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Texas Instruments TPS62153AQRGTTQ1
- Part No.:
- TPS62153AQRGTTQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62153AQRGTTQ1.pdf
- Description:
- IC REG BUCK 5V 1A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:329
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Product details
Overview
TPS62153AQRGTTQ1 from Texas Instruments is an automotive-grade, 3-V to 17-V input, 5-V fixed-output synchronous step-down DC-DC converter delivering up to 1 A continuous current with DCS-Control™ topology, 1.25 MHz/2.5 MHz selectable switching frequency, and integrated power-good output - used in ADAS camera power rails and infotainment USB/CAN supplies.
For engineers reviewing the TPS62153AQRGTTQ1 datasheet, TPS62153AQRGTTQ1 pinout, TPS62153AQRGTTQ1 application, or TPS62153AQRGTTQ1 equivalent, key selection considerations include its AEC-Q100 Grade 1 qualification (–40°C to 125°C), 5-V fixed output with ±5% margining via DEF pin, seamless PWM-to-Power-Save mode transition, and VQFN-16 (3 mm × 3 mm) thermal pad package.
Technical Context
The TPS62153AQRGTTQ1 implements DCS-Control™ topology, combining fast transient response via direct output-voltage sensing with stable DC regulation through an internal voltage feedback loop - enabling high accuracy (±1.8% in PWM mode) and low output ripple without external compensation. Its dual-mode operation uses constant-frequency PWM at medium/heavy loads and variable-frequency Power Save Mode at light loads, maintaining >85% efficiency down to 1 mA.
It integrates a 100% duty-cycle mode for ultra-low dropout (VIN as low as VOUT + IOUT × RDS(on)_HS + IOUT × RL), programmable soft-start/tracking via SS/TR pin, and robust protection including overtemperature shutdown (160°C), short-circuit limiting (1.4–2.2 A typical), and undervoltage lockout (2.7 V nominal with 200 mV hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports wide automotive battery and intermediate bus rails including cold-crank (≥3 V) and load-dump (≤17 V) conditions. |
| Output Voltage | Fixed 5 V ±1.8% (PWM mode) - eliminates external resistor divider; DEF pin enables +5% margining (5.25 V) for hardware tolerance testing. |
| Max Output Current | 1 A continuous - sustained across full temperature range (–40°C to 125°C) with proper PCB thermal design (RθJB = 17.4°C/W). |
| Switching Frequency | Selectable: 1.25 MHz (FSW = High) or 2.5 MHz (FSW = Low) - trade-off between efficiency (higher at 1.25 MHz) and solution size (smaller inductors/caps at 2.5 MHz). |
| Quiescent Current | 17 µA typical - enables always-on subsystems (e.g., CAN wake-up receivers) with minimal battery drain. |
| Power Good Output | Open-drain PG pin with 92–98% rising threshold - provides reliable rail sequencing signal for microcontrollers and FPGAs without external logic. |
| Thermal Protection | 160°C junction shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
TPS62153AQRGTTQ1 is housed in a thermally enhanced 16-pin VQFN package (RGT), 3.00 mm × 3.00 mm body size, with exposed thermal pad soldered to AGND/PGND for optimal power dissipation (RθJC(bot) = 4.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (11,12) | Power-stage input supply | Connects directly to high-current input source; separate from AVIN to reduce noise coupling into control circuitry. |
| AVIN (10) | Analog control supply | Provides clean bias for internal regulators and error amplifier; must tie to same source as PVIN but routed separately. |
| EN (13) | Enable input | Active-high logic (0.65 V threshold); internal 400 kΩ pulldown ensures safe default-off state if left floating. |
| SS/TR (9) | Soft-start / tracking input | External capacitor sets startup ramp time; voltage applied here enables precise power-rail tracking with master supplies. |
| FSW (7) | Frequency select | Low = 2.5 MHz (high density), High = 1.25 MHz (higher efficiency); internal pulldown defaults to 2.5 MHz. |
| DEF (8) | Output voltage scaling | Low = 5 V nominal, High = 5.25 V (+5%); internal pulldown ensures default 5 V if unconnected. |
| SW (1–3) | Switch node | High-current connection to external inductor; requires low-inductance layout to minimize EMI and switching losses. |
| PG (4) | Power good open-drain output | Sinks 2 mA; requires external pullup to ≤7 V (e.g., VOUT); asserts low during UVLO, thermal shutdown, or EN = low. |
| VOS (14) | Output voltage sense | Direct connection to output capacitor for accurate regulation; improves loop stability vs. remote FB sensing. |
| FB (5) | Feedback input | Internally connected to fixed 5-V reference; recommended to tie to AGND on fixed-output variants for thermal performance. |
| AGND (6) | Analog ground | Must connect directly to exposed thermal pad and system AGND plane; separates analog reference from power return paths. |
| PGND (15,16) | Power ground | High-current return for MOSFETs and inductor; tied to thermal pad and AGND at single point to avoid ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10 µs load transient response with <1% output deviation using only ceramic output capacitors - no external compensation required. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C junction operation, HBM ESD ±2 kV, CDM ESD ±500 V - suitable for under-hood and safety-critical ADAS modules. |
| Seamless Power Save Mode | Automatically transitions from PWM to variable-frequency PSM below ~150 mA load - maintains >85% efficiency from 1 mA to 1 A without audible switching noise. |
| 100% duty-cycle operation | Extends battery runtime by regulating down to VIN = VOUT + IOUT × (RDS(on)_HS + RL) - supports 5-V output from 5.3-V input at 1 A. |
| Integrated power-good signaling | Eliminates need for external supervisor IC; PG pin drives FPGA reset or MCU enable with precise 95% ±3% threshold and fast rise/fall times. |
| Functional safety documentation support | TI provides FIT rate data, failure mode analysis, and diagnostic coverage reports - accelerates ISO 26262 ASIL-B system certification. |
Applications
| ADAS Camera Module | Infotainment USB Power Supply |
|---|---|
Use Scenario: Powers image sensor and ISP in rear-view or surround-view cameras requiring stable 5-V rail under engine cranking (4.5–16 V battery). IC Role / Device Role / Timing Role: Primary 5-V buck regulator with fast transient response to handle burst-mode sensor readouts and low quiescent current for parking-mode operation. Use Value: DCS-Control™ delivers <50 mV output deviation during 100 mA–1 A load steps; 17 µA IQ extends parking surveillance battery life. |
Use Scenario: Supplies 5-V USB host port in head unit or center display, supporting hot-plug detection and charging negotiation. IC Role / Device Role / Timing Role: Fixed 5-V power source with PG signal synchronized to USB enumeration timing and DEF pin enabling voltage margining for compliance testing. Use Value: PG assertion within 100 µs of VOUT reaching 95% enables precise USB PHY reset sequencing; 5% margining validates USB spec tolerance (4.75–5.25 V). |
| Car Access RF Transceiver | Automotive Lighting Control Unit |
Use Scenario: Powers UWB or BLE transceiver in key fob or door handle module, operating from 12-V vehicle bus with strict EMI limits. IC Role / Device Role / Timing Role: Compact 5-V supply with 2.5 MHz switching to minimize filter size and conducted emissions in narrow PCB space. Use Value: 3 mm × 3 mm VQFN package fits tight mechanical envelopes; 2.5 MHz operation allows 2.2 µH inductor and 22 µF ceramic output cap - reducing BOM count by 3 components vs. 500 kHz designs. |
Use Scenario: Supplies 5-V logic for LED driver ICs and CAN transceivers in adaptive front-lighting systems (AFS), surviving load-dump events. IC Role / Device Role / Timing Role: Robust 5-V regulator with 17-V absolute max input rating and thermal shutdown protecting against lamp short-circuit faults. Use Value: Withstands 17-V load dump per ISO 7637-2 Pulse 5a; 160°C thermal shutdown prevents latch-up during LED string overcurrent conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62152AQRGTTQ1 | Fixed 3.3-V output; identical pinout, package, and feature set except output voltage and marking. | Used where 3.3-V logic rails (e.g., MCU cores, CAN transceivers) replace 5-V peripherals. | Select when system requires 3.3 V instead of 5 V - no layout change needed; only update BOM and test margining. |
| TPS62130AQRGTTQ1 | Lower input range (3–6 V), lower max current (1.2 A), no DEF/FSW pins, and no functional safety documentation. | Targeted at 5-V USB-powered accessories or low-voltage industrial sensors - not qualified for 12-V automotive bus. | Choose only for non-automotive 5-V applications with stable input; lacks AEC-Q100 Grade 1 and load-dump immunity. |
Compared with TPS62153AQRGTTQ1, the TPS62152AQRGTTQ1 offers identical automotive reliability and layout compatibility but targets 3.3-V systems, while the TPS62130AQRGTTQ1 sacrifices automotive qualification and flexibility for cost-sensitive, low-input-voltage use cases - making TPS62153AQRGTTQ1 the optimal choice for 5-V automotive power rails demanding functional safety and wide VIN support.
Availability
TPS62153AQRGTTQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment USB power supplies, and automotive lighting control units requiring stable component supply with AEC-Q100 compliance and long-term automotive lifecycle support.
Supply support for TPS62153AQRGTTQ1 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 designing analog and embedded processing chips for automotive, industrial, and personal electronics markets, with over 90 years of innovation in power management ICs.
The TPS6215xA-Q1 product line delivers high-efficiency, small-footprint DC-DC converters optimized for automotive ADAS, infotainment, and body electronics - emphasizing AEC-Q100 qualification, functional safety readiness, and DCS-Control™ transient performance.
FAQ
What is the output voltage configuration of the TPS62153AQRGTTQ1?
The TPS62153AQRGTTQ1 is a fixed 5-V output converter, with no external feedback resistors required. Its output voltage is factory-set and verified across temperature and load; the DEF pin allows dynamic +5% margining (to 5.25 V) for system-level validation testing without hardware changes. This differs from the adjustable TPS62150A-Q1 and 3.3-V TPS62152A-Q1 in the same family.
Does the TPS62153AQRGTTQ1 support 100% duty-cycle operation, and what is its minimum input voltage?
Yes, the TPS62153AQRGTTQ1 supports 100% duty-cycle operation to maintain regulation when input voltage approaches output voltage. Minimum input for regulation depends on load: at 1 A, VIN(min) ≈ 5 V + 1 A × (RDS(on)_HS + RL). With typical RDS(on)_HS = 90 mΩ and 20 mΩ inductor DCR, VIN(min) ≈ 5.11 V - enabling extended battery runtime in start-stop systems.
How does the power-good (PG) pin of the TPS62153AQRGTTQ1 behave during fault conditions?
The PG pin of the TPS62153AQRGTTQ1 is an open-drain output that goes low during EN disable, undervoltage lockout (VIN < 2.7 V), or thermal shutdown (TJ > 160°C), and remains high-impedance otherwise. It requires an external pullup resistor (e.g., 10 kΩ to VOUT) and can sink 2 mA. This behavior enables reliable power-rail sequencing and fault indication in automotive ECUs.
What is the purpose of the VOS pin on the TPS62153AQRGTTQ1, and how should it be connected?
The VOS (Voltage Output Sense) pin on the TPS62153AQRGTTQ1 provides Kelvin sensing of the output voltage directly at the capacitor terminals, improving regulation accuracy under high-current PCB trace resistance. It must be connected to the positive terminal of the main output capacitor - not to the FB pin or SW node - to close the control loop with minimal IR drop error.
Is the TPS62153AQRGTTQ1 pin-compatible with other devices in the TPS6215x-Q1 family?
Yes, the TPS62153AQRGTTQ1 shares identical pinout, package (VQFN-16 RGT), and footprint with TPS62150A-Q1 and TPS62152A-Q1 - enabling drop-in replacement across 5-V, 3.3-V, and adjustable versions. All share the same EN, PG, FSW, DEF, SS/TR, and thermal pad connections, simplifying multi-voltage platform design and BOM consolidation.
TPS62153AQRGTTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62153AQRGTTQ1 FAQ
1.How can I place an order for TPS62153AQRGTTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62153AQRGTTQ1 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 TPS62153AQRGTTQ1 reliable?
The price and inventory of TPS62153AQRGTTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62153AQRGTTQ1 is usually 5 days.
3.What payment methods are accepted for TPS62153AQRGTTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62153AQRGTTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62153AQRGTTQ1?
TPS62153AQRGTTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62153AQRGTTQ1 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 TPS62153AQRGTTQ1?
For technical support, including TPS62153AQRGTTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62153AQRGTTQ1 requirements.
6.How does Aetrix verify that TPS62153AQRGTTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62153AQRGTTQ1 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 TPS62153AQRGTTQ1 meets industry standards.
7.What is the process for return or replacement of TPS62153AQRGTTQ1?
All TPS62153AQRGTTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62153AQRGTTQ1, 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 TPS62153AQRGTTQ1 part is unused and in its original packaging.
Return procedure for TPS62153AQRGTTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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