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Texas Instruments TPS79933DRVTG4
- Part No.:
- TPS79933DRVTG4
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS79933DRVTG4.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,937
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Product details
Overview
TPS79933DRVTG4 from Texas Instruments is a 200-mA, low-quiescent-current, ultralow-noise, high-PSRR low-dropout linear regulator with fixed 3.3-V output, EN control, and inrush current protection. It delivers 2% overall accuracy across load, line, and temperature (–40°C to +125°C), achieves 100-mV dropout at 200 mA, and operates stably with ≥2-μF ceramic output capacitance - ideal for powering RF VCOs and precision analog circuitry in space-constrained portable devices.
For engineers reviewing the TPS79933DRVTG4 datasheet, TPS79933DRVTG4 pinout, TPS79933DRVTG4 application, or TPS79933DRVTG4 equivalent, key selection criteria include its 40-μA quiescent current, 66-dB PSRR at 1 kHz, 10.5 × VOUT μVRMS output noise (with CNR), thermal shutdown at 165°C, and compatibility with 0.97-mm × 1.34-mm DSBGA packaging.
Technical Context
The TPS79933DRVTG4 employs a PMOS pass transistor architecture enabling ultra-low dropout (100 mV @ 200 mA) and high PSRR via a high-gain, high-bandwidth error amplifier. Its noise-reduction (NR) pin bypasses bandgap reference noise using an external capacitor, reducing total output noise to 10.5 × VOUT μVRMS (10 Hz–100 kHz).
It integrates inrush current limiting activated on EN toggle, overshoot detection with active pulldown (~350 Ω to GND), undervoltage lockout (UVLO) with 70-mV hysteresis, and thermal shutdown (165°C trip, 145°C reset). The device is fully specified over –40°C to +125°C junction temperature and requires no minimum load for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% over full load, line, and temperature range |
| Max Output Current | 200 mA continuous; internal current limit protects against sustained overload |
| Quiescent Current | 40 μA typical - enables battery-powered operation with multi-week standby life |
| Dropout Voltage | 100 mV at 200 mA - supports operation with only 3.4 V input for 3.3 V output |
| PSRR | 66 dB at 1 kHz, 51 dB at 10 kHz - suppresses switching noise from upstream DC/DC converters |
| Output Noise | 10.5 × VOUT μVRMS (34.7 μVRMS at 3.3 V) with 0.01-μF NR capacitor - suitable for RF VCO biasing |
| Operating Temp | –40°C to +125°C junction - qualified for automotive cabin and industrial edge applications |
Pinout & Package
TPS79933DRVTG4 is packaged in a 5-bump, thin, 0.97-mm × 1.34-mm DSBGA (YZU package), optimized for ultra-compact PCB layouts in wearable and mobile RF modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply | Accepts 2.7 V to 6.5 V; must exceed VOUT + VDO (≥3.4 V for 3.3 V output) |
| GND | Ground | Primary ground connection; DSBGA thermal pad must be soldered to PCB ground plane |
| EN | Enable input | Active-high logic control; drives high (>1.2 V) to enable, low (<0.4 V) to shut down (150 nA IQ) |
| NR | Noise reduction | Connects to 0.01-μF ceramic capacitor to bypass bandgap noise and reduce output noise by >85% |
| OUT | Regulated output | Delivers stable 3.3 V; requires ≥2-μF ceramic capacitor (X5R/X7R) to ground for stability |
Key Features
| Feature | Design Value |
|---|---|
| Inrush current protection | Immediate current limiting on EN toggle start-up prevents input rail sag and system brownout |
| Overshoot detection & pulldown | Active ~350-Ω pulldown engages if output exceeds nominal by >5%, suppressing transient overshoot |
| Stability with low-ESR ceramics | Guaranteed stable with ≥2-μF X5R/X7R capacitors (ESR < 1.0 Ω) - eliminates need for tantalum or polymer |
| Ultra-low noise architecture | NR pin + 0.01-μF capacitor reduces integrated noise to 10.5 × VOUT μVRMS - critical for VCO phase noise |
| High-accuracy feedback loop | Precision 1.193-V internal reference and tight tolerance error amplifier deliver ±2% total output accuracy |
Applications
| RF VCO Power Supply | Wearable Electronics Core Rail |
|---|---|
Use Scenario: Biasing voltage-controlled oscillators in Bluetooth® and wireless LAN transceivers where phase noise directly impacts EVM and spectral mask compliance. IC Role / Device Role / Timing Role: Ultra-low-noise, high-PSRR LDO providing clean 3.3-V supply to VCO tuning and buffer stages. Use Value: 10.5 × VOUT μVRMS output noise and 66-dB PSRR at 1 kHz minimize close-in phase noise and suppress switching ripple from adjacent DC/DC converters. | Use Scenario: Powering microcontrollers, sensors, and BLE radios in compact fitness trackers and smartwatches with strict size and battery-life constraints. IC Role / Device Role / Timing Role: Primary 3.3-V system rail regulator with enable control for dynamic power gating of peripheral subsystems. Use Value: 40-μA quiescent current extends battery life during sleep modes; 0.97-mm × 1.34-mm DSBGA footprint saves >60% board area vs. SOT-23-THIN. |
| Smartphone Camera Module | EPOS Terminal Power Management |
Use Scenario: Supplying image signal processors (ISPs) and CMOS image sensors requiring low-noise, fast-transient response rails to prevent image artifacts during burst capture. IC Role / Device Role / Timing Role: Dedicated low-noise LDO for camera subsystem, enabled synchronously with sensor activation. Use Value: Excellent load transient response (undershoot <15 mV, recovery <5 μs) and 2% accuracy ensure consistent ADC reference and analog front-end performance. | Use Scenario: Regulating 3.3-V logic rails for payment terminal controllers, secure elements, and display drivers operating in retail environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Industrial-grade LDO delivering stable 3.3 V across –40°C to +85°C ambient with thermal shutdown protection. Use Value: Full –40°C to +125°C junction rating and 165°C thermal shutdown ensure reliable operation in unventilated enclosures and hot retail locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS79933DRVR | Same silicon, identical electrical specs; differs only in tape-and-reel packaging (DRVR = 3,000-unit reel, DRVTG4 = 250-unit tape) | No functional difference; both support same PCB layout and thermal design | Select DRVR for high-volume production; DRVTG4 for prototyping or low-MOQ builds |
| MCP1703T-3302E/MB | 250-mA output, 1.8-μA IQ, 60-dB PSRR @ 1 kHz, 30-μVRMS noise - higher IQ but lower noise suppression than TPS79933DRVTG4 | Better suited for ultra-low-power always-on sensing nodes; less effective for RF-sensitive loads | Choose MCP1703T-3302E/MB when sub-2-μA quiescent current outweighs PSRR/noise requirements |
Compared with TPS79933DRVR and MCP1703T-3302E/MB, the TPS79933DRVTG4 offers superior PSRR (66 dB vs. 60 dB) and lower output noise (34.7 μVRMS vs. 30 μVRMS), making it optimal for RF and precision analog applications where supply ripple rejection is critical - while maintaining identical pinout and footprint with DRVR.
Availability
TPS79933DRVTG4 is available at Aetrix Electronics and suitable for RF VCO power supplies, wearable electronics core rails, smartphone camera modules, EPOS terminal power management, and industrial sensor node regulation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS79933DRVTG4 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 designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and consumer markets.
The TPS799 family is engineered for ultra-low-noise, high-PSRR power regulation in RF, precision analog, and portable electronics - emphasizing minimal quiescent current, fast transient response, and robust thermal performance in miniature packages.
FAQ
What is the maximum input voltage rating for the TPS79933DRVTG4?
The TPS79933DRVTG4 has an absolute maximum input voltage of 7.0 V. However, its recommended operating input voltage range is 2.7 V to 6.5 V. Operation above 6.5 V risks exceeding absolute maximum ratings and may cause permanent damage. For reliable 3.3-V output, minimum input must be ≥3.4 V (VOUT + VDO) under full 200-mA load.
Does the TPS79933DRVTG4 require an external noise-reduction capacitor to achieve its specified output noise?
Yes - the TPS79933DRVTG4 achieves its 10.5 × VOUT μVRMS (34.7 μVRMS) output noise specification only when a 0.01-μF ceramic capacitor is connected to the NR pin. Without this capacitor, output noise rises to 94 × VOUT μVRMS (≈310 μVRMS), degrading RF performance. The NR capacitor must be low-leakage (e.g., X7R ceramic) and placed close to the NR pin.
Can the TPS79933DRVTG4 be used without connecting the EN pin?
Yes - the EN pin can be tied directly to IN to permanently enable the TPS79933DRVTG4. This configuration eliminates external control but retains all other functionality including inrush protection and thermal shutdown. When unused, EN must not float; connecting it to IN ensures predictable startup and avoids undefined behavior.
What is the thermal performance of the TPS79933DRVTG4 in its DSBGA package?
The TPS79933DRVTG4 in the YZU DSBGA package has a junction-to-board thermal resistance (RθJB) of 84.7°C/W and junction-to-ambient (RθJA) of 143.3°C/W. With proper PCB copper pour under the thermal pad, it sustains 200-mA output at +85°C ambient without thermal shutdown. Derating is required above 100°C ambient to maintain TJ ≤ +125°C.
Is the TPS79933DRVTG4 compatible with ceramic output capacitors smaller than 2.2 μF?
No - the TPS79933DRVTG4 is only guaranteed stable with output capacitance ≥2.2 μF (ceramic, X5R/X7R, ESR < 1.0 Ω). Using smaller values risks oscillation or poor transient response. TI's datasheet explicitly specifies 2.2 μF as the minimum; 4.7 μF or 10 μF improves load transient undershoot but does not harm stability.
TPS79933DRVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.16V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 38dB (100Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS79933DRVTG4 FAQ
1.How can I place an order for TPS79933DRVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS79933DRVTG4 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 TPS79933DRVTG4 reliable?
The price and inventory of TPS79933DRVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS79933DRVTG4 is usually 5 days.
3.What payment methods are accepted for TPS79933DRVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS79933DRVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS79933DRVTG4?
TPS79933DRVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS79933DRVTG4 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 TPS79933DRVTG4?
For technical support, including TPS79933DRVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS79933DRVTG4 requirements.
6.How does Aetrix verify that TPS79933DRVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS79933DRVTG4 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 TPS79933DRVTG4 meets industry standards.
7.What is the process for return or replacement of TPS79933DRVTG4?
All TPS79933DRVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS79933DRVTG4, 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 TPS79933DRVTG4 part is unused and in its original packaging.
Return procedure for TPS79933DRVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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