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Texas Instruments TLV75529PDRVR
- Part No.:
- TLV75529PDRVR
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TLV75529PDRVR.pdf
- Description:
- IC REG LINEAR 2.9V 500MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,725
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Product details
Overview
TLV75529PDRVR from Texas Instruments is a 500mA, low-quiescent-current (25μA typical), fixed 2.9V output LDO regulator in a 5-pin SOT-23-5 (DBV) package. It operates from 1.45V to 5.5V input, delivers ±1% output accuracy at 85°C, and maintains regulation with only 1µF ceramic output capacitance - enabling compact power solutions for battery-powered microcontrollers and portable electronics.
For engineers reviewing the TLV75529PDRVR datasheet, TLV75529PDRVR pinout, TLV75529PDRVR application, or TLV75529PDRVR equivalent, key selection criteria include its 238mV max dropout at 500mA (3.3VOUT), active output discharge, foldback current limit, and thermal shutdown protection - all validated for operation across –40°C to +125°C junction temperature.
Technical Context
The TLV75529PDRVR uses a PMOS pass transistor architecture with precision band-gap reference and error amplifier, delivering 1% output accuracy over temperature and line/load variations. Its internal soft-start ensures monotonic VOUT rise and limits inrush current during power-up.
Functional modes include normal regulation (VIN ≥ VOUT + VDO, EN > VHI), dropout (VIN < VOUT + VDO), and disabled state (EN < VLO) with active pulldown (120Ω) to discharge VOUT. Undervoltage lockout (UVLO) activates below 1.21V (rising) with 40mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 2.9V - eliminates external feedback network; supports modern MCU core rails requiring stable low-voltage bias. |
| Max output current | 500mA - sufficient for powering single-core MCUs, sensors, or RF transceivers without external boost stages. |
| Dropout voltage | 238mV max at 500mA (3.3VOUT) - enables operation from 3.3V rail down to ~3.1V before regulation loss; verified for DBV package at 85°C. |
| Quiescent current | 25μA typical - minimizes standby power in always-on systems like remote controls or IoT edge nodes. |
| Output accuracy | ±1% max at 85°C - ensures reliable logic-level compatibility and ADC reference stability across industrial temperature range. |
| PSRR | 46dB at 100kHz - suppresses high-frequency switching noise from upstream DC/DC converters feeding the LDO input. |
| Stability | With ≥1µF ceramic COUT - reduces BOM count and PCB area vs. traditional tantalum-based LDOs; no ESR requirements. |
Pinout & Package
TLV75529PDRVR is packaged in a 5-pin SOT-23-5 (DBV) case measuring 2.9mm × 2.8mm, with standard lead pitch and exposed pad not present (DYD variant has thermal pad; DBV does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 1.45V–5.5V; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| GND | Power ground reference | Common return path for IN, OUT, and internal circuitry; must be low-impedance for PSRR and thermal performance. |
| EN | Enable control input | Active-high logic; drives >1V to enable, <0.3V to disable; internal 120Ω pulldown ensures known state when floating. |
| NC | No internal connection | Pin 4 is unconnected - must remain unpopulated or left floating; no routing or soldering required. |
| OUT | Regulated output | Delivers fixed 2.9V ±1%; requires ≥1µF ceramic capacitor to GND; actively discharged during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in soft-start | Monotonic VOUT rise prevents inrush current spikes and avoids input rail droop during MCU power-up sequences. |
| Foldback current limit | Reduces thermal stress during short-circuit events by scaling current downward as VOUT collapses - extends time-to-thermal-shutdown. |
| Active output discharge | Internal 120Ω switch pulls VOUT to GND within microseconds of EN deactivation - ensures clean reset and prevents back-powering. |
| High PSRR (46dB @ 100kHz) | Rejects noise from noisy DC/DC sources, preserving signal integrity in mixed-signal applications like camera modules or audio codecs. |
| Stable with 1µF ceramic COUT | Eliminates need for large, costly, temperature-sensitive electrolytic/tantalum capacitors - reduces solution size and cost. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Powering ultra-low-power biomedical sensor nodes (e.g., pulse oximeters, ECG front-ends) operating from coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Primary 2.9V bias rail for analog front-end (AFE) and BLE SoC; provides clean, low-noise supply independent of battery voltage decay. Use Value: 25μA quiescent current extends battery life beyond 5 years in sleep mode; 1µF stability enables miniaturized PCB layout with no capacitor derating overhead. |
Use Scenario: Supplying isolated digital I/O channels in DIN-rail mounted programmable logic controllers with wide ambient temperature range (−40°C to +85°C). IC Role / Device Role / Timing Role: Local 2.9V regulator for optocoupler drivers and level-shifters; handles load transients from relay coil switching without brownout. Use Value: ±1% accuracy ensures consistent logic thresholds across temperature; foldback current limit prevents latch-up during field-wiring faults. |
| Smart Home Hub Controllers | Automotive Cabin Infotainment |
|
Use Scenario: Regulating power for dual-core application processors and Wi-Fi/BLE co-processors in voice-controlled smart speakers and hubs. IC Role / Device Role / Timing Role: Secondary LDO supplying 2.9V to memory interfaces and peripheral buses; complements main DC/DC converter. Use Value: 46dB PSRR at 100kHz attenuates switching noise from 2MHz buck converter, preventing data corruption on SPI/I²C lines. |
Use Scenario: Providing fault-tolerant 2.9V supply to touch controller ICs and display timing controllers in automotive infotainment head units. IC Role / Device Role / Timing Role: Dedicated LDO for human-machine interface (HMI) subsystem; integrates UVLO and thermal shutdown per AEC-Q100 functional safety requirements. Use Value: UVLO threshold (1.21–1.44V) prevents erratic behavior during cold-crank; active discharge ensures deterministic reset after ignition cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC75529QDRVRQ1 | AEC-Q100 qualified, automotive-grade version with same 2.9V output, 500mA rating, and DBV package; higher UVLO (1.35V min) and extended temp range (−40°C to +125°C). | Required for automotive cabin electronics where qualification to AEC-Q100 Grade 2 is mandatory; not suitable for commercial-only designs due to cost and qualification overhead. | Select TLC75529QDRVRQ1 only when automotive qualification is contractually required; TLV75529PDRVR remains optimal for industrial and consumer use cases. |
| MCP1755-2902E/DB | Microchip 500mA LDO with 2.9V output in SOT-23-5; higher IQ (40μA typ), lower PSRR (35dB @ 100kHz), and no active discharge or foldback current limit. | Lacks active output discharge and foldback protection - unsuitable for systems requiring deterministic shutdown or robust fault handling. | Choose MCP1755-2902E/DB only for cost-sensitive, non-critical applications where fast discharge and fault resilience are not required. |
Compared with TLC75529QDRVRQ1, TLV75529PDRVR offers identical electrical performance at lower cost and without automotive qualification overhead; compared with MCP1755-2902E/DB, it delivers superior noise rejection, fault protection, and power efficiency - making it the preferred choice for demanding embedded applications.
Availability
TLV75529PDRVR is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart home hub controllers, and automotive cabin infotainment systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TLV75529PDRVR 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 LDO design expertise and broad industrial qualification coverage.
The TLV755P family was engineered for space-constrained, battery-sensitive applications - delivering ultra-low IQ, small-footprint packaging (X2SON, SOT-23, WSON), and robust protection features without sacrificing regulation accuracy or transient response.
FAQ
What is the maximum input voltage for TLV75529PDRVR?
The absolute maximum input voltage for TLV75529PDRVR is 6.0V, but the recommended operating range is 1.45V to 5.5V. Operation above 5.5V risks permanent damage and violates the device's specified safe operating area per TI's SBVS320D datasheet.
Does TLV75529PDRVR require an external pull-up resistor on the EN pin?
No - TLV75529PDRVR includes an internal pulldown resistor (120Ω) on the EN pin. If always-on operation is needed, connect EN directly to IN; if controlled enable is required, drive EN with a logic signal meeting VHI ≥ 1V and VLO ≤ 0.3V.
Can TLV75529PDRVR operate with a 0.47µF output capacitor?
No - while the datasheet states "nominal" COUT ≥ 0.47µF, it explicitly requires ≥1µF ceramic capacitance for guaranteed stability and transient performance. Using 0.47µF may cause oscillation or poor load regulation, especially under temperature variation.
What is the thermal resistance (RθJA) of TLV75529PDRVR in its DBV package?
The JEDEC-standard RθJA for TLV75529PDRVR in the SOT-23-5 (DBV) package is 231.1°C/W. On a 2s2p evaluation board with no thermal vias, this value reflects worst-case ambient dissipation - actual performance improves significantly with copper pour and thermal vias.
Is TLV75529PDRVR pin-compatible with other TLV755P variants?
No - TLV75529PDRVR (DBV package) has a 5-pin SOT-23 layout (IN, GND, EN, NC, OUT), while TLV75529PDQN (X2SON-4) and TLV75529PDRV (WSON-6) use different pin counts and footprints. Pin mapping and PCB layout are not interchangeable across packages.
TLV75529PDRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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):
- 2.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.325V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 31 µA
- Current - Supply (Max):
- -
- PSRR:
- 52dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TLV75529PDRVR FAQ
1.How can I place an order for TLV75529PDRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV75529PDRVR 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 TLV75529PDRVR reliable?
The price and inventory of TLV75529PDRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV75529PDRVR is usually 5 days.
3.What payment methods are accepted for TLV75529PDRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV75529PDRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV75529PDRVR?
TLV75529PDRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV75529PDRVR 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 TLV75529PDRVR?
For technical support, including TLV75529PDRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV75529PDRVR requirements.
6.How does Aetrix verify that TLV75529PDRVR is sourced from the original manufacturer or authorized distributors?
All TLV75529PDRVR 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 TLV75529PDRVR meets industry standards.
7.What is the process for return or replacement of TLV75529PDRVR?
All TLV75529PDRVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV75529PDRVR, 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 TLV75529PDRVR part is unused and in its original packaging.
Return procedure for TLV75529PDRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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