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Texas Instruments LM2750LD-5.0
- Part No.:
- LM2750LD-5.0
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LM2750LD-5.0.pdf
- Description:
- IC REG CHARGE PUMP 5V 1 10WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,136
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Product details
Overview
LM2750LD-5.0 from Texas Instruments is a fixed 5.0V ±4% switched-capacitor boost regulator delivering up to 120mA output current at VIN ≥2.9V and 40mA down to VIN = 2.7V, operating across 2.7V–5.6V input range with 1.7MHz fixed switching frequency and <4mVp-p output ripple (COUT = 10µF, IOUT = 100mA). It serves as a low-noise, inductorless power supply for LED backlighting and SIM card power in space-constrained portable electronics.
For engineers reviewing the LM2750LD-5.0 datasheet, LM2750LD-5.0 pinout, LM2750LD-5.0 application, or LM2750LD-5.0 equivalent, key selection considerations include its WSON-10 package thermal performance (θJA = 55°C/W), pre-regulation architecture minimizing input current ripple, shutdown current <2µA, and strict 5.0V regulation tolerance - all critical for battery-powered Li-ion-to-5V conversion where board area and EMI are constrained.
Technical Context
The LM2750LD-5.0 implements a two-phase non-overlapping switched-capacitor doubler with internal pre-regulation: during φ₁, CFLY charges to VIN; during φ₂, it stacks atop VIN to generate ~2×VIN, then linearly regulates via modulated pass-transistor resistance to deliver precise 5.0V. This architecture eliminates inductors while achieving 85% peak efficiency and 70% average efficiency across 2.9V–4.2V Li-ion input.
It integrates soft-start (500µs typical turn-on time), overcurrent limiting (300mA typ.), thermal shutdown (150°C trip), and an active-low SD pin with internal 200kΩ pull-down. Pin 3 is hardwired to GND (not FB), distinguishing it from the adjustable LM2750-ADJ variant, and all ground connections - pins 3, 5, 6, and DAP - must be low-impedance for stable operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±4% - tight regulation ensures stable 5V rail for sensitive analog/RF circuitry without external feedback network. |
| Input Voltage Range | 2.7V to 5.6V - supports full Li-ion discharge curve (2.7V cutoff) and accommodates 3.3V/5V system rails. |
| Max Output Current | 120mA @ VIN ≥2.9V - sufficient for white LED strings or dual-SIM card power without thermal derating under typical PCB layout. |
| Switching Frequency | 1.7MHz fixed - enables use of small 1µF ceramic flying capacitor and minimizes audible noise and EMI filtering requirements. |
| Output Ripple | <4mVp-p @ COUT=10µF, IOUT=100mA - low noise critical for audio amplifier supplies and display bias rails. |
| Shutdown Current | <2µA - preserves battery life in standby mode for portable devices with frequent sleep/wake cycles. |
| Thermal Resistance | θJA = 55°C/W - WSON-10 package with DAP enables high-power operation without heatsink or airflow in compact layouts. |
Pinout & Package
LM2750LD-5.0 is housed in a 3mm × 3mm, 10-pin WSON package (TI package code NGY0010A/DSC0010A) with exposed die-attach pad (DAP) for enhanced thermal dissipation. All ground pins - 3, 5, 6, and DAP - must be connected to a low-impedance PCB ground plane using multiple vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | VOUT | Regulated 5.0V output - dual pins reduce trace resistance and improve current sharing for 120mA loads. |
| 3 | GND | Ground reference for LM2750LD-5.0 (hardwired; not FB) - must be connected externally to system ground. |
| 4 | SD | Active-low shutdown - internal 200kΩ pull-down ensures safe default-off state; logic-low ≤0.4V disables regulator. |
| 5, 6 | GND | Primary ground terminals - connect directly to input/output capacitor grounds and DAP for minimal loop inductance. |
| 7 | CAP− | Flying capacitor negative terminal - forms charge-transfer path with CAP+ during φ₁ and φ₂ phases. |
| 8, 9 | VIN | Input voltage supply - dual pins lower impedance and distribute current for stable pre-regulation under dynamic load. |
| 10 | CAP+ | Flying capacitor positive terminal - completes flying capacitor connection; phase timing critical for voltage doubling. |
| DAP | GND / Thermal Pad | Exposed die-attach pad - soldered to PCB copper pour for thermal conduction; electrically tied to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Inductorless architecture | Eliminates magnetic components and associated EMI; uses only three 0603/0805 ceramic capacitors (CIN, COUT, CFLY) for ultra-compact footprint. |
| Pre-regulation topology | Modulates input-switch on-resistance before voltage doubling, reducing input current ripple to negligible levels - preserves battery line integrity. |
| Tightly controlled soft-start | 500µs typical VOUT ramp time prevents inrush current spikes that could brown-out host microcontrollers or reset PMICs. |
| Integrated protection | 300mA overcurrent limit + thermal shutdown (150°C) + ESD-hardened design (2kV HBM) ensure robustness in handheld and SIM-card applications. |
| Low-noise 5.0V output | 4mVp-p ripple with 10µF COUT meets stringent noise requirements for audio amplifiers and precision analog front-ends. |
Applications
| White LED Display Backlighting | Cellular Phone SIM Card Power |
|---|---|
Use Scenario: Driving 3–5 white LEDs in series for small LCD displays in feature phones or wearables with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Provides regulated 5.0V rail from 2.7–4.2V battery; replaces inductive boost converters to eliminate EMI-sensitive magnetics near RF sections. Use Value: Enables <1mm profile designs with <4mVp-p ripple - prevents visible LED flicker and avoids interference with GSM/UMTS transceivers. |
Use Scenario: Powering dual SIM card slots requiring stable 5V supply during hot-swap and simultaneous card activation. IC Role / Device Role / Timing Role: Delivers fast turn-on (<1ms) and low shutdown current (<2µA) to meet 3GPP SIM power sequencing and leakage specs. Use Value: Guarantees 5.0V ±4% under 40mA load at 2.7V input - ensures reliable SIM card initialization and data retention during deep battery discharge. |
| Audio Amplifier Bias Supply | Li-Ion to 5V General-Purpose Conversion |
Use Scenario: Generating clean 5V bias for Class AB headphone amplifiers in portable media players. IC Role / Device Role / Timing Role: Supplies low-noise, ripple-free 5V rail independent of noisy digital supply domains; operates with 1.7MHz switching to avoid audio band. Use Value: Achieves <4mVp-p output ripple - eliminates audible hiss and preserves SNR >95dB in high-fidelity audio paths. |
Use Scenario: Replacing linear regulators in legacy 5V subsystems powered by Li-ion batteries to improve efficiency and runtime. IC Role / Device Role / Timing Role: Acts as drop-in efficiency upgrade: accepts same 2.7–5.6V input, delivers identical 5V output, but with 85% peak efficiency vs. ~40% for LDOs. Use Value: Extends battery life by >2× in always-on peripherals (e.g., USB interface, sensor hubs) without redesigning PCB layout or BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60403DBVR | Fixed 5V output, 60mA max IOUT, 1MHz fSW, SOT-23-5 package | Lower output current and no thermal pad - unsuitable for >60mA continuous loads or high-ambient environments | Select when board space is extreme constraint and load <60mA; verify thermal margin with θJA = 220°C/W. |
| MAX682ESA+ | Adjustable 2.5–5.5V output, 100mA max IOUT, 1.1MHz fSW, SO-8 package | Requires external feedback resistors; lacks pre-regulation → higher input ripple; larger footprint than WSON-10 | Choose only if adjustable VOUT is mandatory; expect higher input noise and reduced efficiency vs. LM2750LD-5.0. |
Compared with TPS60403DBVR and MAX682ESA+, the LM2750LD-5.0 delivers 2× higher output current in half the footprint with superior thermal performance and integrated pre-regulation - making it the optimal choice for compact, high-efficiency 5V generation from Li-ion sources where noise and thermal headroom are critical.
Availability
LM2750LD-5.0 is available at Aetrix Electronics and suitable for white LED backlighting, cellular SIM card power, audio amplifier bias supplies, and general-purpose Li-ion-to-5V conversion requiring stable component supply across production lifecycles.
Supply support for LM2750LD-5.0 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 ICs, with decades of expertise in high-efficiency DC/DC conversion and battery-powered system solutions.
The LM2750LD-5.0 belongs to TI's switched-capacitor regulator product line, engineered specifically for space- and noise-constrained portable electronics needing inductorless 5V generation from single-cell Li-ion batteries.
FAQ
What is the minimum input voltage required for LM2750LD-5.0 to deliver full 120mA output current?
The LM2750LD-5.0 requires VIN ≥2.9V to sustain 120mA output current while maintaining 5.0V ±4% regulation. Below 2.9V - down to 2.7V - maximum output current is reduced to 40mA to preserve regulation accuracy and thermal safety. This behavior is defined in the Operating Ratings table of the official datasheet (SNVS180L), and reflects the device's pre-regulation architecture limiting available headroom at low input voltages.
Can LM2750LD-5.0 replace an inductive boost converter in my design?
Yes, the LM2750LD-5.0 is explicitly designed as an inductorless alternative to inductive boost converters, requiring only three ceramic capacitors (CIN, COUT, CFLY). Its 1.7MHz switching frequency and pre-regulation architecture yield low EMI and input ripple - making it suitable for RF-sensitive applications like cellular handsets where magnetic components cause interference. However, verify output current and thermal limits match your load profile.
What is the function of Pin 3 on LM2750LD-5.0, and how does it differ from LM2750-ADJ?
On LM2750LD-5.0, Pin 3 is permanently configured as GND and must be externally connected to system ground. This differs from the LM2750-ADJ variant, where Pin 3 serves as the FB (feedback) input for setting adjustable output voltage. The LD suffix confirms the fixed 5.0V version - no external resistors are needed, simplifying layout and eliminating feedback network tolerances.
How does the LM2750LD-5.0 achieve low output voltage ripple?
The LM2750LD-5.0 achieves <4mVp-p output ripple through three design elements: (1) 1.7MHz fixed switching frequency enabling small, low-ESR ceramic capacitors; (2) pre-regulation architecture minimizing energy transfer discontinuities; and (3) optimized internal charge-pump timing. Performance is validated with COUT = 10µF per Electrical Characteristics (SNVS180L), and ripple scales predictably with COUT value and ESR.
Is thermal derating required for LM2750LD-5.0 in a standard 4-layer PCB layout?
No derating is typically required for LM2750LD-5.0 under recommended conditions: 120mA load, VIN ≤4.2V, and proper PCB layout (DAP soldered to ≥1cm² internal ground plane with ≥4 thermal vias). Its WSON-10 package has θJA = 55°C/W - significantly better than industry-standard SOT-23 alternatives - and thermal shutdown engages only at 150°C junction temperature, providing ample safety margin in most portable applications.
LM2750LD-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.6V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 120mA
- Frequency - Switching:
- 1.7MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-WSON (3x3)
LM2750LD-5.0 FAQ
1.How can I place an order for LM2750LD-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2750LD-5.0 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 LM2750LD-5.0 reliable?
The price and inventory of LM2750LD-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2750LD-5.0 is usually 5 days.
3.What payment methods are accepted for LM2750LD-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2750LD-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2750LD-5.0?
LM2750LD-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2750LD-5.0 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 LM2750LD-5.0?
For technical support, including LM2750LD-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2750LD-5.0 requirements.
6.How does Aetrix verify that LM2750LD-5.0 is sourced from the original manufacturer or authorized distributors?
All LM2750LD-5.0 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 LM2750LD-5.0 meets industry standards.
7.What is the process for return or replacement of LM2750LD-5.0?
All LM2750LD-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM2750LD-5.0, 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 LM2750LD-5.0 part is unused and in its original packaging.
Return procedure for LM2750LD-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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