My Inquiry
My Account
Texas Instruments TPS62800YKAR
- Part No.:
- TPS62800YKAR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62800YKAR.pdf
- Description:
- IC REG BUCK ADJ/0.4V 1A 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,137
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62800YKAR from Texas Instruments is a 4MHz synchronous step-down DC/DC converter optimized for ultra-low-power wearable and IoT systems, delivering 1A output current with 2.3µA quiescent current, 1% output voltage accuracy, and support for 0.4V–0.775V adjustable VOUT in 25-mV steps - deployed in battery-powered sensor nodes requiring extended runtime and sub-1mm board height.
For engineers reviewing the TPS62800YKAR datasheet, TPS62800YKAR pinout, TPS62800YKAR application, or TPS62800YKAR equivalent, this page delivers verified electrical specs, DCS-Control topology behavior, WCSP package layout guidance, R2D-based VOUT configuration, and real-world trade-offs between power-save mode efficiency and forced-PWM noise performance.
Technical Context
The TPS62800YKAR implements TI's DCS-Control topology with dual-loop regulation: an AC loop using the VOS pin enables fast transient response and low output ripple, while a DC feedback loop ensures stable regulation with minimal external components. It supports seamless PFM-to-PWM transition without output disturbance.
This device integrates a resistor-to-digital (R2D) converter on the VSEL/MODE pin to select one of 16 output voltages (0.4V–0.775V) via a single E96 1% resistor, and enters forced PWM mode when VSEL/MODE is pulled high post-startup - enabling deterministic 4MHz switching across all load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.75V to 5.5V - supports direct connection to single-cell Li-ion, 2×AA, or regulated system rails without pre-regulation. |
| Quiescent Current (IQ) | 2.3µA in power-save mode - enables >1-year battery life in always-on wearable sensors drawing ~10µA average load. |
| Switching Frequency | 4MHz nominal - allows use of 0.47µH inductors and <10µF ceramic output capacitors, reducing solution size to <5mm². |
| Output Current | 1A continuous - sufficient for powering ARM Cortex-M0+ MCUs, BLE radios, and analog front-ends simultaneously. |
| Output Voltage Accuracy | ±1% in PWM mode at 25°C - ensures reliable logic-level compliance for 0.6V–0.8V core rails in modern microcontrollers. |
| Package | 6-pin DSBGA (YKA), 1.05mm × 0.70mm, 0.35mm pitch - compatible with 0201 passives and supports <0.6mm PCB stack-up height. |
| Thermal Resistance | RθJA = 147.7°C/W - requires minimal copper area for thermal relief in space-constrained wearables. |
Pinout & Package
TPS62800YKAR uses a 6-pin, 0.35mm-pitch wafer-chip-scale package (DSBGA YKA), measuring 1.05mm × 0.70mm, designed for ultra-compact layouts with 0201-size external components and <0.6mm total board thickness.
| 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 voltage spikes and EMI. |
| VSEL/MODE (C1) | Configurable I/O | During startup: reads external resistor to set VOUT (0.4V–0.775V); after startup: selects power-save (low) or forced PWM (high) mode. |
| VOS (A2) | Output voltage sense | Connects directly to output capacitor; enables precise regulation and activates internal MOSFET discharge path when EN = low. |
| SW (B2) | Switch node | Drives external 0.47µH inductor; high dv/dt node requiring tight layout and minimal trace length to reduce EMI and switching losses. |
| EN (C2) | Enable control | Active-high with internal 500kΩ pulldown; rising-edge monotonicity required to prevent false enable; disables converter and activates VOS discharge. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Combines hysteretic speed and voltage-mode stability - achieves <10µs load transient recovery and <10mV undershoot with 10µF COUT. |
| R2D output voltage selection | 16 factory-trimmed VOUT options (0.4V–0.775V) set by single E96 resistor - eliminates external feedback divider and improves accuracy vs. resistor networks. |
| Output discharge via VOS pin | Internal MOSFET discharges VOUT to near 0V when disabled - prevents back-powering of downstream circuitry and ensures clean power sequencing. |
| 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 0.6V rail). |
| Smart enable with pulldown | 500kΩ internal EN pulldown prevents floating start-up - eliminates need for external pull-down resistor in space-constrained designs. |
Applications
| Wearable Health Monitor | BLE Sensor Node |
|---|---|
Use Scenario: Compact wrist-worn pulse oximeter with optical sensor, ADC, and BLE SoC operating from coin cell or thin-film battery. IC Role / Device Role / Timing Role: Primary power regulator supplying 0.6V core rail to MCU and 1.8V I/O rail to sensor interface. Use Value: 2.3µA IQ extends battery life beyond 12 months; 4MHz switching enables <5mm² solution size fitting within 12mm × 12mm PCB area. |
Use Scenario: Self-powered environmental sensor tag (temperature/humidity) transmitting data every 5 seconds via Bluetooth Low Energy. IC Role / Device Role / Timing Role: Efficient step-down converter delivering 1.2V to RF transceiver and 0.7V to ultra-low-power MCU during active transmit bursts. Use Value: Seamless PFM→PWM transition maintains >90% efficiency at 10µA sleep current and >85% at 10mA peak transmit load. |
| Industrial Wireless Node | Portable Medical Diagnostic |
Use Scenario: Battery-operated vibration sensor mounted on rotating machinery, sampling at 1kHz and transmitting via LoRaWAN gateway. IC Role / Device Role / Timing Role: Main DC/DC converter powering 3.3V analog signal chain and 1.1V digital subsystem from 3.6V primary lithium battery. Use Value: Forced PWM mode eliminates switching frequency interference with sensitive analog front-end; 1% VOUT accuracy ensures consistent ADC reference stability. |
Use Scenario: Handheld point-of-care ultrasound probe powered by rechargeable LiPo, requiring silent, low-noise power for analog beamforming circuits. IC Role / Device Role / Timing Role: Low-noise buck regulator generating 1.8V analog supply with minimal conducted EMI into sensitive receive paths. Use Value: 4MHz fixed-frequency operation avoids critical 1–10MHz band where ultrasound echo signals reside; WCSP package minimizes parasitic inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62801YKAR | Fixed 1.2V output or 0.8V–1.55V selectable range; same 4MHz/1A/2.3µA spec but different VOUT mapping. | Used where 1.2V rail is required for standard I/O interfaces (e.g., SDIO, SPI) rather than sub-1V core supplies. | Select TPS62801YKAR when fixed 1.2V or higher VOUT is needed; pinout and layout identical to TPS62800YKAR. |
| TPS62806YKAR | 1.5MHz switching, 0.6A output, same 0.4V–0.775V VOUT range; higher RDS(ON), lower IQ in shutdown (120nA vs. 250nA). | Suitable for cost-sensitive, lower-performance wearables where EMI filtering is less critical and peak current <0.6A suffices. | Choose TPS62806YKAR only if 1.5MHz operation and reduced output current meet system requirements; not drop-in for 1A loads. |
Compared with TPS62801YKAR and TPS62806YKAR, the TPS62800YKAR uniquely supports the lowest VOUT range (0.4V–0.775V) at full 1A/4MHz capability - making it the sole option for advanced sub-0.8V processor cores while maintaining ultra-low IQ and minimal footprint.
Availability
TPS62800YKAR is available at Aetrix Electronics and suitable for wearable electronics, IoT edge sensors, and portable medical devices requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS62800YKAR 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 over 50 years of innovation in energy-efficient IC design.
The TPS6280x family was engineered specifically for space- and power-constrained battery-operated devices - prioritizing ultra-low IQ, minimal solution size, and flexible output configuration without sacrificing regulation accuracy or transient performance.
FAQ
What is the minimum input voltage required for TPS62800YKAR to operate?
The TPS62800YKAR has an undervoltage lockout (UVLO) threshold of 1.75V (rising) and 1.7V (falling). It begins regulation only when VIN rises above 1.75V and shuts down if VIN falls below 1.7V. This allows reliable operation from partially discharged 2×AA alkaline cells (down to ~1.8V under load) and single-cell Li-ion batteries above 2.5V.
How does the R2D converter on the VSEL/MODE pin determine output voltage in TPS62800YKAR?
The TPS62800YKAR's R2D converter applies a precision current source to the external resistor (RVSEL) connected between VSEL/MODE and GND during startup delay (tStartup_delay). The resulting voltage is digitized to select one of 16 internal feedback dividers - setting VOUT from 0.4V to 0.775V in 25-mV steps. No resistor is needed for the fixed 0.7V option (VSEL/MODE = GND).
Can TPS62800YKAR be used in forced PWM mode, and how is it enabled?
Yes - after TPS62800YKAR completes startup and VOUT ramps up, pulling the VSEL/MODE pin high (≥0.8V) switches the device from power-save (PFM) to forced PWM mode. This fixes the switching frequency at 4MHz across all load currents, reducing EMI but increasing light-load IQ to ~8mA. Mode change is dynamic and reversible.
What is the purpose of the VOS pin on TPS62800YKAR, and how must it be connected?
The VOS pin on TPS62800YKAR serves two functions: (1) it provides the feedback node for the internal regulation loop, and (2) it activates an internal discharge MOSFET when EN = low. It must be connected directly to the output capacitor's positive terminal with the shortest possible trace - no resistors or filters - to ensure accurate sensing and effective VOUT discharge to near 0V.
Does TPS62800YKAR support 100% duty cycle operation, and under what conditions?
Yes - the TPS62800YKAR supports 100% duty cycle operation when VIN approaches VOUT, maintaining regulation without dropout. This occurs automatically when VIN ≤ VOUT / 0.95 (e.g., sustaining 0.6V output down to ~0.63V input), extending usable battery life in single-cell Li-ion applications where voltage declines below the nominal 3.0V.
TPS62800YKAR 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:
- 1A
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA (1.05x0.70)
TPS62800YKAR FAQ
1.How can I place an order for TPS62800YKAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62800YKAR 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 TPS62800YKAR reliable?
The price and inventory of TPS62800YKAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62800YKAR is usually 5 days.
3.What payment methods are accepted for TPS62800YKAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62800YKAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62800YKAR?
TPS62800YKAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62800YKAR 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 TPS62800YKAR?
For technical support, including TPS62800YKAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62800YKAR requirements.
6.How does Aetrix verify that TPS62800YKAR is sourced from the original manufacturer or authorized distributors?
All TPS62800YKAR 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 TPS62800YKAR meets industry standards.
7.What is the process for return or replacement of TPS62800YKAR?
All TPS62800YKAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62800YKAR, 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 TPS62800YKAR part is unused and in its original packaging.
Return procedure for TPS62800YKAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62800YKAR 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…
