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Texas Instruments TLV70228QDSERQ1
- Part No.:
- TLV70228QDSERQ1
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TLV70228QDSERQ1.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
TLV70228QDSERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 300-mA low-dropout linear regulator with fixed 2.8-V output, 2% accuracy over –40°C to +125°C, 35 µA quiescent current, and 37 mV dropout at 50 mA - designed for image sensor power and microprocessor rails in camera modules and infotainment head units.
For engineers reviewing the TLV70228QDSERQ1 datasheet, TLV70228QDSERQ1 pinout, TLV70228QDSERQ1 application, or TLV70228QDSERQ1 equivalent, key selection criteria include automotive-grade thermal shutdown (165°C), 68 dB PSRR at 1 kHz, stability with ≥0.1 µF ceramic output capacitance, and enable-pin control with 0.9 V turn-on threshold.
Technical Context
The TLV70228QDSERQ1 uses a PMOS pass transistor architecture enabling ultra-low dropout voltage that scales with load current - 37 mV at 50 mA, 75 mV at 100 mA, and 220 mV at 300 mA for VOUT = 2.8 V. Its precision bandgap reference and error amplifier deliver ±2% DC output accuracy across temperature and line/load conditions.
It integrates undervoltage lockout (UVLO) triggering at 1.9 V, active-high enable logic with 0.4 V shutdown threshold, and internal current limiting (320–860 mA). Thermal shutdown activates at 165°C and resets at 145°C, supporting safe operation in high-ambient automotive environments without external supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over –40°C to +125°C - ensures stable core rail for 2.8-V image sensors and MCU I/O domains. |
| Max Output Current | 300 mA continuous - supports dual-lane MIPI CSI-2 image sensors and low-power microcontrollers. |
| Quiescent Current | 35 µA typical - enables always-on subsystems in automotive body electronics with minimal battery drain. |
| Dropout Voltage | 37 mV at 50 mA - allows regulation from 2.837 V input, critical for single-cell LiFePO₄ or boosted 3.3-V supply derating. |
| PSRR | 68 dB at 1 kHz - suppresses switching noise from adjacent DC/DC converters in camera module PCBs. |
| Output Capacitance | Stable with ≥0.1 µF effective ceramic capacitance - permits use of small 0402/0603 X5R/X7R caps in space-constrained modules. |
| Enable Threshold | VEN(HI) = 0.9 V, VEN(LO) = 0.4 V - compatible with 1.8-V and 3.3-V GPIOs without level-shifting. |
| Thermal Shutdown | 165°C trip, 145°C reset - provides autonomous fault recovery in sealed automotive enclosures. |
Pinout & Package
TLV70228QDSERQ1 is packaged in a 1.5-mm × 1.5-mm, 6-pin WSON (DSE) package with wettable flanks, optimized for automated optical inspection (AOI) and thermal performance in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.0–5.5 V; requires ≥0.1 µF ceramic capacitor to GND for transient immunity and stability. |
| GND | Power ground reference | Single-point connection for IN and OUT capacitors; must tie NC pins to GND for improved thermal dissipation. |
| EN | Active-high enable control | Pull high ≥0.9 V to regulate; pull low ≤0.4 V to reduce ground current to 1 µA nominal. |
| OUT | Regulated 2.8-V output | Delivers up to 300 mA; requires ≥0.1 µF ceramic capacitor to GND - no ESR requirement. |
| NC | No-connect thermal pad | Internally connected to die paddle; must be soldered to PCB thermal pad for RθJA = 321.3°C/W. |
| NC | No-connect terminal | Unused pin; electrically isolated - tie to GND per layout guidelines to enhance thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation, HBM ±2 kV / CDM ±750 V - meets automotive reliability requirements without derating. |
| Ultra-low IQ (35 µA) | Enables >1-year battery life in always-on vehicle occupancy sensors powered by coin cells or supercaps. |
| 0.1 µF minimum COUT stability | Reduces BOM cost and board area by enabling 0402-size ceramics instead of larger 1-µF caps in tight camera module layouts. |
| High PSRR (68 dB @ 1 kHz) | Mitigates ripple from buck converters feeding adjacent RF transceivers or SerDes links in ADAS domain controllers. |
| Integrated protection suite | Combines thermal shutdown, current limit (320–860 mA), and UVLO (1.9 V) - eliminates need for external supervisors in safety-critical power rails. |
| PMOS pass element | Provides reverse-voltage blocking (no body diode conduction from OUT to IN) - prevents backfeed in multi-rail systems during hot-swap events. |
Applications
| Automotive Camera Modules | Image Sensor Power |
|---|---|
Use Scenario: Front-facing ADAS camera with rolling-shutter CMOS sensor requiring clean, low-noise 2.8-V analog supply. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 2.8-V bias to sensor analog front-end (AFE) and PLL circuitry. Use Value: 48 µVRMS output noise and 68 dB PSRR prevent clock jitter and SNR degradation in 12-bit image capture. | Use Scenario: Rear-view camera module with integrated ISP, where 2.8-V rail powers sensor interface and pixel array bias. IC Role / Device Role / Timing Role: Fixed-output LDO supplying stable voltage to sensor's analog pixel columns and column ADC reference. Use Value: 2% accuracy over temperature ensures consistent exposure calibration across –40°C to +105°C vehicle cabin range. |
| Microprocessor Rails | Automotive Infotainment Head Units |
Use Scenario: Low-power MCU (e.g., ARM Cortex-M7) in telematics control unit requiring always-on 2.8-V I/O rail. IC Role / Device Role / Timing Role: Standby LDO maintaining I/O voltage during sleep mode while minimizing quiescent draw. Use Value: 35 µA IQ enables <10 µA system standby current when paired with MCU-controlled EN pin sequencing. | Use Scenario: Touchscreen controller subsystem in center-stack infotainment unit needing isolated 2.8-V supply. IC Role / Device Role / Timing Role: Secondary LDO decoupling touchscreen digitizer IC from noisy main SoC power domain. Use Value: 37 mV dropout allows operation from partially discharged 3.0-V backup battery during engine cranking events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0528PDBVR | Lower IQ (25 µA), same 2.8-V output, but only 200-mA rated; no AEC-Q100 qualification. | Suitable for non-automotive consumer IoT, not qualified for under-hood or safety-critical use. | Select only for cost-sensitive industrial or commercial designs lacking automotive certification needs. |
| TLV73328PDBVR | Same AEC-Q100 Grade 1 rating, 300-mA output, but higher IQ (60 µA); 120 mV dropout at 300 mA. | Better thermal robustness in high-ambient zones, but less efficient at light loads and higher dropout limits minimum input voltage. | Prefer when board-level thermal resistance exceeds 200°C/W and dropout margin is >120 mV. |
Compared with TPS7A0528PDBVR and TLV73328PDBVR, TLV70228QDSERQ1 uniquely balances automotive qualification, 35-µA IQ, and 37-mV dropout at 50 mA - making it optimal for space- and power-constrained camera modules where both efficiency and compliance are mandatory.
Availability
TLV70228QDSERQ1 is available at Aetrix Electronics and suitable for automotive camera modules, image sensor power supplies, and microprocessor I/O rails requiring stable component supply with full AEC-Q100 traceability and PPAP support.
Supply support for TLV70228QDSERQ1 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 and embedded processing technologies, with deep expertise in automotive power management and signal chain solutions.
The TLV702-Q1 product line delivers ultra-low-IQ, high-PSRR LDOs engineered specifically for automotive vision systems, ADAS sensors, and infotainment subsystems operating across –40°C to +125°C.
FAQ
What is the minimum input voltage required for TLV70228QDSERQ1 to maintain regulation at 300 mA?
The TLV70228QDSERQ1 requires VIN ≥ VOUT + VDO = 2.8 V + 220 mV = 3.02 V to maintain regulation at 300 mA, based on the datasheet's 220 mV dropout specification at IOUT = 300 mA and VOUT = 2.8 V. Below this, the device enters dropout mode with degraded transient response.
Does TLV70228QDSERQ1 require an input capacitor for stability?
No, TLV70228QDSERQ1 does not require an input capacitor for stability, but TI recommends a 0.1–1 µF low-ESR ceramic capacitor from IN to GND to improve transient response and noise rejection - especially when source impedance exceeds 2 Ω or fast load steps occur.
Can TLV70228QDSERQ1 be used with tantalum or aluminum electrolytic output capacitors?
TLV70228QDSERQ1 is specified for stability with ceramic capacitors ≥0.1 µF; tantalum or aluminum electrolytics are not recommended due to higher ESR (>200 mΩ) and temperature/voltage derating effects that may compromise phase margin and cause oscillation.
What is the thermal resistance (RθJA) of TLV70228QDSERQ1 in its WSON package?
The TLV70228QDSERQ1 in the 6-pin WSON (DSE) package has a junction-to-ambient thermal resistance (RθJA) of 321.3°C/W, measured on a standard 2-layer JEDEC test board with two ounces of copper per layer - actual performance improves with enhanced PCB copper area and thermal vias.
Is TLV70228QDSERQ1 pin-compatible with other variants in the TLV702-Q1 family?
Yes, all TLV702-Q1 variants in the 6-pin WSON (DSE) package share identical pinout and footprint - including TLV70228QDSERQ1, TLV70233QDSERQ1, and TLV70218QDSERQ1 - enabling drop-in voltage option changes without PCB redesign.
TLV70228QDSERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.375V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 370 µA
- PSRR:
- 68dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TLV70228QDSERQ1 FAQ
1.How can I place an order for TLV70228QDSERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70228QDSERQ1 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 TLV70228QDSERQ1 reliable?
The price and inventory of TLV70228QDSERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70228QDSERQ1 is usually 5 days.
3.What payment methods are accepted for TLV70228QDSERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70228QDSERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70228QDSERQ1?
TLV70228QDSERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70228QDSERQ1 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 TLV70228QDSERQ1?
For technical support, including TLV70228QDSERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70228QDSERQ1 requirements.
6.How does Aetrix verify that TLV70228QDSERQ1 is sourced from the original manufacturer or authorized distributors?
All TLV70228QDSERQ1 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 TLV70228QDSERQ1 meets industry standards.
7.What is the process for return or replacement of TLV70228QDSERQ1?
All TLV70228QDSERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV70228QDSERQ1, 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 TLV70228QDSERQ1 part is unused and in its original packaging.
Return procedure for TLV70228QDSERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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