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Texas Instruments TPS62152QRGTRQ1
- Part No.:
- TPS62152QRGTRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62152QRGTRQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A 16VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS62152QRGTRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified synchronous step-down DC-DC converter with fixed 3.3 V output, 1-A continuous output current capability, 4–17 V input range, 2.5 MHz typical switching frequency, and DCS-Control™ topology for fast transient response in automotive infotainment and ADAS systems.
For engineers reviewing the TPS62152QRGTRQ1 datasheet, TPS62152QRGTRQ1 pinout, TPS62152QRGTRQ1 application, or TPS62152QRGTRQ1 equivalent, key selection criteria include its automotive qualification, seamless PWM-to-power-save mode transition, 17 µA quiescent current, 3 × 3-mm VQFN-16 package with exposed thermal pad, and integrated power-good signaling for rail sequencing.
Technical Context
The TPS62152QRGTRQ1 implements TI's DCS-Control™ topology, combining voltage-mode feedback with direct control of the output voltage ramp to achieve stable regulation using small ceramic capacitors and low-ESR output filters. Its dual-mode operation-PWM at medium/heavy loads and automatic power-save mode at light loads-ensures >85% efficiency across 10 µA–1 A load range without external mode control logic.
It integrates high-side and low-side MOSFETs with RDS(on) of 90 mΩ (HS) and 40 mΩ (LS) at VIN ≥ 6 V, supports 100% duty-cycle operation for ultra-low dropout, and features programmable soft-start via external capacitor on SS/TR pin for monotonic pre-biased startup and tracking functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.8% (PWM mode), ±2.3% (power-save mode); no external feedback resistors required. |
| Input Voltage Range | 4 V to 17 V; supports Li-ion battery packs and 12-V automotive rails with undervoltage lockout at 2.7 V (200 mV hysteresis). |
| Max Output Current | 1 A continuous; internal current limit of 1.7 A (typ) protects against overload and short-circuit conditions. |
| Switching Frequency | 2.5 MHz (FSW = Low) or 1.25 MHz (FSW = High); enables use of 2.2 µH inductor and compact 3 × 3-mm layout. |
| Quiescent Current | 17 µA (typ) in power-save mode; maintains high efficiency down to 10 µA load without external bias. |
| Thermal Performance | RθJA = 45 °C/W; exposed thermal pad and PGND/AGND connections enable reliable operation at 125°C ambient. |
| Protection Features | Integrated overtemperature shutdown (160°C), short-circuit protection, and open-drain power-good (PG) with 95% VOUT threshold. |
Pinout & Package
TPS62152QRGTRQ1 is housed in a 3.00 mm × 3.00 mm VQFN-16 package (RGT) with exposed thermal pad soldered to PCB ground for thermal dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 1, 2, 3) | Switch node | Connects internal high-/low-side MOSFETs to external inductor; requires low-inductance routing to minimize switching noise. |
| PVIN (Pins 11, 12) | Power supply input | High-current path for power stage; must be decoupled with 10 µF ceramic capacitor near pins. |
| AVIN (Pin 10) | Analog supply input | Provides clean bias for control circuitry; tie directly to PVIN but route separately for noise isolation. |
| AGND (Pin 6), PGND (Pins 15, 16) | Analog & power ground | AGND connects to exposed thermal pad and system analog ground; PGND ties to power ground plane and thermal pad. |
| EN (Pin 13) | Enable input | Active-high logic control; internal 400 kΩ pulldown allows standalone operation; supports power-rail sequencing. |
| SS/TR (Pin 9) | Soft-start/tracking | External capacitor sets output ramp time; also accepts master voltage for synchronized rail tracking. |
| DEF (Pin 8) | Output voltage scaling | Logic-low = 3.3 V nominal; logic-high = 3.465 V (+5%); connect to VOUT or PG-not VIN-to avoid overvoltage. |
| PG (Pin 4) | Power-good output | Open-drain signal indicating VOUT ≥ 95% of regulation; requires external pullup for rail sequencing or fault monitoring. |
| FB (Pin 5) | Feedback reference | Internally connected to 0.8 V reference; TI recommends tying to AGND for improved thermal performance (fixed-output mode). |
| VOS (Pin 14) | Voltage sense input | Direct connection to output capacitor for accurate regulation; minimizes trace impedance impact on feedback loop. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables stable regulation with 22 µF ceramic output capacitor and eliminates need for external compensation components. |
| Seamless PWM-to-power-save transition | Zero-output-voltage glitch during mode change; maintains regulation accuracy and ripple < 15 mVPP across full load range. |
| Programmable soft-start & tracking | Configurable startup ramp via CSS capacitor; supports monotonic pre-biased startup and multi-rail voltage tracking. |
| 100% duty-cycle operation | Extends battery runtime by maintaining regulation down to VIN ≈ VOUT + IOUT×(RDS(on) + RL). |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±2000 V and CDM ±750 V ESD robustness. |
Applications
| Instrument Cluster Power Supply | ADAS Camera Module Rail |
|---|---|
|
Use Scenario: Powers microcontroller, display driver, and CAN transceiver in automotive digital instrument clusters. IC Role / Device Role / Timing Role: Primary 3.3-V buck regulator delivering stable, low-noise power with fast load transient response to handle display backlight bursts. Use Value: DCS-Control™ ensures < 20-mV output deviation during 1-A load steps; 17-µA quiescent current extends sleep-mode battery life. |
Use Scenario: Supplies image sensor, ISP, and serial interface in rear-view and surround-view camera modules. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter providing clean 3.3-V rail with minimal EMI to avoid RF interference with video signals. Use Value: 2.5-MHz switching and low output ripple (< 10 mVPP) prevent clock-induced artifacts in captured imagery. |
| Center Stack Infotainment Core | Head Unit Audio DSP Rail |
|
Use Scenario: Generates 3.3-V core voltage for application processor and memory subsystem in vehicle center-stack units. IC Role / Device Role / Timing Role: High-density power solution enabling compact layout in space-constrained head unit enclosures. Use Value: 3 × 3-mm VQFN-16 package with thermal pad supports 1-A load at 85°C ambient without heatsink. |
Use Scenario: Powers audio DSP and codec in premium head units requiring low-noise, tightly regulated supply. IC Role / Device Role / Timing Role: Low-ripple buck converter with PG output for synchronized startup with main SoC and audio clock domain. Use Value: Power-good signal enables precise sequencing with audio PLL lock; 90-dB PSRR at 100 kHz suppresses switching noise coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130AQRTVRQ1 | Adjustable output (0.9–6.0 V), same 4–17 V input, 1-A rating, and DCS-Control™; lacks DEF pin and fixed 3.3-V option. | Suitable where multiple output voltages are needed on same board; requires external resistor divider and adds BOM complexity. | Select when flexibility outweighs simplicity; not drop-in-requires layout and firmware changes for feedback network. |
| MP2451DT-LF-Z | Non-automotive grade; 3.3-V fixed, 0.6-A max, 2-MHz switching; no PG, no soft-start programming, no AEC-Q100 qualification. | Acceptable for cost-sensitive non-safety infotainment peripherals; unsuitable for ADAS or cluster-critical rails. | Choose only for non-automotive or non-safety applications; lacks thermal shutdown hysteresis and ESD robustness required for vehicle environments. |
Compared with TPS62152QRGTRQ1, the TPS62130AQRTVRQ1 offers output voltage flexibility at the cost of added external components and no pin compatibility, while the MP2451DT-LF-Z sacrifices automotive reliability, current capability, and feature set for lower unit cost in non-qualified designs.
Availability
TPS62152QRGTRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and instrument cluster designs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS62152QRGTRQ1 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 deep expertise in automotive-grade power solutions and functional safety design.
The TPS62152QRGTRQ1 belongs to TI's automotive-qualified DC-DC converter product line, engineered specifically for high-reliability, space-constrained power delivery in infotainment, ADAS, and digital cluster systems.
FAQ
What is the maximum output current capability of the TPS62152QRGTRQ1?
The TPS62152QRGTRQ1 delivers up to 1 A of continuous output current under recommended operating conditions (TA ≤ 125°C, proper PCB thermal design). Its internal current limit is 1.7 A (typical), providing margin for transient peaks. Sustained 1-A operation requires adequate copper area on PGND/AGND planes and thermal pad soldering per TI's layout guidelines to maintain junction temperature below 125°C.
Does the TPS62152QRGTRQ1 support pre-biased output startup?
Yes, the TPS62152QRGTRQ1 supports monotonic pre-biased startup: neither MOSFET turns on until the internal soft-start ramp exceeds the existing output voltage. This prevents reverse current flow and ensures safe startup into partially charged rails. The SS/TR pin must be left floating or pulled to AVIN (not grounded) to enable this behavior, and the EN pin must be asserted after the pre-bias condition is established.
How does the DEF pin affect the output voltage of the TPS62152QRGTRQ1?
The DEF pin scales the TPS62152QRGTRQ1 output voltage: logic-low (≤ 0.3 V) configures nominal 3.3 V regulation; logic-high (≥ 0.9 V) increases output to 3.465 V (+5%). TI specifies that DEF must be tied to VOUT or PG-not VIN-to avoid exceeding absolute maximum ratings. This feature enables margin testing or compensation for downstream voltage drops without changing external components.
What is the purpose of separate AVIN and PVIN pins on the TPS62152QRGTRQ1?
AVIN supplies clean bias to the analog control circuitry (error amplifier, oscillator, comparators), while PVIN powers the high-current power stage (MOSFET drivers, switches). Though both connect to the same input source, separating their routing reduces noise coupling from switching transients into sensitive analog blocks-improving regulation accuracy and stability. TI recommends star-point connection near the IC and individual 10-µF ceramic decoupling for each pin.
Can the TPS62152QRGTRQ1 operate with input voltage close to its 3.3-V output?
Yes, the TPS62152QRGTRQ1 enters 100% duty-cycle mode when VIN approaches VOUT, maintaining regulation by holding the high-side FET fully on. It sustains output regulation down to VIN ≈ VOUT + IOUT × (RDS(on) + RL). For example, at 1 A load with 90-mΩ HS RDS(on) and 20-mΩ inductor DCR, regulation holds down to ~3.41 V input-enabling extended runtime in battery-powered automotive systems.
TPS62152QRGTRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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):
- 3.3V
- 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)
TPS62152QRGTRQ1 FAQ
1.How can I place an order for TPS62152QRGTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62152QRGTRQ1 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 TPS62152QRGTRQ1 reliable?
The price and inventory of TPS62152QRGTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62152QRGTRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62152QRGTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62152QRGTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62152QRGTRQ1?
TPS62152QRGTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62152QRGTRQ1 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 TPS62152QRGTRQ1?
For technical support, including TPS62152QRGTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62152QRGTRQ1 requirements.
6.How does Aetrix verify that TPS62152QRGTRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62152QRGTRQ1 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 TPS62152QRGTRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62152QRGTRQ1?
All TPS62152QRGTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62152QRGTRQ1, 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 TPS62152QRGTRQ1 part is unused and in its original packaging.
Return procedure for TPS62152QRGTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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