ST L4970A

降压降压15V50V10A

Overview

The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4970A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. 

✦10A OUTPUT CURRENT ✦5.1V TO 40V OUTPUT VOLTAGE RANGE ✦0 TO 90% DUTY CYCLE RANGE ✦INTERNAL FEED-FORWARD LINE REGULATION ✦INTERNAL CURRENT LIMITING ✦PRECISE 5.1V ± 2% ON CHIP REFERENCE ✦RESET AND POWER FAIL FUNCTIONS ✦SOFT START ✦INPUT/OUTPUT SYNC PIN ✦UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON ✦PWM LATCH FOR SINGLE PULSE PER PERIOD ✦VERY HIGH EFFICIENCY ✦SWITCHING FREQUENCY UP TO 500KHz ✦THERMAL SHUTDOWN ✦CONTINUOUS MODE OPERATION

Features

Tube Package
1 outputs
15 pins
Operating supply voltage of 50V

Through Hole Mounting Type

Applications

There are a lot of STMicroelectronics
L4970A Voltage Regulators applications.

• CNC system
• Servo drive system
• Digital display device
• Linear guide
• Ball screw pair
• Computer application technology
• Network technology
• Automation technology
• CMM
• Various precision measuring instruments