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Texas Instruments TPS61088RHLT
- Part No.:
- TPS61088RHLT
- Manufacturer:
- Texas Instruments
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
TPS61088RHLT.pdf
- Description:
- IC REG BOOST ADJ 10A 20VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,711
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Product details
Overview
TPS61088RHLT from Texas Instruments is a fully-integrated synchronous boost converter IC designed for high-power portable systems, delivering up to 30 W from single- or dual-cell Li-ion batteries. It features a 10-A switch current capability, 2.7–12-V input range, 4.5–12.6-V output range, and operates in adaptive constant off-time peak current control topology with selectable PFM or forced PWM light-load modes.
For engineers reviewing the TPS61088RHLT datasheet, TPS61088RHLT pinout, TPS61088RHLT application, or TPS61088RHLT equivalent, key selection considerations include programmable peak current limit (via ILIM pin), adjustable switching frequency (200 kHz–2.2 MHz), soft-start timing control (via SS pin), and integrated overvoltage (13.2 V) and thermal shutdown (150°C) protections.
Technical Context
The TPS61088RHLT implements adaptive constant off-time peak current control to achieve fast transient response with minimal output capacitance. Its quasi-constant-frequency PWM operation under moderate-to-heavy loads ensures stable regulation while enabling flexible inductor and capacitor selection via external loop compensation at the COMP pin.
In light-load conditions, mode selection via the MODE pin determines functional behavior: floating enables PFM for >80% efficiency down to 1 mA load, while grounding forces fixed-frequency PWM to suppress audible noise and avoid low-frequency interference-critical for Thunderbolt interface and Bluetooth speaker applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 12 V - supports single-cell (3.0–4.2 V) and two-cell (6.0–8.4 V) Li-ion battery inputs without external pre-regulation. |
| Output Voltage Range | 4.5 V to 12.6 V - configurable via FB resistor divider; enables USB PD-compatible 9-V and quick-charge power bank outputs. |
| Switch Current Limit | Programmable 9.0–13.0 A - set by external resistor on ILIM pin; allows optimization for inductor saturation margin and thermal design. |
| Switching Frequency | 200 kHz to 2.2 MHz - adjusted via resistor between FSW and SW pins; higher frequencies reduce inductor size but increase switching loss. |
| Efficiency | Up to 91% at VIN = 3.3 V, VOUT = 9 V, IOUT = 3 A - achieved using 11-mΩ high-side and 13-mΩ low-side MOSFETs in synchronous rectification. |
| Shutdown Current | 1.0 µA into VIN - enables ultra-low power-off state for e-cigarette and portable POS terminal battery conservation. |
| Output OVP Threshold | 13.2 V (typical) - latches off switching until VOUT falls below 12.95 V; protects downstream 12-V logic and analog circuitry. |
Pinout & Package
The TPS61088RHLT 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 | Primary supply input (2.7–12 V); connects to battery or DC source; requires ≥10-µF ceramic input capacitance. |
| EN | Enable control | Logic-high active enable; internal 800-kΩ pull-down ensures default disable; supports system-level power sequencing. |
| SW | Switch node | Drain of low-side MOSFET / source of high-side MOSFET; connects to inductor and BOOT capacitor; handles high di/dt. |
| BOOT | High-side gate drive | Supplies gate voltage for high-side MOSFET; requires 0.1-µF ceramic capacitor to SW for charge pump operation. |
| SS | Soft-start control | Charged at 5 µA to ramp reference voltage; sets startup time (e.g., 47 nF → ~11.4 ms); prevents inrush current damage. |
| MODE | Light-load mode select | Floating = PFM (high efficiency); grounded = forced PWM (fixed frequency, no acoustic noise); no external pull required. |
| ILIM | Current limit programming | Resistor-to-AGND sets peak switch current; supports 9.0–13.0 A range depending on MODE pin state. |
| FB | Output voltage feedback | Compares divided VOUT against 1.204-V internal reference; sets output with ±0.7% accuracy across temperature. |
| COMP | Error amplifier output | External RC network here sets loop stability; enables optimization for different L/CO combinations and load dynamics. |
| 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 | Enables >30-W output from 3.3-V input with minimal conduction loss and no external power stage components. |
| Adaptive constant off-time control | Delivers excellent line/load transient response with <10-µF total output capacitance, reducing BOM count and board area. |
| Programmable soft start | Prevents inrush current spikes during power-up; avoids brownout in shared battery rails for portable POS terminals. |
| Two-mode light-load operation | PFM maintains >80% efficiency at 1-mA load; forced PWM eliminates sub-audible switching noise in Bluetooth speakers. |
| Comprehensive protection suite | Includes cycle-by-cycle overcurrent, 13.2-V output overvoltage, thermal shutdown (150°C), and input UVLO (2.4 V). |
Applications
| Portable POS Terminal | Bluetooth™ Speaker |
|---|---|
Use Scenario: Powers display, thermal printer, and NFC reader from single Li-ion cell (3.0–4.2 V) while maintaining stable 9-V rail for audio amplifiers. IC Role / Device Role / Timing Role: Primary boost regulator providing regulated 9-V output; manages dynamic load steps during print head activation and card swipe events. Use Value: Adaptive off-time control ensures <50-mV output deviation during 0–2-A load transients; soft-start prevents reset glitches during cold boot. | Use Scenario: Supplies 9-V bias to Class-D amplifier ICs in compact wireless speakers powered by 3.7-V Li-ion battery. IC Role / Device Role / Timing Role: High-efficiency voltage booster operating in PFM mode during standby; switches to forced PWM during music playback to eliminate coil whine. Use Value: 91% peak efficiency extends battery life; 13.2-V OVP safeguards amplifier ICs rated for 12-V maximum supply. |
| E-cigarette | Quick Charge Power Bank |
Use Scenario: Generates regulated 5-V or 7-V output from 3.2–4.2-V battery to drive heating coil with precise wattage control. IC Role / Device Role / Timing Role: Primary power conversion stage; ILIM pin enables user-adjustable current limit matching coil resistance and desired vapor production. Use Value: 1.0-µA shutdown current preserves battery charge during weeks of storage; thermal shutdown prevents overheating during extended puff cycles. | Use Scenario: Steps up 3.6-V battery voltage to 9-V or 12-V for USB-C PD output ports in multi-cell power banks. IC Role / Device Role / Timing Role: High-current boost controller supporting 3-A continuous output; FSW pin enables frequency tuning to balance EMI and efficiency. Use Value: 10-A switch rating accommodates 30-W burst charging; programmable soft start prevents voltage droop when connecting loaded devices. |
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-A switch current, 2-MHz max frequency, no PFM mode, smaller 3×3-mm QFN | Limited to ≤15-W output; lacks light-load efficiency optimization and programmable current limit | Choose for space-constrained, medium-power designs where fixed PWM suffices and cost is prioritized. |
| RT7295BGJ6F | 6-A switch current, integrated compensation, no MODE pin, 2.5-V min input | Cannot support 2.7-V start-up; no selectable light-load mode; lower peak power capability | Prefer for simplified layout where integrated compensation reduces component count, but verify minimum input compatibility. |
Compared with MP2451DT-LF-Z and RT7295BGJ6F, the TPS61088RHLT delivers 2.2× higher switch current and full light-load mode flexibility, making it uniquely suitable for 30-W portable power applications requiring both high efficiency and acoustic noise control.
Availability
TPS61088RHLT is available at Aetrix Electronics and suitable for portable POS terminals, Bluetooth speakers, e-cigarettes, Thunderbolt interfaces, and quick-charge power banks requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS61088RHLT 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 technologies, with decades of expertise in high-efficiency DC/DC conversion.
The TPS61088 product line targets high-power-density portable electronics, delivering robust synchronous boost capability for battery-powered systems demanding >30-W output, wide input range, and intelligent light-load management.
FAQ
What is the minimum input voltage required for TPS61088RHLT to start switching?
The TPS61088RHLT has an input undervoltage lockout (UVLO) threshold of 2.4 V (falling) with 200-mV hysteresis. Therefore, the device begins switching when VIN rises above 2.7 V and remains operational down to 2.4 V before disabling. This ensures reliable startup from partially discharged single-cell Li-ion batteries while preventing deep discharge damage.
How does the MODE pin affect efficiency and noise performance in TPS61088RHLT?
When the MODE pin is left floating, the TPS61088RHLT enters PFM mode at light loads, achieving >80% efficiency down to 1 mA by reducing switching frequency-ideal for standby in e-cigarettes. When grounded, it forces fixed-frequency PWM, eliminating variable-frequency coil whine in Bluetooth speakers but reducing light-load efficiency by ~10–15 percentage points.
Can TPS61088RHLT be used to generate 12.6 V output from a 3.6-V input?
Yes, the TPS61088RHLT supports output voltages up to 12.6 V across its full input range (2.7–12 V). At VIN = 3.6 V and VOUT = 12.6 V, it delivers up to ~2.3 A continuously (limited by thermal design and inductor saturation), verified in TI's typical application data. Output regulation accuracy remains within ±0.7% via the FB pin's 1.204-V reference.
What is the purpose of the ILIM pin on TPS61088RHLT, and how is it configured?
The ILIM pin on TPS61088RHLT sets the peak switch current limit via an external resistor to AGND. In PFM mode (MODE floating), RILIM = 1190 kΩ / ILIM; in forced PWM (MODE grounded), RILIM = (1190 kΩ / ILIM) × 1.6. For example, a 100-kΩ resistor yields ~11.9 A in PFM and ~10.3 A in FPWM-allowing precise current limiting for inductor and thermal design.
Does TPS61088RHLT require external compensation, and where is it connected?
Yes, the TPS61088RHLT uses external loop compensation for flexibility. The COMP pin connects to AGND through an RC network (typically 1–10-kΩ resistor + 100–1000-pF capacitor), enabling optimization for specific inductor DCR, output capacitance ESR, and transient response requirements-critical for stable operation across varying load and temperature conditions.
TPS61088RHLT 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)
TPS61088RHLT FAQ
1.How can I place an order for TPS61088RHLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61088RHLT 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 TPS61088RHLT reliable?
The price and inventory of TPS61088RHLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61088RHLT is usually 5 days.
3.What payment methods are accepted for TPS61088RHLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61088RHLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61088RHLT?
TPS61088RHLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61088RHLT 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 TPS61088RHLT?
For technical support, including TPS61088RHLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61088RHLT requirements.
6.How does Aetrix verify that TPS61088RHLT is sourced from the original manufacturer or authorized distributors?
All TPS61088RHLT 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 TPS61088RHLT meets industry standards.
7.What is the process for return or replacement of TPS61088RHLT?
All TPS61088RHLT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61088RHLT, 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 TPS61088RHLT part is unused and in its original packaging.
Return procedure for TPS61088RHLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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