My Inquiry
My Account
Texas Instruments TPS7A20C285PYCKR
- Part No.:
- TPS7A20C285PYCKR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XFBGA, DSBGA
- Datasheet:
-
TPS7A20C285PYCKR.pdf
- Description:
- 300MA, ULTRA-LOW-NOISE LOW-IQ HI
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS7A20C285PYCKR from Texas Instruments is a 300mA, low-noise, fast-settling LDO linear regulator in a 0.616mm × 0.616mm DSBGA package, delivering 2.85V output with ±1.5% tolerance, 7μVRMS noise (no bypass cap required), and 140mV dropout at 300mA - optimized for powering image sensors and other noise-sensitive analog/RF loads in space-constrained portable systems.
For engineers reviewing the TPS7A20C285PYCKR datasheet, TPS7A20C285PYCKR pinout, TPS7A20C285PYCKR application, or TPS7A20C285PYCKR equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The TPS7A20C285PYCKR employs a precision bandgap reference and error amplifier architecture to achieve ±1.5% output accuracy over load, line, and temperature (–40°C to +125°C). Its internal RC noise filter (–3dB at ~0.1Hz) enables ultra-low 7μVRMS output noise without external bypass capacitors.
It integrates smart enable logic with a 500kΩ internal pulldown resistor, ensuring default disable when EN floats, and supports fast transient response via stable operation with only 0.75µF minimum ceramic output capacitance and low-ESL layout (<2.5nH).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 300mA max - sufficient for image sensor biasing and RF front-end power without thermal derating in compact layouts |
| Output voltage | Fixed 2.85V - matches common analog supply rails for CMOS image sensors and ADC reference buffers |
| Output noise | 7μVRMS (10Hz–100kHz) - eliminates need for noise-bypass capacitor, reducing BOM count and PCB area |
| PSRR | 58dB at 100kHz - suppresses high-frequency switching noise from upstream DC/DC converters |
| Quiescent current | 11μA typical - extends battery life in always-on wearable and IoT edge nodes |
| Dropout voltage | 140mV max at 300mA (VOUT = 3.3V); 130mV at 300mA (VOUT = 2.85V) - enables operation from single-cell Li-ion or 3.3V rail with margin |
| Input voltage range | 1.6V to 6.0V - compatible with wide-input buck regulators and direct connection to 3.3V/5V system rails |
Pinout & Package
TPS7A20C285PYCKR uses the YCK 4-pin DSBGA package (0.616mm × 0.616mm, 0.4mm pitch), designed for ultra-dense portable applications. The bottom-side ball layout supports automated assembly and minimal trace inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (IN) | Input supply | Accepts 1.6V–6.0V input; requires ≥1µF ceramic capacitor placed adjacent to IN/GND for stability and transient suppression |
| A2 (OUT) | Regulated output | Delivers fixed 2.85V; stable with 0.75µF–10µF ceramic output capacitor; includes active discharge path (285Ω typical) when disabled |
| B1 (EN) | Enable control | Active-high logic; 0.9V min HI threshold, 0.3V max LO threshold; internal 500kΩ pulldown ensures safe default-off state |
| B2 (GND) | Ground reference | Common return for input, output, and enable circuits; must be connected to low-impedance system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise without bypass cap | 7μVRMS output noise achieved via integrated RC filter - removes need for dedicated 10nF–100nF noise-bypass capacitor |
| Smart enable with pulldown | 500kΩ internal EN pulldown resistor eliminates external pull-down component and prevents floating-enable faults |
| Fast load transient settling | Stable with 0.75µF output cap and <2.5nH ESL - achieves sub-5µs recovery from 300mA load steps |
| Low dropout at full load | 130mV dropout at 300mA (2.85V output) - enables >95% efficiency from 3.0V input, critical for battery runtime |
| Thermal shutdown protection | 165°C trip / 140°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking |
Applications
| Image Sensor Power | Smartphone Camera Module |
|---|---|
Use Scenario: Powers CMOS image sensor analog supply (AVDD) in mobile camera modules where EMI and ripple directly degrade SNR and dynamic range. IC Role / Device Role / Timing Role: Low-noise LDO providing clean 2.85V bias to sensor pixel array and analog front-end, replacing noisier switching supplies. Use Value: 7μVRMS noise and 58dB PSRR at 100kHz prevent switching artifacts in captured images; 0.616mm² footprint saves space in stacked camera modules. | Use Scenario: Supplies 2.85V to ISP (image signal processor) I/O or memory interface in smartphone mainboard designs with strict height and thermal constraints. IC Role / Device Role / Timing Role: Point-of-load regulator delivering stable voltage during burst-mode ISP operation with rapid current transients. Use Value: Fast 1.15ms startup and sub-5µs load transient recovery maintain timing integrity during frame capture; 11μA IQ extends standby battery life. |
| IP Network Camera | Portable Medical Imaging |
Use Scenario: Powers image sensor and video encoder ASIC in PoE-powered IP cameras where input ripple from DC/DC converters must not modulate video output. IC Role / Device Role / Timing Role: Post-regulator filtering stage after isolated 12V-to-3.3V conversion, rejecting high-frequency switching noise before analog signal chain. Use Value: 95dB PSRR at 100Hz and 58dB at 100kHz suppresses PoE switcher noise; 0.75µF min COUT simplifies layout on constrained 2-layer PCBs. | Use Scenario: Supplies analog front-end of handheld ultrasound or pulse oximeter sensors requiring ultra-low noise and guaranteed start-up under weak battery conditions. IC Role / Device Role / Timing Role: Primary analog rail regulator enabling accurate low-level signal amplification and digitization without added noise floor. Use Value: 1.6V min VIN allows operation down to nearly-dead Li-ion cells (2.8V pack); ±1.5% output tolerance ensures consistent ADC reference scaling across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A20285PYCKR | Same silicon die, identical electrical specs, identical YCK package - only ordering suffix differs (C vs no-C variant; both are production-grade) | No functional difference; both qualified for same industrial temp range (–40°C to +125°C) and supported by same TI documentation | Select TPS7A20285PYCKR only if legacy BOM references that exact part number; TPS7A20C285PYCKR is TI's current recommended orderable part |
| MCP1703T-285I/TT | Higher 25μVRMS noise, 250mV dropout at 250mA, 3.5μA IQ, 6V max VIN - lacks smart enable pulldown and active discharge | Suitable for cost-sensitive industrial sensors but not for noise-critical image capture; requires external EN pull-down and larger output cap (≥2.2µF) | Choose only for non-imaging applications where 7μVRMS noise and 130mV dropout are not required; verify thermal performance at 300mA in target layout |
Compared with TPS7A20C285PYCKR, TPS7A20285PYCKR offers identical performance and fit, while MCP1703T-285I/TT trades noise and dropout for lower cost and higher quiescent current - making it viable only in less demanding analog supply roles.
Availability
TPS7A20C285PYCKR is available at Aetrix Electronics and suitable for image sensor power, smartphone camera modules, IP network cameras, and portable medical imaging requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing.
Supply support for TPS7A20C285PYCKR 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 broad automotive, industrial, and consumer qualification.
The TPS7A20C product line delivers ultra-small, low-noise, fast-transient LDOs specifically engineered for powering noise-sensitive analog and RF circuits - including image sensors, ADCs, and RF transceivers - in space-constrained portable electronics.
FAQ
What is the maximum output current capability of the TPS7A20C285PYCKR?
The TPS7A20C285PYCKR delivers up to 300mA of continuous output current while maintaining regulation and thermal safety within its specified junction temperature range (–40°C to +125°C). Current limit is internally set to 360–770mA depending on output voltage and input conditions, with short-circuit protection limiting output to 185mA typical. Derating is not required below 125°C ambient in standard PCB layouts.
Does the TPS7A20C285PYCKR require an external noise-bypass capacitor?
No, the TPS7A20C285PYCKR does not require an external noise-bypass capacitor. Its integrated RC filter reduces internal reference noise to 7μVRMS (10Hz–100kHz) at the 2.85V output, eliminating the need for a separate 10nF–100nF capacitor. This simplifies layout, reduces BOM count, and avoids potential resonance issues associated with discrete bypass networks.
What is the dropout voltage of the TPS7A20C285PYCKR at 300mA load?
The dropout voltage of the TPS7A20C285PYCKR is 130mV maximum at 300mA output current when delivering its fixed 2.85V output. This value is specified under worst-case conditions (TJ = 125°C, VOUT = 95% of nominal), enabling reliable operation from a 3.0V input rail with 170mV headroom - critical for battery-powered systems near end-of-discharge.
How does the smart enable function work on the TPS7A20C285PYCKR?
TPS7A20C285PYCKR features a smart enable input with an internal 500kΩ pulldown resistor. When the EN pin is left floating, this resistor pulls it below 0.3V to ensure default disable. When driven above 0.9V, the pulldown disconnects to minimize leakage. This eliminates external pull-down components and guarantees safe power-up sequencing without risk of unintended activation.
Is the TPS7A20C285PYCKR stable with ceramic output capacitors smaller than 1µF?
Yes, the TPS7A20C285PYCKR is explicitly characterized and guaranteed stable with ceramic output capacitance as low as 0.75µF (derated), provided effective series resistance (ESR) remains between 5mΩ and 50mΩ and equivalent series inductance (ESL) is below 2.5nH. This enables use of small 0402- or 0201-size 0.82µF/1.0µF X7R/X5R ceramics in ultra-compact layouts.
TPS7A20C285PYCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.14V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 18.5 µA
- Current - Supply (Max):
- 2 mA
- PSRR:
- 95dB ~ 36dB (100Hz ~ 1MHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA (0.62x0.62)
TPS7A20C285PYCKR FAQ
1.How can I place an order for TPS7A20C285PYCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A20C285PYCKR 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 TPS7A20C285PYCKR reliable?
The price and inventory of TPS7A20C285PYCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A20C285PYCKR is usually 5 days.
3.What payment methods are accepted for TPS7A20C285PYCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A20C285PYCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A20C285PYCKR?
TPS7A20C285PYCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A20C285PYCKR 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 TPS7A20C285PYCKR?
For technical support, including TPS7A20C285PYCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A20C285PYCKR requirements.
6.How does Aetrix verify that TPS7A20C285PYCKR is sourced from the original manufacturer or authorized distributors?
All TPS7A20C285PYCKR 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 TPS7A20C285PYCKR meets industry standards.
7.What is the process for return or replacement of TPS7A20C285PYCKR?
All TPS7A20C285PYCKR units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A20C285PYCKR, 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 TPS7A20C285PYCKR part is unused and in its original packaging.
Return procedure for TPS7A20C285PYCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS7A20C285PYCKR Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
