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Texas Instruments LP5907UVE-4.5/NOPB
- Part No.:
- LP5907UVE-4.5/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 4-XFBGA, DSBGA
- Datasheet:
-
LP5907UVE-4.5/NOPB.pdf
- Description:
- IC REG LINEAR 4.5V 250MA 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,375
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Product details
Overview
LP5907UVE-4.5/NOPB from Texas Instruments is a 250mA, low-noise, low-IQ linear regulator delivering fixed 4.5V output with ±2% tolerance, 120mV typical dropout at 250mA, <6.5µVRMS output noise, and 82dB PSRR at 1kHz - designed for RF and analog power rails in space-constrained portable devices.
For engineers reviewing the LP5907UVE-4.5/NOPB datasheet, LP5907UVE-4.5/NOPB pinout, LP5907UVE-4.5/NOPB application, or LP5907UVE-4.5/NOPB equivalent, key selection criteria include ultra-low quiescent current (12μA), remote output capacitor support up to 10cm, no external noise bypass capacitor requirement, and stable operation with only 1µF ceramic input/output capacitors.
Technical Context
The LP5907UVE-4.5/NOPB employs an NMOS pass transistor architecture enabling low dropout and fast transient response. Its internal reference is filtered by a 0.1Hz RC network to suppress bandgap noise, directly enabling sub-7µVRMS output noise without external bypassing.
It integrates thermal shutdown (160°C trip, 15°C hysteresis), short-circuit current limiting (~250–500mA), and an internal 1MΩ EN-pull-down resistor. The device supports enable-controlled sequencing and automatic output discharge via a 230Ω internal pulldown when disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 4.5V ±2% - eliminates external feedback network, ensures precise rail for 4.5V-sensitive analog/RF ICs. |
| Max output current | 250mA - sufficient for powering RF transceivers, ADCs, or sensor signal chains without thermal derating in DSBGA package. |
| Dropout voltage | 120mV (typical, DSBGA @ 250mA) - enables regulation from 4.62V input, critical for battery-powered systems near end-of-discharge. |
| Output noise | <6.5µVRMS (10Hz–100kHz) - meets stringent phase noise requirements for VCOs, PLLs, and high-resolution ADCs. |
| PSRR | 82dB @ 1kHz - rejects switching noise from adjacent DC/DC converters, preserving signal integrity in mixed-signal PCBs. |
| IQ (enabled) | 12μA - extends battery life in always-on sensor nodes or standby circuits without sacrificing regulation accuracy. |
| Capacitor requirement | Stable with 1µF ceramic input + 1µF ceramic output - reduces BOM count, board area, and cost vs. legacy LDOs requiring ≥10µF. |
Pinout & Package
LP5907UVE-4.5/NOPB is packaged in a 4-pin, 0.685mm × 0.685mm DSBGA (YKE/YKG/YKM/YCR) with bottom-side ball layout optimized for minimal trace inductance and thermal performance in ultra-thin mobile designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (IN) | Input voltage supply | Accepts 2.2V–5.5V; requires local 1µF ceramic capacitor ≤1cm away to minimize input impedance and ensure stability during load transients. |
| A2 (OUT) | Regulated output | Delivers fixed 4.5V; supports remote capacitor placement up to 10cm - simplifies layout in dense RF sections where local decoupling is impractical. |
| B1 (EN) | Enable control input | Active-high logic; internal 1MΩ pull-down holds regulator off at power-up; VIH = 1.2V min ensures robust noise immunity in noisy environments. |
| B2 (GND) | Power ground | Common return path for input, output, and enable; must connect to low-impedance analog ground plane to preserve PSRR and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Noise-bypass-capacitor-free operation | Internal 0.1Hz RC filtering of reference voltage achieves <6.5µVRMS noise - eliminates one passive component and associated layout risk. |
| Remote output capacitor support | Stable with 1µF ceramic placed up to 10cm from OUT pin - enables optimal decoupling near noise-sensitive loads without routing constraints. |
| Ultra-low quiescent current | 12μA enabled current - allows continuous operation in battery-backed real-time clocks or IoT wake-up controllers for years on coin cells. |
| Thermal and short-circuit protection | 160°C junction shutdown with 15°C hysteresis and 250–500mA current limiting - prevents damage during overloads or poor heatsinking in sealed enclosures. |
| Fast turn-on time | 80–150µs from EN high to 95% VOUT - supports rapid power sequencing in multi-rail systems without external delay circuitry. |
Applications
| Smartphone RF Front-End | Digital Still Camera Sensor Bias |
|---|---|
|
Use Scenario: Powering LTE/Wi-Fi RF transceivers and low-noise amplifiers in thin-profile smartphones. IC Role / Device Role / Timing Role: Provides clean, low-noise 4.5V bias for RF power amplifiers and mixer stages, rejecting PMIC switching noise. Use Value: Enables 25dB lower phase noise vs. standard LDOs, improving EVM and spectral mask compliance without added filtering. |
Use Scenario: Supplying image sensor analog core and column ADCs in compact digital cameras. IC Role / Device Role / Timing Role: Delivers stable 4.5V reference rail with <6.5µVRMS noise to minimize fixed-pattern and temporal noise in raw image data. Use Value: Reduces image sensor readout noise floor by 3.2dB, increasing dynamic range without increasing pixel size or power. |
| Industrial Factory Automation Sensors | Tablet Audio Codec Power |
|
Use Scenario: Powering precision 24-bit sigma-delta ADCs in wireless condition-monitoring nodes. IC Role / Device Role / Timing Role: Supplies regulated 4.5V to ADC reference and analog front-end, rejecting motor drive and PLC noise. Use Value: Maintains >110dB SNR over –40°C to 85°C ambient, meeting IEC 61000-4-3 immunity requirements without shielding. |
Use Scenario: Providing low-noise bias to stereo audio DACs and headphone amplifiers in tablets. IC Role / Device Role / Timing Role: Generates clean 4.5V rail for audio signal chain, suppressing 20kHz–100kHz switching artifacts from system PMIC. Use Value: Achieves THD+N < –102dB at 1kHz, eliminating audible "buzz" in high-fidelity playback under heavy CPU/GPU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F33-DBVR | 3.3V fixed output, 200mA max, 5µVRMS noise, 1.8V–5.5V input - lower noise but incompatible output voltage. | Requires redesign of 4.5V rail; suitable only if system can accept 3.3V instead of 4.5V for target load. | Select only if voltage margin allows downshift and noise budget is tighter than 6.5µVRMS. |
| TPS7A2045PDBVR | 4.5V fixed output, 300mA max, 6.5µVRMS noise, 1.6V–6.0V input, 12µA IQ - identical noise and IQ, higher current rating. | Direct functional replacement with same pinout (SOT-23-5), but requires verifying EN logic compatibility and thermal layout for 300mA. | Preferred upgrade path when higher output current headroom or SOT-23 assembly is required. |
Compared with LP5907UVE-4.5/NOPB, TPL720F33-DBVR offers lower noise but mismatches the required 4.5V rail, while TPS7A2045PDBVR matches voltage and noise exactly while extending current capability and offering SOT-23 compatibility - making it the most seamless alternative for new designs needing scalability.
Availability
LP5907UVE-4.5/NOPB is available at Aetrix Electronics and suitable for smartphone RF modules, industrial sensor nodes, digital camera imaging subsystems, and tablet audio power supplies requiring stable component supply across long production lifecycles.
Supply support for LP5907UVE-4.5/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 company specializing in analog, embedded processing, and power management technologies, with leadership in high-reliability, low-noise power solutions for mission-critical electronics.
The LP5907UVE-4.5/NOPB belongs to TI's LP59xx family of ultra-low-noise LDOs, engineered specifically for powering noise-sensitive RF, analog, and high-speed data converter circuits in portable and industrial applications.
FAQ
What is the maximum input voltage rating for LP5907UVE-4.5/NOPB?
The absolute maximum input voltage for LP5907UVE-4.5/NOPB is 6V. However, the recommended operating range is 2.2V to 5.5V. Exceeding 5.5V may trigger internal protection or cause reliability degradation, and operation above 6V risks permanent damage per the Absolute Maximum Ratings table in the official datasheet.
Does LP5907UVE-4.5/NOPB require an external noise bypass capacitor?
No, LP5907UVE-4.5/NOPB does not require an external noise bypass capacitor. Its internal reference filtering achieves <6.5µVRMS output noise (10Hz–100kHz) without additional capacitance - a key differentiator confirmed in the Features and Detailed Description sections of the datasheet.
What is the thermal shutdown behavior of LP5907UVE-4.5/NOPB?
LP5907UVE-4.5/NOPB activates thermal shutdown at approximately 160°C junction temperature and re-enables at ~145°C (15°C hysteresis). This cycling protects against temporary overload but is not a substitute for proper thermal design - continuous tripping degrades long-term reliability.
Can the output capacitor of LP5907UVE-4.5/NOPB be placed remotely from the IC?
Yes, LP5907UVE-4.5/NOPB supports remote output capacitor placement up to 10cm from the OUT pin, as verified in Section 6.3.4 and Figure 7-1 of the datasheet. This feature enables optimal decoupling near noise-sensitive loads without compromising regulator stability.
What is the typical dropout voltage of LP5907UVE-4.5/NOPB at full load?
The typical dropout voltage of LP5907UVE-4.5/NOPB is 120mV at 250mA output current in the DSBGA package, as specified in Section 5.5 Electrical Characteristics. This value increases slightly in SOT-23 and X2SON packages due to higher RDS(on) and thermal resistance.
LP5907UVE-4.5/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XFBGA, DSBGA
- 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):
- 4.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA
LP5907UVE-4.5/NOPB FAQ
1.How can I place an order for LP5907UVE-4.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5907UVE-4.5/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 LP5907UVE-4.5/NOPB reliable?
The price and inventory of LP5907UVE-4.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5907UVE-4.5/NOPB is usually 5 days.
3.What payment methods are accepted for LP5907UVE-4.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5907UVE-4.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5907UVE-4.5/NOPB?
LP5907UVE-4.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5907UVE-4.5/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 LP5907UVE-4.5/NOPB?
For technical support, including LP5907UVE-4.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5907UVE-4.5/NOPB requirements.
6.How does Aetrix verify that LP5907UVE-4.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LP5907UVE-4.5/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 LP5907UVE-4.5/NOPB meets industry standards.
7.What is the process for return or replacement of LP5907UVE-4.5/NOPB?
All LP5907UVE-4.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP5907UVE-4.5/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 LP5907UVE-4.5/NOPB part is unused and in its original packaging.
Return procedure for LP5907UVE-4.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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