My Inquiry
My Account
Texas Instruments TPS62933PDRLR
- Part No.:
- TPS62933PDRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS62933PDRLR.pdf
- Description:
- IC REG BUCK ADJ 3A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:3,717
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62933PDRLR from Texas Instruments is a 3.8-V to 30-V input, 3-A synchronous buck converter in an ultra-compact 1.6-mm × 2.1-mm SOT583 package, featuring 12-μA quiescent current, integrated 76-mΩ/32-mΩ MOSFETs, and 0.8-V ±1% reference voltage. It delivers high efficiency across wide load ranges and supports prebiased start-up-ideal for industrial power rails (12 V/24 V) and space-constrained embedded systems.
For engineers reviewing the TPS62933PDRLR datasheet, TPS62933PDRLR pinout, TPS62933PDRLR application, or TPS62933PDRLR equivalent, key selection considerations include its PG pin for power-good monitoring, PFM light-load efficiency mode, 200-kHz–2.2-MHz adjustable switching frequency via RT pin, and operation over –40°C to 150°C junction temperature.
Technical Context
The TPS62933PDRLR employs fixed-frequency peak current control with internal loop compensation-eliminating external compensation components across 0.8-V to 22-V output voltages and 200-kHz to 2.2-MHz switching frequencies. Its architecture integrates high-side and low-side n-channel MOSFETs with cycle-by-cycle overcurrent protection on both devices.
It features a dedicated open-drain PG pin asserting low during output undervoltage, overvoltage, thermal shutdown, EN disable, or soft-start; and supports frequency spread spectrum (±6%) for EMI reduction. The device operates in pulse frequency modulation (PFM) for high light-load efficiency and includes precision enable threshold (1.21–1.28 V) and VIN UVLO (3.4–3.8 V rising).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.8 V to 30 V - supports common industrial bus rails (5 V, 12 V, 19 V, 24 V) without external regulators |
| Output Current | 3 A continuous - sufficient for powering FPGAs, microcontrollers, and interface ICs in compact systems |
| Quiescent Current | 12 μA - enables >10-year battery life in always-on IoT sensors and remote monitors |
| Reference Voltage | 0.8 V ±1% at 25°C - ensures ±1.6% output accuracy over full temperature range with external resistor divider |
| Switching Frequency | 200 kHz to 2.2 MHz (RT-programmable) - balances efficiency, size (inductor/capacitor), and EMI compliance |
| Junction Temp Range | –40°C to 150°C - qualified for under-hood automotive, industrial motor drives, and factory automation |
| Package | SOT583 (8-pin, 1.6 mm × 2.1 mm) - enables <10-mm² solution size with optimized thermal path and EMI-friendly pinout |
Pinout & Package
SOT583 (DRL) package: 8-pin, 0.5-mm pitch, 1.6 mm × 2.1 mm body size, exposed thermal pad (connected to GND internally). Optimized for minimal loop area and low EMI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RT | Frequency programming input | Resistor-to-GND or floating sets switching frequency (500 kHz default, 1.2 MHz with GND tie); enables system-level EMI tuning |
| EN | Enable control input | Active-high logic input with 1.21–1.28 V threshold; internal pullup allows simple resistor-divider UVLO implementation |
| VIN | Main power input | Supplies internal LDO and high-side FET; requires local 10-μF ceramic bypass capacitor directly to GND |
| GND | Power and signal ground | Common return for controller, low-side FET source, CIN/COUT; must be short, low-inductance connection to PCB plane |
| SW | Switch node | Connects to inductor; carries high di/dt; critical for layout-must minimize trace length and loop area |
| BST | Bootstrap supply | Requires 100-nF ceramic capacitor to SW; enables high-side gate drive without external charge pump |
| PG | Power-good indicator | Open-drain output pulled low if VOUT < 85% or > 115% of setpoint, or during fault conditions (thermal, EN off, soft-start) |
| FB | Feedback input | Connects to resistor divider from VOUT; sets regulated output voltage per VREF × (1 + RFBT/RFBB) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 76-mΩ high-side + 32-mΩ low-side MOSFETs - eliminates external discrete FETs and drivers, reducing BOM count and layout complexity |
| PG Pin Functionality | Dedicated open-drain power-good output - provides system-level sequencing and fault detection without external comparators or supervisors |
| Ultra-Low IQ Mode | 12 μA quiescent current - extends battery runtime in always-on applications such as smart meters and wireless sensors |
| Prebiased Start-Up | Safe monotonic ramp into precharged output - prevents reverse current flow and avoids system reset during hot-swap or backup rail transitions |
| Spread Spectrum | ±6% frequency modulation - reduces peak EMI emissions by spreading energy across bandwidth, easing EMC certification |
Applications
| Industrial Motor Drives | Smart Building Sensors |
|---|---|
Use Scenario: Powering gate drivers and isolated ADCs in compact servo inverters operating from 24-V DC bus. IC Role / Device Role / Timing Role: Primary 3.3-V/5-V point-of-load regulator delivering 3-A peak current with fast transient response to PWM-driven loads. Use Value: Integrated MOSFETs and internal compensation reduce solution size by >30% vs discrete controllers; 150°C rating enables placement near heat sources. | Use Scenario: Supplying ultra-low-power MCU, BLE radio, and environmental sensors in battery-operated HVAC nodes. IC Role / Device Role / Timing Role: Main system regulator enabling deep-sleep modes with 12-μA IQ and reliable wake-up via EN-controlled sequencing. Use Value: PG pin confirms stable rail before firmware initialization; prebias start-up prevents brownout during battery swap or backup switchover. |
| Enterprise Projectors | Distributed Telecom Power |
Use Scenario: Generating 1.2-V core voltage for image processing SoCs and 3.3-V for display interface ICs from 12-V or 19-V input. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter supporting dynamic load steps up to 2 A/μs with minimal output droop. Use Value: Peak-current control and internal compensation ensure <50-μs recovery from 80% load transients; SOT583 footprint fits tight optical engine layouts. | Use Scenario: Local regulation of 5-V or 12-V rails in modular base station units powered from 48-V intermediate bus. IC Role / Device Role / Timing Role: Secondary buck stage providing isolated, sequenced, and monitored power domains for FPGA I/O banks and SerDes supplies. Use Value: PG output feeds back to system manager for real-time health monitoring; spread spectrum meets EN55032 Class B conducted/radiated limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62933P | Same PG pin, identical electrical specs, but no SS pin - uses fixed 2-ms soft-start time instead of adjustable external capacitor | Preferred where deterministic soft-start timing is required and board space prohibits adding SS capacitor | Select TPS62933P when consistent startup behavior is prioritized over programmability; same pinout and layout compatibility |
| TPS62933O | Replaces PG with OOA (out-of-audio) mode; same 3-A rating and 12-μA IQ, but lacks power-good reporting | Used in audio-sensitive environments (e.g., smart speakers) where audible switching noise must be eliminated | Choose TPS62933O only when audible noise is a primary concern and PG functionality is not needed |
Compared with TPS62933PDRLR, TPS62933P offers identical monitoring capability with fixed soft-start timing, while TPS62933O trades PG for out-of-audio operation-making TPS62933PDRLR the optimal choice when both power-good signaling and adjustable soft-start are required.
Availability
TPS62933PDRLR is available at Aetrix Electronics and suitable for industrial motor drives, smart building sensors, enterprise projectors, and distributed telecom power systems requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for TPS62933PDRLR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and communications markets.
The TPS6293x product line was designed to deliver high-efficiency, small-footprint DC/DC conversion for space- and thermal-constrained applications-emphasizing integration, ease of use, and robust protection across wide input voltage ranges.
FAQ
What is the maximum continuous output current of the TPS62933PDRLR?
The TPS62933PDRLR supports 3-A continuous output current across its full operating temperature range (–40°C to 150°C junction), verified under recommended conditions with proper PCB thermal design and adequate input/output capacitance. This rating applies to all output voltages between 0.8 V and 22 V, assuming adequate heatsinking via the exposed thermal pad.
Does the TPS62933PDRLR support adjustable soft-start time?
No-the TPS62933PDRLR does not support adjustable soft-start. It uses a fixed 2-ms internal soft-start time, unlike the SS-pin variants (e.g., TPS62933). This is confirmed by TI's device comparison table and pin function documentation, which assign the Pin 7 function exclusively to PG (power-good) for this part number.
What protection features are included in the TPS62933PDRLR?
The TPS62933PDRLR includes non-latched overvoltage (OVP), undervoltage (UVP), overcurrent (OCP), overtemperature (OTP), and input undervoltage lockout (UVLO) protections. It also implements cycle-by-cycle current limiting on both high-side and low-side MOSFETs, and safe prebiased start-up to prevent reverse current flow during power-up.
Can the TPS62933PDRLR operate with a 3.3-V input voltage?
No-the minimum recommended input voltage for the TPS62933PDRLR is 3.8 V. Operation below 3.8 V violates the Recommended Operating Conditions and may result in unstable regulation or failure to start. The absolute maximum rating allows down to –0.3 V, but functional operation is not guaranteed below 3.8 V.
How is the switching frequency configured on the TPS62933PDRLR?
The switching frequency of the TPS62933PDRLR is set via the RT pin: floating for ~500 kHz, tied to GND for ~1.2 MHz, or connected to a resistor for intermediate values (e.g., 71.5 kΩ → 310 kHz, 9.09 kΩ → 2.1 MHz). This configuration is fully supported in the datasheet's Electrical Characteristics and Typical Characteristics sections.
TPS62933PDRLR 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:
- 3A
- 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
TPS62933PDRLR FAQ
1.How can I place an order for TPS62933PDRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62933PDRLR 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 TPS62933PDRLR reliable?
The price and inventory of TPS62933PDRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62933PDRLR is usually 5 days.
3.What payment methods are accepted for TPS62933PDRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62933PDRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62933PDRLR?
TPS62933PDRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62933PDRLR 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 TPS62933PDRLR?
For technical support, including TPS62933PDRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62933PDRLR requirements.
6.How does Aetrix verify that TPS62933PDRLR is sourced from the original manufacturer or authorized distributors?
All TPS62933PDRLR 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 TPS62933PDRLR meets industry standards.
7.What is the process for return or replacement of TPS62933PDRLR?
All TPS62933PDRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62933PDRLR, 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 TPS62933PDRLR part is unused and in its original packaging.
Return procedure for TPS62933PDRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62933PDRLR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
