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Texas Instruments TPS62234DRYT
- Part No.:
- TPS62234DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62234DRYT.pdf
- Description:
- IC REG BUCK 2.1V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:613
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Product details
Overview
TPS62234DRYT from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter in a 1 mm × 1.5 mm USON-6 package, delivering up to 500 mA output current with fixed 2.1 V output voltage, 2.05 V–6 V input range, and 22 μA quiescent current in power-save mode. It serves as an ultra-compact, high-efficiency replacement for LDOs in space-constrained portable power rails.
For engineers reviewing the TPS62234DRYT datasheet, TPS62234DRYT pinout, TPS62234DRYT application, or TPS62234DRYT equivalent, key selection criteria include its 3-MHz switching frequency enabling sub-12 mm² solution size, forced-PWM mode capability via MODE pin, and compatibility with 2.2 μH inductors and 4.7 μF output capacitors for low-noise audio/RF supply domains.
Technical Context
The TPS62234DRYT implements a hysteretic PWM controller topology supporting both automatic power-save (PFM) mode at light loads and forced PWM mode across full load range-enabling consistent noise filtering and predictable EMI behavior. Its internal 0.7 V reference and resistorless feedback architecture fix output at 2.1 V without external dividers.
It integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs, features undervoltage lockout (1.8 V falling threshold), thermal shutdown at 150°C, and soft-start with ~100 μs ramp time. The device starts into pre-biased outputs and supports 100% duty cycle for ultra-low dropout operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.1 V - eliminates need for external feedback resistors; ensures stable core voltage for low-power DSPs and sensors. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.7–4.2 V), Li-primary, or dual-alkaline battery inputs without derating. |
| Switching Frequency | 3 MHz - enables use of tiny 2.2 μH inductors and compact 4.7 μF ceramic output capacitors; reduces solution footprint to <12 mm². |
| Max Output Current | 500 mA - sufficient for powering ARM Cortex-M cores, RF transceivers, or image sensor interfaces under peak load. |
| Quiescent Current | 22 μA (PFM mode) - extends battery life in always-on wearable or IoT edge nodes with intermittent activity. |
| Efficiency | Up to 94% - minimizes thermal rise in sealed enclosures and improves energy conversion vs. linear regulators. |
| Operating Temp | –40°C to +125°C junction - qualified for automotive cabin modules, industrial handhelds, and outdoor wireless sensors. |
Pinout & Package
TPS62234DRYT uses a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm, optimized for ultra-thin PCB assemblies with ≤0.6 mm profile height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for auto PFM/PWM transition; pull high for forced PWM mode-critical for noise-sensitive RF/audio supplies. |
| SW | Switch node | Connects to inductor; carries high-frequency pulsed current; requires tight layout to minimize EMI and ringing. |
| VIN | Input power supply | Accepts 2.05–6 V; must be decoupled with ≥2.2 μF ceramic capacitor close to pin for stability. |
| FB | Feedback input | Internally connected to 2.1 V divider; no external resistors needed-reduces BOM count and layout area. |
| EN | Enable input | Active-high logic; must be terminated (no internal pull-up/down); enables power sequencing with upstream regulators. |
| GND | Power ground | Primary return path for switch current and IC bias; requires low-impedance connection to thermal pad and PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | <12 mm² total PCB area with 2.2 μH inductor and 4.7 μF output capacitor-ideal for hearing aids and smart patches. |
| High PSRR (up to 90 dB) | Rejects ripple from noisy battery or shared input rails-preserves signal integrity in analog front-ends and ADC references. |
| Optimized power-save mode | Maintains low output ripple even at light loads using pulse-skipping; avoids audible noise in portable audio codecs. |
| 100% duty cycle operation | Supports dropout as low as VIN – VOUT ≈ 0 V-enables extended runtime near battery end-of-discharge. |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction; resumes at 130°C-protects against sustained overload in sealed enclosures. |
Applications
| Portable Audio Power | Low-Power Wireless Node |
|---|---|
Use Scenario: Powering MEMS microphones and Class-D audio amplifiers in Bluetooth earbuds with strict height and thermal constraints. IC Role / Device Role / Timing Role: Primary 2.1 V supply rail regulator delivering clean, low-noise DC with fast transient response to dynamic audio loads. Use Value: 94% efficiency and 22 μA quiescent current extend playback time; 3-MHz switching avoids interference with 2.4 GHz BLE band. | Use Scenario: Supplying sub-GHz or 2.4 GHz transceivers (e.g., CC1310, nRF52832) in battery-powered sensor nodes with multi-year lifetime requirements. IC Role / Device Role / Timing Role: Main system voltage regulator providing stable 2.1 V to RF IC and MCU during burst TX/RX cycles. Use Value: Forced PWM mode ensures predictable EMI profile for FCC/CE certification; small solution size fits coin-cell–powered PCBs. |
| DSP Core Supply | Digital Camera Sensor Bias |
Use Scenario: Delivering regulated 2.1 V to low-voltage DSP cores (e.g., C55x, SHARC Lite) in portable medical imaging devices. IC Role / Device Role / Timing Role: High-efficiency buck converter replacing inefficient LDOs to reduce heat in thermally isolated modules. Use Value: 500 mA capability supports peak processing loads; 90 dB PSRR prevents switching noise from corrupting analog signal paths. | Use Scenario: Biasing CMOS image sensors and ISP processors in compact action cameras where board space is limited to <15 mm². IC Role / Device Role / Timing Role: Compact, fixed-output DC-DC converter supplying clean 2.1 V to sensor analog and digital domains. Use Value: 12 mm² solution enables integration alongside 1/4" optics; 100% duty cycle sustains operation down to 2.1 V battery voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | Fixed 1.8 V output; identical package, pinout, and electrical specs except output voltage. | Suitable where 1.8 V logic or I/O rails are required instead of 2.1 V; not interchangeable without schematic revision. | Select when target system requires 1.8 V core voltage and maintains same layout and external component values. |
| TPS62232DRYT | Fixed 1.2 V output; otherwise matches TPS62234DRYT in switching frequency, package, and feature set. | Used for ultra-low-voltage MCU cores (e.g., ARM Cortex-M0+) where 1.2 V is mandated by process node. | Choose for 1.2 V applications needing same compact footprint and efficiency profile-requires FB network removal but no layout change. |
Compared with TPS62231DRYT (1.8 V) and TPS62232DRYT (1.2 V), the TPS62234DRYT provides a higher fixed output optimized for 2.1 V analog subsystems and mixed-signal SoCs, offering identical thermal performance and PCB area while shifting regulation point to match specific voltage domain requirements.
Availability
TPS62234DRYT is available at Aetrix Electronics and suitable for portable audio, low-power wireless, and digital camera applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for TPS62234DRYT 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 over 50 years of innovation in high-reliability, energy-efficient IC design.
The TPS6223x product line delivers ultra-small, high-frequency synchronous buck converters targeting battery-powered portable electronics where minimal PCB area, low quiescent current, and low-noise operation are critical design constraints.
FAQ
What is the fixed output voltage of the TPS62234DRYT?
The TPS62234DRYT has a factory-trimmed fixed output voltage of 2.1 V. This value is set internally via laser trimming of the feedback divider and requires no external resistors-reducing component count and PCB area. The output voltage accuracy is ±2.5% over temperature (–40°C to +125°C), making it suitable for precision analog and digital supply domains where stable rail voltage is essential. The TPS62234DRYT does not support adjustable output configurations.
Does the TPS62234DRYT require external feedback resistors?
No, the TPS62234DRYT does not require external feedback resistors. It integrates a precision 0.7 V internal reference and a fixed-ratio feedback network calibrated for 2.1 V output. The FB pin is internally connected and must be tied directly to the output capacitor's positive terminal-no resistor divider or compensation components are needed. This simplifies design, improves reliability, and contributes to the device's ultra-compact 12 mm² solution size.
How does the MODE pin affect TPS62234DRYT operation?
The MODE pin on the TPS62234DRYT selects between two operating modes: pulling MODE low enables automatic power-save (PFM) mode at light loads and PWM mode at heavier loads, optimizing efficiency across the full load range; pulling MODE high forces continuous PWM operation regardless of load, eliminating pulse skipping and ensuring predictable EMI behavior for noise-sensitive applications like RF transceivers or audio codecs. The pin must be actively driven-no internal pull-up or pull-down exists except on TPS622319.
What is the minimum input voltage required for TPS62234DRYT startup?
The TPS62234DRYT requires a minimum input voltage of 2.05 V to initiate startup, as defined by its undervoltage lockout (UVLO) rising threshold. Once enabled, it continues operation down to the falling UVLO threshold of 1.8 V. This allows reliable function across the full discharge curve of single Li-ion (2.7–4.2 V), Li-primary (2.0–3.0 V), or dual-alkaline (2.0–3.2 V) batteries-making the TPS62234DRYT well-suited for long-life portable systems where deep battery utilization is critical.
Can the TPS62234DRYT be used in forced PWM mode for EMI-sensitive designs?
Yes, the TPS62234DRYT supports forced PWM mode via the MODE pin. When MODE is pulled high, the device operates continuously in PWM mode across all load conditions-eliminating variable-frequency pulse skipping and enabling predictable, filterable switching noise. This is especially valuable in EMI-sensitive applications such as Bluetooth/Wi-Fi coexistence, medical sensors, or precision ADC power supplies where spectral content must remain within defined bands for regulatory compliance and signal integrity.
TPS62234DRYT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFDFN
- 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):
- 2.05V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.1V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS62234DRYT FAQ
1.How can I place an order for TPS62234DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62234DRYT 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 TPS62234DRYT reliable?
The price and inventory of TPS62234DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62234DRYT is usually 5 days.
3.What payment methods are accepted for TPS62234DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62234DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62234DRYT?
TPS62234DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62234DRYT 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 TPS62234DRYT?
For technical support, including TPS62234DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62234DRYT requirements.
6.How does Aetrix verify that TPS62234DRYT is sourced from the original manufacturer or authorized distributors?
All TPS62234DRYT 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 TPS62234DRYT meets industry standards.
7.What is the process for return or replacement of TPS62234DRYT?
All TPS62234DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62234DRYT, 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 TPS62234DRYT part is unused and in its original packaging.
Return procedure for TPS62234DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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