L5970D013TR

Voltage Regulators - DC DC Switching Regulators Overview

The L5970D013TR is a monolithic step-down switching regulator from STMicroelectronics, delivering up to 1A output current. It supports adjustable output voltages ranging from 1.2V to 35V with an operating input voltage range of 4.4V to 36V. The device features an internally fixed switching frequency of 250kHz and utilizes an internal P-Channel D-MOS transistor. Key electrical parameters include a typical Rdson of 250mΩ, a 3.3V reference voltage with ±2% accuracy, and a maximum static current of 2.7mA. It operates within a junction temperature range of -40°C to +150°C and is housed in an 8-SOIC package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Incorporates an internal P-Channel D-MOS switching element to minimize external component requirements.
• Provides pulse-by-pulse current limiting with internal frequency modulation for short circuit protection.
• Supports low dropout operation at 100% duty cycle and zero load current operation.
• Includes thermal shutdown, feedback disconnection protection, and voltage feedforward capabilities.

Voltage Regulators - DC DC Switching Regulators Applications

• Computer-related applications utilizing 5V bus architectures
• High-intensity LED driver circuits
• General-purpose DC-to-DC conversion systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '013TR' confirms the reel packaging format distinct from tube variants like L5970D. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to assembly planning. Ensure the ordering quantity aligns with standard reel quantities if full reels are required rather than cut tape options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a buck topology is required for inputs between 4.4V and 36V. It is suitable for designs needing a fixed 250kHz frequency without external synchronization components. Consider the 8-SOIC package constraints and thermal performance for high ambient temperatures or continuous 1A loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L5970 series of power management ICs designed for efficient step-down regulation. It serves as a core PMIC solution for embedded systems requiring stable voltage conversion from common bus voltages. The series emphasizes compact design through integrated power switches and comprehensive protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.