The SPX385N-1.2 is a low dropout (LDO) linear regulator from Sipex Corporation (now MaxLinear). It is designed to provide a stable and accurate 1.2V output voltage from a higher input voltage, even when the input voltage is very close to the output voltage. This LDO regulator is ideal for applications requiring low noise, high accuracy, and low power consumption.

Applications:

• Post Regulation for Switching Power Supplies
• Battery-Powered Systems
• Portable Devices
• Microprocessor Core Power
• Low-Voltage Logic Supplies

Features:

• Low Dropout Voltage: Operates with minimal input-output voltage difference
• High Output Accuracy: Provides a stable and precise 1.2V output
• Low Quiescent Current: Minimizes power consumption in standby mode
• Short-Circuit Protection: Protects the regulator and load from damage
• Thermal Overload Protection: Prevents overheating and ensures reliability
• Stable with Ceramic Capacitors: Allows for compact and cost-effective designs

Benefits:

• Improved Power Efficiency: Minimizes power loss due to low dropout voltage
• Extended Battery Life: Low quiescent current reduces battery drain in portable applications
• Enhanced System Reliability: Short-circuit and thermal overload protection prevent damage
• Simplified Design: Stable operation with ceramic capacitors simplifies layout and reduces component count
• Precise Voltage Regulation: Ensures stable operation of sensitive electronic components

Detailed Specs:

The SPX385N-1.2 features a 1.2V fixed output voltage. Key specifications include a low dropout voltage (typically a few hundred millivolts at rated current), a low quiescent current (typically in the microamp range), and short-circuit and thermal overload protection. The input voltage range is typically up to 5.5V. It is generally available in small surface-mount packages such as SOT-23 or similar. For exact values of input voltage range, dropout voltage at various output currents, quiescent current, output voltage accuracy, and thermal resistance, consult the official datasheet from MaxLinear. The datasheet will also specify the recommended output capacitor type and value for stable operation.