ISL80101IRAJZ-TK

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The ISL80101IRAJZ-TK is a single-output, positive adjustable linear regulator (LDO) manufactured by Renesas Electronics Corporation. It provides a maximum output current of 1A with an input voltage range of 2.2V to 6V and an adjustable output voltage range of 0.8V to 5V. The device features a typical dropout voltage of 90mV at 1A load and includes programmable current limiting up to 1.75A. Key electrical specifications include a static current of 5mA, power supply rejection ratio (PSRR) of 65dB at 120Hz, and output noise of 53μVrms (100Hz to 100kHz). It operates within a junction temperature range of -40°C to +125°C and is housed in a 10-DFN (3x3mm) surface-mount package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Features programmable high-precision current limiting to enhance system reliability
• Utilizes submicron BiCMOS process for low static current consumption and high efficiency
• Includes external soft-start capability via an onboard capacitor for controlled inrush current
• Provides enable functionality for low static current shutdown mode

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered systems requiring efficient linear regulation
• Sensor interfaces demanding low noise and fast transient response
• Portable electronic devices with strict size constraints

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'TK' against the manufacturer's official documentation to confirm tape-and-reel packaging details and any potential variations in marking or handling sensitivity. Ensure compatibility with standard ESD protection protocols during assembly. Cross-reference the exact part number with the latest Renesas datasheet revision history to confirm active status and compliance with current environmental standards such as RoHS.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a compact, high-efficiency LDO is required for applications needing precise current limiting and fast transient response. It is suitable for designs where input voltages vary between 2.2V and 6V and output currents reach up to 1A. Consider its small 10-DFN footprint for space-constrained PCB layouts. Evaluate the trade-off between its low quiescent current and the need for external components for soft-start and current limit programming.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The ISL80101 series belongs to Renesas' portfolio of high-performance linear regulators designed for portable and battery-operated electronics. These devices leverage advanced BiCMOS technology to achieve superior analog performance compared to traditional bipolar LDOs. The series emphasizes efficiency through reduced static current consumption, making it ideal for extending battery life in mobile and industrial applications while maintaining stable regulation under varying load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

ISL80101IRAJZ-T and ISL80101IRAJZ are listed as parameter-equivalent alternatives.