The LV3842 is an easy to use synchronous step-down DC-DC converter capable of driving up to 600-mA load current. With a wide input range of 4 V to 36 V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source. The LV3842 employs 1.1-MHz switching frequency for small solution size. The LV3842 also has FPWM (forced PWM) version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are employed internally which allows the device to be used with minimum external components. The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LV3842 is available in SOT-23-6 package.
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View full reportTechnical parameters
| Environment and package | |
|---|---|
| Operating temperature range (°C) | -40 to 125 |
| Other | |
| Control mode | current mode |
| Duty cycle (max) (%) | 98 |
| Features | Enable, Fixed soft start, Forced PWM, Light-load efficiency, Overcurrent protection, Pre-bias startup, Synchronous rectification, Tracking, UVLO adjustable |
| Iout (max) (A) | 0.6 |
| Iq (typ) (A) | 0.00008 |
| Rating | Catalog |
| Topology | Buck |
| Vin (max) (V) | 36 |
| Vin (min) (V) | 4 |
| Vout (max) (V) | 34.2 |
| Vout (min) (V) | 1 |