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Texas Instruments TPS62237DRYT
- Part No.:
- TPS62237DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62237DRYT.pdf
- Description:
- IC REG BUCK 3.3V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,811
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Product details
Overview
TPS62237DRYT 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 3.3 V output, 2.05–6 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 TPS62237DRYT datasheet, TPS62237DRYT pinout, TPS62237DRYT application, or TPS62237DRYT equivalent, this device is selected for its minimal 12 mm² solution size, forced-PWM capability for noise-sensitive loads, and verified compatibility with 2.2 μH inductors and 4.7 μF ceramic output capacitors.
Technical Context
The TPS62237DRYT implements a hysteretic PWM controller architecture enabling stable 2 MHz switching across load and line variations, with automatic transition between pulse frequency modulation (PFM) at light loads and quasi-fixed-frequency PWM under medium-to-heavy loads. Its internal 0.7 V reference and resistor-free feedback loop simplify design while maintaining ±2.5% output voltage accuracy over –40°C to 125°C.
It integrates complementary PMOS/NMOS power switches with typical RDS(ON) of 600 mΩ (high-side) and 350 mΩ (low-side), supports 100% duty cycle for low-dropout operation, and features undervoltage lockout (UVLO) with 1.9 V rising threshold and thermal shutdown at 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V - eliminates external feedback resistors; enables single-component BOM reduction. |
| Switching Frequency | 2 MHz - allows use of small 2.2 μH inductors and reduces EMI fundamental frequency above sensitive bands. |
| Max Output Current | 500 mA - supports core logic, RF transceivers, and DSP subsystems without external current boosting. |
| Quiescent Current | 22 μA (PFM mode) - extends battery life in always-on sensor nodes and standby audio subsystems. |
| Input Voltage Range | 2.05 V to 6 V - compatible with single Li-ion (2.7–4.2 V), Li-primary, or dual-alkaline (2.0–3.2 V) sources. |
| Package | USON-6 (1.0 mm × 1.5 mm × 0.6 mm) - enables PCB area <12 mm² and height ≤0.6 mm for ultra-thin wearables. |
| PSRR | Up to 90 dB - suppresses input ripple and noise, making it suitable for analog/RF supply domains. |
Pinout & Package
TPS62237DRYT is housed in a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm with wettable flanks, optimized for automated optical inspection and high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Primary input supply connection (2.05–6 V); requires local 2.2 μF ceramic decoupling. |
| GND | Power Ground | System ground reference for both power and control circuitry; must be low-impedance plane tie. |
| EN | Enable Control | Active-high digital enable; floating not allowed-must be pulled high via external resistor or MCU GPIO. |
| MODE | Operating Mode Select | Low = auto PFM/PWM transition; High = forced PWM; no internal pull-up/down except on TPS622319. |
| SW | Switch Node | Connection point for external inductor; carries high di/dt switching current-requires tight layout routing. |
| FB | Feedback Input | Internally connected to 3.3 V divider; not externally accessible-no external resistor network required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution footprint | 12 mm² total PCB area using only 2.2 μH inductor + 4.7 μF capacitor-ideal for hearing aids and smart patches. |
| Forced PWM mode | Eliminates pulse skipping noise; enables predictable EMI filtering and stable regulation for RF/analog supplies. |
| 100% duty-cycle operation | Supports dropout as low as VOUT − VIN ≈ 0 V-critical for Li-ion end-of-discharge operation down to 3.3 V. |
| High PSRR (90 dB) | Rejects >99.9% of input ripple at 100 kHz-enables clean power delivery to ADCs, PLLs, and audio codecs. |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction temp; resumes at 130°C-prevents thermal runaway during sustained 500 mA loads. |
Applications
| Portable Audio Systems | Wireless Sensor Nodes |
|---|---|
Use Scenario: Powering MEMS microphones and Class-D audio amplifiers in Bluetooth earbuds. IC Role / Device Role / Timing Role: Primary 3.3 V rail regulator replacing inefficient LDOs to extend battery runtime. Use Value: 94% peak efficiency and 22 μA quiescent current directly increase playback time by >30% vs. LDO-based designs. |
Use Scenario: Supplying sub-100 μA active-sleep cycles in Zigbee/Thread end-node sensors. IC Role / Device Role / Timing Role: Always-on system power manager with fast wake-up and minimal leakage. Use Value: PFM-mode operation maintains >85% efficiency at 10 μA load-reducing average system current by 4× vs. linear regulators. |
| Digital Camera Modules | Low-Power DSP Cores |
Use Scenario: Providing stable 3.3 V to image signal processors (ISPs) and CMOS image sensors. IC Role / Device Role / Timing Role: Low-noise, high-PSRR supply rail isolating analog pixel data paths from digital switching noise. Use Value: 90 dB PSRR and <10 mVPP output ripple prevent fixed-pattern noise and color channel crosstalk. |
Use Scenario: Delivering core voltage to ARM Cortex-M0+/M4F microcontrollers in industrial edge devices. IC Role / Device Role / Timing Role: Main system regulator supporting dynamic voltage scaling and deep-sleep transitions. Use Value: Soft-start and pre-bias start-up ensure glitch-free boot and deterministic reset behavior across voltage ramps. |
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 control interface. | Targets lower-voltage logic cores (e.g., 1.8 V I/O, memory interfaces) instead of 3.3 V peripherals. | Select when system requires 1.8 V rail with same size, efficiency, and layout reuse. |
| TPS62238DRYT | Fixed 2.25 V output; same 2 MHz frequency, 500 mA rating, and USON-6 package. | Suitable for intermediate voltage rails (e.g., RF front-end bias, mixed-signal analog sections). | Choose for 2.25 V applications where 3.3 V is excessive and efficiency at partial load matters. |
Compared with TPS62237DRYT, TPS62231DRYT and TPS62238DRYT share identical thermal performance, quiescent current, and PCB footprint-but differ solely in factory-trimmed output voltage, enabling direct BOM substitution without layout changes when voltage requirements shift.
Availability
TPS62237DRYT is available at Aetrix Electronics and suitable for portable audio systems, wireless sensor networks, and digital camera modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS62237DRYT 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies for industrial, automotive, and consumer markets.
The TPS6223x family was designed specifically for ultra-compact, high-efficiency battery-powered applications-emphasizing minimal solution size, low quiescent current, and seamless LDO replacement in space- and energy-constrained portable electronics.
FAQ
What is the output voltage of the TPS62237DRYT?
The TPS62237DRYT provides a factory-trimmed fixed output voltage of 3.3 V. This eliminates the need for external feedback resistors and simplifies PCB layout. The output voltage accuracy is ±2.5% over temperature (–40°C to 125°C) and load, with a typical reference voltage of 0.7 V internally scaled to deliver precisely 3.3 V at the VOUT pin.
Does the TPS62237DRYT require external feedback components?
No, the TPS62237DRYT does not require external feedback components. It integrates a precision resistor divider optimized for 3.3 V output, connecting directly to the FB pin internally. The FB pin is not user-accessible for adjustment-this fixed configuration ensures consistent regulation and reduces BOM count and layout complexity.
Can the TPS62237DRYT operate with a 2.05 V input supply?
Yes, the TPS62237DRYT supports input voltages as low as 2.05 V, enabling operation from partially discharged Li-ion cells or dual-alkaline batteries. At this minimum VIN, it maintains regulation down to 3.3 V output using 100% duty-cycle operation-critical for maximizing usable battery capacity in portable systems.
What is the purpose of the MODE pin on the TPS62237DRYT?
The MODE pin on the TPS62237DRYT selects between two operating modes: pulling MODE low enables automatic PFM/PWM transition for peak efficiency across load range, while pulling MODE high forces continuous PWM operation to eliminate audible noise and enable predictable EMI filtering-essential for RF and audio subsystems.
Is the TPS62237DRYT pin-compatible with other TPS6223x variants?
Yes, all TPS6223x devices-including TPS62237DRYT-are fully pin-compatible within the USON-6 (DRY) package. They share identical pin functions (VIN, GND, EN, MODE, SW, FB), thermal characteristics, and layout requirements, allowing voltage-variant substitutions without PCB redesign-provided external components match recommended values.
TPS62237DRYT 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):
- 3.3V
- 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)
TPS62237DRYT FAQ
1.How can I place an order for TPS62237DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62237DRYT 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 TPS62237DRYT reliable?
The price and inventory of TPS62237DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62237DRYT is usually 5 days.
3.What payment methods are accepted for TPS62237DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62237DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62237DRYT?
TPS62237DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62237DRYT 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 TPS62237DRYT?
For technical support, including TPS62237DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62237DRYT requirements.
6.How does Aetrix verify that TPS62237DRYT is sourced from the original manufacturer or authorized distributors?
All TPS62237DRYT 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 TPS62237DRYT meets industry standards.
7.What is the process for return or replacement of TPS62237DRYT?
All TPS62237DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62237DRYT, 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 TPS62237DRYT part is unused and in its original packaging.
Return procedure for TPS62237DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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