My Inquiry
My Account
Texas Instruments TPS62086RLTR
- Part No.:
- TPS62086RLTR
- Manufacturer:
- Texas Instruments
- Package:
- 7-VFDFN
- Datasheet:
-
TPS62086RLTR.pdf
- Description:
- IC REG BUCK 3.3V 3A 7VSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,126
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62086RLTR from Texas Instruments is a 3-A synchronous step-down DC/DC converter with fixed 3.3-V output, DCS-Control™ topology, hiccup short-circuit protection, and 2.5-V to 6.0-V input range. It delivers up to 95% efficiency at 3 A, operates in Power Save Mode for light-load efficiency, and supports 100% duty cycle for ultra-low dropout-ideal for battery-powered point-of-load regulation in portable industrial sensors.
For engineers reviewing the TPS62086RLTR datasheet, TPS62086RLTR pinout, TPS62086RLTR application, or TPS62086RLTR equivalent, key selection considerations include its 2-mm × 2-mm VSON-7 package, 17-μA quiescent current, 2.4-MHz PWM switching frequency, power good (PG) open-drain output, and integrated output discharge function.
Technical Context
The TPS62086RLTR implements DCS-Control™ architecture, combining voltage-mode control with seamless transition between PWM and Power Save Mode (PSM) without output voltage disturbance. Its fixed 3.3-V output eliminates external feedback resistors, reducing BOM count and layout area.
It features hiccup-mode short-circuit protection triggered after 32 overcurrent events, thermal shutdown at 150°C with 20°C hysteresis, undervoltage lockout at 2.2 V (±0.1 V), and internal soft-start with 0.8-ms ramp time. The 260-Ω output discharge resistor enables controlled shutdown when EN is low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.3 V ±1.0% (PWM mode, 1 A load) |
| Input voltage range | 2.5 V to 6.0 V - supports single-cell Li-ion, Li-polymer, and 3.3-V/5-V rails |
| Max output current | 3 A continuous - enables compact high-current POL for microcontrollers and FPGAs |
| Quiescent current | 17 μA - maintains >85% efficiency at 100-μA loads for battery longevity |
| Switching frequency | 2.4 MHz nominal - allows use of small 0.47-μH inductors and 22-μF ceramic capacitors |
| Package | VSON-7 (2 mm × 2 mm, 0.5-mm pitch) - thermally enhanced for 107.8°C/W junction-to-ambient |
| Protection features | Hiccup short-circuit, thermal shutdown (150°C), UVLO (2.2 V), output discharge (260 Ω) |
Pinout & Package
VSON-7 package: 2 mm × 2 mm body, 0.5-mm lead pitch, exposed thermal pad (pin 5 = GND). Designed for high thermal performance in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Logic-high active; internal 400-kΩ pulldown ensures safe disable on floating input |
| PG (Pin 2) | Power good output | Open-drain signal asserting when VOUT ≥ 95% of 3.3 V; sinks 1 mA max |
| FB (Pin 3) | Feedback input | Internally connected to 3.3-V regulator; must be tied directly to output for stability |
| VOS (Pin 4) | Output voltage sense | Direct connection to output capacitor improves load regulation and transient response |
| GND (Pin 5) | Ground reference | Primary ground return and thermal pad connection point |
| SW (Pin 6) | Power switch node | Connects to inductor; carries high-frequency AC current and requires tight loop layout |
| VIN (Pin 7) | Input power supply | Accepts 2.5–6.0 V; requires local 10-μF ceramic capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables seamless PWM-to-PSM transition with <1% output voltage deviation during mode change |
| 100% duty cycle operation | Extends battery runtime by regulating down to VIN − VDROP ≈ 3.3 V + IOUT × RDS(on)_HS |
| Integrated output discharge | 260-Ω internal resistor discharges VOUT within milliseconds after EN deactivation |
| Power good (PG) output | Provides system-level rail sequencing capability via open-drain interface with 6-V max pullup |
| Hiccup short-circuit protection | Prevents thermal runaway by cycling off for 66 μs after 32 consecutive current-limit triggers |
Applications
| Industrial Sensor Node Power | Portable Medical Device Rail |
|---|---|
Use Scenario: Powering ultra-low-power MCU, BLE radio, and analog front-end in battery-operated environmental sensor nodes. IC Role / Device Role / Timing Role: Primary 3.3-V point-of-load regulator delivering stable 3 A peak current during RF transmission bursts. Use Value: 17-μA quiescent current extends 2× AA battery life beyond 2 years; DCS-Control ensures <20-mV load transient deviation. | Use Scenario: Supplying 3.3-V logic and analog circuitry in handheld ECG monitors with rechargeable Li-ion batteries. IC Role / Device Role / Timing Role: Main system regulator supporting dynamic load steps from sleep (100 μA) to active measurement (2.5 A). Use Value: 2.4-MHz switching enables sub-3-mm² solution size; hiccup protection prevents damage during electrode contact faults. |
| Embedded FPGA Core Supply | Hard Disk Drive (HDD) Interface Rail |
Use Scenario: Providing clean, tightly regulated 3.3-V supply to FPGA I/O banks and configuration logic in edge-computing gateways. IC Role / Device Role / Timing Role: High-efficiency buck converter with PG output synchronized to FPGA configuration sequence. Use Value: Power good assertion confirms regulation before FPGA release from reset; 95% peak efficiency reduces thermal load near logic die. | Use Scenario: Generating 3.3-V auxiliary rail for HDD SATA interface ICs and spindle motor control logic. IC Role / Device Role / Timing Role: Secondary POL regulator handling fast load transients during disk spin-up and data access. Use Value: VOS-sense pin minimizes load regulation error to <0.16%/A; 100% duty cycle sustains operation as battery drops to 3.4 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62087RLTR | Fixed 1.8-V output; identical package, pinout, and electrical specs except VOUT | Used where lower core voltage required for SoC or DSP; not interchangeable without board revision | Select TPS62087RLTR only when 1.8-V output is mandatory and FB/VOS routing matches |
| TPS62865RQFR | Higher 6-A rating, 4-MHz switching, smaller 1.5-mm × 1.5-mm QFN; requires different layout and compensation | Suitable for next-gen designs needing higher current density and faster transient response | TPS62865RQFR offers upgrade path but demands full revalidation due to different control loop and thermal profile |
Compared with TPS62086RLTR, TPS62087RLTR provides identical functionality at 1.8 V instead of 3.3 V-requiring no schematic change beyond output voltage verification-while TPS62865RQFR delivers double current capacity in a smaller footprint but mandates new layout, compensation, and thermal design.
Availability
TPS62086RLTR is available at Aetrix Electronics and suitable for battery-powered applications, point-of-load regulation, and processor supplies requiring stable component supply across industrial temperature ranges (–40°C to +125°C).
Supply support for TPS62086RLTR 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 company headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing chips for industrial, automotive, and personal electronics markets.
The TPS6208x family was developed specifically for high-efficiency, space-constrained DC/DC conversion in portable and battery-operated systems-emphasizing low IQ, hiccup protection, and seamless light-load operation.
FAQ
What is the output voltage tolerance of the TPS62086RLTR under full load?
The TPS62086RLTR delivers a fixed 3.3-V output with ±1.0% accuracy under PWM-mode conditions at 1-A load and VIN ≥ VOUT + 1 V. At zero load in Power Save Mode, output accuracy is ±2.1%, per the electrical characteristics table. This tolerance ensures reliable logic-level compatibility with 3.3-V I/O standards across temperature and line variations.
Does the TPS62086RLTR require external feedback resistors?
No, the TPS62086RLTR does not require external feedback resistors. As a fixed-output variant, its internal feedback divider sets the regulated output to 3.3 V. The FB pin must be connected directly to the output node to maintain regulation accuracy and stability-no resistor network is needed or supported.
How does the hiccup short-circuit protection work in the TPS62086RLTR?
The TPS62086RLTR enters hiccup mode after detecting 32 consecutive switch current limit events. It then disables switching for ~66 μs, discharges the output via the internal 260-Ω resistor, and attempts automatic restart. This cycle repeats until the fault clears-limiting average power dissipation and preventing thermal damage during sustained shorts.
Can the TPS62086RLTR operate with a 2.5-V input and 3.3-V output?
No-the TPS62086RLTR cannot regulate 3.3 V from a 2.5-V input because VIN must exceed VOUT by sufficient margin to overcome dropout. Minimum input is 2.5 V, but practical regulation requires VIN ≥ 3.4–3.5 V depending on load and RDS(on). The device supports 100% duty cycle only when VIN approaches VOUT; below that threshold, output collapses.
What is the purpose of the VOS pin on the TPS62086RLTR?
The VOS (voltage output sense) pin on the TPS62086RLTR provides Kelvin sensing of the output voltage at the capacitor terminals. Connecting VOS directly to the output capacitor's positive terminal improves load regulation accuracy (<0.16%/A) and enhances transient response by compensating for PCB trace resistance between the SW/GND nodes and the load.
TPS62086RLTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 7-VFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 7-VSON-HR (2x2)
TPS62086RLTR FAQ
1.How can I place an order for TPS62086RLTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62086RLTR 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 TPS62086RLTR reliable?
The price and inventory of TPS62086RLTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62086RLTR is usually 5 days.
3.What payment methods are accepted for TPS62086RLTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62086RLTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62086RLTR?
TPS62086RLTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62086RLTR 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 TPS62086RLTR?
For technical support, including TPS62086RLTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62086RLTR requirements.
6.How does Aetrix verify that TPS62086RLTR is sourced from the original manufacturer or authorized distributors?
All TPS62086RLTR 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 TPS62086RLTR meets industry standards.
7.What is the process for return or replacement of TPS62086RLTR?
All TPS62086RLTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62086RLTR, 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 TPS62086RLTR part is unused and in its original packaging.
Return procedure for TPS62086RLTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62086RLTR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
