UCC2541PWPRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC2541PWPRG4 is a synchronous step-down DC-DC switching controller from Texas Instruments using voltage-mode PWM control with an 8.5V to 35V input range. It supports single-output designs and also allows average current mode operation for enhanced control flexibility. Available in a 20-pin HTSSOP package with worldwide shipping from stock.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- UCC2541PWPRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Voltage-mode PWM control with optional average current mode operation provides versatile loop compensation strategies
- Wide 8.5V to 35V input voltage range covers a broad range of industrial and automotive power supply inputs
- Synchronous rectification support drives both high-side and low-side MOSFETs for high-efficiency step-down conversion
- 20-pin HTSSOP EP package with exposed pad improves thermal dissipation for high-frequency operation
Applications
The UCC2541PWPRG4 is designed for synchronous buck converter applications in industrial power supplies, telecom equipment, and high-performance computing systems requiring regulated outputs from 12V or higher bus voltages. Its wide input range and average current mode capability make it suitable for battery-powered industrial equipment and energy storage systems. The device is also used in DC-DC modules where precise output regulation and high efficiency across load ranges are critical.
Specifications
| YTEOL | 0 |
| Additional Feature | AVERAGE CURRENT MODE OPERATION IS ALSO POSSIBLE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 35V |
| Input Voltage-Min | 8.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 3.5A |
| Output Voltage-Max | 3.35V |
| Output Voltage-Min | 3.28V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 30mA |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 330kHz |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What control mode does the UCC2541PWPRG4 use?
The UCC2541PWPRG4 primarily uses voltage-mode PWM control for the step-down regulator loop. Additionally, it supports average current mode operation as an alternative control technique, giving designers flexibility to optimize the control loop for better transient response or current limiting behavior depending on the application requirements.
What is the input voltage range of the UCC2541PWPRG4?
The UCC2541PWPRG4 accepts input voltages from 8.5V minimum to 35V maximum, with a nominal operating voltage of 12V. This wide input range makes it suitable for industrial 24V bus systems, automotive 12V rails, and telecom 48V-derived supplies, accommodating real-world supply variations and transients.
Does the UCC2541PWPRG4 support synchronous rectification?
Yes, the UCC2541PWPRG4 is specifically designed as a synchronous step-down controller, meaning it generates complementary gate drive signals for both the high-side and low-side power MOSFETs. Synchronous rectification eliminates the body diode conduction losses of the low-side switch, significantly improving converter efficiency compared to non-synchronous designs.
What package is the UCC2541PWPRG4 available in?
The UCC2541PWPRG4 comes in a 20-pin HTSSOP package with an exposed pad (EP) for enhanced thermal conductivity. The exposed pad can be soldered to the PCB ground plane to reduce thermal resistance and improve heat dissipation, which is particularly beneficial at high switching frequencies or under sustained heavy load conditions.
What are typical applications for the UCC2541PWPRG4?
Typical applications include point-of-load DC-DC converters for industrial control systems, power supply modules for telecom base stations, server voltage regulator modules (VRMs), and battery management systems. Its wide input range and synchronous driving capability also make it useful for solar charge controllers and DC-coupled energy storage converter designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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