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Texas Instruments TPS61088RHLR
- Part No.:
- TPS61088RHLR
- Manufacturer:
- Texas Instruments
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
TPS61088RHLR.pdf
- Description:
- IC REG BOOST ADJ 10A 20VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,295
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Product details
Overview
TPS61088RHLR from Texas Instruments is a fully-integrated synchronous boost converter IC designed for high-power portable systems, delivering up to 12.6 V output from 2.7–12 V input with 10-A switch current capability, 91% peak efficiency at 3.3 VIN/9 VOUT/3 A, and adaptive constant off-time peak current control - used in power banks, Bluetooth speakers, and Thunderbolt interfaces.
For engineers reviewing the TPS61088RHLR datasheet, TPS61088RHLR pinout, TPS61088RHLR application, or TPS61088RHLR equivalent, key selection considerations include programmable 200 kHz–2.2 MHz switching frequency, resistor-adjustable peak current limit (9.0–13.0 A), PFM/forced PWM mode selection via MODE pin, and integrated overvoltage (13.2 V) and thermal shutdown protection.
Technical Context
The TPS61088RHLR implements adaptive constant off-time peak current control to regulate output voltage with quasi-constant-frequency PWM under moderate-to-heavy loads and selectable PFM or forced PWM operation under light loads. Its internal 11-mΩ high-side and 13-mΩ low-side MOSFETs enable high efficiency and compact design.
Switching frequency is set externally via resistor between FSW and SW pins (200 kHz–2.2 MHz range); soft-start is programmed by capacitor on SS pin (5 µA charging current); and peak current limit is adjusted via resistor from ILIM to AGND (100 kΩ yields 11.9 A in PFM, 10.3 A in FPWM). Output overvoltage protection triggers at 13.2 V with 0.25-V hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 12 V - supports single-cell or two-cell Li-ion battery inputs without external pre-regulation. |
| Output Voltage Range | 4.5 V to 12.6 V - configurable via FB resistor divider for applications requiring >5 V rails (e.g., USB PD, display bias). |
| Switch Current Limit | 9.0–13.0 A - adjustable via ILIM pin resistor; enables robust 30-W+ power delivery from 3.3 V input. |
| Peak Efficiency | 91% at VIN = 3.3 V, VOUT = 9 V, IOUT = 3 A - minimizes thermal load in space-constrained portable enclosures. |
| Switching Frequency | 200 kHz to 2.2 MHz - externally resistor-programmable to avoid EMI-sensitive bands or optimize inductor size. |
| Shutdown Current | 1.0 µA into VIN - preserves battery life during system sleep in always-on portable devices. |
| Overvoltage Protection | 13.2 V threshold with 0.25 V hysteresis - safeguards downstream 12-V logic, PMICs, or analog circuitry. |
Pinout & Package
TPS61088RHLR is housed in a thermally enhanced 4.50-mm × 3.50-mm 20-pin VQFN package (RHL) with exposed thermal pad for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input supply | Accepts 2.7–12 V input; connects to battery or intermediate rail; UVLO threshold at 2.4 V falling. |
| EN | Enable logic input | Active-high control; internal 800-kΩ pull-down allows simple microcontroller GPIO interface. |
| SW | Switching node | Drain of low-side MOSFET / source of high-side MOSFET; connects to inductor and BOOT capacitor. |
| BOOT | High-side gate driver supply | Requires 0.1-µF ceramic capacitor to SW; enables full enhancement of internal high-side MOSFET. |
| FB | Voltage feedback input | Monitors output via resistor divider; reference voltage 1.204 V (PWM) or 1.212 V (PFM) sets VOUT precision. |
| ILIM | Peak current limit programming | Resistor to AGND sets switch current limit (9.0–13.0 A); value differs between PFM and FPWM modes. |
| MODE | Light-load operation mode select | Floating = PFM (high efficiency); grounded = forced PWM (fixed frequency, no acoustic noise). |
| SS | Soft-start timing | 5-µA current charges external capacitor; controls output ramp rate to prevent inrush current damage. |
| COMP | Error amplifier output | Connects external compensation network (RC) to AGND; enables stable loop response across L/C variations. |
| AGND / PGND | Signal / power ground | Separate AGND (analog reference) and PGND (high-current return) minimize noise coupling into feedback path. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 11-mΩ/13-mΩ MOSFETs | Eliminates need for external power switches, reducing BOM count and PCB area in high-current boost designs. |
| Adaptive constant off-time control | Delivers fast transient response with minimal output capacitance - critical for dynamic load applications like POS terminals. |
| Programmable soft start (SS pin) | Prevents inrush current damage to input capacitors and battery cells using user-defined ramp time (e.g., 47 nF = ~11.4 ms). |
| Resistor-adjustable switching frequency | Enables EMI compliance tuning and optimization of magnetic component size without changing IC or layout. |
| Cycle-by-cycle overcurrent protection | Shuts off low-side switch immediately upon current limit detection - protects against short-circuit and startup faults. |
Applications
| Portable POS Terminal | Bluetooth™ Speaker |
|---|---|
Use Scenario: Powers 5-V USB peripherals and 12-V display backlight from single-cell Li-ion battery during field transactions. IC Role / Device Role / Timing Role: Primary DC-DC boost regulator providing regulated 12.6-V output with fast load-step response to handle barcode scanner pulses. Use Value: Delivers 30-W peak power within tight thermal envelope while maintaining >85% efficiency at 1-A load via PFM mode. | Use Scenario: Supplies clean 9-V rail to Class-D audio amplifier and DSP from 3.6-V nominal battery. IC Role / Device Role / Timing Role: High-efficiency boost converter operating in PFM mode at standby (<10 mA), switching to FPWM during music playback bursts. Use Value: Achieves >90% efficiency at 3-A output and <1 µA shutdown current - extends speaker runtime by >20% versus discrete solutions. |
| E-cigarette Power Module | Thunderbolt Interface Power Delivery |
Use Scenario: Generates 5-V/3-A output for heating coil control and MCU from 3.2–4.2 V lithium-polymer cell. IC Role / Device Role / Timing Role: Compact, thermally robust boost stage enabling rapid coil warm-up (<500 ms) with precise current limiting. Use Value: 10-A switch rating and cycle-by-cycle OCP ensure safe operation during coil resistance drift and dry-hit events. | Use Scenario: Provides stable 5-V/3-A or 9-V/2-A auxiliary power to Thunderbolt controller and retimer ICs in docking stations. IC Role / Device Role / Timing Role: Secondary boost regulator supporting hot-plug sequencing and low-noise operation required by high-speed SerDes lanes. Use Value: Forced PWM mode eliminates audible switching noise near sensitive RF sections; 13.2-V OVP prevents damage to 5-V tolerant Thunderbolt PHYs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DT-LF-Z | 4.5–16 V input, 2-A switch current, fixed 500 kHz frequency, no PFM/FPWM mode select. | Suitable for lower-power applications (<10 W); lacks programmable current limit and soft-start. | Choose when cost sensitivity outweighs flexibility; not suitable for >3-A output or battery-powered PFM efficiency needs. |
| RT4801GJ6F | 2.5–5.5 V input, 5-A switch current, 1.5-MHz fixed frequency, integrated soft-start, no MODE pin. | Optimized for single-cell 3.3-V systems only; insufficient input range for two-cell or wide-VIN use cases. | Select for ultra-compact 3.3-V boost where 12.6-V output and 10-A capability are unnecessary. |
Compared with MP2451DT-LF-Z and RT4801GJ6F, the TPS61088RHLR uniquely supports dual-cell battery inputs (up to 12 V), delivers 3× higher switch current, and provides mode-selectable light-load operation - making it the only option capable of 30-W portable boost with thermal headroom and efficiency optimization.
Availability
TPS61088RHLR is available at Aetrix Electronics and suitable for portable POS terminals, Bluetooth speakers, e-cigarette power modules, Thunderbolt interface supplies, and quick-charge power banks requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS61088RHLR 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 decades of expertise in high-efficiency DC-DC conversion and automotive-grade reliability.
The TPS61088 product line was engineered specifically for high-power-density portable electronics requiring >10-A boost capability from single- or dual-cell batteries - targeting applications where thermal performance, light-load efficiency, and programmability are critical.
FAQ
What is the maximum output voltage supported by the TPS61088RHLR?
The TPS61088RHLR supports an output voltage range of 4.5 V to 12.6 V, set by an external resistor divider on the FB pin. Its internal overvoltage protection activates at 13.2 V (typical), preventing damage to downstream components. This makes the TPS61088RHLR suitable for applications requiring regulated 9-V or 12-V rails from low-voltage batteries, such as portable displays or USB-C PD accessories.
How does the MODE pin affect light-load efficiency in the TPS61088RHLR?
The MODE pin on the TPS61088RHLR selects between PFM mode (pin floating) for highest light-load efficiency (>80% at 1 mA) and forced PWM mode (pin grounded) for fixed-frequency operation that avoids audible noise. In PFM mode, the TPS61088RHLR extends off-time to reduce switching losses; in FPWM mode, it maintains constant frequency regardless of load - a critical distinction for noise-sensitive audio or RF applications.
Can the TPS61088RHLR be used with a 2-cell Li-ion battery input?
Yes, the TPS61088RHLR accepts input voltages from 2.7 V to 12 V, fully covering the 6-V to 8.4-V range of a two-cell Li-ion battery. Its undervoltage lockout (UVLO) activates at 2.4 V falling, protecting the battery from deep discharge. The TPS61088RHLR's wide VIN range and 10-A switch current make it ideal for dual-cell portable systems requiring high-output power without intermediate regulation stages.
What is the purpose of the ILIM pin on the TPS61088RHLR?
The ILIM pin on the TPS61088RHLR allows resistor-programmable adjustment of the peak switch current limit - 9.0–11.4 A in forced PWM mode and 10.6–13.0 A in PFM mode - using equations provided in the datasheet. This feature enables designers to match current capability to inductor saturation limits and thermal constraints, ensuring reliable operation across varying loads and ambient conditions in the TPS61088RHLR-based design.
Does the TPS61088RHLR require external compensation components?
Yes, the TPS61088RHLR uses external loop compensation connected between the COMP pin and AGND. This design allows flexibility to optimize stability and transient response for different inductor values (0.47–10 µH) and output capacitors (6.8–1000 µF), unlike fixed-compensation converters. Proper compensation is essential for maintaining regulation accuracy and avoiding oscillation - especially in high-current, fast-load-step applications using the TPS61088RHLR.
TPS61088RHLR 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VQFN (3.5x4.5)
TPS61088RHLR FAQ
1.How can I place an order for TPS61088RHLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61088RHLR 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 TPS61088RHLR reliable?
The price and inventory of TPS61088RHLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61088RHLR is usually 5 days.
3.What payment methods are accepted for TPS61088RHLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61088RHLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61088RHLR?
TPS61088RHLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61088RHLR 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 TPS61088RHLR?
For technical support, including TPS61088RHLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61088RHLR requirements.
6.How does Aetrix verify that TPS61088RHLR is sourced from the original manufacturer or authorized distributors?
All TPS61088RHLR 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 TPS61088RHLR meets industry standards.
7.What is the process for return or replacement of TPS61088RHLR?
All TPS61088RHLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61088RHLR, 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 TPS61088RHLR part is unused and in its original packaging.
Return procedure for TPS61088RHLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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