Texas Instruments LP5907SNX-3.2/NOPB
- Part No.:
- LP5907SNX-3.2/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
LP5907SNX-3.2/NOPB.pdf
- Description:
- IC REG LINEAR 3.2V 250MA 4X2SON
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LP5907SNX-3.2/NOPB from Texas Instruments is a fixed 3.2V, 250mA low-noise LDO regulator designed for RF and analog power rails. It delivers <6.5µVRMS output noise, 82dB PSRR at 1kHz, 12µA quiescent current, and 120mV typical dropout at full load - enabling clean, efficient biasing of sensitive receivers, ADCs, and PLLs in space-constrained portable systems.
For engineers reviewing the LP5907SNX-3.2/NOPB datasheet, LP5907SNX-3.2/NOPB pinout, LP5907SNX-3.2/NOPB application, or LP5907SNX-3.2/NOPB equivalent, key selection considerations include remote capacitor placement capability (up to 10cm), no external noise bypass requirement, thermal shutdown at 160°C, ±2% output tolerance, and compatibility with 1µF ceramic input/output capacitors.
Technical Context
The LP5907SNX-3.2/NOPB employs an internal low-pass RC filter (–3dB at ~0.1Hz) to suppress reference noise before amplification, enabling ultra-low output noise without a dedicated bypass capacitor. Its enable logic includes a 1MΩ internal pulldown and defined VIH/VIL thresholds (1.2V/0.4V), supporting robust digital control in battery-powered systems.
It features active output discharge via a 230Ω internal pulldown when disabled, ensuring rapid VOUT decay and preventing floating rail conditions. Stability is guaranteed with only 1µF ceramic capacitors on IN and OUT - validated across –40°C to 125°C junction temperature and compatible with DSBGA, X2SON, and SOT-23 packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.2V ±2% - ensures stable bias for 3.3V-tolerant analog/RF ICs without external feedback network. |
| Max Output Current | 250mA - sufficient for powering single-core processors, RF transceivers, or multi-channel ADCs in portable devices. |
| Output Noise | <6.5µVRMS (10Hz–100kHz) - eliminates need for external noise filter capacitor, reducing BOM count and PCB area. |
| PSRR | 82dB at 1kHz - effectively suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Quiescent Current | 12µA (enabled, no load) - extends battery life in always-on sensor nodes and standby circuits. |
| Dropout Voltage | 120mV (typical, 250mA, DSBGA) - enables operation from 3.3V supply while maintaining regulation down to 3.08V input. |
| Operating Temp | –40°C to 125°C junction - qualified for industrial and automotive cabin applications requiring extended thermal range. |
Pinout & Package
LP5907SNX-3.2/NOPB is packaged in a 4-pin X2SON (DQN) package measuring 1mm × 1mm with wettable flanks, optimized for automated optical inspection and high-density layouts. Thermal pad is present and recommended to be connected to GND for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.2V–5.5V; requires ≥1µF ceramic capacitor placed ≤1cm from pin to ensure stability and transient response. |
| OUT | Regulated output | Delivers fixed 3.2V; supports remote capacitor placement up to 10cm away due to inherent loop stability design. |
| EN | Enable control input | Active-high logic; internal 1MΩ pulldown holds device off at power-up; VIH = 1.2V min ensures reliable turn-on from GPIOs. |
| GND | Power ground | Common return path for IN, OUT, and EN; must be low-impedance analog ground plane connection for noise integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Noise-bypass-capacitor-free operation | Internal RC filtering reduces reference noise to <6.5µVRMS - eliminates one passive component and associated layout complexity. |
| Remote output capacitor support | Stable with 1µF ceramic cap placed up to 10cm from OUT pin - enables flexible PCB routing for tight RF/analog partitions. |
| Active output discharge | 230Ω internal pulldown discharges VOUT rapidly when EN is low - prevents latch-up or unintended wake-up in multi-rail systems. |
| Ultra-low IQ with full functionality | 12µA quiescent current while delivering 250mA - maintains regulation and protection features without sacrificing efficiency. |
| Thermal overload protection | Shuts down at 160°C junction temp with 15°C hysteresis - protects against sustained overloads without requiring external thermal management. |
Applications
| Smartphone RF Front-End | Digital Still Camera Sensor Bias |
|---|---|
Use Scenario: Powering LTE/Wi-Fi transceiver LNAs and mixers in compact smartphone modules. IC Role / Device Role / Timing Role: Low-noise local voltage source for RF signal chain components requiring minimal phase noise contribution. Use Value: 82dB PSRR at 1kHz rejects DC/DC ripple; <6.5µVRMS noise avoids degrading receiver sensitivity or EVM. |
Use Scenario: Supplying image sensor analog core and column ADCs during high-speed burst capture. IC Role / Device Role / Timing Role: Stable, fast-transient LDO delivering clean 3.2V bias synchronized with exposure timing. Use Value: 40mV load transient response (1mA↔250mA) prevents pixel corruption; 120mV dropout enables use with shared 3.3V rail. |
| Industrial IoT Sensor Node | Factory Automation PLC I/O Module |
Use Scenario: Battery-powered wireless node with precision ADC, MEMS accelerometer, and BLE radio. IC Role / Device Role / Timing Role: Primary power rail for mixed-signal SoC during active sensing and transmission cycles. Use Value: 12µA IQ extends 10-year battery life; –40°C to 125°C rating supports unheated outdoor deployment. |
Use Scenario: Isolated analog input channel powering 24-bit delta-sigma ADC and signal conditioning op-amps. IC Role / Device Role / Timing Role: Clean auxiliary supply decoupled from noisy digital/motor control domains. Use Value: Remote capacitor placement allows physical separation from switching noise sources; ±2% tolerance meets 0.1% system accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LPGEDR | Same 3.2V fixed output, but 300mA rated and 20µA IQ; uses different internal architecture with higher PSRR (90dB @ 1kHz). | Better suited for higher-current analog loads (e.g., multi-channel DACs); slightly larger X2SON-6 package (1.5mm × 1.5mm). | Select when >250mA headroom or enhanced PSRR is required; verify layout compatibility with 6-pin footprint. |
| TPS7A2032PDQNR | 3.2V fixed, 300mA, 6.5µA IQ, <3.5µVRMS noise; supports 1µF caps but requires tighter layout for optimal noise performance. | Superior noise performance for ultra-sensitive applications (e.g., medical EEG front-ends); newer architecture with lower thermal resistance. | Prefer for next-gen designs prioritizing lowest possible noise; note stricter layout guidelines for noise-sensitive placements. |
Compared with TPL7407LPGEDR and TPS7A2032PDQNR, the LP5907SNX-3.2/NOPB offers proven field reliability, broader temperature qualification (–40°C to 125°C), and relaxed layout rules for remote capacitor placement - making it ideal for cost-sensitive, high-volume portable and industrial applications where moderate noise and 250mA capacity are sufficient.
Availability
LP5907SNX-3.2/NOPB is available at Aetrix Electronics and suitable for smartphone RF subsystems, digital camera sensor biasing, industrial IoT sensor nodes, factory automation analog I/O modules, and portable medical devices requiring stable component supply with consistent parametric performance across production lots.
Supply support for LP5907SNX-3.2/NOPB 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 experience in high-reliability power solutions for industrial, automotive, and communications markets.
The LP5907SNX-3.2/NOPB belongs to TI's LP59xx family of low-noise, low-IQ LDOs engineered specifically for noise-sensitive RF and analog circuits in battery-powered and thermally constrained applications.
FAQ
What is the maximum input voltage for LP5907SNX-3.2/NOPB?
The absolute maximum input voltage for LP5907SNX-3.2/NOPB is 6V, but the recommended operating range is 2.2V to 5.5V. Exceeding 5.5V may trigger internal protection or reduce long-term reliability. For continuous operation, maintain VIN ≤ 5.5V and ensure (VIN – 3.2V) ≥ dropout voltage under load - e.g., ≥3.32V input needed for 250mA in DSBGA package.
Does LP5907SNX-3.2/NOPB require an external noise bypass capacitor?
No, LP5907SNX-3.2/NOPB does not require an external noise bypass capacitor. Its internal low-pass RC filter (–3dB at ~0.1Hz) suppresses reference noise, enabling <6.5µVRMS output noise with only 1µF ceramic input and output capacitors - verified across –40°C to 125°C.
What is the function of the EN pin on LP5907SNX-3.2/NOPB?
The EN pin on LP5907SNX-3.2/NOPB is an active-high enable input with an internal 1MΩ pulldown resistor. Driving EN ≥1.2V (VIH) enables regulation; pulling EN ≤0.4V (VIL) disables the output and activates the 230Ω internal pulldown to discharge VOUT. This ensures safe power sequencing and prevents floating outputs during sleep modes.
Can the output capacitor be placed remotely from LP5907SNX-3.2/NOPB?
Yes, LP5907SNX-3.2/NOPB supports remote output capacitor placement up to 10cm from the OUT pin while maintaining stability with a 1µF ceramic capacitor. This is enabled by its robust control-loop design and has been validated in TI's application notes for RF partitioning and noise isolation in dense PCB layouts.
What thermal protection features does LP5907SNX-3.2/NOPB include?
LP5907SNX-3.2/NOPB includes thermal shutdown that activates at ~160°C junction temperature and re-enables at ~145°C (15°C hysteresis). This protects against temporary overloads but is not a substitute for proper thermal design - continuous cycling indicates insufficient copper pour or excessive power dissipation requiring layout or input voltage review.
LP5907SNX-3.2/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XDFN 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):
- 3.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 250mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 25 µA
- Current - Supply (Max):
- 425 µA
- PSRR:
- 90dB ~ 60dB (100Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-X2SON (1x1)
LP5907SNX-3.2/NOPB FAQ
1.How can I place an order for LP5907SNX-3.2/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5907SNX-3.2/NOPB 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 LP5907SNX-3.2/NOPB reliable?
The price and inventory of LP5907SNX-3.2/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5907SNX-3.2/NOPB is usually 5 days.
3.What payment methods are accepted for LP5907SNX-3.2/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5907SNX-3.2/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5907SNX-3.2/NOPB?
LP5907SNX-3.2/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5907SNX-3.2/NOPB 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 LP5907SNX-3.2/NOPB?
For technical support, including LP5907SNX-3.2/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5907SNX-3.2/NOPB requirements.
6.How does Aetrix verify that LP5907SNX-3.2/NOPB is sourced from the original manufacturer or authorized distributors?
All LP5907SNX-3.2/NOPB 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 LP5907SNX-3.2/NOPB meets industry standards.
7.What is the process for return or replacement of LP5907SNX-3.2/NOPB?
All LP5907SNX-3.2/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP5907SNX-3.2/NOPB, 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 LP5907SNX-3.2/NOPB part is unused and in its original packaging.
Return procedure for LP5907SNX-3.2/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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