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Texas Instruments TPS62A02NADRLR
- Part No.:
- TPS62A02NADRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS62A02NADRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,990
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Product details
Overview
TPS62A02NADRLR from Texas Instruments is a 2-A, synchronous step-down DC/DC converter in SOT-563 (DRL) package, operating from 2.5 V to 5.5 V input and delivering adjustable output from 0.6 V to VIN. It features forced PWM mode, 2.4 MHz switching frequency, <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 for space-constrained battery-powered systems.
For engineers reviewing the TPS62A02NADRLR datasheet, TPS62A02NADRLR pinout, TPS62A02NADRLR application, or TPS62A02NADRLR equivalent, key selection criteria include forced-PWM operation for predictable EMI, SOT-563 footprint compatibility with TLV62585, thermal performance at 2 A under 3.3 V input, and absence of power-good pin (replaced by OUT pin for output voltage sensing).
Technical Context
The TPS62A02NADRLR uses peak-current-mode control with adaptive off-time modulation, maintaining ~2.4 MHz switching frequency across input/output/load variations. Its forced PWM mode eliminates frequency dithering, enabling deterministic EMI filtering and stable loop response under light loads-unlike PSM variants.
This variant integrates an OUT pin (Pin 6) instead of PG, providing direct output voltage sensing for improved regulation accuracy and eliminating external feedback divider errors. It lacks power-good signaling but supports active output discharge and 100% duty-cycle low-dropout operation down to VIN = VOUT + IOUT × (100 mΩ + inductor DCR).
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 wide-input industrial rails without pre-regulation. |
| Output Current | 2 A continuous - delivers full rated current in SOT-563 package with RθJA = 157.3°C/W; derating required above 85°C ambient or below 3.3 V input. |
| Switching Frequency | 2.4 MHz fixed - enables use of small 1.0 µH inductors and ceramic capacitors while simplifying EMI filter design. |
| Feedback Accuracy | ±1% over –40°C to 125°C - ensures tight output regulation across automotive and industrial temperature ranges. |
| Quiescent Current | <23 µA - minimizes standby power loss in always-on subsystems such as real-time clocks or sensor hubs. |
| High-Side RDS(on) | 100 mΩ @ 5 V - reduces conduction loss at 2 A, contributing to >90% efficiency at 1.8 V/2 A with 5 V input. |
| Low-Side RDS(on) | 67 mΩ @ 5 V - lowers synchronous rectification losses, critical for high-current, high-efficiency operation. |
Pinout & Package
SOT-563 (DRL) package: 1.60 mm × 1.60 mm, 6-pin surface-mount, thermally enhanced with exposed pad (not electrically connected per datasheet).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power ground reference | Primary return path for high-frequency switch current; must be connected to low-impedance PCB ground plane. |
| SW (Pin 2) | Switch node | Connects to inductor and internal HS/LS FETs; requires minimal trace length and tight layout to reduce EMI and ringing. |
| VIN (Pin 3) | Input supply | Accepts 2.5–5.5 V; requires local 4.7 µF ceramic capacitor placed adjacent to minimize input ripple and supply impedance. |
| EN (Pin 4) | Enable control | Active-high logic input (1.2 V threshold); must be pulled high via resistor or MCU GPIO; floating not allowed. |
| FB (Pin 5) | Feedback input | Senses divided output voltage; connects to external resistor divider (R1/R2) to set VOUT = 0.6 V × (1 + R1/R2). |
| OUT (Pin 6) | Output voltage sense | Direct connection to regulated output rail; improves load regulation and compensates for PCB trace resistance (no PG function). |
Key Features
| Feature | Design Value |
|---|---|
| Forced PWM operation | Eliminates frequency variation at light loads, ensuring consistent EMI profile and stable transient response without mode transitions. |
| 100% duty-cycle mode | Enables dropout operation down to ΔV = IOUT × (100 mΩ + inductor DCR), supporting applications where input voltage approaches output level. |
| Internal soft-start | 1-ms fixed ramp time prevents inrush current and protects input source during startup into pre-biased outputs. |
| Active output discharge | Discharges output capacitor via internal path when disabled, preventing residual voltage from interfering with downstream logic sequencing. |
| HICCUP short-circuit protection | Shuts down after 32 overcurrent events, then auto-restarts - protects against sustained overload without latch-off or manual reset. |
Applications
| Wireless Router Power Rail | Solid-State Drive Core Supply |
|---|---|
Use Scenario: Powers 1.2 V or 1.8 V SoC core in compact 802.11ac/ax access points with strict thermal and size constraints. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 2 A at 1.2 V from 5 V USB input; operates in forced PWM for clean RF environment. Use Value: SOT-563 footprint saves board area vs larger packages; 2.4 MHz switching allows tiny 1.0 µH inductor and avoids audible noise. |
Use Scenario: Supplies 1.2 V NAND flash controller and DRAM interface in M.2 NVMe SSD modules. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with fast transient response to handle bursty NAND read/write loads. Use Value: <23 µA quiescent current extends sleep-mode battery life; ±1% FB accuracy maintains timing margin for DDR interfaces. |
| Battery-Powered IP Camera | Multi-Function Printer Logic Supply |
Use Scenario: Powers image signal processor and Wi-Fi module in outdoor security cameras using single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Main 1.8 V/2 A supply with forced PWM to avoid interference with video ADC sampling clocks. Use Value: 100% duty-cycle capability sustains regulation as battery discharges below 2.0 V headroom; thermal shutdown at 170°C prevents damage. |
Use Scenario: Generates 1.2 V logic rail for printer SoC and motor control MCU in compact all-in-one devices. IC Role / Device Role / Timing Role: Compact, high-density buck converter replacing discrete solutions; supports rapid wake-from-sleep transitions. Use Value: Internal soft-start prevents brownout during cold start; active discharge clears output before next power cycle to avoid latch-up. |
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 rating and SOT-563 package, but uses PSM/PWM auto-mode (not forced PWM); includes PG pin instead of OUT pin. | Preferred where power-good sequencing is required and light-load efficiency >90% is prioritized over EMI predictability. | Select TPS62A02DRLR if system needs PG assertion and can tolerate variable switching frequency below ~200 mA load. |
| TLV62585DRLR | 1 A rated, pin-to-pin compatible SOT-563 buck; shares identical EN/FB/SW/GND/VIN pinout and 2.4 MHz operation but lower current capability. | Suitable for lower-power subsystems (e.g., camera ISP only) where 2 A headroom is unnecessary and cost optimization is critical. | Choose TLV62585DRLR only when output current demand is ≤1 A and footprint reuse with existing TLV62585 designs is mandatory. |
Compared with TPS62A02DRLR, TPS62A02NADRLR trades power-good signaling for tighter output regulation via OUT pin and deterministic EMI via forced PWM-making it optimal for noise-sensitive, high-current, space-constrained applications where sequencing is handled externally.
Availability
TPS62A02NADRLR is available at Aetrix Electronics and suitable for wireless routers, solid-state drives, battery-powered IP cameras, and multi-function printers requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for TPS62A02NADRLR 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 ICs, with decades of expertise in high-efficiency DC/DC conversion.
The TPS62A0x family was designed for compact, high-efficiency point-of-load regulation in portable and space-constrained electronics-emphasizing thermal performance, low quiescent current, and seamless integration into dense PCB layouts.
FAQ
What is the maximum continuous output current of the TPS62A02NADRLR?
The TPS62A02NADRLR delivers up to 2 A continuous output current in its SOT-563 package. Derating is required at ambient temperatures above 85°C or input voltages below 3.3 V due to thermal limits-verified by EVM testing showing potential thermal shutdown under those conditions.
Does the TPS62A02NADRLR have a power-good (PG) pin?
No, the TPS62A02NADRLR does not include a power-good pin. Instead, Pin 6 is designated as OUT for direct output voltage sensing. This configuration improves regulation accuracy but removes built-in rail-status signaling-systems requiring PG must implement external monitoring or select TPS62A02DRLR.
What is the purpose of the OUT pin on the TPS62A02NADRLR?
The OUT pin (Pin 6) on the TPS62A02NADRLR provides direct connection to the regulated output voltage, enabling improved load regulation by compensating for PCB trace resistance between the IC and load. It replaces the PG pin found on non-"N" variants and is not a functional output driver.
Can the TPS62A02NADRLR operate with input voltage equal to the output voltage?
Yes, the TPS62A02NADRLR supports 100% duty-cycle operation, allowing it to maintain regulation when VIN approaches VOUT. Minimum input is calculated as VIN(MIN) = VOUT + IOUT × (100 mΩ + inductor DCR), enabling ultra-low dropout in battery-depleted scenarios.
Is the TPS62A02NADRLR pin-compatible with the TLV62585DRLR?
Yes, the TPS62A02NADRLR is pin-to-pin compatible with the TLV62585DRLR in the SOT-563 package for Pins 1–5 (GND, SW, VIN, EN, FB). However, Pin 6 differs: TLV62585DRLR uses PG, while TPS62A02NADRLR uses OUT-requiring minor schematic and layout review for replacement.
TPS62A02NADRLR 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
TPS62A02NADRLR FAQ
1.How can I place an order for TPS62A02NADRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62A02NADRLR 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 TPS62A02NADRLR reliable?
The price and inventory of TPS62A02NADRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62A02NADRLR is usually 5 days.
3.What payment methods are accepted for TPS62A02NADRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62A02NADRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62A02NADRLR?
TPS62A02NADRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62A02NADRLR 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 TPS62A02NADRLR?
For technical support, including TPS62A02NADRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62A02NADRLR requirements.
6.How does Aetrix verify that TPS62A02NADRLR is sourced from the original manufacturer or authorized distributors?
All TPS62A02NADRLR 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 TPS62A02NADRLR meets industry standards.
7.What is the process for return or replacement of TPS62A02NADRLR?
All TPS62A02NADRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62A02NADRLR, 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 TPS62A02NADRLR part is unused and in its original packaging.
Return procedure for TPS62A02NADRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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