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Texas Instruments TLV62090RGTR
- Part No.:
- TLV62090RGTR
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TLV62090RGTR.pdf
- Description:
- IC REG BUCK ADJ 3A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,754
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Product details
Overview
TLV62090RGTR from Texas Instruments is a 3 A synchronous step-down DC/DC converter with DCS-Control™ topology, operating from 2.5 V to 5.5 V input and delivering adjustable output from 0.8 V to VIN. It achieves up to 98% efficiency at 1.4 MHz switching frequency with 20 µA quiescent current in power save mode, and integrates output discharge, hiccup short-circuit protection, and softstart control - widely used in SSDs, notebook CPU cores, and battery-powered point-of-load regulation.
For engineers reviewing the TLV62090RGTR datasheet, TLV62090RGTR pinout, TLV62090RGTR application, or TLV62090RGTR equivalent, key selection considerations include its 16-pin VQFN (3 mm × 3 mm) package, DCS-Control™ transient response, 0.8 V feedback reference, integrated charge pump for high-side gate drive, and compatibility with 10–150 µF output capacitors in distributed power systems.
Technical Context
The TLV62090RGTR implements DCS-Control™ - a hybrid regulation architecture combining hysteretic speed with voltage-mode stability - enabling seamless PWM-to-power-save mode transition without output disturbance. Its internal 0.8 V reference, 7.5 µA softstart current source, and dual-level hiccup current limit (1.5 A startup / 4.6 A nominal) are tightly coupled to maintain ±1.4% output accuracy across load and temperature.
It uses an integrated charge pump (CP/CN pins) to drive the high-side MOSFET, eliminating external bootstrap components. The device supports voltage tracking via the SS pin, output discharge through VOS (200 Ω), and precise power sequencing using EN and open-drain PG - all within a thermally optimized 16-pin VQFN with exposed AGND thermal pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion, USB, and intermediate rail inputs without external LDO pre-regulation. |
| Output Current | 3 A continuous - sustains full load with <50 mΩ high-side and <40 mΩ low-side FET on-resistance at TJ = 25°C. |
| Switching Frequency | 1.4 MHz typical - enables compact 1 µH inductor and 22 µF ceramic output capacitor solutions. |
| Feedback Reference | 0.8 V ±1% - sets output via resistor divider; enables 1.8 V @ 3 A or 3.3 V @ 3 A with <0.04%/A load regulation. |
| Quiescent Current | 20 µA in power save mode - extends battery runtime in standby without sacrificing light-load efficiency. |
| Efficiency Peak | Up to 98% at 3.7 VIN/3.3 VOUT - minimizes thermal rise in space-constrained portable designs. |
| Protection Features | Hiccup short-circuit, thermal shutdown (150°C), UVLO (2.2 V ±0.1 V), and output discharge (200 Ω) - ensures robust fault recovery without external circuitry. |
Pinout & Package
TLV62090RGTR is housed in a 3 mm × 3 mm, 16-pin VQFN (RGT) package with exposed thermal pad connected to AGND. The package supports high-density PCB layouts and efficient heat dissipation via bottom-side thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (1,2) | Power switch node | Connects to inductor; carries high di/dt switching current - requires tight layout and low-inductance path to PGND. |
| DEF (3) | Internal logic enable | Must be tied high (e.g., to AVIN); floating causes undefined operation - not user-controllable. |
| PG (4) | Open-drain power good | Signals regulation status; sinks ≤1 mA when VOUT <95% of target - requires external pull-up ≤VIN. |
| FB (5) | Feedback input | Senses output via resistor divider; 0.8 V reference enables precise VOUT setting with ±1.4% accuracy. |
| AGND (6) | Analog ground reference | Separate from PGND; connects to exposed thermal pad - critical for noise-sensitive feedback stability. |
| CP/CN (7,8) | Charge pump flying capacitor | Requires 10 nF ceramic cap between pins; generates gate drive voltage for high-side FET - no external bootstrap needed. |
| SS (9) | Softstart & tracking control | Charged at 7.5 µA; sets ramp time or accepts external voltage for ratiometric output tracking. |
| AVIN (10) | Bias supply input | Powers internal analog circuitry; must be decoupled near pin - separate from PVIN for noise isolation. |
| PVIN (11,12) | Main power input | High-current VIN path; parallel pins reduce IR drop and improve thermal performance. |
| EN (13) | Enable input | Active-high logic; internal 400 kΩ pull-down allows simple ON/OFF control with microcontroller GPIO. |
| PGND (14,15) | Power ground return | Low-impedance return for SW and FETs; must be solid copper plane with thermal vias to inner layers. |
| VOS (16) | Output voltage sense | Direct connection to VOUT; enables fast discharge (200 Ω) during shutdown - improves system reset reliability. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10 µs load transient response with <1% undershoot/overshoot while maintaining fixed-frequency PWM behavior under medium/heavy loads. |
| Integrated charge pump (CP/CN) | Eliminates need for external bootstrap capacitor and diode - reduces BOM count and layout complexity for high-side gate drive. |
| Adjustable softstart (SS pin) | Configurable start-up ramp via external capacitor; prevents inrush current and avoids false triggering of hiccup protection during cold start. |
| Output voltage tracking | SS pin accepts external voltage reference to synchronize VOUT ramp with other rails - essential for multi-rail processors and FPGAs. |
| Output discharge (VOS pin) | 200 Ω internal resistor actively discharges VOUT during disable/UVLO/thermal fault - ensures clean power-down sequence and prevents latch-up. |
| 100% duty cycle capability | Maintains regulation down to VOUT ≈ VIN − 0.1 V - supports low-dropout operation in battery end-of-life or brownout conditions. |
Applications
| Solid State Drive (SSD) Core Supply | Notebook Processor Core Rail |
|---|---|
Use Scenario: Powers NAND controller and DRAM cache in M.2 NVMe SSDs with dynamic load steps up to 2.5 A. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.2 V/3 A with <50 ns transient response and <10 mV ripple. Use Value: DCS-Control™ maintains ±1.4% output accuracy across –40°C to 85°C ambient while enabling 1 µH/22 µF compact filter design. |
Use Scenario: Supplies CPU/GPU core voltage in ultrabooks with burst loads up to 3 A and strict EMI limits. IC Role / Device Role / Timing Role: Point-of-load regulator with programmable softstart and power-good sequencing for SoC initialization. Use Value: 1.4 MHz fixed frequency avoids AM band interference; 20 µA quiescent current extends battery life in S0ix idle states. |
| Hard Disk Drive (HDD) Motor & Logic Supply | Battery-Powered Industrial Sensor Node |
Use Scenario: Dual-rail generation (3.3 V for logic, 5 V for motor driver) from shared 5 V input in 2.5" HDDs. IC Role / Device Role / Timing Role: High-efficiency buck converter with output discharge and hiccup protection to survive motor stall events. Use Value: Hiccup-mode short-circuit protection limits fault energy during head crash; VOS discharge clears residual voltage before spin-up. |
Use Scenario: Powers ultra-low-power MCU, RF transceiver, and analog sensor chain from single Li-ion cell (2.8–4.2 V). IC Role / Device Role / Timing Role: Main system regulator with power-save mode entry below 1 mA load and seamless PWM/PSM transition. Use Value: 98% peak efficiency at 3.7 VIN/3.3 VOUT maximizes runtime; 20 µA IQ extends shelf life in storage mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62090RGTR | Same pinout, 3 A rating, but higher 25 µA quiescent current and no output discharge function. | Lacks VOS pin and 200 Ω discharge path - unsuitable where controlled power-down is required. | Select TPS62090RGTR only if output discharge is unnecessary and higher IQ is acceptable. |
| TLV62095RGTR | Pin-compatible variant with enhanced hiccup protection and tighter 0.8 V ±0.5% feedback accuracy. | Improved light-load regulation and faster fault recovery - preferred for precision analog or RF subsystems. | Choose TLV62095RGTR when ±0.5% VFB accuracy or faster hiccup reset (<50 µs) is critical. |
Compared with TLV62090RGTR, TPS62090RGTR trades off output discharge and lower IQ for marginally higher cost, while TLV62095RGTR delivers tighter regulation and faster fault handling at identical footprint - making TLV62090RGTR the optimal balance of feature set, efficiency, and cost for mainstream portable power rails.
Availability
TLV62090RGTR is available at Aetrix Electronics and suitable for SSD power delivery, notebook processor core supplies, and battery-powered industrial sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV62090RGTR 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 TLV62090RGTR belongs to TI's DCS-Control™ synchronous buck converter family, engineered for space-constrained, battery-sensitive applications demanding high light-load efficiency, fast transient response, and robust fault protection without external complexity.
FAQ
What is the recommended output capacitor range for TLV62090RGTR?
The TLV62090RGTR supports output capacitors from 10 µF to over 150 µF, with 22 µF ceramic (X5R/X7R) being the standard value for 1.4 MHz operation. For output voltages below 1.2 V, TI recommends using two 22 µF capacitors in parallel to achieve ±3% regulation accuracy in power save mode. The device's DCS-Control™ loop remains stable across this full range without external compensation.
Does TLV62090RGTR require an external bootstrap capacitor?
No, TLV62090RGTR does not require an external bootstrap capacitor. It integrates a charge pump circuit with dedicated CP and CN pins that generate the high-side gate drive voltage internally. A 10 nF ceramic capacitor between CP and CN is mandatory, but no external diode or bootstrap capacitor is needed - simplifying layout and reducing BOM count compared to conventional buck controllers.
How does the softstart function work on TLV62090RGTR?
The TLV62090RGTR charges an external capacitor on the SS pin with a precise 7.5 µA current source. The feedback voltage ramps proportionally (×1.56) until reaching the 0.8 V internal reference. Softstart completes when the SS voltage reaches ~1.25 V. Leaving SS floating yields ~50 µs minimum ramp time. This controlled startup prevents inrush current and avoids false hiccup triggering during cold start with large output capacitors.
Can TLV62090RGTR operate with 100% duty cycle?
Yes, TLV62090RGTR supports 100% duty cycle operation, allowing VOUT to track closely to VIN minus small dropout (e.g., 1.8 V out at 1.9 V in). This feature is critical for maintaining regulation during battery voltage sag or low-input conditions. It is enabled automatically when the error amplifier commands maximum on-time, with no external configuration required.
What is the purpose of the VOS pin on TLV62090RGTR?
The VOS (Voltage Output Sense) pin on TLV62090RGTR provides Kelvin sensing of the output voltage and enables active discharge during shutdown. When the device disables (via EN low, UVLO, or thermal fault), a 200 Ω internal resistor connects VOS to PGND, rapidly discharging the output capacitor. This ensures predictable power-down behavior and prevents residual voltage from interfering with system reset or subsequent power-up sequences.
TLV62090RGTR 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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TLV62090RGTR FAQ
1.How can I place an order for TLV62090RGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62090RGTR 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 TLV62090RGTR reliable?
The price and inventory of TLV62090RGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62090RGTR is usually 5 days.
3.What payment methods are accepted for TLV62090RGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62090RGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62090RGTR?
TLV62090RGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62090RGTR 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 TLV62090RGTR?
For technical support, including TLV62090RGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62090RGTR requirements.
6.How does Aetrix verify that TLV62090RGTR is sourced from the original manufacturer or authorized distributors?
All TLV62090RGTR 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 TLV62090RGTR meets industry standards.
7.What is the process for return or replacement of TLV62090RGTR?
All TLV62090RGTR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62090RGTR, 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 TLV62090RGTR part is unused and in its original packaging.
Return procedure for TLV62090RGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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