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Texas Instruments TPS715A33DRVRM3
- Part No.:
- TPS715A33DRVRM3
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS715A33DRVRM3.pdf
- Description:
- 80-MA 24-V ULTRA-LOW-IQ LOW-DROP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS715A33DRVRM3 from Texas Instruments is a fixed-output 3.3-V, 80-mA low-dropout linear regulator with ultra-low 3.2-μA quiescent current, 650-mV typical dropout at full load, and operation across 2.5 V to 24 V input range. It delivers stable power to battery-operated MSP430 microcontrollers in space-constrained industrial sensing nodes.
For engineers reviewing the TPS715A33DRVRM3 datasheet, TPS715A33DRVRM3 pinout, TPS715A33DRVRM3 application, or TPS715A33DRVRM3 equivalent, key selection criteria include guaranteed 3.3-V ±1.6% output accuracy over –40°C to +125°C, WSON-6 package thermal performance (RθJA = 69.5°C/W), and soft-start–enabled inrush control for reliable cold-start in energy-harvesting systems.
Technical Context
The TPS715A33DRVRM3 implements a CMOS pass transistor architecture with internal 1.205-V bandgap reference and leakage-null control circuitry active below 5 μA load. Its brick-wall overcurrent protection triggers at 160–500 mA depending on VIN and temperature, limiting fault energy without latch-off.
This variant is the "new chip" version of the TPS715A family, featuring improved ground current stability (≤4.8 μA max over full temp/load range), lower output noise (425 μVRMS, 200 Hz–100 kHz), and enhanced PSRR (≥60 dB at 100 kHz) versus legacy silicon-enabling cleaner supply rails in noise-sensitive analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.3 V ±1.6% (3.168–3.432 V) over full load/temperature range-ensures reliable logic-level compliance for 3.3-V MCU I/O and peripherals. |
| Quiescent current | 3.2 μA typical, ≤4.8 μA max (–40°C to +125°C, 0–80 mA)-enables multi-year battery life in always-on IoT sensors. |
| Dropout voltage | 650 mV typical at 80 mA (VIN ≥ 4.3 V)-supports regulation from single Li-ion (3.0–4.2 V) or 5-V rail with margin. |
| Input voltage range | 2.5 V to 24 V-accommodates wide-input industrial supplies, automotive transients, and multi-cell battery stacks. |
| Thermal resistance | RθJA = 69.5°C/W (WSON-6 package)-permits 350 mW dissipation at 50°C ambient before reaching 125°C junction limit. |
| Output capacitor | Minimum 1 μF ceramic (derated ≥50%)-ensures stability with low-ESR MLCCs; avoids electrolytic or tantalum dependencies. |
Pinout & Package
TPS715A33DRVRM3 uses the 2-mm × 2-mm, 6-pin WSON (DRV) package with exposed thermal pad. Pin 4 is the GND pad (thermal and electrical), and pins 2 and 5 are NC (no-connect) - must be grounded for optimal thermal performance per TI design guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply | Accepts 2.5–24 V; requires ≥0.1-μF ceramic decoupling to GND to suppress source impedance-induced ringing. |
| 2 (NC) | No-connect | Internally unconnected; tie to GND for improved thermal conduction and EMI shielding. |
| 3 (GND) | Ground reference | Primary signal ground; connects to thermal pad (Pin 4) - forms low-impedance return path for load current. |
| 4 (GND Pad) | Thermal & electrical ground | Exposed copper pad; must be soldered to ≥100 mm² PCB copper pour for RθJB = 35.4°C/W performance. |
| 5 (NC) | No-connect | Internally unconnected; tie to GND for mechanical stability and thermal enhancement. |
| 6 (OUT) | Regulated output | Delivers 3.3 V; requires ≥1-μF ceramic output capacitor (derated) placed within 3 mm of pin for transient stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ across full load range | 3.2 μA typ, stable from 0 to 80 mA - eliminates efficiency penalty at light loads common in duty-cycled sensor nodes. |
| Internal soft-start | Controls output ramp rate during power-up - limits inrush into downstream capacitors and prevents brownout on shared rails. |
| Brick-wall overcurrent protection | 160–500 mA trip threshold (VIN-dependent) - protects against short-circuit faults without latch-off or external components. |
| Wide-input, low-noise regulation | 2.5–24 V input + 425 μVRMS output noise - supports direct connection to noisy DC/DC outputs or long-wire industrial inputs. |
| High-temp operational integrity | Specified from –40°C to +125°C junction - enables deployment in enclosed enclosures, motor drives, and outdoor infrastructure. |
Applications
| Smart Utility Metering | Portable Medical Sensors |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meters with RF mesh backhaul and real-time clock. IC Role / Device Role / Timing Role: Primary 3.3-V supply for MSP430F67xx metrology MCU and sub-GHz transceiver. Use Value: 3.2-μA IQ extends 10-year lithium-thionyl-chloride battery life; 24-V tolerance handles meter test-mode HV pulses. |
Use Scenario: Wearable ECG/SpO₂ patch with Bluetooth LE and rechargeable coin cell. IC Role / Device Role / Timing Role: Clean 3.3-V rail for analog front-end and BLE SoC during intermittent sampling. Use Value: 425-μVRMS noise prevents ADC quantization errors; soft-start avoids reset glitches during wake-from-sleep. |
| Industrial PLC I/O Modules | Building Automation Controllers |
|
Use Scenario: DIN-rail mounted digital input module powered from 24-V DC field bus. IC Role / Device Role / Timing Role: Local 3.3-V regulator for isolated microcontroller and optocoupler interface logic. Use Value: 650-mV dropout ensures regulation during brownouts to 23.3 V; RθJA = 69.5°C/W sustains operation at 70°C ambient. |
Use Scenario: HVAC controller with Zigbee radio, temperature/humidity sensors, and LCD display. IC Role / Device Role / Timing Role: Main 3.3-V supply for ARM Cortex-M0+ MCU and peripheral interfaces. Use Value: 1.6% output accuracy maintains sensor calibration integrity; WSON-6 footprint saves board space in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS71533DRVR | Same silicon, identical specs, but non-RoHS-compliant (legacy Pb-based finish); no soft-start circuit. | Lacks inrush control - unsuitable for systems with large downstream capacitance or sensitive reset behavior. | Select only if RoHS exemption applies and soft-start is unnecessary; verify compatibility with existing layout. |
| MCP1703T-3302E/MB | 3.3-V fixed LDO, 250-mA output, 1.8-μA IQ, 6-V max input - lower voltage rating and higher current capability. | Cannot replace in 12–24-V industrial or battery-stack applications due to 6-V VIN limit. | Valid alternative only in low-voltage embedded designs (e.g., USB-powered devices); requires VIN < 6 V. |
Compared with TPS715A33DRVRM3, TPS71533DRVR lacks soft-start and RoHS compliance, while MCP1703T-3302E/MB offers higher current but fails at >6 V input-making TPS715A33DRVRM3 uniquely suited for wide-input, ultra-low-power, thermally constrained applications.
Availability
TPS715A33DRVRM3 is available at Aetrix Electronics and suitable for smart utility metering, portable medical sensors, and industrial PLC I/O modules requiring stable component supply with guaranteed long-term manufacturability and traceable sourcing.
Supply support for TPS715A33DRVRM3 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 delivering analog and embedded processing solutions, with over 50 years of power management innovation and broad distribution channel support.
The TPS715A series was designed specifically for ultra-low-power, wide-input industrial and battery-powered applications-emphasizing quiescent current optimization, thermal robustness in miniature packages, and reliability across extended temperature ranges.
FAQ
What is the maximum input voltage rating for TPS715A33DRVRM3?
The TPS715A33DRVRM3 has an absolute maximum input voltage of 30 V for the new-chip revision. Its recommended operating range is 2.5 V to 24 V, ensuring safe and specified performance across industrial and battery-powered use cases. Exceeding 30 V risks permanent damage per Absolute Maximum Ratings.
Does TPS715A33DRVRM3 require an external feedback network?
No, TPS715A33DRVRM3 is a fixed-output 3.3-V variant and does not require external resistors. The FB pin is internally connected to the output divider; it is labeled NC in the WSON-6 pinout and must remain unconnected. Only adjustable versions (e.g., TPS715A01) use FB for external programming.
What is the minimum output capacitance required for TPS715A33DRVRM3 stability?
TPS715A33DRVRM3 requires a minimum 1-μF ceramic output capacitor (with ≥50% derating), meaning the nominal value must be ≥2.0 μF to ensure ≥1.0 μF effective capacitance at operating bias and temperature. This is mandatory for stability-0.47-μF capacitors are insufficient for the new-chip revision.
How does the soft-start function operate in TPS715A33DRVRM3?
The TPS715A33DRVRM3 integrates internal soft-start that controls the output voltage ramp rate during power-up, limiting inrush current into downstream capacitors. This prevents system resets, input rail droop, and stress on upstream sources-critical when powering MCUs with large bypass networks or energy-harvesting inputs.
Is TPS715A33DRVRM3 compatible with lead-free PCB assembly processes?
Yes, TPS715A33DRVRM3 is RoHS-compliant and qualified for standard lead-free reflow profiles (J-STD-020, peak 260°C). Its WSON-6 package uses matte tin terminations and meets IPC/JEDEC moisture sensitivity level 2a-requiring bake only if exposed >168 hours at >60% RH prior to reflow.
TPS715A33DRVRM3 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):
- 24V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.12V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 5.8 µA
- Current - Supply (Max):
- 5.8 µA
- PSRR:
- 60dB (100kHz)
- Control Features:
- Current Limit
- Protection Features:
- Over Current, Reverse Current
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS715A33DRVRM3 FAQ
1.How can I place an order for TPS715A33DRVRM3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS715A33DRVRM3 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 TPS715A33DRVRM3 reliable?
The price and inventory of TPS715A33DRVRM3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS715A33DRVRM3 is usually 5 days.
3.What payment methods are accepted for TPS715A33DRVRM3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS715A33DRVRM3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS715A33DRVRM3?
TPS715A33DRVRM3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS715A33DRVRM3 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 TPS715A33DRVRM3?
For technical support, including TPS715A33DRVRM3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS715A33DRVRM3 requirements.
6.How does Aetrix verify that TPS715A33DRVRM3 is sourced from the original manufacturer or authorized distributors?
All TPS715A33DRVRM3 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 TPS715A33DRVRM3 meets industry standards.
7.What is the process for return or replacement of TPS715A33DRVRM3?
All TPS715A33DRVRM3 units undergo pre-shipment inspection (PSI). If there is an issue with TPS715A33DRVRM3, 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 TPS715A33DRVRM3 part is unused and in its original packaging.
Return procedure for TPS715A33DRVRM3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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