The LV284 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4 V to 40 V, the device is designed for a wide range of applications from industrial to automotive. An ultra-low, 1-µA shutdown current prolongs battery life. Operating frequency is fixed at 0.7 MHz allowing the use of small external components while still being able to have low output ripple voltage. Soft-start and compensation circuits are implemented internally, and these allow the device to be used with minimum external components. The LV284 is optimized for up to 1-A load current. The device has a 0.765-V nominal feedback voltage. The device has built-in protection features such as pulse-by-pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LV284 is available in a low profile TSOT-6L package (2.9 mm × 1.6 mm × 0.85 mm).
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| 环境与封装 | |
|---|---|
| Operating temperature range (°C) | -40 to 125 |
| 其他 | |
| Control mode | current mode |
| Duty cycle (max) (%) | 96 |
| Features | Enable, Fixed soft start, Light-load efficiency, Overcurrent protection, Pre-bias startup, UVLO Fixed |
| Iout (max) (A) | 1 |
| Iq (typ) (A) | 0.00003 |
| Rating | Catalog |
| Topology | Buck |
| Vin (max) (V) | 40 |
| Vin (min) (V) | 4 |
| Vout (max) (V) | 30 |
| Vout (min) (V) | 0.8 |