| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 500 kHz |
| Number of Pins | 16 Pin |
| Case/Package | TSSOP |
| Number of Outputs | 1 Output |
| Output Voltage | 1.23 V (min) |
| Output Current | 500 mA |
| Quiescent Current | 1.00 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1.00 MHz |
| Topology | Buck |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Rail |
The LM25574MT is a SIMPLE SWITCHER® easy-to-use Buck Regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 to 42V, the LM25574 delivers 0.5A of continuous output current with an integrated 750mR N-channel MOSFET. The regulator utilizes an emulated current mode architecture which provides inherent line regulation, tight load transient response and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 1MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC"s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25574 guarantees robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down and remote shut-down.
● Master or slave frequency synchronization
● Adjustable soft-start
● Emulated current mode control architecture
● Wide bandwidth error amplifier
● Built-in protection
● Integrated 42V, 750mR N-channel MOSFET
● 1.5% Feedback reference accuracy
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