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Texas Instruments TPS62733DRYR
- Part No.:
- TPS62733DRYR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62733DRYR.pdf
- Description:
- IC REG CONV BLUETOOTH 1OUT 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,073
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Product details
Overview
TPS62733DRYR from Texas Instruments is a high-frequency synchronous step-down DC-DC converter with integrated bypass switch, optimized for ultra-low-power 2.4-GHz Bluetooth Low Energy SoC systems. It delivers fixed 2.3-V output at up to 100-mA load, operates from 1.9–3.9-V input, achieves 95% efficiency, and consumes only 30-nA in bypass mode - enabling extended battery life in CC2540-based wireless sensor nodes.
For engineers reviewing the TPS62733DRYR datasheet, TPS62733DRYR pinout, TPS62733DRYR application, or TPS62733DRYR equivalent, key selection criteria include automatic VIN-tracking bypass transition (VIT_BYP = 2.41 V falling / 2.48 V rising), DCS-Control™ topology for low ripple with 2.2-μH/2.2-μF filter, USON-6 package (1.5 × 1.0 × 0.55 mm), and STAT open-drain status signaling for system power sequencing.
Technical Context
The TPS62733DRYR integrates TI's DCS-Control™ architecture-combining hysteretic transient response with voltage-mode DC accuracy-to sustain up to 3-MHz switching while maintaining low output ripple (<10 mVPP) across 1–100-mA loads. Its dual-mode operation dynamically transitions between PWM/PFM-regulated buck conversion and zero-ripple bypass conduction based on input-to-output voltage differential.
Internal circuitry includes a 2.1-Ω typical bypass switch (RDS(ON) = 2.9–3.8 Ω at 2.1 V), 25-μA DC-DC quiescent current, and an open-drain STAT output that asserts low when VOUT ≥ 95% of nominal (2.185 V) after startup. The ON/BYP pin enables deterministic mode control: high for active regulation, low for 30-nA shutdown with VIN-to-VOUT direct connection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.9 V to 3.9 V - supports Li-SOCl₂, Li-MnO₂, and two-cell alkaline batteries without external regulators. |
| Fixed Output Voltage | 2.3 V - precisely trimmed internal feedback divider eliminates external resistor network and saves PCB area. |
| Bypass Transition Threshold | VIT_BYP = 2.41 V (falling), 2.48 V (rising) - triggers seamless switch to zero-ripple bypass before buck duty cycle reaches 100%. |
| Quiescent Current (DC-DC) | 25 μA typical - enables >1-year battery life in intermittent BLE beacon applications with 10-s wake cycles. |
| Bypass Mode Current | 30 nA typical - reduces standby drain to negligible level during deep sleep of CC2540 or similar SoCs. |
| Switching Frequency | Up to 3 MHz - allows use of 2.2-μH inductor and 2.2-μF ceramic capacitor for <12-mm² total solution size. |
| Output Current Capability | 100 mA max - sufficient to power RF TX burst (0 dBm CW) and digital core of CC2540 simultaneously. |
Pinout & Package
TPS62733DRYR uses a 6-pin USON package (DRY suffix), measuring 1.5 mm × 1.0 mm × 0.55 mm, with wettable flank leads for automated optical inspection. The package is moisture-sensitive level 2a per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| STAT | Open-drain status output | Active-low signal confirms VOUT ≥ 95% of 2.3 V; requires external pull-up; floats when ON/BYP = low. |
| VIN | Main power input | Accepts 1.9–3.9 V; must be decoupled with 2.2-μF ceramic capacitor placed adjacent to pin. |
| GND | Power ground | Common return for input/output capacitors and inductor; connects to thermal pad for heat dissipation. |
| ON/BYP | Mode control input | Pull high (≥0.8 V) to enable DC-DC; pull low (≤0.6 V) to force 30-nA bypass mode; must not float. |
| SW | Switch node | Connects to 2.2-μH inductor; carries high di/dt; requires short, low-inductance trace to minimize EMI. |
| VOUT | Regulated output | Delivers fixed 2.3 V; connects directly to 2.2-μF output capacitor; internal feedback divider is disconnected in bypass mode. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables 3-MHz operation with <10-mVPP ripple using only 2.2-μH/2.2-μF filter - critical for noise-sensitive BLE RF front-end stability. |
| Automatic bypass transition | Eliminates output ripple at low VIN by switching to direct VIN-to-VOUT path when VIN drops within 70 mV of VOUT, preserving RF performance near battery end-of-life. |
| Ultra-low-power bypass mode | 30-nA typical supply current extends shelf life and sleep duration in energy-harvesting or coin-cell-powered sensors. |
| Integrated 2.1-Ω bypass switch | Reduces voltage drop to <50 mV at 20 mA - maintains system VCC regulation without external FET or diode. |
| STAT open-drain output | Provides hardware-ready signal to microcontroller for synchronized wake-up and power-state coordination in BLE advertising intervals. |
Applications
| BLE Beacon Node | Smart Meter Sensor Module |
|---|---|
|
Use Scenario: Battery-powered BLE beacon transmitting temperature/humidity every 10 seconds with 20-ms RF burst. IC Role / Device Role / Timing Role: Primary power regulator supplying CC2540 SoC; manages dynamic load shifts between deep sleep (30 nA) and TX burst (100 mA). Use Value: 95% efficiency at 10-mA average load and 30-nA bypass current extend CR2032 lifetime beyond 2 years. |
Use Scenario: Sub-GHz/2.4-GHz dual-band smart meter endpoint collecting utility data hourly and transmitting via RF4CE protocol. IC Role / Device Role / Timing Role: Dual-mode voltage source enabling seamless transition between ultra-low-power metering IC sleep and high-current RF transmission phases. Use Value: Automatic bypass activation below 2.48 V prevents RF desense during battery voltage sag, ensuring reliable packet delivery at end-of-life. |
| Wireless Medical Patch | Industrial Asset Tracker |
|
Use Scenario: Disposable wearable patch monitoring ECG continuously, transmitting encrypted data every 5 minutes via BLE. IC Role / Device Role / Timing Role: Power management unit delivering stable 2.3 V to analog front-end and BLE SoC; STAT signal synchronizes ADC sampling with RF readiness. Use Value: DCS-Control™ ensures <5-mV ripple during analog acquisition, eliminating digitization noise without added LDO post-regulation. |
Use Scenario: GPS-enabled asset tracker operating on primary lithium battery, reporting location every 6 hours using CC2540 + GPS module. IC Role / Device Role / Timing Role: High-efficiency step-down converter supporting peak 120-mA combined load (GPS + BLE); bypass mode sustains logic levels during cold-start GPS acquisition. Use Value: 2.1-Ω bypass switch limits dropout to 42 mV at 20 mA - maintains MCU brown-out reset threshold during GPS cold start under weak battery conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter with bypass mode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62730DRYR | Fixed 2.1-V output; lower VIT_BYP (2.20 V falling / 2.25 V rising); identical package and pinout. | Optimized for CC2540 systems requiring 2.1-V core voltage; less headroom for battery sag before bypass activation. | Select when target SoC mandates 2.1-V supply and system tolerates earlier bypass transition. |
| TPS62732DRYR | Fixed 1.9-V output; lowest VIT_BYP (2.05 V falling / 2.10 V rising); same DCS-Control™ and USON-6 footprint. | Suitable for ultra-low-voltage microcontrollers or sub-1-GHz RF SoCs with 1.9-V rails; highest battery voltage utilization before cutoff. | Choose for longest runtime in alkaline or Li-MnO₂ cells where 1.9-V logic compatibility is required. |
Compared with TPS62730DRYR and TPS62732DRYR, the TPS62733DRYR provides higher output voltage (2.3 V) and elevated bypass thresholds (2.41/2.48 V), making it optimal for BLE SoCs needing tighter VCC margin and delayed bypass entry to maximize regulated operation time.
Availability
TPS62733DRYR is available at Aetrix Electronics and suitable for BLE beacon nodes, smart meter sensor modules, wireless medical patches, industrial asset trackers, and RF4CE remote controls requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS62733DRYR 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, embedded processing, and wireless connectivity solutions, with over 50 years of leadership in power management innovation.
The TPS6273x family was designed specifically for ultra-low-power wireless systems - integrating high-efficiency DC-DC conversion and zero-ripple bypass functionality to eliminate external discrete switches and extend battery life in coin-cell and primary battery applications.
FAQ
What is the exact output voltage of the TPS62733DRYR?
The TPS62733DRYR delivers a factory-trimmed fixed output voltage of 2.3 V with ±1.5% accuracy over –40°C to 85°C ambient temperature. This value is set internally and does not require external feedback resistors, reducing BOM count and PCB footprint. The TPS62733DRYR is part of the TPS6273x family, where each variant has a distinct fixed output: TPS62730 = 2.1 V, TPS62732 = 1.9 V, and TPS62733DRYR = 2.3 V.
How does the automatic bypass mode work in the TPS62733DRYR?
The TPS62733DRYR automatically transitions from DC-DC regulation to bypass mode when the input voltage falls below 2.41 V (falling threshold), connecting VIN directly to VOUT via an internal 2.1-Ω switch. This eliminates switching ripple and reduces quiescent current to 23 μA. When VIN rises above 2.48 V, it re-engages the buck converter. This behavior is intrinsic to the TPS62733DRYR's design and requires no external control logic.
Can the TPS62733DRYR be used with a 2.2-μH inductor and 2.2-μF output capacitor?
Yes - the TPS62733DRYR is fully characterized and optimized for use with a 2.2-μH inductor and 2.2-μF ceramic output capacitor, achieving <10-mVPP ripple and 95% efficiency at full load. TI's reference design (SLVSAC3D) validates this combination, and the internal DCS-Control™ compensation is tuned specifically for these values, eliminating need for external loop compensation.
What is the function of the STAT pin on the TPS62733DRYR?
The STAT pin on the TPS62733DRYR is an open-drain output that goes low when VOUT reaches ≥95% of 2.3 V (i.e., ≥2.185 V) after startup, indicating regulator readiness. It remains high-impedance when ON/BYP is low or VOUT is below threshold. An external pull-up resistor is required; unused STAT pins may be left floating. This signal enables precise power-state coordination in BLE SoCs like CC2540.
Is the TPS62733DRYR pin-compatible with other devices in the TPS6273x family?
Yes - all TPS6273x variants (TPS62730DRYR, TPS62732DRYR, TPS62733DRYR) share identical USON-6 (DRY) packaging, pin assignment, and footprint. They differ only in fixed output voltage and corresponding bypass thresholds; no PCB redesign is needed when migrating between variants, provided system-level voltage and timing requirements are verified.
TPS62733DRYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, Bluetooth (BLT)
- Voltage - Input:
- 1.9V ~ 3.9V
- Number of Outputs:
- 1
- Voltage - Output:
- 2.3V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS62733DRYR FAQ
1.How can I place an order for TPS62733DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62733DRYR 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 TPS62733DRYR reliable?
The price and inventory of TPS62733DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62733DRYR is usually 5 days.
3.What payment methods are accepted for TPS62733DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62733DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62733DRYR?
TPS62733DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62733DRYR 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 TPS62733DRYR?
For technical support, including TPS62733DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62733DRYR requirements.
6.How does Aetrix verify that TPS62733DRYR is sourced from the original manufacturer or authorized distributors?
All TPS62733DRYR 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 TPS62733DRYR meets industry standards.
7.What is the process for return or replacement of TPS62733DRYR?
All TPS62733DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62733DRYR, 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 TPS62733DRYR part is unused and in its original packaging.
Return procedure for TPS62733DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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