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Texas Instruments TPS61033QDRLRQ1
- Part No.:
- TPS61033QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS61033QDRLRQ1.pdf
- Description:
- IC REG BOOST ADJ SOT583
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS61033QDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified synchronous boost converter for automotive and portable power applications, delivering up to 5.5-A valley switch current limit, 2.4-MHz fixed-frequency operation, and adjustable 2.2–5.5-V output voltage with output discharge function. It integrates dual 25-mΩ/46-mΩ MOSFETs, achieves 93.42% efficiency at 3.3-V input/5-V output/1-A load, and supports pass-through mode when VIN > VOUT.
For engineers reviewing the TPS61033QDRLRQ1 datasheet, TPS61033QDRLRQ1 pinout, TPS61033QDRLRQ1 application, or TPS61033QDRLRQ1 equivalent, key selection criteria include its 20-μA quiescent current into VIN, ±1.5% reference accuracy over –40°C to +125°C, integrated power-good indicator with window comparator, spread-spectrum EMI reduction, and true input-output disconnection during shutdown.
Technical Context
The TPS61033QDRLRQ1 employs adaptive constant-on-time valley-current-mode control to maintain tight line and load regulation across 1.8–5.5-V input and 2.2–5.5-V output ranges. Its internal loop compensation eliminates external compensation components, enabling stable operation with small 0.47-μH inductors and ceramic capacitors.
It offers two light-load operating modes via the MODE pin: auto PFM for peak efficiency (e.g., 5.3-μA quiescent current into VOUT) and forced PWM for low-noise, fixed-frequency performance. Output discharge is implemented using the open-drain PG pin with an external dummy resistor, while safety features include 5.75-V output overvoltage protection, thermal shutdown at 170°C, and short-circuit protection limiting output current to ~330 mA under VOUT < 0.4 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion, Li-polymer, or multi-cell alkaline/NiMH battery inputs without pre-regulation |
| Output Voltage Range | 2.2 V to 5.5 V - adjustable via external resistor divider; fixed 5.0 V when FB tied to VIN |
| Valley Switch Current Limit | 5.5 A (typical) - enables high-power boost for USB PD, display bias, or audio amplifiers |
| Switching Frequency | 2.4 MHz (typical) - allows use of sub-1-μH inductors and compact 0402/0603 ceramic capacitors |
| Quiescent Current (VIN) | 20 μA (typical) - extends battery runtime in always-on or low-duty-cycle systems |
| Reference Voltage Accuracy | ±1.5% over –40°C to +125°C - ensures stable output regulation across automotive temperature range |
| PGOOD Threshold Window | 93% to 107% of VOUT setting - provides reliable power sequencing and fault detection |
| Shutdown Current | 0.1 μA (typical) - enables true zero-leakage disable for long-term storage or ultra-low-power wake-up circuits |
Pinout & Package
TPS61033QDRLRQ1 is housed in a thermally enhanced 2.1-mm × 1.6-mm SOT-5X3 (8-pin) package, also designated DRL, with exposed thermal pad for improved power dissipation in space-constrained automotive and portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Main supply input (1.8–5.5 V); connects to battery or intermediate rail; includes 1.7-V UVLO with 100-mV hysteresis |
| EN | Digital Enable Input | Active-high logic control (1.2-V threshold); internal 10-MΩ pull-down; disables IC and disconnects input from output in shutdown |
| MODE | Light-Load Mode Select | Logic-high = forced PWM (low-noise, fixed frequency); logic-low = auto PFM (high efficiency at light load); internal 1-MΩ pull-down |
| PG | Open-Drain Power-Good Output | Indicates VOUT within 93–107% of target; 1.3-ms turn-on delay; 33-μs glitch filter; supports output discharge via external RDummy resistor |
| FB | Voltage Feedback Input | Senses output via external resistor divider; internal 600-mV reference; tied to VIN for fixed 5-V operation |
| GND | Power Ground | Primary return path for power switches and control circuitry; must be connected to low-impedance PCB ground plane |
| SW | Switch Node | Connection point between internal HS and LS MOSFETs; drives external inductor; requires low-inductance layout to minimize EMI |
| VOUT | Boost Output | Regulated output (2.2–5.5 V); supplies downstream loads; includes OVP (5.75 V), short-circuit, and thermal protection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - suitable for under-hood and infotainment applications without derating |
| Integrated output discharge via PG pin | Enables controlled VOUT ramp-down on disable using only one external resistor - eliminates need for dedicated discharge FET or controller |
| Spread-spectrum frequency modulation | ±6% triangular dither at 11 kHz - reduces peak EMI by spreading energy across 2.26–2.54 MHz band, easing EMC compliance |
| True input-output disconnection in shutdown | Zero current path between VIN and VOUT - prevents backfeed, leakage, or unintended powering of downstream circuits |
| Adaptive constant-on-time valley-current control | No external compensation required - maintains stability with 0.33–1.3-μH inductors and wide capacitor ESR ranges |
| Pass-through mode | Automatic HS-FET conduction when VIN > VOUT - bypasses switching losses to maximize efficiency in high-input scenarios |
Applications
| Automotive Infotainment Displays | Portable Medical Monitors |
|---|---|
Use Scenario: Powering 5-V LCD bias rails and touch controller supplies in dashboard displays and rear-seat entertainment units. IC Role / Device Role / Timing Role: Primary synchronous boost regulator delivering regulated 5-V output from 3.3-V or 4.2-V battery sources with fast transient response. Use Value: 93.42% efficiency at 1-A load and 20-μA quiescent current extend display runtime; AEC-Q100 Grade 1 ensures reliability across vehicle thermal cycles. | Use Scenario: Generating stable 5-V supply for microcontroller peripherals, sensors, and wireless transceivers in handheld diagnostic devices. IC Role / Device Role / Timing Role: High-efficiency, low-noise power source supporting battery-powered operation with strict standby current budgets. Use Value: Auto PFM mode delivers 5.3-μA quiescent current into VOUT; output discharge via PG pin ensures safe power-down sequencing per IEC 62304 requirements. |
| Smart Speaker Audio Amplifiers | Mobile Point-of-Sale Terminals |
Use Scenario: Providing 5-V rail to Class-D audio amplifiers requiring clean, ripple-free supply with minimal EMI impact on sensitive analog audio paths. IC Role / Device Role / Timing Role: Low-noise boost converter operating in forced PWM mode to suppress audible switching artifacts. Use Value: Spread-spectrum modulation reduces conducted EMI peaks; 2.4-MHz operation moves noise above audio band; ±1.5% reference ensures consistent amplifier gain calibration. | Use Scenario: Supplying 5-V power to EMV contactless readers, barcode scanners, and secure element ICs in compact handheld payment terminals. IC Role / Device Role / Timing Role: Compact, robust boost solution meeting stringent automotive-grade reliability and fast startup requirements. Use Value: Soft-start with 330-mA pre-charge current prevents inrush-induced brownouts; power-good signal enables secure boot sequencing and tamper-detection logic activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61032QDRCRQ1 | Same SOT-5X3 package and pinout; lower 3-A valley current limit; no spread-spectrum modulation | Better suited for lower-power applications where EMI is less critical and peak current demand ≤3 A | Select TPS61032QDRCRQ1 when system load current stays below 3 A and spread-spectrum is unnecessary |
| MAX20420BATG/V+T | 2.2-MHz switching; 5-A peak current; integrated input OVP; different 12-pin TDFN package and pin assignment | Offers higher input voltage tolerance (up to 28 V) and input overvoltage protection - ideal for industrial or mixed-rail environments | Choose MAX20420BATG/V+T when input can exceed 5.5 V or input-side surge protection is required |
Compared with TPS61032QDRCRQ1, the TPS61033QDRLRQ1 delivers 83% higher valley current capability and built-in EMI reduction, while MAX20420BATG/V+T trades pin compatibility for wider input range and input-side protection - making TPS61033QDRLRQ1 optimal for space-constrained, high-current automotive boost needs.
Availability
TPS61033QDRLRQ1 is available at Aetrix Electronics and suitable for automotive infotainment displays, portable medical monitors, and smart speaker audio amplifiers requiring stable component supply, AEC-Q100 compliance, and high-efficiency boost conversion.
Supply support for TPS61033QDRLRQ1 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 automotive, industrial, and consumer markets.
The TPS61033-Q1 product line delivers fully-integrated, high-current synchronous boost converters optimized for AEC-Q100 Grade 1 automotive applications including infotainment, ADAS displays, and telematics modules where reliability, efficiency, and compact size are critical.
FAQ
What is the maximum continuous output current supported by the TPS61033QDRLRQ1?
The TPS61033QDRLRQ1 supports a typical valley switch current limit of 5.5 A, enabling continuous output currents up to approximately 2.5 A at 5-V output depending on input voltage, inductor value, and thermal design. At 3.3-V input and 5-V output, it delivers up to 2 A with 90.78% efficiency. The actual maximum output current is constrained by thermal limits and inductor saturation, not solely by the valley current threshold.
How does the TPS61033QDRLRQ1 implement output discharge, and what external component is required?
The TPS61033QDRLRQ1 implements output discharge using its open-drain PG pin: when EN is pulled low, PG transitions low after a 33-μs glitch time, activating an external RDummy resistor connected between PG and VOUT. This resistor acts as a controlled dummy load to discharge the output capacitor. Typical RDummy values range from 10 Ω to 100 Ω, selected based on desired discharge rate and PG's 50-mA sink capability.
Does the TPS61033QDRLRQ1 support fixed 5-V output without external resistors?
Yes, the TPS61033QDRLRQ1 supports fixed 5-V output by connecting the FB pin directly to VIN. In this configuration, the device uses its internal resistor divider and 600-mV reference to regulate VOUT to 5.0 V ±1.5% over temperature. No external feedback resistors are needed, simplifying BOM and layout for standard 5-V rail generation.
What protection features are integrated into the TPS61033QDRLRQ1?
The TPS61033QDRLRQ1 integrates output overvoltage protection (5.75-V trip), thermal shutdown (170°C trip, 155°C recovery), output short-circuit protection (limits current to ~330 mA when VOUT < 0.4 V), undervoltage lockout (1.7-V enable threshold), and true input-output disconnection during shutdown. All protections are fully autonomous and require no external components.
Can the TPS61033QDRLRQ1 operate with input voltage higher than the regulated output voltage?
Yes, the TPS61033QDRLRQ1 enters pass-through mode when VIN exceeds the regulated VOUT by >1%. In this mode, the high-side PMOS FET turns fully on, allowing current to flow directly from VIN to VOUT with only inductor DCR and RDS(on) losses. Output voltage equals VIN minus these drops, and switching ceases until VOUT falls below 97% of the target, at which point regulation resumes.
TPS61033QDRLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-583
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- -
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS61033QDRLRQ1 FAQ
1.How can I place an order for TPS61033QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61033QDRLRQ1 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 TPS61033QDRLRQ1 reliable?
The price and inventory of TPS61033QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61033QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61033QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61033QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61033QDRLRQ1?
TPS61033QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61033QDRLRQ1 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 TPS61033QDRLRQ1?
For technical support, including TPS61033QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61033QDRLRQ1 requirements.
6.How does Aetrix verify that TPS61033QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61033QDRLRQ1 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 TPS61033QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61033QDRLRQ1?
All TPS61033QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61033QDRLRQ1, 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 TPS61033QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS61033QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61033QDRLRQ1 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
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