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Texas Instruments TPS62932DRLR
- Part No.:
- TPS62932DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS62932DRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:7,322
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Product details
Overview
TPS62932DRLR from Texas Instruments is a 3.8-V to 30-V input, 2-A synchronous buck converter in an 8-pin SOT583 package, featuring ultra-low 12-μA quiescent current, integrated 76-mΩ/32-mΩ MOSFETs, 0.8-V ±1% reference, and peak-current-mode control for fast transient response - deployed in industrial PCs and smart speakers requiring high efficiency at light loads.
For engineers reviewing the TPS62932DRLR datasheet, TPS62932DRLR pinout, TPS62932DRLR application, or TPS62932DRLR equivalent, key selection considerations include its PFM operation mode, adjustable soft-start via SS pin, 200-kHz–2.2-MHz frequency programming, EMI-friendly spread spectrum, and prebias start-up capability in space-constrained 1.6-mm × 2.1-mm layouts.
Technical Context
The TPS62932DRLR uses fixed-frequency peak-current-mode control with internal compensation, eliminating external loop components across 0.8-V–22-V output ranges and 200-kHz–2.2-MHz switching frequencies. Its architecture supports monotonic start-up into prebiased outputs and cycle-by-cycle overcurrent protection on both high-side and low-side MOSFETs.
It operates in pulse frequency modulation (PFM) for high light-load efficiency, features precision enable threshold (1.21–1.28 V), and integrates frequency spread spectrum to reduce EMI emissions - all while maintaining full protection suite including OTP, OCP, OVP, UVP, and UVLO with non-latched behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 3.8 V to 30 V - supports direct regulation from common industrial rails (5 V, 12 V, 19 V, 24 V) |
| Output current | 2 A continuous - sufficient for powering FPGA I/O banks, microcontroller cores, or display logic |
| Quiescent current | 12 μA typical - enables >10-year battery life in always-on IoT sensor nodes |
| Reference voltage | 0.8 V ±1% at 25°C - ensures ±1.6% output accuracy over temperature with standard resistor dividers |
| Switching frequency | 200 kHz to 2.2 MHz - selectable via RT pin for optimal trade-off between efficiency, size, and EMI |
| MOSFET RDS(on) | 76 mΩ (HS), 32 mΩ (LS) - enables >90% efficiency at 12-VIN/3.3-VOUT, 2-A load |
| Operating junction temp | –40°C to +150°C - qualified for under-hood automotive and industrial ambient environments |
Pinout & Package
TPS62932DRLR is housed in an 8-pin SOT583 package (1.6 mm × 2.1 mm, 0.5-mm pitch), optimized for compact layout and EMI performance with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RT | Frequency programming input | Float = 500 kHz; tie to GND = 1.2 MHz; resistor sets precise frequency - enables EMI tuning and inductor size optimization |
| EN | Enable control input | Active-high with 1.21–1.28 V threshold; internal pullup allows simple resistor-divider VIN UVLO implementation |
| VIN | Main power input | Supplies internal LDO and high-side FET; requires local 10-μF ceramic bypass directly to GND |
| GND | Power and signal ground | Common return for controller, low-side FET source, CIN, and COUT; shortest possible path to CIN critical for stability |
| SW | Switch node | Connects to inductor; carries high di/dt - must be short, wide, and isolated from sensitive analog traces |
| BST | Bootstrap supply | Requires 100-nF ceramic capacitor to SW; enables high-side gate drive without external charge pump |
| SS | Soft-start timing | External capacitor sets rise time of internal reference; ≥6.8 nF yields ~1-ms minimum soft-start |
| FB | Feedback input | Connects to resistor divider from VOUT; regulates output by comparing to 0.8-V internal reference |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates external Type-II/III compensation network - reduces BOM count and layout sensitivity across 0.8–22 V outputs |
| Spread spectrum | Reduces peak EMI by ±6% frequency modulation - meets CISPR-32 Class B without added shielding or filters |
| Prebias start-up | Safe ramp-up into existing output voltage - prevents reverse current flow in hot-swap or redundant power systems |
| Non-latched protections | Auto-recovery from overtemperature, overcurrent, overvoltage, undervoltage, and UVLO - avoids system lockup during transients |
| Maximum duty cycle | 98% - supports high step-down ratios (e.g., 24 V → 3.3 V) without dropout at high load |
Applications
| Industrial PC Power Rails | Smart Speaker Audio Subsystem |
|---|---|
Use Scenario: Regulating 12-V bus to 3.3-V/1.8-V for SoC I/O, USB PHY, and Ethernet MAC in fanless industrial PCs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering clean, stable DC power with fast load-step response. Use Value: 12-μA quiescent current extends runtime in battery-backed operation; 150°C junction rating ensures reliability in sealed enclosures. | Use Scenario: Supplying DSP, codec, and Wi-Fi module in voice-controlled smart speakers powered from 19-V wall adapter. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter operating in PFM mode during standby listening. Use Value: Ultra-low IQ preserves battery backup during voice wake-word detection; spread spectrum minimizes audible noise coupling into audio path. |
| Building Automation Sensors | Portable Medical Monitors |
Use Scenario: Powering wireless Zigbee/BLE sensor nodes in HVAC controllers with 24-V building power infrastructure. IC Role / Device Role / Timing Role: Main DC-DC converter enabling long-life operation from primary or backup batteries. Use Value: 2-A capability supports future firmware upgrades with higher-power radios; -40°C to 150°C rating covers unconditioned attic installations. | Use Scenario: Generating 5-V and 3.3-V rails for LCD, touch controller, and patient interface in handheld vital sign monitors. IC Role / Device Role / Timing Role: Compact, reliable buck converter meeting IEC 60601-1 creepage/clearance requirements via small SOT583 footprint. Use Value: Prebias start-up prevents brownout during hot-swap battery replacement; non-latched OCP avoids clinical alarm false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62933DRLR | 3-A output current; identical pinout and feature set except higher current limit and MOSFET RDS(on) | Required where peak load exceeds 2 A (e.g., multi-core processors or high-brightness displays) | Select when design headroom demands >2 A continuous current; same PCB layout applies |
| LM61480RQRR | 3.5-A rating, 3.5-V–36-V input, 15-μA IQ, but no spread spectrum or SS pin - uses external compensation | Suitable for cost-sensitive designs where EMI filtering is handled externally and layout area permits larger solution | Choose if higher current and wider input range outweigh loss of integrated soft-start and EMI reduction features |
Compared with TPS62933DRLR, the TPS62932DRLR offers lower cost and thermal margin for ≤2-A loads; versus LM61480RQRR, it delivers superior light-load efficiency, smaller total solution size, and built-in EMI mitigation - critical for space- and noise-constrained portable medical and audio devices.
Availability
TPS62932DRLR is available at Aetrix Electronics and suitable for industrial PCs, smart speakers, building automation sensors, and portable medical monitors requiring stable component supply, long-term manufacturability, and guaranteed traceable sourcing.
Supply support for TPS62932DRLR 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-reliability power conversion solutions.
The TPS6293x product line was designed specifically for space-constrained, high-efficiency industrial and consumer applications demanding ultra-low IQ, wide input range, and robust protection - targeting distributed power architectures on 5-V, 12-V, 19-V, and 24-V buses.
FAQ
What is the maximum output current supported by the TPS62932DRLR?
The TPS62932DRLR supports up to 2 A of continuous output current, as confirmed by TI's datasheet Section 8.3 Recommended Operating Conditions and Figure 8-13 showing high-side current limit of 3.4 A typical across temperature. This rating assumes proper PCB thermal design per the 19.3°C/W RθJB specification.
Does the TPS62932DRLR support start-up into a prebiased output?
Yes, the TPS62932DRLR supports safe monotonic start-up into prebiased outputs, as explicitly stated in Section 9.1 Overview and Section 10.1 Application Information of the datasheet. This prevents reverse current flow and ensures controlled voltage ramp-up when VOUT is already present at power-on.
How is switching frequency configured on the TPS62932DRLR?
Switching frequency on the TPS62932DRLR is configured via the RT pin: floating for ~500 kHz, tied to GND for ~1.2 MHz, or connected to a resistor for precise values between 200 kHz and 2.2 MHz. This is documented in Table 7-1 Pin Functions and Section 9.3.5 Frequency Programming.
What protection features does the TPS62932DRLR include?
The TPS62932DRLR includes non-latched overtemperature (OTP), overcurrent (OCP), overvoltage (OVP), undervoltage (UVP), and input UVLO protections - all auto-recovering without requiring device reset. These are detailed in Section 8.5 Electrical Characteristics and Section 9.4 Device Functional Modes.
Is spread spectrum enabled by default on the TPS62932DRLR?
Yes, spread spectrum is enabled by default on the TPS62932DRLR and cannot be disabled. It operates with ±6% frequency modulation at fSW/128, as specified in Section 8.5 Electrical Characteristics and confirmed in Section 9.3.10 Spread Spectrum Operation.
TPS62932DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-583
- 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):
- 3.8V
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 22V
- Current - Output:
- 2A
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS62932DRLR FAQ
1.How can I place an order for TPS62932DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62932DRLR 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 TPS62932DRLR reliable?
The price and inventory of TPS62932DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62932DRLR is usually 5 days.
3.What payment methods are accepted for TPS62932DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62932DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62932DRLR?
TPS62932DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62932DRLR 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 TPS62932DRLR?
For technical support, including TPS62932DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62932DRLR requirements.
6.How does Aetrix verify that TPS62932DRLR is sourced from the original manufacturer or authorized distributors?
All TPS62932DRLR 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 TPS62932DRLR meets industry standards.
7.What is the process for return or replacement of TPS62932DRLR?
All TPS62932DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62932DRLR, 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 TPS62932DRLR part is unused and in its original packaging.
Return procedure for TPS62932DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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