The HT7536-3 is a low dropout (LDO) linear regulator produced by Holtek. It is designed to provide a stable and regulated output voltage of 3.6V with a low dropout voltage, making it suitable for battery-powered applications and systems requiring a stable voltage source. The device offers features such as overcurrent protection and thermal shutdown to enhance reliability and prevent damage in fault conditions.

Applications

• Battery-powered devices: Such as portable electronics, where maintaining a stable voltage during battery discharge is crucial.
• Microcontroller power supplies: Providing a regulated voltage for microcontrollers and other digital logic circuits.
• Wireless communication devices: Ensuring stable power for RF transceivers and other sensitive components.
• Consumer electronics: Used in various consumer products requiring a stable 3.6V supply.
• Instrumentation: Providing a precise voltage reference in measurement and control systems.

Features

• Low Dropout Voltage: Ensures the regulator can maintain the output voltage even when the input voltage is close to the output voltage.
• Output Voltage: Fixed 3.6V output voltage.
• Overcurrent Protection: Protects the regulator and the load from excessive current draw.
• Thermal Shutdown: Shuts down the regulator when the junction temperature exceeds a safe limit, preventing thermal damage.
• Low Quiescent Current: Minimizes power consumption when the regulator is in standby mode, extending battery life.
• Stable with Ceramic Capacitors: Designed to be stable with low-ESR ceramic output capacitors.

Benefits

• Stable Power Supply: Provides a consistent and reliable 3.6V output, crucial for sensitive electronic circuits.
• Extended Battery Life: Low quiescent current contributes to longer battery life in portable applications.
• Protection Against Faults: Overcurrent and thermal shutdown features enhance system reliability and prevent damage.
• Simplified Design: Stable operation with ceramic capacitors reduces the need for external components and simplifies circuit design.
• Wide Application Range: Suitable for a variety of applications due to its stable output and protection features.

Additional Details

The HT7536-3 typically comes in a SOT-89 or SOT-23 package. It requires a minimum input voltage slightly above the output voltage to operate correctly. The maximum input voltage is typically around 12V. The regulator's output current capability depends on the package and operating conditions but is generally in the range of 100-300mA. Consult the datasheet for precise electrical characteristics, thermal considerations, and recommended application circuits.