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Texas Instruments TPS71709DSETG4
- Part No.:
- TPS71709DSETG4
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TPS71709DSETG4.pdf
- Description:
- IC REG LINEAR 0.9V 150MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,086
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Product details
Overview
TPS71709DSETG4 from Texas Instruments is a fixed-output, 0.9 V low-dropout linear regulator (LDO) with ultra-high PSRR (70 dB at 1 kHz), 170 mV typical dropout at 150 mA, 30 µVRMS output noise (100 Hz–100 kHz), and 45 µA ground current - designed for powering noise-sensitive analog and RF circuits in space-constrained portable devices such as camera sensors and Bluetooth modules.
For engineers reviewing the TPS71709DSETG4 datasheet, TPS71709DSETG4 pinout, TPS71709DSETG4 application, or TPS71709DSETG4 equivalent, this page delivers verified specifications, package mapping to the 1.5-mm × 1.5-mm WSON-6 (DSE) package, validated pin functions, real-world application context, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The TPS71709DSETG4 uses a PMOS pass device and advanced BiCMOS process to achieve fast startup, excellent transient response, and stable regulation with only a 1-µF ceramic output capacitor. Its high-gain error amplifier enables 70 dB PSRR at 1 kHz while maintaining low noise via an integrated noise reduction (NR) pin that filters bandgap reference noise.
This fixed 0.9 V version includes a dedicated NR pin (Pin 3 in DSE package) for external 0.01 µF capacitor connection, enabling 30 µVRMS noise performance and improved PSRR above 10 kHz. It features undervoltage lockout (UVLO) with 2.45 V rising threshold and 150 mV hysteresis, thermal shutdown at 160°C, and internal current limiting (200–575 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.9 V ±3.0% over load, line, temperature, and process - ensures stable core voltage for low-voltage logic and analog sensors. |
| Input Voltage Range | 2.5 V to 6.5 V - supports single-cell Li-ion (3.0–4.2 V), USB (5 V), and multi-rail systems without pre-regulation. |
| Dropout Voltage | 170 mV typical at 150 mA - enables operation with minimal headroom, critical for battery-powered 1.0 V–1.2 V system rails. |
| PSRR | 70 dB at 1 kHz, 67 dB at 100 kHz, 45 dB at 1 MHz - suppresses switching noise from DC/DC converters feeding sensitive RF/analog stages. |
| Output Noise | 30 µVRMS (100 Hz–100 kHz) with 0.01 µF NR capacitor - meets stringent noise requirements of image sensors and ADCs. |
| Ground Current | 45 µA typical at light load - extends battery life in always-on sensor nodes and standby modes. |
| Enable Threshold | VEN(high) = 1.2 V min - compatible with 1.8 V and 3.3 V GPIOs; VEN(low) ≤ 0.4 V ensures full shutdown. |
Pinout & Package
TPS71709DSETG4 is packaged in a thermally enhanced 1.5-mm × 1.5-mm, 6-pin WSON (DSE) package with exposed thermal pad. Pin 5 is GND; Pin 6 is IN; Pin 1 is OUT; Pin 4 is EN; Pin 3 is NR (Noise Reduction); Pin 2 is N/C (no connection, may be tied to GND for thermal improvement).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 6) | Regulator input supply | Accepts 2.5–6.5 V; requires 0.1–1 µF ceramic decoupling close to pin for stability and EMI suppression. |
| OUT (Pin 1) | Regulated 0.9 V output | Delivers up to 150 mA; requires ≥1 µF ceramic capacitor to GND for loop stability and transient response. |
| GND (Pin 5) | Power and signal reference | Primary return path; must be low-impedance; connects to thermal pad for optimal power dissipation. |
| EN (Pin 4) | Active-high enable control | Drives high (>1.2 V) to activate regulator; pulls low (<0.4 V) to reduce quiescent current to 0.2–1.5 µA. |
| NR (Pin 3) | Noise reduction filter node | Connects to 0.01 µF ceramic capacitor to GND to reduce bandgap noise and improve PSRR above 10 kHz. |
| N/C (Pin 2) | No connection | Internally unconnected; may be soldered to PCB ground plane to enhance thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise with NR pin | 30 µVRMS (100 Hz–100 kHz) achieved via dedicated NR pin and 0.01 µF capacitor - eliminates need for post-LDO filtering in precision analog paths. |
| High PSRR across frequency | 70 dB at 1 kHz and 67 dB at 100 kHz - rejects ripple from switching regulators without requiring large LC filters. |
| Fast startup with quick-start circuit | Startup time ≤160 µs (for VOUT ≥1.6 V) enabled by internal 135 µs quick-start switch charging NR capacitor - supports rapid wake-up in sensor hubs. |
| Stable at zero load | Maintains regulation with no output load due to low-current mode circuitry - avoids output voltage drift in intermittent-sampling applications. |
| Thermal and current protection | Auto-shutdown at 160°C junction temperature and restart at 140°C; internal current limit (200–575 mA) prevents damage during short-circuit events. |
Applications
| Camera Sensor Power | Mobile Phone Baseband |
|---|---|
Use Scenario: Powers CMOS image sensor analog front-end (AFE) and PLL clock circuitry in smartphone rear cameras. IC Role / Device Role / Timing Role: Provides ultra-low-noise 0.9 V bias for pixel readout and column amplifiers; supplies clean reference for timing generators. Use Value: 30 µVRMS noise prevents fixed-pattern noise (FPN) and improves SNR; 70 dB PSRR isolates sensor from noisy SoC power domains. |
Use Scenario: Supplies 0.9 V core voltage to application processor I/O and memory interface blocks during active transmission bursts. IC Role / Device Role / Timing Role: Delivers regulated, low-noise rail for high-speed SerDes and DDR PHY logic under dynamic load conditions. Use Value: 150 mA capability and <170 mV dropout sustain voltage during 100 mA load transients; fast load response minimizes droop-induced timing errors. |
| Bluetooth® LE Transceiver | Industrial IoT Sensor Node |
Use Scenario: Powers BLE radio IC's RF synthesizer and baseband processor in wearable hearables and beacons. IC Role / Device Role / Timing Role: Supplies clean 0.9 V to VCO tuning circuitry and digital state machine; enables precise frequency synthesis. Use Value: 70 dB PSRR at 1 kHz suppresses digital switching noise from MCU; 45 µA quiescent current extends coin-cell battery life beyond 1 year. |
Use Scenario: Regulates power for ultra-low-power environmental sensor (temperature/humidity) and sub-GHz RF transceiver in battery-operated gateways. IC Role / Device Role / Timing Role: Provides stable 0.9 V rail for sensor ADC and RF LNA; enables accurate measurement during periodic wake-up cycles. Use Value: Zero-load stability allows deep sleep between readings; thermal shutdown protects against enclosure overheating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL71709PDSER | Same 0.9 V output, 150 mA rating, and 1.5-mm × 1.5-mm WSON-6 package; lower 25 µA typical IQ, but PSRR reduced to 60 dB at 1 kHz and 35 dB at 1 MHz. | Better suited for ultra-low-power sleep modes where PSRR >60 dB is not required; less effective in RF-noise-heavy environments. | Select when lowest possible quiescent current dominates over PSRR and noise performance. |
| TPS7A0509PDBVR | 0.9 V fixed output, SOT-23-5 package (2.9 mm × 1.6 mm); higher 200 mA current limit, but 200 mV dropout at 150 mA and 40 µVRMS noise (no NR pin). | Offers higher current headroom and smaller footprint than SC70 but lacks NR pin - cannot match 30 µVRMS noise or 70 dB PSRR. | Select when board space permits SOT-23 and noise/PSRR requirements are relaxed to ≤40 µVRMS. |
Compared with TPL71709PDSER and TPS7A0509PDBVR, the TPS71709DSETG4 uniquely delivers 70 dB PSRR at 1 kHz and 30 µVRMS noise in the smallest 1.5-mm × 1.5-mm WSON package - making it the only choice for compact, noise-critical RF and imaging applications demanding both size and performance.
Availability
TPS71709DSETG4 is available at Aetrix Electronics and suitable for camera sensor power, Bluetooth® LE transceivers, and industrial IoT sensor nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS71709DSETG4 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 decades of LDO design expertise and broad automotive, industrial, and consumer product portfolios.
The TPS717 family was engineered specifically for ultra-low-noise, high-PSRR power delivery in space-constrained portable electronics - targeting camera modules, wireless handsets, and RF subsystems where traditional LDOs fail to meet noise and transient response requirements.
FAQ
What is the maximum output current capability of the TPS71709DSETG4?
The TPS71709DSETG4 is rated for continuous output current up to 150 mA under recommended operating conditions. Its internal current limit activates at 200–575 mA depending on input voltage and temperature, providing fault protection without external components. For sustained 150 mA operation, ensure junction temperature remains ≤125°C using appropriate PCB copper area and thermal vias under the exposed pad.
Does the TPS71709DSETG4 require an external noise reduction capacitor?
Yes - the TPS71709DSETG4 includes a dedicated NR (noise reduction) pin (Pin 3) that must be connected to a 0.01 µF ceramic capacitor to GND to achieve its specified 30 µVRMS output noise and optimal PSRR above 10 kHz. Omitting this capacitor degrades noise performance to ~95 × VOUT µVRMS and reduces high-frequency PSRR by up to 25 dB.
What package type and dimensions does the TPS71709DSETG4 use?
The TPS71709DSETG4 uses the DSE package: a 1.5-mm × 1.5-mm, 6-pin WSON with exposed thermal pad. This package is distinct from the larger 2-mm × 2-mm WSON (DRV) and 5-pin SC70 (DCK) variants in the TPS717 family. The DSE variant offers the smallest footprint and best thermal resistance (RθJB = 149.3°C/W) among available options.
Can the TPS71709DSETG4 operate with zero load current?
Yes - the TPS71709DSETG4 maintains stable regulation down to 0 mA output current thanks to an integrated low-current mode circuit that preserves loop gain under no-load conditions. This eliminates output voltage drift during sensor sleep cycles and avoids the need for minimum load resistors, reducing power waste in battery-powered designs.
What is the purpose of the N/C pin on the TPS71709DSETG4?
Pin 2 of the TPS71709DSETG4 is labeled N/C (no connection) and is internally unconnected. While not electrically functional, it may be soldered directly to the PCB ground plane to improve thermal conduction from the package body - lowering junction-to-board thermal resistance by up to 5°C/W in typical layouts with 2 oz copper and 6 thermal vias.
TPS71709DSETG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 70dB ~ 45dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TPS71709DSETG4 FAQ
1.How can I place an order for TPS71709DSETG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS71709DSETG4 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 TPS71709DSETG4 reliable?
The price and inventory of TPS71709DSETG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS71709DSETG4 is usually 5 days.
3.What payment methods are accepted for TPS71709DSETG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS71709DSETG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS71709DSETG4?
TPS71709DSETG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS71709DSETG4 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 TPS71709DSETG4?
For technical support, including TPS71709DSETG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS71709DSETG4 requirements.
6.How does Aetrix verify that TPS71709DSETG4 is sourced from the original manufacturer or authorized distributors?
All TPS71709DSETG4 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 TPS71709DSETG4 meets industry standards.
7.What is the process for return or replacement of TPS71709DSETG4?
All TPS71709DSETG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS71709DSETG4, 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 TPS71709DSETG4 part is unused and in its original packaging.
Return procedure for TPS71709DSETG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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