My Inquiry
My Account
Texas Instruments TPS62087RLTR
- Part No.:
- TPS62087RLTR
- Manufacturer:
- Texas Instruments
- Package:
- 7-VFDFN
- Datasheet:
-
TPS62087RLTR.pdf
- Description:
- IC REG BUCK 1.8V 3A 7VSON
- Quantity:
- Payment:
- Shipping:
Inventory:15,995
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62087RLTR from Texas Instruments is a 3-A synchronous step-down DC/DC converter with fixed 1.8-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 at light loads, and supports 100% duty cycle for ultra-low dropout-ideal for battery-powered portable electronics requiring stable, compact power rails.
For engineers reviewing the TPS62087RLTR datasheet, TPS62087RLTR pinout, TPS62087RLTR application, or TPS62087RLTR equivalent, key selection considerations include its 2-mm × 2-mm VSON-7 package, 17-μA quiescent current, 2.4-MHz PWM switching frequency, integrated power good (PG) output, and output discharge capability during shutdown.
Technical Context
The TPS62087RLTR implements DCS-Control™ architecture-a hybrid regulation scheme combining voltage-mode stability with hysteretic-like transient response-enabling seamless transition between PWM and Power Save Mode without output voltage disturbance. Its internal compensation supports wide output capacitor ranges (10–150 µF), ensuring robust load transient performance across varying PCB layouts.
It integrates dual MOSFETs with 31-mΩ high-side and 23-mΩ low-side RDS(on), a 4.6-A switch current limit, thermal shutdown at 150°C, and undervoltage lockout with 2.2-V threshold and 200-mV hysteresis-making it suitable for thermally constrained, safety-aware embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6.0 V - supports single-cell Li-ion, Li-polymer, and 2-cell alkaline/NiMH batteries without external regulators. |
| Output Voltage | Fixed 1.8 V - eliminates external feedback resistors, reducing BOM count and layout area for processor I/O or memory rails. |
| Max Output Current | 3 A - sustains full-rated load with ≤5.5-A peak switch current limit, enabling reliable operation under dynamic CPU/GPU bursts. |
| Quiescent Current | 17 μA - minimizes standby power loss in always-on subsystems like real-time clocks or sensor hubs. |
| Switching Frequency | 2.4 MHz - allows use of sub-1-μH inductors (e.g., 0.47 μH) and small ceramic capacitors, shrinking total solution size to <25 mm². |
| Efficiency | Up to 95% - achieved at medium-to-heavy loads (e.g., 1–3 A), reducing thermal stress and extending battery runtime. |
| Power Good Output | Open-drain PG with 95% rising / 90% falling thresholds - enables precise rail sequencing and system-level fault detection without external comparators. |
| Package | VSON-7 (2.0 mm × 2.0 mm, 0.75-mm height) - thermally enhanced exposed-pad design with 17.1°C/W junction-to-board resistance for passive cooling. |
Pinout & Package
The TPS62087RLTR is housed in a thermally optimized 7-pin VSON package (2.0 mm × 2.0 mm, 0.75-mm height) with an exposed thermal pad on the bottom side for direct PCB copper connection. The pinout is validated per TI SLVSB70C datasheet Figure 6-1 and Table 6-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Active-high logic input with internal 400-kΩ pulldown; enables full converter operation when pulled ≥1.0 V, reduces VIN current to 0.7 μA in shutdown. |
| PG (Pin 2) | Power good open-drain output | Signals valid regulation (≥95% VOUT) with 1-mA sink capability; requires external pullup ≤6 V for sequencing or host monitoring. |
| FB (Pin 3) | Feedback reference node | Internally connected to 1.8-V output; must be shorted to VOUT for fixed-output operation-no external divider needed. |
| VOS (Pin 4) | Output voltage sense | Direct connection point to output capacitor's high-side terminal; enables accurate remote sensing and fast discharge path during disable. |
| GND (Pin 5) | Power and signal ground | Primary return path for high-current SW node and low-noise analog circuitry; tied to exposed thermal pad for optimal heat dissipation. |
| SW (Pin 6) | Switch node | Drives external inductor; carries high di/dt pulses up to 4.6 A peak; requires tight layout with minimal loop area to reduce EMI. |
| VIN (Pin 7) | Main input supply | Accepts 2.5–6.0 V; must be decoupled with ≥10-μF ceramic capacitor placed adjacent to pin to suppress high-frequency ripple. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10-μs load transient response with <1% output deviation using standard 22-μF X5R/X7R ceramics-no complex loop compensation required. |
| Hiccup short-circuit protection | Enters safe recovery mode after 32 overcurrent events, discharging output via 260-Ω internal path and auto-restarting after 66-μs delay-prevents thermal runaway during sustained faults. |
| 100% duty cycle operation | Maintains regulation down to VIN = VOUT + IOUT × RDS(on), extending usable battery voltage range by up to 300 mV versus conventional buck converters. |
| Output discharge function | Activates automatically during EN low, thermal shutdown, or UVLO-discharges VOUT through VOS pin to prevent back-powering or latch-up in multi-rail systems. |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction temperature and resumes only after cooling by ≥20°C-avoids oscillatory behavior during thermal overload conditions. |
| Low-noise Power Save Mode | Reduces switching frequency below 1 MHz at light loads while maintaining <2.1% output accuracy-critical for noise-sensitive RF or audio subsystems. |
Applications
| Mobile Point-of-Load Regulation | Processor Core & I/O Supply |
|---|---|
Use Scenario: Powering FPGA I/O banks or ASIC interface logic in handheld medical devices where space and battery life are critical. IC Role / Device Role / Timing Role: Primary 1.8-V point-of-load regulator delivering up to 3 A with fast transient response to handle bursty data transfers. Use Value: Compact 2-mm × 2-mm footprint and 95% peak efficiency extend battery runtime by >18% versus legacy 3-MHz buck converters at 1-A load. | Use Scenario: Supplying core voltage to ARM Cortex-M7 microcontrollers in industrial edge nodes operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Main system rail regulator with hiccup protection and PG signaling to coordinate boot sequence with MCU reset controller. Use Value: 100% duty cycle mode maintains regulation until battery drops to 1.9 V, adding ~12 minutes of operational margin before brownout. |
| Hard Disk Drive Motor Control | Battery-Powered Test Equipment |
Use Scenario: Generating clean 1.8-V bias for HDD preamplifier ICs in portable storage enclosures powered by USB-C PD sources. IC Role / Device Role / Timing Role: Low-noise, high-PSRR intermediate rail regulator isolating sensitive analog front-end from digital switching noise. Use Value: DCS-Control™ architecture achieves <5-mV output ripple with 22-μF output cap-meeting HDD vendor spec for SNR degradation <0.5 dB. | Use Scenario: Powering mixed-signal data acquisition modules in handheld oscilloscopes with active battery monitoring and sleep modes. IC Role / Device Role / Timing Role: Always-on auxiliary rail providing regulated 1.8 V to RTC, EEPROM, and wake-up comparators during deep-sleep states. Use Value: 17-μA quiescent current limits annual battery drain to <150 μAh-enabling 5+ years of shelf life on CR2032 coin cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62086RLTR | Fixed 3.3-V output; identical package, pinout, and electrical specs except VOUT and FB connection. | Used where 3.3-V logic or interface rails are required instead of 1.8 V-no redesign needed beyond output capacitor and inductor value adjustment. | Select when system requires 3.3-V supply with same size, efficiency, and protection features as TPS62087RLTR. |
| TPS62865RQYR | Higher 6-A rating, 4-MHz switching, smaller 1.5-mm × 1.5-mm QFN, but requires external compensation and lacks hiccup protection. | Suitable for higher-current applications needing faster transients, but demands more layout effort and lacks fault-recovery robustness. | Choose only if >3-A output and <1-μs transient response are mandatory-and hiccup protection is not required for the target use case. |
Compared with TPS62086RLTR, the TPS62087RLTR provides lower output voltage for modern low-power logic, while TPS62865RQYR trades hiccup protection and ease of use for higher current density-making TPS62087RLTR optimal for cost-sensitive, space-constrained 1.8-V applications demanding field reliability.
Availability
TPS62087RLTR is available at Aetrix Electronics and suitable for battery-powered portable electronics, processor point-of-load supplies, and hard disk drive subsystems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.
Supply support for TPS62087RLTR 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 TPS6208x family was designed specifically for space-constrained, battery-operated applications requiring high efficiency across wide load ranges-from nanoamp sleep currents to multi-amp active bursts-without sacrificing protection or thermal performance.
FAQ
What is the recommended input capacitor for TPS62087RLTR?
A minimum 10-μF X7R/X5R ceramic capacitor rated for ≥6.3 V must be placed directly between VIN and GND, adjacent to the TPS62087RLTR pins. TI recommends GRM21BR71A106ME51L (Murata) for optimal high-frequency decoupling and low ESR. Larger values (e.g., 22 μF) further reduce input ripple but are not required for basic functionality. The capacitor must be mounted with shortest possible traces to minimize parasitic inductance.
Does TPS62087RLTR require an external feedback resistor network?
No. The TPS62087RLTR has a fixed 1.8-V output and internally connects the FB pin to the output regulation node. The FB pin must be shorted directly to the VOUT net-no external resistors are needed or permitted. This simplifies layout, eliminates resistor tolerance errors, and ensures guaranteed ±1.0% output accuracy across temperature and load per the datasheet specification.
How does the hiccup short-circuit protection work in TPS62087RLTR?
When the TPS62087RLTR detects 32 consecutive switch current limit events (triggered at ~4.6 A), it disables switching, activates the 260-Ω internal output discharge path via the VOS pin, and enters a 66-μs recovery delay. After this period, it attempts automatic restart. This hiccup mode prevents thermal damage during sustained shorts while allowing self-recovery once the fault clears-unlike latch-off protection that requires external reset.
Can TPS62087RLTR operate with a 2.5-V input and 1.8-V output at full 3-A load?
Yes. The TPS62087RLTR supports 100% duty cycle operation, enabling regulation at VIN = VOUT under light loads and sustaining 3-A output down to VIN ≈ 1.95 V (calculated as VOUT + IOUT × RDS(on) = 1.8 V + 3 A × 56 mΩ). At 2.5-V input, it delivers full 3-A output with >88% efficiency and meets all electrical specifications-including thermal limits-when properly heatsinked via the exposed pad.
What is the purpose of the VOS pin on TPS62087RLTR?
The VOS (Voltage Output Sense) pin on the TPS62087RLTR provides Kelvin sensing of the output voltage at the capacitor's high-side terminal, improving regulation accuracy under PCB trace resistance. It also serves as the discharge path during shutdown, thermal fault, or UVLO-activating a 260-Ω internal resistor between VOS and GND to safely bleed stored charge from the output capacitor within milliseconds.
TPS62087RLTR 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):
- 1.8V
- 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)
TPS62087RLTR FAQ
1.How can I place an order for TPS62087RLTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62087RLTR 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 TPS62087RLTR reliable?
The price and inventory of TPS62087RLTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62087RLTR is usually 5 days.
3.What payment methods are accepted for TPS62087RLTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62087RLTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62087RLTR?
TPS62087RLTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62087RLTR 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 TPS62087RLTR?
For technical support, including TPS62087RLTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62087RLTR requirements.
6.How does Aetrix verify that TPS62087RLTR is sourced from the original manufacturer or authorized distributors?
All TPS62087RLTR 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 TPS62087RLTR meets industry standards.
7.What is the process for return or replacement of TPS62087RLTR?
All TPS62087RLTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62087RLTR, 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 TPS62087RLTR part is unused and in its original packaging.
Return procedure for TPS62087RLTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62087RLTR 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…
