Gehäuseinformationen
| Gehäuse | Pins TSSOP (PW) | 16 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 2.500 | LARGE T&R |
Merkmale von LM25574-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following
Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Integrated 42-V, 750-mΩ N-Channel MOSFET
- Ultra-Wide Input Voltage From 6 V to 42 V
- Adjustable Output Voltage as Low as 1.225 V
- 1.5% Feedback Reference Accuracy
- Operating Frequency Adjustable Between 50 kHz and 1 MHz With Single Resistor
- Master or Slave Frequency Synchronization
- Adjustable Soft-Start
- Emulated Current Mode Control Architecture
- Wide Bandwidth Error Amplifier
- Built-In Protection
- TSSOP-16 Package
- Create a Custom Design Using the LM25574-Q1 With the WEBENCH® Power Designer
Beschreibung von LM25574-Q1
The LM25574-Q1 is an 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 V to 42 V, the LM25574-Q1 delivers 0.5-A of continuous output current with an integrated 750-mΩ 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 50 kHz to 1-MHz 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-Q1 guarantees robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a TSSOP-16 package.