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Texas Instruments TPS7A1008PYKAR
- Part No.:
- TPS7A1008PYKAR
- Manufacturer:
- Texas Instruments
- Package:
- 5-XFBGA, DSBGA
- Datasheet:
-
TPS7A1008PYKAR.pdf
- Description:
- IC REG LINEAR 0.8V 300MA 5DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,768
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Product details
Overview
TPS7A1008PYKAR from Texas Instruments is a 300-mA, ultra-low-dropout linear regulator (LDO) with dual-rail operation (VIN and VBIAS), fixed 0.8-V output, 0.75-V minimum input voltage, 70-mV max dropout at 300 mA (YKA package), and ±1.5% output accuracy over –40°C to +125°C. It powers core rails in space-constrained, battery-powered devices such as smart wearables and camera modules.
For engineers reviewing the TPS7A1008PYKAR datasheet, TPS7A1008PYKAR pinout, TPS7A1008PYKAR application, or TPS7A1008PYKAR equivalent, key selection criteria include ultra-low VIN support (down to 0.75 V), bias-rail efficiency optimization (VBIAS = 1.7–5.5 V), active output discharge capability, and DSBGA-5 (YKA) package compatibility with sub-1-mm² layouts.
Technical Context
The TPS7A1008PYKAR uses a dual-supply architecture: VIN supplies the pass element while VBIAS powers internal control circuitry, enabling stable regulation even when VIN is only 70 mV above VOUT. Its global UVLO requires both VIN > 675 mV (rising) and VBIAS > 1.54 V (rising) before enabling regulation.
It integrates a monotonic soft-start, thermal shutdown (160°C trip), and - in the P-version (denoted by 'P' in YKAR suffix) - an active pulldown resistor (120 Ω) for controlled output discharge. PSRR reaches 60 dB at 1 kHz under both VIN and VBIAS inputs, supporting noise-sensitive analog and RF loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.8 V ±1.5% over load, line, and temperature - ensures stable core supply for low-voltage MCUs and sensors. |
| Max Output Current | 300 mA continuous - supports high-transient digital loads like image sensors and Bluetooth SoCs. |
| VIN Dropout (300 mA) | 70 mV maximum (YKA package) - minimizes power loss and extends battery runtime in Li-ion/Li-poly systems. |
| VIN Operating Range | 0.75 V to 3.3 V - enables direct connection to buck converter outputs or partially discharged batteries. |
| VBIAS Range | 1.7 V to 5.5 V - decouples control logic power from low-VIN path, improving efficiency in LILO (low-input, low-output) designs. |
| Quiescent Current | 1.6 µA (VIN) + 6 µA (VBIAS) typical - reduces no-load current draw critical for multi-week standby in wearables. |
| PSRR @ 1 kHz | 60 dB (VIN and VBIAS) - suppresses switching noise from upstream DC/DC converters feeding sensitive analog circuits. |
Pinout & Package
TPS7A1008PYKAR is packaged in a 0.74-mm × 1.09-mm, 0.35-mm pitch, 5-pin DSBGA (YKA) package - optimized for ultra-dense portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main power input | Connects to low-voltage source (e.g., buck output); must be bypassed with ≥2.2 µF ceramic capacitor close to pin. |
| OUT | Regulated output | Delivers stable 0.8 V; requires ≥2.2 µF output capacitance (up to 22 µF recommended) for stability and transient response. |
| GND | Ground reference | Common return path for IN, OUT, BIAS, and EN; must be low-impedance connection to system ground plane. |
| BIAS | Bias supply input | Powers internal LDO control circuitry; enables operation when VIN is near VOUT; bypass with ≥0.1 µF capacitor. |
| EN | Enable control input | Active-high logic input (VIH = 0.9 V min); tie to VIN or VBIAS if always-on; drives low to activate active discharge (P-version). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail architecture (VIN + VBIAS) | Enables efficient 0.8-V output from sub-1-V sources (e.g., 0.87-V buck output) without compromising control circuit performance. |
| Ultra-low 70-mV dropout (300 mA) | Reduces conduction loss by >50% vs. conventional LDOs, directly extending battery life in 300-mA peak-load applications. |
| Active output discharge (P-version) | 120-Ω internal pulldown discharges COUT rapidly on disable - prevents floating outputs and ensures known reset state in sequenced power systems. |
| 1.5% total output accuracy | Guarantees compliance with tight core-voltage tolerances of modern ARM Cortex-M and RISC-V microcontrollers. |
| 60-dB PSRR at 1 kHz | Attenuates ripple from switching regulators, eliminating need for additional LC filtering in compact RF/wearable designs. |
Applications
| Smart Wearables | Camera Sensor Power |
|---|---|
|
Use Scenario: Powering ultra-low-voltage cores (e.g., 0.8-V ARM Cortex-M4F) in fitness trackers with coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Primary core LDO delivering regulated 0.8 V with <1.6 µA VIN IQ to maximize weeks-long standby time. Use Value: Enables direct use of buck converter residual output (e.g., 0.87 V) without intermediate boost stage, reducing BoM count and board area. |
Use Scenario: Supplying image sensor analog and digital rails in smartphone front cameras where space and EMI are critical. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO providing clean 0.8-V AVDD for CIS pixel arrays and timing-critical ADC interfaces. Use Value: 60-dB PSRR at 1 kHz suppresses switching noise from nearby PMICs, preventing image banding and SNR degradation. |
| Wireless Earbuds | Portable Medical Sensors |
|
Use Scenario: Regulating DSP and Bluetooth LE SoC core voltage in earbud PCBs with <30-mm² real estate. IC Role / Device Role / Timing Role: Space-optimized DSBGA-5 LDO supplying 0.8 V with monotonic startup to prevent brownout resets during rapid charge/discharge cycles. Use Value: 0.74-mm × 1.09-mm footprint saves >40% area vs. WSON-6 alternatives, enabling smaller battery or larger antenna clearance. |
Use Scenario: Powering ultra-low-power biosensor ASICs (e.g., ECG/PPG front-ends) in disposable patch monitors. IC Role / Device Role / Timing Role: Precision LDO maintaining ±1.5% VOUT across –20°C to +50°C body-worn temperature range. Use Value: Guaranteed accuracy eliminates need for external calibration, reducing firmware complexity and production test time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A1108PYKAR | Same YKA package, identical 0.8-V output, but adds integrated power-good (PG) signal and tighter 1.0% accuracy. | Required where system-level fault detection or tighter voltage tolerance is mandated (e.g., medical certification). | Select TPS7A1108PYKAR if PG monitoring or <1.0% accuracy is needed; otherwise, TPS7A1008PYKAR offers lower cost and same footprint. |
| NCP163AMX080TBG | Single-rail (no VBIAS), 300-mA, 0.8-V fixed output, 120-mV dropout (300 mA), SOT-563 package (1.6 × 1.6 mm). | Lacks LILO capability; unsuitable for VIN < 0.92 V; larger footprint limits ultra-compact designs. | Choose NCP163AMX080TBG only if VBIAS rail is unavailable and board area permits SOT-563; not drop-in compatible due to pinout and architecture differences. |
Compared with TPS7A1108PYKAR, TPS7A1008PYKAR trades PG functionality and tighter accuracy for lower unit cost and identical integration level; compared with NCP163AMX080TBG, it delivers 42% lower dropout and 65% smaller footprint but requires a second bias supply rail.
Availability
TPS7A1008PYKAR is available at Aetrix Electronics and suitable for smart wearables, wireless earbuds, and portable medical sensors requiring stable component supply, long-lifecycle availability, and guaranteed TI production status.
Supply support for TPS7A1008PYKAR 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 connectivity technologies, with decades of LDO design expertise and automotive-grade reliability validation.
The TPS7A10 family was engineered for ultra-low-power, space-constrained battery-operated systems - specifically targeting LILO (low-input, low-output) applications where traditional LDOs fail due to insufficient headroom.
FAQ
What is the minimum input voltage required for TPS7A1008PYKAR to regulate 0.8 V?
The TPS7A1008PYKAR supports a minimum input voltage of 0.75 V, enabling operation with only 70 mV headroom above its 0.8-V output. This is achieved via its dual-rail architecture: VIN supplies the pass device while VBIAS (1.7–5.5 V) powers internal circuitry. The device remains functional even when VIN drops below the bandgap reference, making it ideal for deeply discharged battery scenarios.
Does TPS7A1008PYKAR require an external pull-up on the EN pin?
No, the EN pin of TPS7A1008PYKAR does not require an external pull-up. It is internally biased and functions as an active-high enable with VIH ≥ 0.9 V and VIL ≤ 0.4 V. If always-on operation is desired, EN may be directly tied to VIN (provided VIN ≥ 0.9 V) or to VBIAS. Driving EN low activates active output discharge in the P-version (confirmed by 'P' in TPS7A1008PYKAR).
Can TPS7A1008PYKAR operate without the VBIAS supply?
No - TPS7A1008PYKAR requires both VIN and VBIAS to be within specification for normal operation. The VBIAS rail (1.7–5.5 V) powers the internal control circuitry, including error amplifier and reference. Omitting VBIAS prevents regulation regardless of VIN level. Global UVLO ensures both rails meet thresholds (VIN > 675 mV, VBIAS > 1.54 V) before enabling output.
What is the purpose of the BIAS pin on TPS7A1008PYKAR?
The BIAS pin on TPS7A1008PYKAR separates power delivery for the pass transistor (VIN) from control circuitry (VBIAS), enabling high efficiency in low-VIN, low-VOUT applications. By using a higher, stable VBIAS rail (e.g., battery or PMIC backup), the LDO maintains fast transient response and low IQ even when VIN approaches VOUT - a capability absent in single-rail LDOs.
Is TPS7A1008PYKAR pin-compatible with other TPS7A10 variants?
Yes - all TPS7A10 YKA-package variants (including TPS7A1008PYKAR, TPS7A1010PYKAR, etc.) share identical 5-pin DSBGA pinout and footprint. Output voltage is set internally; no external resistors are used. This allows voltage-scaling flexibility within the same PCB layout, provided VBIAS and capacitor requirements remain compliant.
TPS7A1008PYKAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.3V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.07V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 2.6 µA
- Current - Supply (Max):
- 9 µA
- PSRR:
- 60dB ~ 35dB (1kHz ~ 1.5MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DSBGA
TPS7A1008PYKAR FAQ
1.How can I place an order for TPS7A1008PYKAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A1008PYKAR 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 TPS7A1008PYKAR reliable?
The price and inventory of TPS7A1008PYKAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A1008PYKAR is usually 5 days.
3.What payment methods are accepted for TPS7A1008PYKAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A1008PYKAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A1008PYKAR?
TPS7A1008PYKAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A1008PYKAR 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 TPS7A1008PYKAR?
For technical support, including TPS7A1008PYKAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A1008PYKAR requirements.
6.How does Aetrix verify that TPS7A1008PYKAR is sourced from the original manufacturer or authorized distributors?
All TPS7A1008PYKAR 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 TPS7A1008PYKAR meets industry standards.
7.What is the process for return or replacement of TPS7A1008PYKAR?
All TPS7A1008PYKAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A1008PYKAR, 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 TPS7A1008PYKAR part is unused and in its original packaging.
Return procedure for TPS7A1008PYKAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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