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Texas Instruments TPS62302DRCR
- Part No.:
- TPS62302DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62302DRCR.pdf
- Description:
- IC REG BUCK 1.6V 500MA 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,955
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Product details
Overview
TPS62302DRCR from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter in QFN-10 packaging, delivering 1.6 V at up to 500 mA output current with 86 µA quiescent current and ±0.5%/+1.3% DC voltage accuracy over temperature. It operates from 2.7 V to 6 V input, supports power-save mode for light loads, and integrates P/N-channel MOSFETs for high-efficiency battery-powered applications such as smartphones and PDAs.
For engineers reviewing the TPS62302DRCR datasheet, TPS62302DRCR pinout, TPS62302DRCR application, or TPS62302DRCR equivalent, key selection criteria include its fixed 1.6 V output, 3-MHz switching frequency, QFN-10 (3×3 mm) package, 35 ns minimum on-time, and support for external synchronization via MODE/SYNC pin - all critical for compact, low-noise portable power designs.
Technical Context
The TPS62302DRCR uses a voltage-mode PWM controller with input voltage feed-forward to achieve best-in-class load and line transient response. Its 3-MHz fixed-frequency operation enables use of sub-1 µH inductors and small ceramic capacitors while maintaining stability across 0–500 mA load range.
It features dual current limiting (P-MOS: 670–890 mA; N-MOS: ±460–±740 mA), thermal shutdown at 150°C, and integrated soft-start. The MODE/SYNC pin enables automatic PFM/PWM mode transition or forced PWM operation, and supports on-the-fly synchronization to external 3-MHz clocks for multi-rail noise coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V - eliminates need for external feedback resistors; optimized for core voltage of low-power DSPs and application processors. |
| Max Output Current | 500 mA - sufficient for single-core ARM Cortex-M or baseband ICs in handheld devices without thermal derating on standard PCBs. |
| Switching Frequency | 3 MHz (2.65–3.35 MHz typical) - enables use of 0.9–2.2 µH inductors and 4.7–10 µF ceramic output capacitors, reducing solution footprint. |
| Quiescent Current | 86 µA in PFM mode - extends battery life in standby/sleep states for Li-ion-powered systems with intermittent active duty cycles. |
| DC Voltage Accuracy | −0.5% / +1.3% over −40°C to +85°C - ensures reliable logic-level compliance for 1.6 V I/O domains across industrial temperature range. |
| Input Voltage Range | 2.7 V to 6 V - supports single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd (3.6–4.5 V), and USB-powered (5 V) configurations. |
| Min On-Time | 35 ns - enables stable regulation at high duty cycles (e.g., 1.6 V out from 2.7 V in ≈ 59%), critical for low-dropout operation. |
Pinout & Package
TPS62302DRCR is packaged in a 10-pin QFN (3 mm × 3 mm, 0.5 mm pitch) with exposed PowerPAD™ thermal pad connected internally to PGND. This package delivers 49°C/W junction-to-ambient thermal resistance on low-K PCBs, supporting continuous 500 mA operation at +85°C ambient with minimal heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input for output stage | Connects directly to input bypass capacitor; handles full input current (up to 500 mA peak); must be decoupled within 2 mm. |
| AVIN | Analog input supply | Separate analog rail for internal reference and control circuitry; improves PSRR and reduces noise coupling into feedback path. |
| EN | Enable control input | Active-high logic input; <1 µA leakage; must be terminated - floating causes undefined startup behavior and potential shoot-through. |
| MODE/SYNC | Mode selection & sync input | GND = auto PFM/PWM; VIN = forced PWM; external 3-MHz clock = synchronized operation; requires 1.3 V min high-level threshold. |
| VOUT | Output voltage sense | Direct connection to output node; used for internal compensation and soft-start ramp; not a current-sense point. |
| PGND | Power ground return | Low-impedance return path for switch node current; must be tied to PowerPAD™ and routed separately from AGND to minimize noise. |
| SW | Switch node | Drain connection of internal P/N-MOSFETs; carries high di/dt; requires tight layout with minimal loop area to reduce EMI. |
| AGND | Analog ground | Reference for FB/ADJ/EN/MODE pins; connect to PGND only at single point near PowerPAD™ to avoid ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Up to 93% efficiency at 3-MHz | Enables >4.5-hour runtime on 800 mAh Li-ion battery powering 1.6 V/300 mA load, minimizing heat generation in sealed enclosures. |
| 35 ns minimum on-time | Supports 1.6 V output from 2.7 V input (59% duty cycle) without pulse-skipping instability, ensuring clean regulation during brownout conditions. |
| Power-save mode at light load | Reduces quiescent current to 86 µA while maintaining regulation, extending shelf life and standby time in always-on IoT sensors. |
| Synchronizable to external 3-MHz clock | Allows phase alignment of multiple TPS623xx converters to suppress beat frequencies and simplify EMI filtering in multi-rail PMIC designs. |
| Integrated active power-down sequencing | Provides controlled discharge path (30–50 Ω) from VOUT to PGND during shutdown, preventing back-powering of upstream rails or latch-up in system-level sequencing. |
Applications
| Smartphone Core Power | Bluetooth Audio SoC Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A53 core in entry-level smartphone requiring stable 1.6 V at ≤400 mA during video decode. IC Role / Device Role / Timing Role: Primary buck regulator supplying processor VDD_CORE; regulates against fast load transients induced by bursty instruction execution. Use Value: 3-MHz switching and 35 ns min on-time maintain regulation during 10–100 mA/µs load steps, eliminating need for large bulk capacitance. |
Use Scenario: Supplies 1.6 V to CSR8675 Bluetooth audio SoC in wireless earbuds with strict EMI limits. IC Role / Device Role / Timing Role: Low-noise power source synchronized to system clock to avoid audible heterodyne tones in DAC output. Use Value: Forced PWM mode (via MODE/SYNC = VIN) fixes switching frequency for predictable EMI filtering; 93% efficiency extends 4-hour playback. |
| PDA Application Processor Rail | USB-Powered DSL Modem PHY |
Use Scenario: Delivers 1.6 V to TI OMAP-L138 processor in industrial PDA operating from 3.7 V Li-ion battery. IC Role / Device Role / Timing Role: Main system rail enabling dynamic voltage scaling between 1.6 V (active) and 1.2 V (idle) via ADJ pin modulation. Use Value: Adjustable output capability (via ADJ pin) allows re-use across multiple voltage bins without BOM change; ±0.5% accuracy ensures timing margin compliance. |
Use Scenario: Generates 1.6 V for ADSL2+ PHY chip in USB-powered DSL modem drawing 350 mA peak from 5 V bus. IC Role / Device Role / Timing Role: Point-of-load regulator converting USB 5 V to 1.6 V with minimal board space and no external LDO post-regulation. Use Value: QFN-10 package (3×3 mm) and 1 µH inductor enable <25 mm² total solution size; 2.7–6 V input accommodates USB voltage tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62303DRCR | Fixed 1.8 V output; identical pinout, package, and electrical specs except output voltage and FB reference. | Targets 1.8 V I/O domains (e.g., SDIO, UART) rather than 1.6 V core rails; requires different output capacitor ESR tuning for stability. | Select when system requires 1.8 V instead of 1.6 V; no PCB changes needed but verify load transient response with adjusted VOUT. |
| TPS62321DRCR | Fixed 1.5 V output; same QFN-10 package and 3-MHz operation, but includes integrated active power-down sequencing (RDIS = 30–50 Ω). | Designed for systems requiring controlled VOUT discharge during shutdown (e.g., FPGA configuration retention); higher cost due to added functionality. | Choose when coordinated power-down with downstream logic is required; otherwise TPS62302DRCR offers lower cost and identical performance for basic 1.6 V regulation. |
Compared with TPS62303DRCR and TPS62321DRCR, the TPS62302DRCR provides optimal balance of cost, size, and efficiency for 1.6 V core supplies - it lacks the 1.8 V output of TPS62303DRCR and the dedicated discharge resistor of TPS62321DRCR, making it the most economical choice where those features are unnecessary.
Availability
TPS62302DRCR is available at Aetrix Electronics and suitable for smartphone power management, Bluetooth audio SoC supplies, and USB-powered DSL modem PHY circuits requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS62302DRCR 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 decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS623xx family was designed specifically for ultra-compact, high-frequency synchronous buck conversion in battery-powered handheld devices - prioritizing minimal solution size, low quiescent current, and robust transient response under dynamic loads.
FAQ
What is the output voltage of the TPS62302DRCR?
The TPS62302DRCR provides a fixed 1.6 V output voltage. This value is factory-trimmed and does not require external feedback resistors. The DC accuracy is specified as −0.5% / +1.3% over the full −40°C to +85°C operating temperature range, ensuring reliable operation in consumer and industrial environments. The TPS62302DRCR is not adjustable - unlike the TPS62300 or TPS62320, its ADJ and FB pins are not connected internally for this variant.
What package type does the TPS62302DRCR use?
The TPS62302DRCR is offered exclusively in the DRC package: a 10-pin QFN (3 mm × 3 mm, 0.5 mm pitch) with an exposed PowerPAD™ thermal pad. This package is distinct from the YZD CSP-8 variant used by other members of the TPS623xx family. The DRC package delivers 49°C/W junction-to-ambient thermal resistance on standard low-K PCBs and supports continuous 500 mA output at +85°C ambient.
How does the TPS62302DRCR handle light-load efficiency?
The TPS62302DRCR automatically enters power-save mode (pulse frequency modulation) at light loads to maintain high efficiency. In this mode, it draws only 86 µA quiescent current while regulating output voltage. The device pulses intermittently - ramping up VOUT when it drops below −1.5% of nominal (1.576 V), then returning to sleep - resulting in slightly lower average output voltage but significantly reduced switching losses compared to forced PWM operation.
Can the TPS62302DRCR be synchronized to an external clock?
Yes, the TPS62302DRCR supports external synchronization via the MODE/SYNC pin. When driven with a 3-MHz square wave (20–80% duty cycle), the device locks its switching frequency to the external signal's falling edge. This enables precise phase alignment across multiple TPS623xx converters in multi-rail systems, simplifying EMI filter design and eliminating beat frequencies that could interfere with sensitive analog or RF sections.
What is the minimum recommended input voltage for the TPS62302DRCR?
The TPS62302DRCR has a minimum recommended input voltage of 2.7 V, as specified in the absolute maximum ratings and operating conditions. Below this, undervoltage lockout (UVLO) activates at 2.4 V (typical), disabling the device. At 2.7 V input, the converter can still deliver regulated 1.6 V output with ~59% duty cycle - enabled by its 35 ns minimum on-time - making it suitable for deeply discharged Li-ion cells down to 2.7 V.
TPS62302DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- 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):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS62302DRCR FAQ
1.How can I place an order for TPS62302DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62302DRCR 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 TPS62302DRCR reliable?
The price and inventory of TPS62302DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62302DRCR is usually 5 days.
3.What payment methods are accepted for TPS62302DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62302DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62302DRCR?
TPS62302DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62302DRCR 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 TPS62302DRCR?
For technical support, including TPS62302DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62302DRCR requirements.
6.How does Aetrix verify that TPS62302DRCR is sourced from the original manufacturer or authorized distributors?
All TPS62302DRCR 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 TPS62302DRCR meets industry standards.
7.What is the process for return or replacement of TPS62302DRCR?
All TPS62302DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62302DRCR, 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 TPS62302DRCR part is unused and in its original packaging.
Return procedure for TPS62302DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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