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Texas Instruments TPS71750QDSERQ1
- Part No.:
- TPS71750QDSERQ1
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFDFN
- Datasheet:
-
TPS71750QDSERQ1.pdf
- Description:
- IC REG LINEAR 5V 150MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,388
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Product details
Overview
TPS71750QDSERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified, low-noise, high-PSRR linear regulator delivering 5.0 V fixed output at up to 150 mA with 170 mV typical dropout, 30 μVRMS (100 Hz–100 kHz) output noise, and 70 dB PSRR at 1 kHz - deployed in camera sensor and microcontroller power rails for ADAS and infotainment systems.
For engineers reviewing the TPS71750QDSERQ1 datasheet, TPS71750QDSERQ1 pinout, TPS71750QDSERQ1 application, or TPS71750QDSERQ1 equivalent, key selection criteria include its 1.5-mm × 1.5-mm WSON-6 package, ultra-low ground current (45 μA), noise reduction (NR) pin support, thermal shutdown (160°C), and compatibility with 1-μF ceramic output capacitance.
Technical Context
The TPS71750QDSERQ1 uses a PMOS pass device and advanced BiCMOS process to achieve fast startup, excellent transient response, and stable regulation with only 1 μF output capacitance. Its error amplifier features precision voltage reference and feedback loop ensuring ±3% worst-case accuracy across load, line, temperature, and process variations.
It integrates undervoltage lockout (UVLO) with 2.45 V turn-on threshold and 150 mV hysteresis, active-high enable logic compatible with TTL/CMOS levels, and internal current limiting (200–575 mA). The NR pin enables external 10-nF capacitor connection to suppress bandgap reference noise and improve PSRR beyond 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±3% over full temperature, load, and line range - ensures stable supply for sensitive analog/RF circuits without external feedback resistors. |
| Max Output Current | 150 mA continuous - sufficient for powering single-core microcontrollers, image sensors, or RF transceivers in automotive modules. |
| Dropout Voltage | 170 mV typical at 150 mA - enables operation down to VIN = 5.17 V, supporting 5.5 V rail margin in 12 V automotive systems with LDO pre-regulation. |
| PSRR | 70 dB at 1 kHz, 67 dB at 100 kHz, 45 dB at 1 MHz - suppresses switching noise from upstream DC/DC converters feeding PLLs and VCOs. |
| Output Noise | 30 μVRMS (100 Hz–100 kHz) with CNR = 10 nF - meets stringent low-noise requirements for high-resolution ADCs and camera ISPs. |
| Ground Current | 45 μA typical at light load - extends battery life in always-on automotive subsystems such as telematics wake-up receivers. |
| Enable Threshold | VEN(high) = 1.2 V min, VEN(low) = 0.4 V max - supports direct interfacing with 1.8 V/3.3 V microcontroller GPIOs without level-shifting. |
Pinout & Package
TPS71750QDSERQ1 is packaged in a 1.5-mm × 1.5-mm, 6-pin WSON (DSE) package with exposed thermal pad - optimized for space-constrained automotive PCBs requiring high thermal performance in small footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 2.5 V–6.5 V input; requires ≥1 μF ceramic decoupling close to pin for stability and EMI suppression. |
| OUT | Regulated output | Delivers 5.0 V fixed output; minimum 1 μF ceramic capacitor required between OUT and GND for phase margin compliance. |
| GND | Power ground reference | Common return path for IN, OUT, EN, and NR; must be connected to low-impedance PCB ground plane. |
| EN | Active-high enable control | Drives high (>1.2 V) to activate regulator; drives low (<0.4 V) to enter shutdown mode with 0.2–1.5 μA quiescent current. |
| NR | Noise reduction bypass | Connects to 10-nF ceramic capacitor to shunt bandgap reference noise; reduces output spectral noise density by >50% above 10 kHz. |
| N/C | No-connect terminal | Internally unconnected; may be tied to GND to enhance thermal dissipation via PCB copper fill under exposed pad. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C ambient operation with HBM ±2 kV and CDM ±750 V ESD robustness - certified for safety-critical automotive ECUs. |
| Ultra-low noise with NR pin | 30 μVRMS output noise (100 Hz–100 kHz) reduced further by optional 10-nF NR capacitor - enables clean power for high-speed ADCs and RF synthesizers. |
| High-bandwidth PSRR | 70 dB rejection at 1 kHz and 67 dB at 100 kHz - maintains signal integrity in noisy 12 V automotive environments with switching DC/DC pre-regulators. |
| Fast transient response | Sub-10 μs recovery from 50 mA load steps - prevents brownout during burst-mode MCU execution or sensor frame capture events. |
| Small-footprint WSON-6 | 1.5 mm × 1.5 mm body with thermal pad - saves >60% board area vs. SOT-23 while improving θJA to 190.5°C/W for thermally dense ADAS modules. |
Applications
| Camera Sensor Power | Microcontroller Core Supply |
|---|---|
Use Scenario: Powers CMOS image sensor analog and digital rails in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise post-regulator supplying clean 5.0 V to sensor analog front-end and ISP core. Use Value: 30 μVRMS noise and 70 dB PSRR prevent fixed-pattern noise and clock jitter in high-dynamic-range video capture. |
Use Scenario: Supplies 5.0 V core voltage to automotive-grade MCUs (e.g., RH850, S32K) in body control units. IC Role / Device Role / Timing Role: Primary LDO for MCU I/O and peripheral domains requiring stable voltage during CAN/LIN bus activity. Use Value: 150 mA capacity and fast load transient response prevent reset faults during simultaneous peripheral activation. |
| ADAS Radar Signal Chain | Infotainment Audio Codec Supply |
Use Scenario: Powers low-noise LNA and mixer stages in 77 GHz radar transceivers. IC Role / Device Role / Timing Role: Ultra-low-noise bias source for RF signal chain components operating near phase noise limits. Use Value: NR pin + 10-nF capacitor reduces integrated noise floor by 12 dB, enabling higher SNR in Doppler detection. |
Use Scenario: Supplies 5.0 V to audio codecs and Class D amplifiers in head unit systems. IC Role / Device Role / Timing Role: Clean power source isolating audio circuitry from noisy DC/DC converter ripple. Use Value: 45 dB PSRR at 1 MHz suppresses switching artifacts from 2 MHz buck converters, eliminating audible beat tones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS71733QDSERQ1 | Fixed 3.3 V output; identical PSRR, noise, package, and AEC-Q100 Grade 1 spec - differs only in output voltage. | Suitable for 3.3 V MCU cores or FPGAs where 5 V is not required; same layout and BOM reuse possible. | Select when system requires 3.3 V instead of 5 V; no design changes needed beyond output voltage verification. |
| TLV70750QDSERQ1 | Lower PSRR (55 dB @ 1 kHz), higher ground current (120 μA), no NR pin - but lower cost and same 1.5-mm WSON-6 footprint. | Acceptable for non-noise-sensitive digital loads like LED drivers or motor controllers where PSRR >60 dB is not mandatory. | Choose for cost-sensitive non-analog applications; avoid in camera or RF signal chains due to missing NR functionality and degraded PSRR. |
Compared with TPS71750QDSERQ1, TPS71733QDSERQ1 offers identical performance at 3.3 V for drop-in voltage scaling, while TLV70750QDSERQ1 trades PSRR and noise performance for cost reduction - making it suitable only for less demanding digital loads.
Availability
TPS71750QDSERQ1 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment audio subsystems, and microcontroller power management requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TPS71750QDSERQ1 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 automotive ICs - with decades of experience in high-reliability power management solutions.
The TPS717-Q1 product line delivers ultra-low-noise, high-PSRR LDOs specifically engineered for automotive analog/RF signal chains including camera sensors, radar front-ends, and infotainment audio - meeting AEC-Q100 Grade 1 requirements.
FAQ
What is the maximum input voltage rating for the TPS71750QDSERQ1?
The TPS71750QDSERQ1 has an absolute maximum input voltage of 7 V. Its recommended operating input range is 2.5 V to 6.5 V. Exceeding 7 V risks permanent damage per the Absolute Maximum Ratings table in the datasheet. For reliable operation in 12 V automotive systems, ensure upstream pre-regulation keeps VIN within specification.
Does the TPS71750QDSERQ1 require an external noise reduction capacitor?
The TPS71750QDSERQ1 includes an NR pin and benefits significantly from a 10-nF ceramic capacitor connected between NR and GND. While functional without it, omitting the capacitor increases output noise by ~2× and degrades PSRR above 10 kHz. The datasheet specifies 10 nF as optimal for achieving the rated 30 μVRMS noise performance.
Can the TPS71750QDSERQ1 be used with a 1-μF output capacitor?
Yes - the TPS71750QDSERQ1 is explicitly designed to be stable with a minimum 1-μF ceramic output capacitor, as confirmed in Section 8.2 and Table 6.3 of the datasheet. This eliminates need for larger, less reliable tantalum or electrolytic capacitors and simplifies layout in space-constrained automotive modules.
What is the shutdown current of the TPS71750QDSERQ1?
The TPS71750QDSERQ1 draws 0.20–1.5 μA shutdown current (ISHDN) when EN ≤ 0.4 V, depending on input voltage and temperature. At 2.5 V ≤ VIN < 4.5 V and TA = –40°C to 125°C, typical shutdown current is 0.20 μA - enabling ultra-low-power sleep modes in always-on automotive telematics and gateway ECUs.
Is the TPS71750QDSERQ1 pin-compatible with other TPS717-Q1 variants?
Yes - all TPS717-Q1 devices in the DSE (1.5-mm × 1.5-mm WSON-6) package share identical pinout, including TPS71750QDSERQ1, TPS71733QDSERQ1, and TPS71718QDSERQ1. This allows voltage-scaling flexibility and BOM consolidation across multiple 5 V, 3.3 V, and 1.8 V designs using the same PCB footprint.
TPS71750QDSERQ1 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):
- 6.5V
- Voltage - Output (Min/Fixed):
- 5V
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TPS71750QDSERQ1 FAQ
1.How can I place an order for TPS71750QDSERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS71750QDSERQ1 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 TPS71750QDSERQ1 reliable?
The price and inventory of TPS71750QDSERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS71750QDSERQ1 is usually 5 days.
3.What payment methods are accepted for TPS71750QDSERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS71750QDSERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS71750QDSERQ1?
TPS71750QDSERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS71750QDSERQ1 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 TPS71750QDSERQ1?
For technical support, including TPS71750QDSERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS71750QDSERQ1 requirements.
6.How does Aetrix verify that TPS71750QDSERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS71750QDSERQ1 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 TPS71750QDSERQ1 meets industry standards.
7.What is the process for return or replacement of TPS71750QDSERQ1?
All TPS71750QDSERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS71750QDSERQ1, 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 TPS71750QDSERQ1 part is unused and in its original packaging.
Return procedure for TPS71750QDSERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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