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Texas Instruments TPS61088QRHLRQ1
- Part No.:
- TPS61088QRHLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
TPS61088QRHLRQ1.pdf
- Description:
- IC REG BOOST ADJ 10A 20VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,120
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Product details
Overview
TPS61088QRHLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified synchronous boost converter IC designed for high-power post-regulation in safety-critical vehicle subsystems. It delivers up to 10-A switch current, supports 2.7–12-V input and 4.5–12.6-V output, achieves >90% efficiency at 5-VIN/9-VOUT/3-A, and integrates adaptive constant off-time peak-current control for fast transient response in E-call speaker drive and power-over-coax applications.
For engineers reviewing the TPS61088QRHLRQ1 datasheet, TPS61088QRHLRQ1 pinout, TPS61088QRHLRQ1 application, or TPS61088QRHLRQ1 equivalent, key selection criteria include its programmable 200-kHz–2.2-MHz switching frequency, resistor-adjustable 7.2–13.0-A peak current limit, 1-µA shutdown current, 13.2-V overvoltage protection, and thermal shutdown at 150°C - all validated for –40°C to +125°C operation.
Technical Context
The TPS61088QRHLRQ1 implements adaptive constant off-time peak-current control with quasi-constant-frequency PWM operation under moderate-to-heavy loads and dual-mode light-load behavior (PFM for efficiency, forced PWM for noise control). Its internal 21.3-mΩ high-side and 24.4-mΩ low-side MOSFETs enable high-power density conversion without external switches.
It features fully integrated loop compensation via external RC network on COMP, programmable soft-start via SS pin capacitor, and independent UVLO thresholds for VIN (2.4 V falling) and VCC (2.1 V falling). Protection includes cycle-by-cycle overcurrent, output overvoltage clamping at 13.2 V, and thermal shutdown with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 12 V - supports single/dual Li-ion backup battery and automotive 3.3-V/5-V rails as input sources. |
| Output Voltage Range | 4.5 V to 12.6 V - powers CAN transceivers, A2B audio bus, PoC systems, and 10–11-V E-call amplifiers. |
| Switch Current Limit | 7.2–13.0 A (programmable via ILIM resistor) - enables cold-crank operation (e.g., 3.5-VIN → 11-VOUT @ 2-A). |
| Switching Frequency | 200 kHz to 2.2 MHz (set by FSW-to-SW resistor) - allows EMI optimization and inductor size reduction. |
| Efficiency | >90% at 5-VIN/9-VOUT/3-A - minimizes thermal load in compact automotive modules. |
| Shutdown Current | 1 µA into VIN - preserves battery life during vehicle sleep mode. |
| Overvoltage Protection | 13.2 V (typical) with 0.25-V hysteresis - safeguards downstream audio amplifiers and RF front-ends. |
| Operating Junction Temp | –40°C to +125°C (Grade 1) - certified for under-hood and infotainment module deployment. |
Pinout & Package
TPS61088QRHLRQ1 uses a thermally enhanced 4.50-mm × 3.50-mm 20-pin VQFN package (RHL) with exposed thermal pad for automotive-grade power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input supply | Accepts 2.7–12-V source; connects to input capacitor bank and internal LDO input. |
| EN | Enable logic input | Active-high control: ≥1.2 V enables regulation; ≤0.4 V forces 1-µA shutdown state. |
| FB | Voltage feedback input | Monitors output via resistor divider; sets VOUT = 1.204 V × (1 + R1/R2) with ±1.5% reference accuracy. |
| COMP | Error amplifier output | Connects external RC compensation network to stabilize loop dynamics across load/transient conditions. |
| ILIM | Peak current limit programming | Resistor to AGND sets switch current limit: 49.9 kΩ yields 11.4 A (PFM) or 8.7 A (FPWM). |
| MODE | Light-load operation mode select | Floating = PFM (high efficiency); grounded = forced PWM (fixed frequency, no acoustic noise). |
| SS | Soft-start timing control | Capacitor to AGND sets ramp time: tSS = 1.204 V × CSS / 5 µA; prevents inrush current at startup. |
| SW | Internal switching node | Drain of low-side MOSFET / source of high-side MOSFET; connects to inductor and bootstrap capacitor. |
| BOOT | High-side gate driver supply | 0.1-µF ceramic capacitor between BOOT and SW provides floating bias for high-side N-MOSFET gate. |
| VOUT | Regulated output | Delivers up to 12.6 V; pins 14–16 are paralleled for low-impedance high-current output path. |
| AGND | Analog ground reference | Signal ground for FB, COMP, ILIM, MODE, SS; must be separated from PGND to avoid noise coupling. |
| PGND | Power ground return | Source of low-side MOSFET; connects to input/output capacitors and inductor ground; ties to thermal pad. |
| VCC | Internal LDO output | 5.8-V regulated supply for gate drivers and control circuitry; requires ≥1-µF ceramic capacitor to AGND. |
| FSW | Frequency setting input | Resistor to SW pin programs switching frequency: 301 kΩ = 500 kHz, 53.6 kΩ = 2 MHz. |
| NC | No-connect terminal | Pins 11 and 12 are internally unconnected; recommended to tie to PCB ground plane for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40°C to +125°C ambient, including thermal cycling and humidity testing. |
| Adaptive constant off-time control | Enables fast line/load transient response with minimal output capacitance (e.g., 6.8–1000 µF CO range). |
| Programmable soft-start | Prevents inrush current via externally timed voltage ramp on SS pin; typical 47-nF yields ~11.4-ms start-up. |
| Dual light-load modes | PFM maintains >80% efficiency down to 1-mA load; forced PWM eliminates audible switching noise in cabin systems. |
| Integrated 21.3-mΩ/24.4-mΩ MOSFETs | Eliminates external power switches, reduces BOM count, and improves thermal performance in 4.5×3.5-mm footprint. |
| Comprehensive protection suite | Includes cycle-by-cycle OCP, 13.2-V OVP, thermal shutdown (150°C), and dual UVLO (VIN/VCC) for robust system operation. |
Applications
| Automotive E-call System | Automotive Smart Antenna |
|---|---|
|
Use Scenario: Powers emergency call speaker, microphone preamp, and GSM/LTE modem during vehicle crash or battery failure. IC Role / Device Role / Timing Role: High-current boost regulator delivering stable 11-V output from degraded 3.5-V battery during cold crank. Use Value: Maintains 2-A output capability at 3.5-VIN, ensuring voice clarity and transmission reliability under worst-case battery conditions. |
Use Scenario: Supplies 5-V or 9-V rail to active antenna tuners and GNSS receivers in roof-mounted modules. IC Role / Device Role / Timing Role: Post-boost converter elevating 3.3-V main rail to higher voltage for RF front-end biasing and signal integrity. Use Value: Enables precise antenna impedance matching and low-noise amplification with <90% efficiency at 3-A load. |
| Power-over-Coax (PoC) | Automotive Audio Bus (A2B) |
|
Use Scenario: Provides isolated 12-V power to camera modules over coaxial cable in ADAS vision systems. IC Role / Device Role / Timing Role: High-efficiency DC-DC stage generating clean 12.6-V output from vehicle battery for remote sensor powering. Use Value: Supports 30-W output capability and 13.2-V OVP to protect sensitive image sensors from overvoltage events. |
Use Scenario: Supplies regulated 10-V rail to A2B slave nodes controlling digital microphones and speakers in premium audio systems. IC Role / Device Role / Timing Role: Synchronous boost IC delivering low-ripple, high-stability voltage for real-time audio data transmission. Use Value: Achieves <1% output ripple at full load and fast transient recovery (<10 µs) to prevent audio artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRNTRQ1 | Lower 8-A switch current; fixed 2.1-MHz frequency; no PFM mode; requires external MOSFETs. | Better suited for space-constrained 5-V→12-V fixed-frequency designs where acoustic noise is not critical. | Select when board area is tighter than 4.5×3.5 mm and 10-A peak current is not required. |
| TPS61282DRCTQ1 | 6-A switch current; 2.5-V–5.5-V input only; 4.5-V–5.5-V output; smaller 3×3-mm QFN package. | Targeted at 3.3-V→5-V post-regulation for CAN/LIN transceivers, not high-voltage PoC or E-call. | Choose for cost-sensitive 5-V rail generation where 10-A capability and 12.6-V output are unnecessary. |
Compared with LM61480QRNTRQ1 and TPS61282DRCTQ1, the TPS61088QRHLRQ1 uniquely combines 10-A current delivery, 12.6-V output, AEC-Q100 Grade 1 rating, and dual-mode light-load operation - making it the only option qualified for automotive E-call speaker drive and power-over-coax systems requiring >20-W output.
Availability
TPS61088QRHLRQ1 is available at Aetrix Electronics and suitable for automotive E-call systems, smart antenna modules, power-over-coax (PoC) camera supplies, and A2B audio bus nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS61088QRHLRQ1 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 automotive ICs, with decades of automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The TPS61088QRHLRQ1 belongs to TI's automotive-grade power management portfolio, engineered specifically for high-reliability, high-current DC-DC conversion in safety-critical vehicle subsystems such as emergency communication and advanced driver assistance.
FAQ
What is the maximum output voltage supported by the TPS61088QRHLRQ1?
The TPS61088QRHLRQ1 supports a maximum regulated output voltage of 12.6 V, as specified in its recommended operating conditions and confirmed by its 13.2-V overvoltage protection threshold. This enables direct powering of 12-V audio amplifiers, PoC camera modules, and A2B slave devices without additional regulation stages. The output is set via external resistor divider on the FB pin, with VREF = 1.204 V ±1.5%.
How does the MODE pin affect light-load efficiency in the TPS61088QRHLRQ1?
In the TPS61088QRHLRQ1, the MODE pin selects between two light-load behaviors: when left floating, the device enters PFM mode, achieving >80% efficiency down to 1-mA load by reducing switching frequency; when pulled to ground, it operates in forced PWM mode with fixed frequency to eliminate audible noise. This dual-mode flexibility allows system designers to optimize for either battery life or acoustic performance depending on application requirements.
Can the TPS61088QRHLRQ1 operate during automotive cold-crank conditions?
Yes, the TPS61088QRHLRQ1 is explicitly designed for cold-crank operation: its 2.7-V minimum input voltage and 10-A switch current allow sustained 11-V output at 2-A load even when input drops to 3.5 V. Combined with AEC-Q100 Grade 1 qualification (–40°C to +125°C), this ensures reliable E-call functionality during engine start-up when battery voltage sags below 6 V.
What is the purpose of the ILIM pin on the TPS61088QRHLRQ1?
The ILIM pin on the TPS61088QRHLRQ1 allows resistor-programmable peak switch current limiting - a critical safety feature for automotive applications. Connecting a resistor between ILIM and AGND sets the current limit: 49.9 kΩ yields 11.4 A in PFM mode or 8.7 A in forced PWM mode. This protects the IC and external components during overload, short-circuit, or inductor saturation events while maintaining design flexibility across varying power requirements.
Does the TPS61088QRHLRQ1 require external MOSFETs?
No, the TPS61088QRHLRQ1 is a fully-integrated synchronous boost converter with internal 21.3-mΩ high-side and 24.4-mΩ low-side N-channel MOSFETs. No external power switches are needed - only passive components (inductor, input/output capacitors, feedback resistors, soft-start capacitor, and frequency/ILIM resistors) are required for complete operation. This integration reduces solution size, improves efficiency, and simplifies layout for automotive modules.
TPS61088QRHLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- 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):
- 2.7V
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- 12.6V
- Current - Output:
- 10A
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VQFN (3.5x4.5)
TPS61088QRHLRQ1 FAQ
1.How can I place an order for TPS61088QRHLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61088QRHLRQ1 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 TPS61088QRHLRQ1 reliable?
The price and inventory of TPS61088QRHLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61088QRHLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS61088QRHLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61088QRHLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61088QRHLRQ1?
TPS61088QRHLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61088QRHLRQ1 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 TPS61088QRHLRQ1?
For technical support, including TPS61088QRHLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61088QRHLRQ1 requirements.
6.How does Aetrix verify that TPS61088QRHLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61088QRHLRQ1 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 TPS61088QRHLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS61088QRHLRQ1?
All TPS61088QRHLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61088QRHLRQ1, 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 TPS61088QRHLRQ1 part is unused and in its original packaging.
Return procedure for TPS61088QRHLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61088QRHLRQ1 Tags
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TPS562201DDCR
Texas Instruments
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MC34063ABD-TR
STMicroelectronics
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TPS561201DDCR
Texas Instruments
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MC33063ADR
Texas Instruments
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MC34063ADR
Texas Instruments
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TPS560200DBVR
Texas Instruments
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AP3012KTR-G1
Diodes Incorporated
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TLV61048DBVR
Texas Instruments
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AZ34063UMTR-G1
Diodes Incorporated
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TPS562200DDCR
Texas Instruments
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AP62300TWU-7
Diodes Incorporated
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MC34063EBD-TR
STMicroelectronics
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