EL7536IY-T7

Overview

The EL7536IY-T7 is a monolithic synchronous step-down switching regulator manufactured by Renesas Electronics (formerly Intersil). It integrates high-side and low-side N-channel power FETs to deliver a continuous output current of 1 A. The device operates from an input voltage range of 2.5 V to 5.5 V, making it suitable for 3.3 V and 5 V systems or lithium-ion battery applications. It features a fixed switching frequency of 1.75 MHz and provides an adjustable output voltage between 800 mV and VIN. The component is housed in a 10-lead MSOP package and is rated for operation over an extended temperature range of -40°C to +85°C.

Feature Summary

• Integrates synchronous N-channel power FETs for high efficiency
• Fixed 1.75 MHz switching frequency enables compact external component sizing
• Includes internal compensation and 100 ms power-on reset
• Features thermal shutdown protection and low standby current

Applications

• Portable electronics powered by single-cell lithium batteries
• Point-of-load regulation for digital signal processors
• General-purpose 3.3 V and 5 V DC-DC conversion
• Battery-powered consumer devices requiring small form factors

Procurement Notes

Verify the manufacturer status carefully as the EL7536 series has been discontinued by Renesas. Sourcing may require checking authorized distributors for remaining stock or evaluating alternative components. Confirm RoHS compliance and humidity sensitivity levels prior to procurement. Ensure the specific tape-and-reel quantity matches production requirements. Validate that the lead-free marking aligns with assembly specifications.

Selection Notes

Select this component when a compact solution is required for low-power applications needing up to 1 A output. The 1.75 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency regulators. Consider the MSOP-10 package constraints for PCB layout. Verify that the input voltage range covers the minimum battery discharge voltage. Evaluate thermal performance under maximum load conditions within the specified operating temperature range.

Part Context

The EL7536 belongs to the EL7536 family of monolithic step-down regulators produced by Intersil, now part of Renesas Electronics. This series is designed for space-constrained portable applications. The IYZ suffix indicates the MSOP-10 package variant. The T7 suffix denotes the reel packaging format. The family shares core architecture including integrated synchronous rectification and fixed-frequency PWM control.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinuation status, direct pin-to-pin replacements should be verified against updated Renesas portfolios or third-party equivalents with matching electrical characteristics and package dimensions.