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Texas Instruments TPS62A02DRLR
- Part No.:
- TPS62A02DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS62A02DRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:7,288
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Product details
Overview
TPS62A02DRLR from Texas Instruments is a 2-A, synchronous step-down DC/DC converter in SOT-563 (6-pin) package, operating from 2.5 V to 5.5 V input and delivering adjustable output from 0.6 V to VIN. It features 2.4 MHz fixed-frequency PWM operation, <23 µA quiescent current, 1% feedback accuracy over –40°C to 125°C, and integrated 100 mΩ/67 mΩ high-/low-side MOSFETs. It serves as a compact, high-efficiency point-of-load regulator in space-constrained battery-powered systems.
For engineers reviewing the TPS62A02DRLR datasheet, TPS62A02DRLR pinout, TPS62A02DRLR application, or TPS62A02DRLR equivalent, key selection criteria include its 2-A continuous output capability in the ultra-small 1.6 mm × 1.6 mm SOT-563 package, PSM/PWM mode auto-transition for wide-load efficiency, active output discharge, and power-good functionality - all critical for low-noise, thermally constrained embedded power rails.
Technical Context
The TPS62A02DRLR uses adaptive off-time peak-current control with a nominal 2.4 MHz switching frequency, maintaining stable regulation across input (2.5–5.5 V), output (0.6–VIN), and load (0–2 A) variations. Its architecture supports 100% duty-cycle low-dropout operation and automatic transition between pulse-width modulation (PWM) at medium/heavy loads and power-save mode (PSM) at light loads.
It integrates undervoltage lockout (UVLO: 2.4 V rising threshold), thermal shutdown (170°C trip, 20°C hysteresis), HICCUP short-circuit protection, internal soft-start (1 ms), and active output discharge. The device requires no external compensation and supports pre-biased start-up, making it suitable for dynamically scaled SoC and MCU supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion, USB, and 3.3 V/5 V system rails without external LDO pre-regulation. |
| Output Current | 2 A continuous - delivers full rated current in SOT-563 package with RθJA = 157.3°C/W, enabling compact 1.6 mm × 1.6 mm PCB footprints. |
| Switching Frequency | 2.4 MHz - allows use of small 1.0 µH inductors and ceramic capacitors, minimizing solution size and EMI filtering requirements. |
| Quiescent Current | <23 µA - extends battery life in always-on or low-duty-cycle IoT sensors and wearables. |
| Feedback Accuracy | ±1% (0°C to 125°C) - ensures tight output voltage regulation for sensitive analog and RF circuitry without trimming. |
| High/Low-Side RDS(on) | 100 mΩ / 67 mΩ - reduces conduction losses and thermal rise at full load, supporting >90% efficiency at 1.8 V/2 A with 5 V input. |
| Power-Good Output | Open-drain PG pin - provides reliable rail sequencing and fault indication for multi-rail systems without external monitoring circuitry. |
Pinout & Package
SOT-563 (DRL) 6-pin package: 1.60 mm × 1.60 mm footprint, 0.5 mm pitch, thermally enhanced exposed pad (GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for power stage and control logic; must be connected to low-impedance PCB ground plane for stability and thermal performance. |
| SW | Switch node | Connects to inductor and internal high-/low-side FETs; requires short, low-inductance trace to minimize switching noise and voltage spikes. |
| VIN | Input supply | Accepts 2.5–5.5 V; requires local 4.7 µF ceramic capacitor placed adjacent to pin for high-frequency decoupling. |
| PG | Power-good indicator | Open-drain output asserting high when VOUT is within ±3.5% of target; needs external pull-up ≤5.5 V for sequencing or fault detection. |
| FB | Feedback input | Monitors resistor divider output; sets VOUT = 0.6 V × (1 + R1/R2); input leakage <100 nA enables high-impedance dividers. |
| EN | Enable control | Active-high logic input (1.2 V threshold); must be terminated - floating EN causes undefined behavior and potential shoot-through. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PSM) | Automatically engages below ~100 mA load to reduce switching frequency and quiescent current, sustaining >85% efficiency at 1 mA while minimizing idle power draw. |
| 100% Duty-Cycle Operation | Enables dropout as low as IOUT × (RDS(on) + DCRL) - critical for maintaining regulation near input rail in battery discharge scenarios. |
| Internal Soft-Start | Fixed 1 ms ramp time prevents inrush current into output capacitors and avoids brown-out on weak sources like coin cells or high-ESR batteries. |
| HICCUP Short-Circuit Protection | Disables switching after 32 overcurrent events, then auto-retries every ~100 µs - protects against sustained shorts without latch-off or manual reset. |
| Active Output Discharge | Internally discharges VOUT via SW pin when disabled - eliminates need for external bleed resistors and ensures fast, controlled power-down. |
Applications
| Wireless Router Power Rail | IP Network Camera Core Supply |
|---|---|
|
Use Scenario: Providing clean, efficient 1.2 V core voltage to dual-core ARM processor and DDR interface under dynamic load (0–2 A). IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering regulated 1.2 V at up to 2 A with 2.4 MHz switching to minimize filter component size. Use Value: Achieves >92% efficiency at 1.2 V/2 A (5 V input), reducing thermal load in sealed enclosures and eliminating need for heatsinking. |
Use Scenario: Generating 1.8 V for image signal processor (ISP) and 3.3 V for CMOS sensor interface in compact outdoor IP camera housing. IC Role / Device Role / Timing Role: Adjustable-output buck converter configured for 1.8 V using external resistor divider; PG pin sequences ISP enable after stable rail. Use Value: 1% FB accuracy ensures consistent ISP performance across temperature; active discharge prevents residual voltage from interfering with sensor reset timing. |
| Battery-Powered SSD Module | Set-Top Box SoC Core Supply |
|
Use Scenario: Regulating 0.85 V core voltage for NVMe controller IC from a 3.3 V intermediate rail in portable SSD enclosure. IC Role / Device Role / Timing Role: High-efficiency, low-IQ point-of-load converter operating in PSM during standby and PWM during burst writes. Use Value: <23 µA quiescent current extends battery runtime in host-less operation; 2.4 MHz switching enables tiny 0.47 µH inductor and 10 µF output cap. |
Use Scenario: Delivering 1.1 V to 1.3 V SoC core in consumer set-top box with strict EMI limits and thermal constraints. IC Role / Device Role / Timing Role: Main SoC buck regulator with PG output coordinating boot sequence with memory and video subsystems. Use Value: Pin-to-pin compatibility with TLV62585 simplifies design reuse; 100% mode operation maintains regulation during deep sleep states with minimal input-output delta. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62585DRLR | 1-A rated, identical SOT-563 package and pinout; shares same 2.4 MHz frequency and PSM/PWM architecture but lower current capability. | Not suitable for 2-A loads; acceptable only where peak current ≤1 A and thermal margin permits derating. | Select TLV62585DRLR only if output current requirement is ≤1 A and board layout re-use is prioritized over headroom. |
| TPS62A02ADRLR | Same 2-A rating and SOT-563 package, but forces PWM mode across entire load range - no PSM transition, higher light-load IQ (~45 µA). | Preferred for noise-sensitive applications requiring constant-frequency operation (e.g., RF sections), but sacrifices battery life in low-power states. | Choose TPS62A02ADRLR when deterministic EMI profile and absence of PSM-induced frequency variation outweigh quiescent current concerns. |
Compared with TLV62585DRLR, TPS62A02DRLR doubles output current in the same footprint; compared with TPS62A02ADRLR, it adds PSM for superior light-load efficiency - making it optimal for battery-powered systems requiring both high peak current and long standby life.
Availability
TPS62A02DRLR is available at Aetrix Electronics and suitable for wireless routers, IP network cameras, and battery-powered SSD modules requiring stable component supply, full production traceability, and long-term lifecycle support.
Supply support for TPS62A02DRLR 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.
The TPS62A0x family was designed specifically for space-constrained, battery-sensitive applications demanding high efficiency across wide load ranges - targeting next-generation IoT edge nodes, portable imaging devices, and compact consumer electronics.
FAQ
What is the maximum continuous output current of the TPS62A02DRLR?
The TPS62A02DRLR delivers up to 2 A continuous output current in its SOT-563 package under recommended operating conditions (TJ ≤ 125°C, VIN ≥ 3.3 V). At lower input voltages (<3.3 V) or ambient temperatures >85°C, thermal derating may apply per EVM measurements - consult thermal data (RθJA = 157.3°C/W) for layout-specific derating.
Does the TPS62A02DRLR support pre-biased output startup?
Yes, the TPS62A02DRLR supports pre-biased output startup: when enabled, it begins regulation from the existing output voltage rather than forcing a hard ramp from 0 V. This prevents reverse current flow into the output capacitor and avoids disrupting downstream circuitry already powered by backup rails or other converters.
What is the function of the PG pin on the TPS62A02DRLR?
The PG (power-good) pin on the TPS62A02DRLR is an open-drain output that asserts high when the output voltage reaches and remains within ±3.5% of the target value. It is used for power-rail sequencing, system reset coordination, and fault monitoring - requiring an external pull-up resistor to ≤5.5 V and must not be left floating.
Can the TPS62A02DRLR operate with a 2.5 V input and 2.4 V output?
Yes, the TPS62A02DRLR supports 100% duty-cycle operation, enabling regulation down to VOUT = VIN − IOUT × (RDS(on) + DCRL). With 2.5 V input and 2.4 V output at 2 A, dropout is ~100 mV - well within capability given its 100 mΩ high-side RDS(on) and typical inductor DCR <30 mΩ.
How does the TPS62A02DRLR handle short-circuit conditions?
The TPS62A02DRLR implements HICCUP short-circuit protection: upon detecting 32 consecutive overcurrent events, it halts switching for ~100 µs, then automatically retries. This cycle repeats until the fault clears - preventing thermal runaway while allowing recovery without manual intervention or external circuitry.
TPS62A02DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS62A02DRLR FAQ
1.How can I place an order for TPS62A02DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62A02DRLR 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 TPS62A02DRLR reliable?
The price and inventory of TPS62A02DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62A02DRLR is usually 5 days.
3.What payment methods are accepted for TPS62A02DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62A02DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62A02DRLR?
TPS62A02DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62A02DRLR 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 TPS62A02DRLR?
For technical support, including TPS62A02DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62A02DRLR requirements.
6.How does Aetrix verify that TPS62A02DRLR is sourced from the original manufacturer or authorized distributors?
All TPS62A02DRLR 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 TPS62A02DRLR meets industry standards.
7.What is the process for return or replacement of TPS62A02DRLR?
All TPS62A02DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62A02DRLR, 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 TPS62A02DRLR part is unused and in its original packaging.
Return procedure for TPS62A02DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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