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L4972A - 2A SWITCHING REGULATOR

General Description

The L4972A is a stepdown monolithic power switching regulator delivering 2A at a voltage variable from 5.1 to 40V.

Figure 2.

Figure 1.

Key Features

  • 2A OUTPUT.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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L4972A 2A SWITCHING REGULATOR 1 Features ■ 2A OUTPUT CURRENT ■ 5.1V TO 40V OUTPUT VOLTAGE RANGE ■ 0 TO 90% DUTY CYCLE RANGE ■ INTERNAL FEED-FORWARD LINE REG. ■ INTERNAL CURRENT LIMITING ■ PRECISE 5.1V ± 2% ON CHIP REFERENCE ■ RESET AND POWER FAIL FUNCTIONS ■ 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 200KHz ■ THERMAL SHUTDOWN ■ CONTINUOUS MODE OPERATION 2 Description The L4972A is a stepdown monolithic power switching regulator delivering 2A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device Figure 2. Block Diagram Figure 1. Packages PowerDIP20 (16+2+2) Table 1.