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Texas Instruments TPS62806YKAR
- Part No.:
- TPS62806YKAR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62806YKAR.pdf
- Description:
- IC REG BCK ADJ/0.7V 600MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,436
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Product details
Overview
TPS62806YKAR from Texas Instruments is a 1.75V–5.5V input, 0.6A synchronous step-down DC/DC converter in a 0.35mm-pitch 6-pin WCSP package, featuring 2.3µA quiescent current, 1.5MHz switching frequency, and 0.4V–0.775V selectable output voltage with ±1% accuracy in PWM mode. It delivers ultra-low power efficiency for space-constrained battery-powered wearable and IoT systems.
For engineers reviewing the TPS62806YKAR datasheet, TPS62806YKAR pinout, TPS62806YKAR application, or TPS62806YKAR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-ready availability details - all specific to the TPS62806YKAR variant.
Technical Context
The TPS62806YKAR implements TI's DCS-Control topology with dual-loop regulation: an AC loop using the VOS pin for fast transient response and low ripple, and a DC feedback loop for precise load regulation. Its R2D (resistor-to-digital) converter reads a single external resistor on the VSEL/MODE pin to select one of 16 output voltages within 0.4V–0.775V (25mV steps), or defaults to 0.7V when tied to GND.
It supports seamless transition between power save (PFM) mode at light loads (2.3µA IQ) and forced PWM mode (1.5MHz fixed frequency) via VSEL/MODE pin control after startup. Thermal shutdown (160°C) and cycle-by-cycle overcurrent protection on both high-side (1.1A typ) and low-side (1.0A typ) MOSFETs ensure robust operation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.75V to 5.5V - supports single-cell Li-ion, 2×AA, or 3.3V/5V rail inputs without external LDO pre-regulation. |
| Output Current | 0.6A - sufficient for low-power microcontrollers, sensors, and BLE radios in wearables and edge nodes. |
| Quiescent Current | 2.3µA in power save mode - enables multi-year battery life in always-on sensor nodes with µA-level average load. |
| Switching Frequency | 1.5MHz (PWM mode) - allows use of sub-1µH inductors (0.7–1.2µH recommended) and <10µF ceramic output capacitors. |
| Output Voltage Accuracy | ±1% (PWM mode, 25°C–85°C) - eliminates need for post-regulation trimming in precision analog or RF bias rails. |
| Package | 6-pin YKA WCSP (1.05mm × 0.70mm, 0.35mm pitch) - fits <5mm² PCB area and <0.6mm height stackups for ultra-thin devices. |
| Thermal Resistance | RθJA = 147.7°C/W - requires minimal copper pour for thermal management in sealed enclosures or flexible PCBs. |
Pinout & Package
TPS62806YKAR uses a 6-pin DSBGA (WCSP) package designated YKA, measuring 1.05mm × 0.70mm with 0.35mm pitch. The package supports <0.6mm board height and <5mm² solution size, optimized for 0201 passive placement and ultra-compact wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (A1) | Power ground | Must be connected directly to input/output capacitor ground pads; serves as reference for internal feedback and discharge circuitry. |
| VIN (B1) | Input power supply | Accepts 1.75V–5.5V; requires local 4.7µF ceramic capacitor placed adjacent to minimize noise and voltage spikes. |
| VSEL/MODE (C1) | Configurable I/O | During startup: sets output voltage via external resistor (0.4V–0.775V); after startup: selects PFM (low) or forced PWM (high) mode. |
| VOS (A2) | Output voltage sense | Connects directly to output capacitor; enables internal feedback regulation and activates output discharge MOSFET when EN = low. |
| SW (B2) | Switch node | Drives external inductor; requires short, low-inductance trace to minimize EMI and switching losses; rated for 1.2A peak current. |
| EN (C2) | Enable control | Active-high with internal 500kΩ pulldown; enables device when >0.8V; disables converter and activates VOS discharge when <0.4V. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Combines fast transient response (<10µs load step recovery) and low output ripple (<10mVpp) while maintaining high efficiency across 1µA–600mA load range. |
| R2D converter with 16-step VOUT selection | Enables precise, resistor-programmed output voltage (0.4V–0.775V in 25mV steps) without external feedback resistors - reducing BOM count and layout area. |
| Smart enable with internal pulldown | 500kΩ internal EN pulldown prevents floating start-up; pulldown disconnects after power-up to avoid leakage during active operation. |
| Output discharge via VOS pin | Internal MOSFET discharges VOUT to near 0V when disabled - critical for safe power sequencing and preventing back-powering of upstream circuits. |
| 100% duty cycle operation | Maintains regulation down to VIN ≈ VOUT + 0.1V - extends usable battery range in single-cell Li-ion applications (e.g., 3.0V cutoff at 0.7V output). |
Applications
| Wearable Health Monitor | BLE Sensor Node |
|---|---|
Use Scenario: Compact wrist-worn pulse oximeter with optical sensor, MCU, and Bluetooth LE radio operating from coin cell or rechargeable LiPo. IC Role / Device Role / Timing Role: Primary power regulator supplying 0.7V to ultra-low-power MCU core and 1.2V (via secondary regulator) to analog front-end. Use Value: 2.3µA quiescent current extends battery life beyond 12 months; 1.05mm × 0.70mm footprint enables integration into <100mm² PCB area. |
Use Scenario: Battery-powered environmental sensor (temperature/humidity) transmitting data every 5 seconds via nRF52840 SoC. IC Role / Device Role / Timing Role: Main DC/DC converter powering SoC VDDCORE and peripheral I/O domains from 2×AA alkaline cells (1.8V–3.2V). Use Value: 1.5MHz fixed-frequency PWM mode eliminates switching noise interference with 2.4GHz RF reception; ±1% VOUT accuracy ensures stable ADC reference. |
| Industrial Wireless Transmitter | Smart Medical Patch |
Use Scenario: Encapsulated LoRaWAN node deployed in remote locations, powered by primary lithium thionyl chloride battery (3.6V). IC Role / Device Role / Timing Role: Efficient step-down regulator delivering 0.7V to ARM Cortex-M0+ MCU and 3.3V (via charge pump) to RF transceiver. Use Value: 147.7°C/W RθJA allows reliable operation at 85°C ambient without heatsink; UVLO (1.75V) prevents brownout during cold-temperature battery discharge. |
Use Scenario: Disposable ECG patch with ASIC, electrode interface, and Bluetooth LE, requiring <0.6mm total thickness and multi-week runtime. IC Role / Device Role / Timing Role: Single-chip power solution converting 3.0V LiPo to 0.7V core supply and enabling controlled VOUT ramp-down during shutdown. Use Value: Output discharge via VOS pin ensures safe electrode bias removal before patient removal; WCSP package meets flex-PCB bend radius requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62807YKAR | Same 6-pin WCSP package and 0.35mm pitch, but 1.2V fixed/0.8V–1.55V selectable output; 0.6A rating; 1.5MHz fSW. | Targets 1.2V digital rails (e.g., Cortex-M0+ I/O, BLE radio VDDIO) instead of sub-1V core supplies. | Select TPS62807YKAR when system requires 1.2V output without external resistor; otherwise TPS62806YKAR offers finer 25mV granularity in 0.4V–0.775V range. |
| TPS62860YKAR | Same YKA WCSP package, 0.6A rating, and 2.3µA IQ, but supports 0.6V–3.3V output (100mV steps) and 4MHz fSW. | Designed for higher-VOUT applications (e.g., 1.8V/2.5V/3.3V peripherals) with faster transient response due to 4MHz switching. | Choose TPS62860YKAR for 1.8V+ rails where 4MHz enables smaller inductors; TPS62806YKAR remains optimal for <0.8V core supplies with lowest possible solution size. |
Compared with TPS62807YKAR and TPS62860YKAR, the TPS62806YKAR uniquely delivers the narrowest 0.4V–0.775V output range with 25mV resolution in the smallest WCSP footprint - making it the only choice for ultra-low-voltage, ultra-compact core regulation where 100mV or 50mV steps would compromise system efficiency or timing margins.
Availability
TPS62806YKAR is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor nodes, and medical patches requiring stable component supply, long-lifecycle support, and consistent wafer-lot traceability.
Supply support for TPS62806YKAR 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 and ultra-low-power system design.
The TPS6280x product line was engineered specifically for space- and energy-constrained battery-powered applications - delivering industry-leading quiescent current, minimal PCB footprint, and intelligent mode control in wafer-level chip-scale packages.
FAQ
What is the exact output voltage range supported by the TPS62806YKAR?
The TPS62806YKAR supports a fixed 0.7V output when the VSEL/MODE pin is connected to GND, or 16 selectable voltages from 0.4V to 0.775V in 25mV increments using an external E96-series resistor (10kΩ–249kΩ). This range is exclusive to the TPS62806/TPS62800 variants and does not overlap with TPS62801 or TPS62807 outputs.
Does the TPS62806YKAR require external feedback resistors to set its output voltage?
No. The TPS62806YKAR uses an integrated R2D (resistor-to-digital) converter that reads a single external resistor connected between VSEL/MODE and GND. This eliminates traditional feedback dividers, reduces component count, and improves output voltage accuracy compared to resistor-based networks - all while retaining full programmability of the TPS62806YKAR output.
How does the TPS62806YKAR achieve 2.3µA quiescent current?
The TPS62806YKAR achieves 2.3µA IQ through ultra-low-power circuit design: an optimized DCS-Control architecture that enters deep-sleep PFM mode at light loads, an integrated high-impedance internal feedback divider, and a dedicated low-power voltage reference. This specification is measured under defined conditions (VIN=3.6V, VOUT=1.2V, no switching) and is validated across –40°C to +85°C.
Can the TPS62806YKAR operate with input voltage as low as 1.75V?
Yes. The TPS62806YKAR has a guaranteed minimum input voltage of 1.75V per its absolute maximum and recommended operating conditions. Its undervoltage lockout (UVLO) releases at 1.75V (rising VIN) and re-engages at 1.7V (falling VIN), enabling reliable startup and regulation from nearly depleted 2×AA alkaline or single-cell Li-ion batteries - a key capability confirmed in the TPS62806YKAR datasheet Section 6.3.
What is the purpose of the VOS pin on the TPS62806YKAR?
The VOS pin on the TPS62806YKAR serves two critical functions: (1) it connects directly to the output capacitor to provide precise voltage sensing for the internal feedback loop, and (2) it activates an internal discharge MOSFET to safely ramp down VOUT when EN is pulled low - ensuring controlled power-down and preventing back-powering of connected circuitry. Both functions are integral to the TPS62806YKAR's operation.
TPS62806YKAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.4V (0.7V)
- Voltage - Output (Max):
- 0.775V
- Current - Output:
- 600mA
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA (1.05x0.70)
TPS62806YKAR FAQ
1.How can I place an order for TPS62806YKAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62806YKAR 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 TPS62806YKAR reliable?
The price and inventory of TPS62806YKAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62806YKAR is usually 5 days.
3.What payment methods are accepted for TPS62806YKAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62806YKAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62806YKAR?
TPS62806YKAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62806YKAR 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 TPS62806YKAR?
For technical support, including TPS62806YKAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62806YKAR requirements.
6.How does Aetrix verify that TPS62806YKAR is sourced from the original manufacturer or authorized distributors?
All TPS62806YKAR 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 TPS62806YKAR meets industry standards.
7.What is the process for return or replacement of TPS62806YKAR?
All TPS62806YKAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62806YKAR, 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 TPS62806YKAR part is unused and in its original packaging.
Return procedure for TPS62806YKAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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