| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 300 kHz |
| Number of Pins | 16 Pin |
| Case/Package | SO W |
| Number of Outputs | 1 Output |
| Output Voltage | 3.30 V (min) |
| Output Current | 2.00 A |
| voltage rating | 580 mV |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
The L4978D is a step-down monolithic power Switching Regulator delivering 2A at a voltage between 3.3 and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25R) to obtain very high efficiency and high switching speed. A switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltage regulated from 3.3 to 50V cover the majority of today"s applications. Features of this new generation of DC-to-DC converter include pulse-by-pulse current limit, hiccup mode for short-circuit protection, voltage feed-forward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
● Protection against feedback disconnection
● Inhibit for zero current consumption
● Zero load current operation
● Internal current limiting (pulse-by pulse and hiccup mode)
● Precise 3.3V (±1%) internal reference voltage
ST Microelectronics
13 Pages / 0.56 MByte
ST Microelectronics
Conv DC-DC 8V to 55V Step Down Single-Out 3.3V to 50V 2A 8Pin PDIP Tube
ST Microelectronics
L4978 Series 55V 220uA 300kHz Buck Through Hole Switching Regulator - SOIC-16
ST Microelectronics
Conv DC-DC 8V to 55V Step Down Single-Out 3.3V to 50V 2A 16Pin SO W T/R
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