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Texas Instruments TPS62A02NDRLR
- Part No.:
- TPS62A02NDRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS62A02NDRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,949
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Product details
Overview
TPS62A02NDRLR from Texas Instruments is a 2-A synchronous buck DC/DC converter in SOT-563 (6-pin) package, operating from 2.5 V to 5.5 V input and delivering adjustable 0.6 V to VIN output voltage with 2.4 MHz fixed-frequency PWM or power-save mode, 1% feedback accuracy, and active output discharge - used in compact battery-powered point-of-load supplies for IP cameras and SSDs.
For engineers reviewing the TPS62A02NDRLR datasheet, TPS62A02NDRLR pinout, TPS62A02NDRLR application, or TPS62A02NDRLR equivalent, key selection criteria include its 2-A output capability in ultra-small SOT-563, OUT pin instead of PG (enabling direct output sensing), 23 µA quiescent current, thermal shutdown at 170°C, and compatibility with 1.0 µH inductors and 22 µF ceramic output capacitors.
Technical Context
The TPS62A02NDRLR implements adaptive off-time peak-current control with fixed 2.4 MHz switching frequency in PWM mode and automatic transition to power-save mode at light loads. Its internal soft-start limits inrush current, while 100% duty-cycle operation enables low dropout regulation near VIN.
This variant features an OUT pin (Pin 6) instead of PG, supporting direct output voltage sensing for improved regulation accuracy in noise-sensitive applications. It integrates high-side (100 mΩ) and low-side (67 mΩ) MOSFETs optimized for 2-A continuous output, with HICCUP short-circuit protection and thermal shutdown at 170°C with 20°C hysteresis.
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 rails without external regulators. |
| Output Current | 2 A continuous - delivers full rated current in SOT-563 package with RθJA = 157.3°C/W. |
| Switching Frequency | 2.4 MHz - enables use of small 1.0 µH inductors and minimizes EMI filtering requirements. |
| Feedback Accuracy | ±1% over –40°C to +125°C - ensures stable output regulation across industrial temperature range. |
| Quiescent Current | <23 µA - extends battery life in always-on IoT and portable devices. |
| Thermal Shutdown | 170°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
| High-Side RDS(on) | 100 mΩ at 5 V - reduces conduction loss and improves efficiency at medium-to-heavy loads. |
Pinout & Package
SOT-563 (DRL) 6-pin package, 1.60 mm × 1.60 mm footprint, thermally enhanced for high-power density in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power ground reference | Primary return path for high-current switch node and IC bias; must be connected to low-impedance PCB ground plane. |
| SW (Pin 2) | Switch node | Connects to inductor and internal high-/low-side FETs; carries high di/dt; requires tight layout and minimal trace length. |
| VIN (Pin 3) | Input supply | Accepts 2.5–5.5 V; requires local 4.7 µF ceramic capacitor placed adjacent to pin for high-frequency decoupling. |
| EN (Pin 4) | Enable control | Logic-high (>1.2 V) enables regulation; logic-low (<0.4 V) places device in shutdown with 0.01–2 µA ISD. |
| FB (Pin 5) | Feedback input | Senses output via resistor divider; internal 600 mV reference enables precise output voltage setting (VOUT = 0.6 V × (1 + R1/R2)). |
| OUT (Pin 6) | Output voltage sense | Dedicated output-sense terminal (not PG) - improves load regulation and transient response by eliminating PCB trace IR drop error. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PSM) | Automatically engages at light loads to maintain >85% efficiency down to 1 mA, reducing system standby power. |
| Active Output Discharge | Internally discharges output capacitor when disabled, preventing floating voltages and enabling safe hot-plug sequencing. |
| HICCUP Short-Circuit Protection | Shuts down after 32 overcurrent events, then auto-restarts - prevents thermal runaway during sustained fault conditions. |
| 100% Duty Cycle Operation | Enables regulation with VIN – VOUT as low as IOUT × RDS(on), critical for low-dropout battery applications near end-of-discharge. |
| Internal Soft Start | 1-ms fixed ramp time prevents inrush current spikes and stabilizes start-up into pre-biased outputs. |
Applications
| IP Network Camera Power | Solid State Drive Core Supply |
|---|---|
Use Scenario: Powers image sensor, ISP, and Wi-Fi SoC in compact outdoor IP cameras with wide ambient temperature range and limited PCB area. IC Role / Device Role / Timing Role: Primary 1.8 V/2 A point-of-load regulator converting 5 V USB or PoE-derived rail, with fast transient response to burst-mode video processing. Use Value: 2.4 MHz switching allows tiny 1.0 µH inductor and 22 µF X7R ceramic output cap, reducing solution size by >40% vs lower-frequency alternatives. | Use Scenario: Supplies 1.2 V core voltage to NAND controller and DRAM in M.2 SATA/NVMe SSDs where thermal headroom and board space are constrained. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in PSM at idle and forced PWM during write bursts, synchronized to host activity. Use Value: 1% FB accuracy and OUT pin sensing ensure stable 1.2 V ±12 mV under dynamic load steps up to 2 A, meeting JEDEC DDR timing margins. |
| Battery-Powered Portable Scanner | Multi-Function Printer Logic Rail |
Use Scenario: Powers ARM Cortex-M7 microcontroller and CMOS image sensor in handheld document scanners powered by 2-cell Li-ion (6–8.4 V) with buck-boost front-end. IC Role / Device Role / Timing Role: Secondary 3.3 V/2 A regulator downstream of primary converter, delivering clean, low-noise supply for analog front-end and ADC. Use Value: <23 µA quiescent current extends battery runtime in sleep mode; active discharge prevents residual voltage on sensor interface lines. | Use Scenario: Generates 1.8 V logic rail for print engine ASIC and interface PHY in office MFPs requiring high reliability and long service life. IC Role / Device Role / Timing Role: Industrial-grade POL converter with thermal shutdown (170°C) and HICCUP protection, operating continuously at 85°C ambient. Use Value: SOT-563 package withstands reflow and mechanical stress; 157.3°C/W RθJA enables 2 A operation without heatsink in standard FR4 layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62A02DRLR | Same 2-A SOT-563 package and specs, but uses PG (power-good) pin instead of OUT pin. | Requires external pull-up for sequencing; less accurate load regulation due to FB-only sensing. | Select when system-level power sequencing with PG signal is required and PCB layout accommodates pull-up resistor. |
| TLV62569PDDCR | 1-A rating, SOT-23-6 package, 2.5–5.5 V input, 2.4 MHz, but lacks OUT pin and active discharge. | Lower current capacity and no output-sense capability; suitable only for sub-1-A loads with relaxed regulation needs. | Select only if output current ≤1 A and space allows larger SOT-23 footprint; verify thermal performance at full load. |
Compared with TPS62A02DRLR, TPS62A02NDRLR trades PG functionality for superior output regulation via dedicated OUT pin; compared with TLV62569PDDCR, it doubles output current and adds active discharge, making it essential for 2-A, noise-sensitive, or hot-plug-capable designs.
Availability
TPS62A02NDRLR is available at Aetrix Electronics and suitable for IP network cameras, solid state drives, and battery-powered portable scanners requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for TPS62A02NDRLR 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 DC/DC converter innovation.
The TPS62A0x family was designed for high-efficiency, space-constrained point-of-load applications in consumer, industrial, and computing systems - emphasizing ultra-small packaging, low IQ, and robust protection features.
FAQ
What is the function of Pin 6 (OUT) on the TPS62A02NDRLR?
Pin 6 on the TPS62A02NDRLR is an output voltage sense terminal (OUT), not a power-good (PG) pin. It provides direct feedback from the load point to improve regulation accuracy by compensating for PCB trace resistance voltage drop. This differs from the PG-equipped TPS62A02DRLR and enables tighter load regulation in high-current or noisy environments. The TPS62A02NDRLR relies on FB pin for regulation while using OUT for precision sensing.
Does the TPS62A02NDRLR support forced PWM (FPWM) mode?
No, the TPS62A02NDRLR operates exclusively in PSM/PWM auto-mode - it automatically switches between pulse-width modulation at medium/heavy loads and power-save mode at light loads to maximize efficiency across the full 0–2 A range. The FPWM variant is the TPS62A02NADRLR. Using TPS62A02NDRLR in systems requiring constant-frequency operation (e.g., for EMI filtering predictability) requires verifying that PSM transitions meet system noise and transient response requirements.
What is the recommended output capacitor for TPS62A02NDRLR at 1.8 V output?
For 1.8 V output, the TPS62A02NDRLR requires a minimum 22 µF ceramic output capacitor (X7R or X5R dielectric, 10 V rating), placed close to SW and GND pins. TI validates this value with 1.0 µH inductors for stability and ripple performance. A 120 pF feedforward capacitor across the upper feedback resistor is optional to improve transient response and reduce output ripple in PSM mode. Larger capacitance (e.g., 47 µF) further lowers ripple but is not required for basic operation.
How does the TPS62A02NDRLR handle short-circuit conditions?
The TPS62A02NDRLR employs HICCUP short-circuit protection: upon detecting 32 consecutive overcurrent events (triggered by high-side peak current limit of 2.7–3.4 A), it halts switching for ~100 µs, then attempts automatic restart. This cycle repeats until the fault clears, preventing thermal damage while maintaining self-recovery capability. Unlike latch-off protection, HICCUP allows continued monitoring and recovery without external reset - a key safety feature for unattended battery-powered devices using TPS62A02NDRLR.
Can the TPS62A02NDRLR start into a pre-biased output?
Yes, the TPS62A02NDRLR supports start-up into a pre-biased output capacitor. Its internal soft-start circuitry detects the existing output voltage and ramps the target output from that level, avoiding reverse current flow or output voltage overshoot. This capability is essential in systems with multiple power rails or hot-swap architectures where downstream circuitry may retain charge. The TPS62A02NDRLR achieves smooth, controlled start-up without external components - a verified behavior documented in TI's SLUSEG9E datasheet.
TPS62A02NDRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TPS62A0x
- 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
TPS62A02NDRLR FAQ
1.How can I place an order for TPS62A02NDRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62A02NDRLR 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 TPS62A02NDRLR reliable?
The price and inventory of TPS62A02NDRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62A02NDRLR is usually 5 days.
3.What payment methods are accepted for TPS62A02NDRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62A02NDRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62A02NDRLR?
TPS62A02NDRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62A02NDRLR 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 TPS62A02NDRLR?
For technical support, including TPS62A02NDRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62A02NDRLR requirements.
6.How does Aetrix verify that TPS62A02NDRLR is sourced from the original manufacturer or authorized distributors?
All TPS62A02NDRLR 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 TPS62A02NDRLR meets industry standards.
7.What is the process for return or replacement of TPS62A02NDRLR?
All TPS62A02NDRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62A02NDRLR, 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 TPS62A02NDRLR part is unused and in its original packaging.
Return procedure for TPS62A02NDRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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