transient response and enable use of miniature passive components. Its control logic forces continuous PWM operation (no automatic PFM entry), ensuring consistent 4.9–6.0 MHz switching across load conditions.
This device integrates both P-channel and N-channel MOSFETs (rDS(on) = 170 mΩ / 120 mΩ at 3.6 V), a 70–150 Ω output discharge path, and external clock presence detection (4–27 MHz). MODE pin high enables low-noise forced-PWM; EN pin supports logic-level enable and auto-wake on external clock detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.26 V with ±2% total DC accuracy over line/load/temperature - ensures stable core voltage for low-power processors. |
| Max Output Current | 500 mA - sufficient for image sensor biasing and baseband ICs in compact mobile modules. |
| Input Voltage Range | 2.3 V to 4.8 V - fully covers Li-ion battery discharge curve (3.0–4.2 V nominal) with extended headroom. |
| Switching Frequency | 4.9–6.0 MHz (PWM only) - enables use of ≤1 µH chip inductors and reduces output ripple without increasing EMI filtering area. |
| Quiescent Current | 5.0 mA in PWM mode (IO = 0 mA) - balances low-noise operation and standby efficiency in always-on subsystems. |
| Output Discharge | Integrated 70–150 Ω discharge path - actively pulls VOUT to GND during shutdown, preventing floating rail issues in multi-rail systems. |
| PSRR | ≥35 dB from 1 kHz to 10 kHz - suppresses noise coupling from noisy system rails (e.g., RF transceivers, USB PHY). |
Pinout & Package
TPS62674YFDR uses a 6-pin DSBGA (NanoFree™) package, 1.22 mm × 0.85 mm, 0.4 mm max height, ball pitch 0.4 mm. Bottom-side layout matches standard CSP routing with solder-ball terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to VOUT; sets regulation point via internal 1.26 V reference - no external resistor divider required. |
| VIN (A2) | Power supply input | Accepts 2.3–4.8 V; requires local 2.2 µF ceramic decoupling (0402) close to pin for high-frequency stability. |
| SW (B1) | Switch node | Drain connection of internal P/N-MOSFET pair; routes to inductor - must be minimized in loop area to reduce EMI. |
| EN (B2) | Enable input | Active-high logic interface (VIH = 1.26 V min); supports auto-wake on external clock detection (4–27 MHz). |
| MODE (A1) | Mode selection | High = forced PWM (low-noise); Low = auto PFM/PWM - tied high for TPS62674YFDR's fixed-PWM operation. |
| GND (C2) | Ground reference | Primary thermal and signal return; requires solid copper under package per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Forced PWM-only operation | Eliminates PFM frequency variation - critical for noise-sensitive analog blocks (e.g., ADC references, RF LNA bias). |
| Integrated output discharge | 70–150 Ω internal FET path - removes need for external discharge circuitry, saving board space and BOM count. |
| Spread-spectrum modulation | Reduces peak EMI amplitude by dithering switching frequency - simplifies FCC/CE compliance in dense handheld PCBs. |
| Ultra-thin NanoFree™ packaging | 0.4 mm max height, 1.22 × 0.85 mm footprint - enables stacking under displays or within camera module housings. |
| Three external component solution | Only 1× 0603 inductor + 2× 0402 MLCCs required - achieves full regulation in <10 mm² total solution area. |
Applications
| CMOS Camera Module Power | Optical Data Module Bias |
|---|---|
Use Scenario: Powers image sensor core and analog front-end in smartphone rear cameras with strict height constraints. IC Role / Device Role / Timing Role: Primary 1.26 V core regulator delivering 500 mA with <0.4 mm profile and low ripple. Use Value: Enables direct integration beneath stacked lens assemblies; 17 µA quiescent current extends standby time between captures. |
Use Scenario: Supplies bias voltage to VCSEL drivers and photodiode amplifiers in short-reach optical transceivers. IC Role / Device Role / Timing Role: Low-noise, forced-PWM DC-DC converter minimizing jitter injection into high-speed data paths. Use Value: ≥35 dB PSRR at 1–10 kHz suppresses switching noise from shared battery rails, preserving signal integrity. |
| WLAN/BT Coexistence System | Low-Power Microcontroller Core Rail |
Use Scenario: Provides clean 1.26 V supply to Wi-Fi/BT combo ICs operating alongside cellular RF sections. IC Role / Device Role / Timing Role: Dedicated PMIC rail with spread-spectrum modulation to avoid spectral overlap with 2.4 GHz ISM band. Use Value: 4.9–6.0 MHz fundamental frequency places harmonics outside critical RF bands, easing filter design. |
Use Scenario: Powers ARM Cortex-M0+ or RISC-V cores in wearables where battery life and board area are paramount. IC Role / Device Role / Timing Role: Efficient step-down converter supporting dynamic voltage scaling from Li-ion input. Use Value: 92% peak efficiency at 6 MHz allows full 500 mA load without thermal derating in 0.33-mm-thick enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62675YFD | Fixed 1.2 V output; same forced-PWM, spread-spectrum, and discharge features. | Targets 1.2 V core rails (e.g., certain DSPs), not 1.26 V sensors. | Select when system requires exact 1.2 V regulation and shares identical layout constraints. |
| TPS626751YFD | Fixed 1.2 V output; adds output discharge but omits spread-spectrum modulation. | Suitable for cost-sensitive, non-RF applications where EMI is less critical. | Choose for simplified EMI validation in non-coexistence environments with identical thermal and size needs. |
Compared with TPS62674YFDR, TPS62675YFD offers identical performance at 1.2 V instead of 1.26 V, while TPS626751YFD trades spread-spectrum capability for lower cost-both retain the same 6-pin DSBGA package, 500-mA rating, and forced-PWM architecture.
Availability
TPS62674YFDR is available at Aetrix Electronics and suitable for CMOS camera modules, optical data modules, WLAN/BT coexistence systems, and low-power microcontroller core rails requiring stable component supply, ultra-thin packaging, and high-frequency DC-DC conversion.
Supply support for TPS62674YFDR 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 for portable electronics.
The TPS6267x family was designed specifically for space-constrained, battery-powered applications demanding sub-0.4 mm height, >90% efficiency at 6 MHz, and seamless integration with 0402/0603 passives - targeting smartphones, wearables, and optical modules.
FAQ
What is the output voltage of the TPS62674YFDR and how accurate is it?
The TPS62674YFDR provides a fixed 1.26 V output with ±2% total DC voltage accuracy across input voltage (2.3–4.8 V), load (0–500 mA), and temperature (–40°C to +85°C). This accuracy is achieved using an internal feedback network referenced to a precision bandgap, eliminating external resistor tolerance errors. The TPS62674YFDR maintains this specification without requiring trimming or calibration.
Does the TPS62674YFDR support automatic PFM/PWM mode switching?
No, the TPS62674YFDR operates in forced PWM mode only - it does not enter PFM at light loads. This behavior is hard-coded per device variant and confirmed in the Device Comparison Table. The MODE pin must be held high to maintain PWM operation, ensuring constant 4.9–6.0 MHz switching frequency and predictable EMI spectrum, unlike auto-mode variants such as TPS62671.
What is the purpose of the integrated output discharge function in the TPS62674YFDR?
TPS62674YFDR includes an internal 70–150 Ω discharge FET that actively pulls the VOUT pin to GND when the device is disabled (EN = low). This prevents residual charge from floating the output rail, which could cause latch-up or unintended biasing in downstream circuits like image sensors or level translators. No external discharge resistor is needed, reducing BOM count and PCB area.
Which external components are required to operate the TPS62674YFDR?
The TPS62674YFDR requires exactly three external components: one 0603-size chip inductor (0.3–1.8 µH), one 0402-input capacitor (≥2.2 µF, X5R/X7R), and one 0402-output capacitor (≥4.7 µF, X5R/X7R). These values are validated in TI's SLVS952G datasheet Figures 4 and 24. No compensation network, soft-start capacitor, or feedback resistors are needed due to its internal fixed-voltage architecture.
What package type and dimensions does the TPS62674YFDR use?
TPS62674YFDR uses a 6-pin DSBGA (NanoFree™) package measuring 1.22 mm × 0.85 mm with 0.4 mm maximum height and 0.4 mm ball pitch. This ultra-thin, chip-scale package is specified in TI's Mechanical, Packaging, and Orderable Information section (page 29) and enables placement in height-critical locations such as beneath camera modules or within slim wearable enclosures.
TPS62674YFDR 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):
- 4.8V
- Voltage - Output (Min/Fixed):
- 1.26V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 5.45MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62674YFDR FAQ
1.How can I place an order for TPS62674YFDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62674YFDR 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 TPS62674YFDR reliable?
The price and inventory of TPS62674YFDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62674YFDR is usually 5 days.
3.What payment methods are accepted for TPS62674YFDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62674YFDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62674YFDR?
TPS62674YFDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62674YFDR 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 TPS62674YFDR?
For technical support, including TPS62674YFDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62674YFDR requirements.
6.How does Aetrix verify that TPS62674YFDR is sourced from the original manufacturer or authorized distributors?
All TPS62674YFDR 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 TPS62674YFDR meets industry standards.
7.What is the process for return or replacement of TPS62674YFDR?
All TPS62674YFDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62674YFDR, 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 TPS62674YFDR part is unused and in its original packaging.
Return procedure for TPS62674YFDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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