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L4973 Datasheet PDF

Part Series:L4973 Series
Category:DC-DC Converters
Description:Conv DC-DC 8V to 55V Step Down Single-Out 5.1V to 50V 3.5A 20Pin SO Tube
Document:L4973V5.1 Datasheet PDF (29 Pages)

L4973 DC-DC Converters Datasheet PDF

#1
L4973V5.1
4.7
ST Microelectronics
#2
L4973D5.1
4.9
ST Microelectronics
#3
L4973D3.3
4.7
ST Microelectronics

L4973 Datasheet PDF DC-DC Converters

28 Pages
ST Microelectronics
Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 18Pin PDIP Tube
28 Pages
ST Microelectronics
Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20Pin SO T/R
28 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
28 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
16 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
16 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
16 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
16 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR
16 Pages
ST Microelectronics
3.5A STEP DOWN SWITCHING REGULATOR

L4973D5.1 - ST Microelectronics Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
20 Pin
Operating Voltage
8V ~ 55V
Case/Package
SOIC-20
Number of Outputs
1 Output
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L4973D5.1 - ST Microelectronics Function Overview

The L4973D5.1 is a step-down monolithic power Switching Regulator delivering 3.5A at fixed voltage of 3.3 or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15R) to obtain very high efficiency and very fast switching times. Switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltages regulated from 3.3 to 40V cover the majority of the today applications. Features of this new generation of DC-to-DC converter includes pulse by pulse current limit, hiccup mode for output short-circuit protection, voltage feed-forward regulation, soft-start, input/output synchronization, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
Inhibit for zero current consumption (100mA at VCC=24V)
Input/output synchronization function
Protection against feedback disconnection
Output overvoltage protection
Internal current limiting (pulse by pulse and HICCUP mode)
Zero load current operation (minimum 1mA)
Precise 5.1V (1.5%) reference voltage externally available
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