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Texas Instruments TPS62236DRYR
- Part No.:
- TPS62236DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62236DRYR.pdf
- Description:
- IC REG BUCK 1.85V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,246
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Product details
Overview
TPS62236DRYR from Texas Instruments is a 2-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 1.85 V output voltage, 2.05–6 V input range, and 22 μA quiescent current in power-save mode. It replaces LDOs in portable audio and low-power DSP core supplies.
For engineers reviewing the TPS62236DRYR datasheet, TPS62236DRYR pinout, TPS62236DRYR application, or TPS62236DRYR equivalent, key selection criteria include its ultra-small 12 mm² solution size, forced-PWM capability via MODE pin, high PSRR (up to 90 dB), and operation down to –40°C junction temperature.
Technical Context
The TPS62236DRYR implements a hysteretic PWM controller topology enabling 2 MHz fixed-frequency operation or automatic PFM/PWM transition based on load. Its internal 0.7 V reference feeds a precision feedback loop tied to the FB pin, supporting ±2.5% output voltage accuracy across –40°C to 125°C.
It integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs with 850 mA typical current limit, minimum ON/OFF times of 135 ns/40 ns, and undervoltage lockout with 1.9 V rising threshold. Thermal shutdown activates at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.85 V - eliminates external resistor divider, simplifies layout and improves stability |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion, Li-primary, or two alkaline cells without dropout issues |
| Switching Frequency | 2 MHz - enables use of 2.2 μH inductor and 4.7 μF output capacitor for compact 12 mm² design |
| Max Output Current | 500 mA - sufficient for low-power DSP cores and portable media ICs with margin |
| Quiescent Current | 22 μA in PFM mode - extends battery life in standby or light-load states |
| PSRR | Up to 90 dB - suppresses input ripple critical for noise-sensitive analog/RF circuitry |
| Operating Temp | –40°C to 125°C junction - qualified for industrial and extended-temperature embedded applications |
Pinout & Package
TPS62236DRYR uses a 6-pin USON (DRY) package measuring 1.45 mm × 1.00 mm × 0.6 mm, optimized for ultra-dense PCB layouts with ≤0.6 mm profile height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for auto PFM/PWM; pull high for forced PWM - enables deterministic noise filtering in RF/audio systems |
| SW | Power switch node | Connects to external 2.2 μH inductor - carries high-frequency switching current; requires tight thermal/via design |
| VIN | Input power supply | Accepts 2.05–6 V; must be decoupled with 2.2 μF ceramic capacitor close to pin |
| FB | Feedback input | Direct connection to output capacitor - sets regulation point using internal 0.7 V reference |
| EN | Enable input | Active-high logic; must be terminated - controls startup sequencing and system-level power management |
| GND | Power ground | Low-impedance return path for VIN, SW, and internal circuits - requires solid thermal pad connection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total area - achieved with 1×1.5 mm USON-6 package and minimal external components |
| High PSRR | Up to 90 dB at 100 kHz - maintains clean output under noisy battery or shared-rail conditions |
| Forced PWM mode | Enabled by MODE = high - eliminates variable-frequency PFM noise for EMI-sensitive designs |
| 100% duty cycle capability | Supports lowest dropout - sustains regulation even when VIN approaches VOUT + 0.1 V |
| Thermal shutdown | 150°C activation with 20°C hysteresis - protects against sustained overload or poor heatsinking |
Applications
| Portable Audio Power Supply | Low-Power DSP Core Supply |
|---|---|
Use Scenario: Powers DAC, headphone amplifier, or codec in Bluetooth earbuds or portable speakers. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting single-cell Li-ion (3.0–4.2 V) to stable 1.85 V rail. Use Value: 90 dB PSRR prevents switching noise from modulating audio signals; 22 μA quiescent current extends playback time. | Use Scenario: Supplies voltage to ARM Cortex-M0+ or similar low-power microcontroller core. IC Role / Device Role / Timing Role: Efficient buck converter replacing linear regulator to reduce heat and extend battery runtime. Use Value: 500 mA capability covers peak active current; 2 MHz switching avoids interference with MCU clock domains. |
| Digital Camera Sensor Bias | Wireless IoT Node PMU |
Use Scenario: Provides clean 1.85 V bias to CMOS image sensor analog front-end. IC Role / Device Role / Timing Role: Low-noise power source with fast transient response for pixel readout timing. Use Value: Excellent AC load regulation ensures stable sensor gain; forced PWM mode eliminates audible switching artifacts. | Use Scenario: Powers BLE/Wi-Fi SoC (e.g., CC2652) in battery-operated sensor nodes. IC Role / Device Role / Timing Role: Main system regulator managing sleep/active transitions with minimal leakage. Use Value: 0.1 μA shutdown current preserves battery during multi-week sleep cycles; 2.05 V min VIN enables full cell utilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.8 V output; identical package, pinout, and electrical specs except VOUT | Suitable where 1.8 V rail is required instead of 1.85 V - no layout change needed | Select when system voltage tolerance allows 50 mV lower output; verify load regulation impact on downstream logic |
| TPS62237DRYR | Fixed 3.3 V output; same 2 MHz frequency, USON-6 package, and feature set | Used for higher-voltage I/O or interface rails - requires re-evaluation of inductor saturation and output capacitance | Choose for 3.3 V applications; confirm thermal performance at higher VIN–VOUT differential |
Compared with TPS62236DRYR, TPS62231DRYR offers identical efficiency and footprint at 1.8 V, while TPS62237DRYR provides higher output but demands revised output filter sizing and thermal validation for 3.3 V operation.
Availability
TPS62236DRYR is available at Aetrix Electronics and suitable for portable audio, low-power DSP core supplies, and wireless IoT node power management requiring stable component supply and long-term lifecycle support.
Supply support for TPS62236DRYR 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 power management technologies, with leadership in high-efficiency DC-DC conversion.
The TPS6223x product line was designed for ultra-compact, high-frequency step-down conversion in space-constrained battery-powered devices - emphasizing minimal solution size, low quiescent current, and robust noise performance.
FAQ
What is the output voltage of the TPS62236DRYR?
The TPS62236DRYR has a factory-trimmed fixed output voltage of 1.85 V. This value is set internally and does not require external resistors. Output voltage accuracy is ±2.5% over –40°C to 125°C junction temperature, referenced to the internal 0.7 V bandgap. The TPS62236DRYR achieves this regulation via direct FB-to-output connection using its integrated feedback network.
Does the TPS62236DRYR support forced PWM mode?
Yes, the TPS62236DRYR supports forced PWM mode via the MODE pin. When MODE is pulled high (≥2.05 V), the device operates continuously in quasi-fixed-frequency PWM mode across all load conditions, eliminating pulse-frequency modulation (PFM) and associated variable-frequency noise. This is essential for EMI-sensitive applications like RF transceivers or high-fidelity audio circuits where deterministic switching behavior is required.
What is the minimum input voltage required for the TPS62236DRYR to operate?
The TPS62236DRYR requires a minimum input voltage of 2.05 V to start and sustain operation. Below this threshold, the undervoltage lockout (UVLO) circuit disables switching. The rising UVLO threshold is typically 1.9 V, and the falling threshold is 1.8 V. This allows reliable operation from partially discharged Li-primary or two alkaline cells, extending usable battery capacity beyond what standard 2.5 V–3.0 V regulators permit.
Can the TPS62236DRYR be used in thermally constrained environments?
Yes, the TPS62236DRYR is rated for continuous operation from –40°C to 125°C junction temperature and includes thermal shutdown at 150°C with 20°C hysteresis. Its USON-6 package has a junction-to-board thermal resistance (RθJB) of 166.1°C/W. To maintain reliability in thermally constrained PCBs, ensure the exposed thermal pad is soldered to ≥2 cm² of inner-layer copper with ≥4 thermal vias - validated in TI's SLVS941G datasheet layout examples.
How does the TPS62236DRYR handle startup into a prebiased output?
The TPS62236DRYR supports startup into a prebiased output capacitor - meaning it can safely begin regulation when the output already holds a voltage (e.g., from another rail or residual charge). During such startup, the device ramps the output from the existing bias level to its nominal 1.85 V without reverse current flow or output overshoot. This behavior is enabled by its internal soft-start circuit and controlled high-side switch turn-on sequence, as confirmed in the SLVS941G datasheet Section 8.4.1.
TPS62236DRYR 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):
- 1.85V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS62236DRYR FAQ
1.How can I place an order for TPS62236DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62236DRYR 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 TPS62236DRYR reliable?
The price and inventory of TPS62236DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62236DRYR is usually 5 days.
3.What payment methods are accepted for TPS62236DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62236DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62236DRYR?
TPS62236DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62236DRYR 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 TPS62236DRYR?
For technical support, including TPS62236DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62236DRYR requirements.
6.How does Aetrix verify that TPS62236DRYR is sourced from the original manufacturer or authorized distributors?
All TPS62236DRYR 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 TPS62236DRYR meets industry standards.
7.What is the process for return or replacement of TPS62236DRYR?
All TPS62236DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62236DRYR, 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 TPS62236DRYR part is unused and in its original packaging.
Return procedure for TPS62236DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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