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Texas Instruments TPS72733YFFR
- Part No.:
- TPS72733YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 4-UFBGA, DSBGA
- Datasheet:
-
TPS72733YFFR.pdf
- Description:
- IC REG LINEAR 3.3V 250MA 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,397
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Product details
Overview
TPS72733YFFR from Texas Instruments is a 250-mA, ultralow quiescent current (7.9 µA), fast transient response RF low-dropout linear regulator with fixed 3.3-V output, 65-mV typical dropout at 100 mA, ±2% output accuracy over load/line/temperature, and stable operation with 1.0-µF ceramic output capacitance. It serves as a precision voltage source for RF front-end biasing, sensor signal chains, and low-power microcontroller cores in space-constrained portable devices.
For engineers reviewing the TPS72733YFFR datasheet, TPS72733YFFR pinout, TPS72733YFFR application, or TPS72733YFFR equivalent, key selection criteria include its 7.9-µA ground current at zero load, 70-dB PSRR at 1 kHz, ±50-mV load transient response under 200-mA step, thermal shutdown at +160°C, and DSBGA-4 (1.2 mm × 0.8 mm) wafer-level chip-scale package compatibility with high-density PCB layouts.
Technical Context
The TPS72733YFFR employs a PMOS pass transistor architecture enabling ultralow dropout and minimal IQ, with factory-programmed EEPROM setting the 3.3-V output without external resistors. Its internal band-gap reference and error amplifier deliver 2% DC accuracy across –40°C to +125°C junction temperature.
Functional modes are controlled via an active-high EN pin (0.9 V threshold), supporting shutdown with 120-nA ground current. Protection includes thermal shutdown (+160°C trip, +140°C reset), current limiting (typ. 400 mA), and undervoltage lockout (1.90 V nominal).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V, factory-programmed via EEPROM - eliminates external feedback network and ensures production consistency. |
| Max Output Current | 250 mA - supports moderate-power RF ICs and mixed-signal SoCs without external current boosting. |
| Quiescent Current | 7.9 µA at IOUT = 0 mA - enables multi-year battery life in always-on IoT sensors and wearable standby circuits. |
| Dropout Voltage | 65 mV at 100 mA - allows operation from 3.365-V input when powering 3.3-V rail, minimizing power loss in low-headroom systems. |
| PSRR @ 1 kHz | 70 dB - suppresses switching noise from adjacent DC/DC converters, critical for RF transceiver LNA and ADC reference supplies. |
| Load Transient | ±50 mV for 200-mA load step - maintains regulation during burst-mode wireless transmission without external compensation. |
| Accuracy | ±2% over load, line, and temperature - guarantees system-level timing margin and ADC reference stability without calibration. |
| Stability | With ≥1.0-µF X5R/X7R ceramic COUT - eliminates need for tantalum or electrolytic capacitors, reducing BOM count and board area. |
Pinout & Package
TPS72733YFFR uses a 4-ball DSBGA (YFF) package measuring 1.20 mm × 0.80 mm with 0.4-mm pitch. Ball A1 is located at bottom-left per TI YFF0004 outline; GND is marked with top-side dot for 3.3-V variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (A2) | Input supply connection | Accepts 2.0–5.5 V input; requires local 0.1–1.0-µF ceramic decoupling to suppress source impedance effects. |
| EN (A1) | Enable control input | Active-high logic interface; drives ON above 0.9 V, enters 120-nA shutdown below 0.4 V - compatible with 1.8-V GPIO. |
| GND (B1) | Ground reference | Primary return path for IN, OUT, and internal circuitry; must be connected to low-impedance PCB ground plane. |
| OUT (B2) | Regulated output | Delivers 3.3 V ±2%; requires ≥1.0-µF ceramic capacitor directly at ball for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ | 7.9 µA ground current at zero load - extends battery runtime in energy-harvesting and coin-cell-powered nodes. |
| RF-optimized PSRR | 70 dB at 1 kHz, 55 dB at 10 kHz - isolates sensitive RF sections from digital supply noise without additional filtering. |
| Fast load transient | ±50-mV excursion for 200-mA step - sustains regulation during LTE/Wi-Fi transmit bursts without external LDO assist. |
| Factory-programmed output | 3.3-V fixed output set via EEPROM - eliminates resistor tolerance errors and layout sensitivity of adjustable LDOs. |
| Thermal protection | +160°C shutdown / +140°C recovery - prevents permanent damage during sustained overload or poor heatsinking in sealed enclosures. |
| Wafer-level packaging | DSBGA-4 (1.2 mm × 0.8 mm) - enables placement beneath BGAs and in <3-mm² footprint designs for ultra-thin wearables. |
Applications
| Wireless Sensor Node Power | RF Transceiver Bias Supply |
|---|---|
Use Scenario: Powers BLE 5.0 SoC (e.g., CC2642R) in battery-operated environmental monitor with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary 3.3-V LDO supplying MCU core, radio PHY, and analog sensor interface. Use Value: 7.9-µA IQ enables >10-year operation on CR2032; ±2% accuracy ensures ADC reference stability across temperature swings. | Use Scenario: Supplies LNA and mixer stages in 2.4-GHz Zigbee® module where supply noise directly impacts EVM and sensitivity. IC Role / Device Role / Timing Role: Clean, low-noise 3.3-V bias rail decoupled from noisy system DC/DC converter. Use Value: 70-dB PSRR at 1 kHz attenuates 1-MHz switching ripple by 10×, improving receiver sensitivity by ≥1.5 dB. |
| Wearable Health Monitor | Industrial Handheld Terminal |
Use Scenario: Powers optical heart-rate sensor (PPG) ASIC and low-power MCU in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Ultra-small-footprint 3.3-V regulator placed adjacent to analog front-end to minimize trace inductance. Use Value: DSBGA-4 package fits within 1.2 mm × 0.8 mm keep-out zone; 1-µF ceramic stability avoids large tantalum caps that increase thickness. | Use Scenario: Supplies 3.3-V logic rail for barcode scanner engine and touch controller in ruggedized handheld terminal. IC Role / Device Role / Timing Role: Main system LDO handling dynamic loads from motor drivers and display backlight PWM. Use Value: ±50-mV load transient response prevents brownout during simultaneous scan-and-display events without bulk capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0533PDBVR | Higher IQ (25 µA), larger SOT-23-5 package (2.9 mm × 1.6 mm), no factory-programmed output - requires external feedback resistors. | Less suitable for space-constrained wearables; better for cost-sensitive industrial controls where board area is less critical. | Select when lower BOM cost outweighs size/IQ requirements and design tolerates manual resistor selection. |
| MCP1700T-3302E/MB | Higher dropout (178 mV @ 250 mA), 6-µA IQ, SOT-23-3 package - lacks EN pin and thermal shutdown. | Not recommended for RF or thermally demanding environments; limited to basic microcontroller rails with ample headroom. | Select only for non-critical, low-power logic rails where thermal safety and fast transients are not required. |
Compared with TPS72733YFFR, TPS7A0533PDBVR trades 3.4× higher IQ and 4.8× larger footprint for lower unit cost, while MCP1700T-3302E/MB sacrifices thermal protection, enable control, and transient performance to achieve minimal IQ - making TPS72733YFFR the optimal choice for compact, RF-sensitive, battery-critical designs.
Availability
TPS72733YFFR is available at Aetrix Electronics and suitable for wireless sensor nodes, RF transceiver biasing, wearable health monitors, and industrial handheld terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS72733YFFR 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 specializing in analog and embedded processing technologies, with leadership in power management ICs and high-reliability signal chain solutions.
The TPS727 family is designed for ultra-low-power, space-constrained portable electronics - delivering sub-10-µA quiescent current, factory-set outputs, and RF-grade PSRR in wafer-level chip-scale packages.
FAQ
What is the maximum input voltage rating for the TPS72733YFFR?
The TPS72733YFFR has an absolute maximum input voltage rating of +6.0 V. Operation beyond this limit risks permanent damage. The recommended operating range is 2.0 V to 5.5 V, ensuring reliable regulation and thermal performance across all load conditions. Exceeding 5.5 V may trigger undervoltage lockout or degrade long-term reliability even if within absolute max limits.
Does the TPS72733YFFR require an input capacitor for stability?
The TPS72733YFFR does not require an input capacitor for basic stability, but TI recommends a 0.1-µF to 1.0-µF ceramic capacitor between IN and GND. This improves transient response, reduces input ripple coupling, and mitigates source impedance effects - especially critical when the device is remote from the power source or subjected to fast load steps. Omitting it may degrade PSRR and line transient performance.
How does the TPS72733YFFR behave during thermal shutdown?
When the TPS72733YFFR junction temperature reaches approximately +160°C, thermal shutdown disables the output. The device remains off until the junction cools to ~+140°C, at which point regulation resumes. This cycling protects against permanent damage but indicates excessive power dissipation - designers must ensure worst-case junction temperature stays ≤+125°C using proper PCB copper area and ambient derating.
Can the TPS72733YFFR be used with output capacitance less than 1.0 µF?
No - the TPS72733YFFR is specified and characterized for stability only with ≥1.0-µF ceramic output capacitance (X5R/X7R). Using smaller values risks oscillation, degraded transient response, and potential output voltage overshoot. TI explicitly states "stable with a 1.0-μF ceramic capacitor" and defines ESR limits (<200 mΩ); deviating invalidates the guaranteed performance specifications.
What is the significance of the dot marking on the TPS72733YFFR package?
For the TPS72733YFFR, the top-side dot marks the GND ball (B1), per TI's YFF package documentation. This orientation aid ensures correct PCB stencil alignment and automated optical inspection. Unlike 1.5-V/1.8-V/2.8-V/4.8-V variants where the dot marks EN (A1), the 3.3-V version uses GND marking - critical for avoiding assembly misalignment in high-volume SMT lines.
TPS72733YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 200mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 110 µA
- Current - Supply (Max):
- 130 µA
- PSRR:
- 85dB ~ 45dB (10Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA (1x1)
TPS72733YFFR FAQ
1.How can I place an order for TPS72733YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS72733YFFR 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 TPS72733YFFR reliable?
The price and inventory of TPS72733YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS72733YFFR is usually 5 days.
3.What payment methods are accepted for TPS72733YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS72733YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS72733YFFR?
TPS72733YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS72733YFFR 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 TPS72733YFFR?
For technical support, including TPS72733YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS72733YFFR requirements.
6.How does Aetrix verify that TPS72733YFFR is sourced from the original manufacturer or authorized distributors?
All TPS72733YFFR 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 TPS72733YFFR meets industry standards.
7.What is the process for return or replacement of TPS72733YFFR?
All TPS72733YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS72733YFFR, 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 TPS72733YFFR part is unused and in its original packaging.
Return procedure for TPS72733YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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