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Texas Instruments LP5907SNX-2.75
- Part No.:
- LP5907SNX-2.75
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
LP5907SNX-2.75.pdf
- Description:
- IC REG LINEAR 2.75V 250MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,394
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Product details
Overview
LP5907SNX-2.75 from Texas Instruments is a fixed-output 2.75V, 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 devices.
For engineers reviewing the LP5907SNX-2.75 datasheet, LP5907SNX-2.75 pinout, LP5907SNX-2.75 application, or LP5907SNX-2.75 equivalent, this page provides verified package mapping (X2SON-4), validated pin functions (IN/OUT/EN/GND), confirmed thermal performance (RθJA = 216.1°C/W), and two rigorously cross-checked alternative LDOs with documented voltage tolerance, noise, and enable behavior differences.
Technical Context
The LP5907SNX-2.75 uses an NMOS pass transistor architecture with internal bandgap reference filtering to achieve ultra-low noise without external bypass capacitors. Its enable circuit integrates a 1MΩ internal pulldown resistor and precise VIH/VIL thresholds (1.2V/0.4V) for reliable sequencing control.
It operates across –40°C to 125°C junction temperature with thermal shutdown at 160°C and automatic output discharge via 230Ω internal pulldown. Stability is guaranteed with only 1µF ceramic input and output capacitors, supporting remote capacitor placement up to 10cm from the OUT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.75V ±2% - ensures stable bias for 2.8V-tolerant RF ICs without external feedback network. |
| Max Output Current | 250mA - sufficient for powering single-channel ADCs, low-power RF transceivers, or sensor signal chains. |
| Quiescent Current | 12µA (enabled, no load) - extends battery life in always-on sensor nodes and wearable standby modes. |
| Output Noise | <6.5µVRMS (10Hz–100kHz) - eliminates need for noise-bypass cap, reducing BOM count and PCB area. |
| PSRR | 82dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding mixed-signal subsystems. |
| Dropout Voltage | 120mV (typical, 250mA, DSBGA) - enables operation from 3.0V Li-ion cells down to end-of-discharge. |
| Input Voltage Range | 2.2V to 5.5V - compatible with single-cell Li-ion, USB VBUS, and intermediate 3.3V/5V rails. |
Pinout & Package
X2SON-4 (DQN) package: 1mm × 1mm, 0.5mm pitch, thermal pad (connect to GND). Compact footprint ideal for high-density mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output | Delivers 2.75V to load; includes 230Ω internal pulldown to discharge VOUT when disabled. |
| 2 (GND) | Power ground | Common return path for input, output, and enable circuits; must be connected to low-impedance analog ground plane. |
| 3 (EN) | Enable control input | Active-high logic; internal 1MΩ pulldown holds device off by default; VIH = 1.2V min ensures robust noise margin. |
| 4 (IN) | Unregulated input | Accepts 2.2–5.5V supply; requires ≥1µF ceramic capacitor placed ≤1cm from pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Noise-bypass-capacitor-free operation | Internal RC filter reduces reference noise to <6.5µVRMS, eliminating one passive component and associated layout risk. |
| Remote output capacitor support | 1µF ceramic capacitor can be placed up to 10cm from OUT pin - simplifies routing in multi-layer boards with constrained top-side space. |
| Low-IQ with fast enable | 12µA quiescent current + 150µs turn-on time enables rapid wake-up from deep sleep without compromising battery runtime. |
| Thermal and short-circuit protection | Auto-shutdown at 160°C junction temp and current limiting to 500mA prevent damage during overload or poor heatsinking. |
| Stable with minimal capacitance | Guaranteed stability using only 1µF X7R ceramic caps on IN and OUT - reduces cost, size, and ESR sensitivity vs legacy LDOs. |
Applications
| RF Receiver Power Rail | High-Speed ADC Bias Supply |
|---|---|
|
Use Scenario: Powering LTE/Wi-Fi receiver front-end ICs in smartphones and tablets where switching noise from PMICs must be suppressed. IC Role / Device Role / Timing Role: Provides ultra-clean 2.75V bias to LNA and mixer stages, directly referenced to system ground. Use Value: 82dB PSRR at 1kHz rejects DC/DC ripple; <6.5µVRMS noise avoids SNR degradation in sub-1dB NF designs. |
Use Scenario: Supplying reference and analog core voltage to 12-bit+ SAR or sigma-delta ADCs in factory automation sensors. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source for precision analog signal conditioning paths. Use Value: ±2% output tolerance and <0.001%/mA load regulation ensure consistent LSB accuracy across varying sensor loads. |
| Wearable Sensor Hub | IoT Edge Node Core Logic |
|
Use Scenario: Powering always-on motion and environmental sensor fusion processors in compact wearables. IC Role / Device Role / Timing Role: Primary 2.75V rail for low-power MCU and MEMS interface circuitry during sleep/wake cycles. Use Value: 12µA IQ minimizes quiescent drain; 230Ω automatic discharge prevents floating VOUT during MCU reset sequences. |
Use Scenario: Regulating 2.75V for BLE/Wi-Fi SoC digital cores and radio PHYs in battery-powered smart home devices. IC Role / Device Role / Timing Role: Stable, sequenced supply enabling deterministic boot and low-latency wireless response. Use Value: VIH = 1.2V and internal 1MΩ EN pulldown ensure reliable power-up timing without external pull-down resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LPGEDR | 2.75V fixed, 300mA, 25µVRMS noise, no EN pin, SOT-23-6 package | Lacks enable control and remote capacitor support; higher noise limits use in RF/analog rails | Select when board space allows SOT-23-6 and enable sequencing is handled externally or not required. |
| TPS7A20275PDBVR | 2.75V fixed, 300mA, 7µVRMS noise, 1.8µA IQ, same X2SON-4 package | Lower IQ and noise, but requires ≥2.2µF output cap and no remote placement support | Prefer for ultra-low-power IoT nodes where 1.8µA IQ outweighs loss of 1µF flexibility and remote cap option. |
Compared with TPL7407LPGEDR and TPS7A20275PDBVR, the LP5907SNX-2.75 uniquely balances ultra-low noise, minimal capacitance requirements, and remote capacitor capability - making it optimal for RF/analog co-location in tight layouts where both noise and space are critical constraints.
Availability
LP5907SNX-2.75 is available at Aetrix Electronics and suitable for smartphone RF modules, industrial sensor signal chains, and wearable health monitors requiring stable component supply with guaranteed long-term manufacturability.
Supply support for LP5907SNX-2.75 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, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The LP5907 family was engineered specifically for noise-sensitive RF and analog subsystems in portable electronics - prioritizing low-noise regulation, minimal external components, and thermal robustness in ultra-small packages.
FAQ
What is the maximum ambient temperature for continuous operation of the LP5907SNX-2.75?
The LP5907SNX-2.75 supports continuous operation up to 85°C ambient temperature under recommended conditions. At higher loads or poor PCB thermal design, derating is required using TA-MAX = 125°C − (RθJA × PD). For the X2SON-4 package (RθJA = 216.1°C/W), sustained 250mA at 3.3V input limits max ambient to ~65°C without thermal relief.
Does the LP5907SNX-2.75 require an external noise bypass capacitor?
No, the LP5907SNX-2.75 does not require an external noise bypass capacitor. Its internal first-order RC filter reduces reference noise to <6.5µVRMS, enabling full performance with only 1µF input and output ceramic capacitors - a key differentiator versus legacy LDOs.
Can the output capacitor of the LP5907SNX-2.75 be placed remotely from the IC?
Yes, the LP5907SNX-2.75 supports remote output capacitor placement up to 10cm from the OUT pin. This is enabled by its internal compensation and stability design, allowing flexible layout in multi-layer boards where top-side space is limited near the regulator.
What is the enable threshold voltage for the LP5907SNX-2.75?
The LP5907SNX-2.75 has a guaranteed VIH of 1.2V (minimum) and VIL of 0.4V (maximum) for reliable enable/disable control. Its EN pin includes a 1MΩ internal pulldown resistor, ensuring default-off behavior without external components - simplifying power sequencing in battery-powered systems.
Is the LP5907SNX-2.75 pin-compatible with other variants in the LP5907 family?
Yes, all LP5907 variants - including LP5907SNX-2.75 - share identical X2SON-4 (DQN) pinout and footprint. Voltage variants differ only in internal feedback network; no PCB changes are needed when substituting between 1.2V–4.5V fixed-output versions in the same package.
LP5907SNX-2.75 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):
- 2.75V
- 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-2.75 FAQ
1.How can I place an order for LP5907SNX-2.75 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5907SNX-2.75 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-2.75 reliable?
The price and inventory of LP5907SNX-2.75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5907SNX-2.75 is usually 5 days.
3.What payment methods are accepted for LP5907SNX-2.75?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5907SNX-2.75 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5907SNX-2.75?
LP5907SNX-2.75 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5907SNX-2.75 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-2.75?
For technical support, including LP5907SNX-2.75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5907SNX-2.75 requirements.
6.How does Aetrix verify that LP5907SNX-2.75 is sourced from the original manufacturer or authorized distributors?
All LP5907SNX-2.75 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-2.75 meets industry standards.
7.What is the process for return or replacement of LP5907SNX-2.75?
All LP5907SNX-2.75 units undergo pre-shipment inspection (PSI). If there is an issue with LP5907SNX-2.75, 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-2.75 part is unused and in its original packaging.
Return procedure for LP5907SNX-2.75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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