This document is the UCC2541 datasheet, which introduces the main features and characteristics of the product, including high-efficiency synchronous buck operation, dual ±3-A TrueDrive outputs, an on-board programmable oscillator, TR input, parallel average current mode control loop, 3 modes to support 2.7-V to 35-V input bias, output stage reverse current protection, user programmable shutdown, ±1.0% initial tolerance bandgap reference, high bandwidth error amplifiers, thermally enhanced HTSSOP 20-pin PowerPAD package and QFN-32 pin, synchronization input, and support for pre-bias applications
The UCC2541 is a synchronous buck PWM controller designed for high current and low output voltage applications. It incorporates Texas Instruments' Predictive Gate Drive™ technology to virtually eliminate body diode conduction losses in synchronous rectifiers, ensuring higher efficiency.
Available in thermally enhanced HTSSOP-20 (PWP) or QFN-32 (RHB) packages, the device supports input bias voltages from 2.7 V to 35 V and operates with dual +3-A TrueDrive™ outputs. It includes features such as an on-board programmable oscillator, overcurrent protection, reverse current protection for the output stage, and user-programmable shutdown via the SS pin.
| Supply voltage range (Mode 1) | 8.5 V to 35 V |
|---|---|
| Operating junction temperature range | -40°C to 105°C |
| Output current (G1) | +/-3 A |
| Oscillator frequency range | 270 kHz to 330 kHz |
| Gain bandwidth (Voltage Error Amplifier) | 3 MHz to 4 MHz |
It incorporates Predictive Gate Drive™ technology that virtually eliminates body diode conduction losses in synchronous rectifiers.
The device is offered in thermally enhanced PowerPAD™ 20-pin HTSSOP (PWP) or 32-pin quad flatpack (RHB) packages.
The VREF Reference output voltage typically measures 3.30 V.