مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) رگولاتور ولتاژ خطی و کم‌افت (ال دی او)

Product Attributes

Introduction

Ultra Low Dropout - 0.23V(typical) at 3A Output Current. Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable. 0.8V Reference Voltage. High Output Accuracy - ±1.5% over Line, Load, and Temperature Range. Fast Transient Response. Adjustable Output Voltage. Power-On-Reset Monitoring on Both VCNTL and VIN Pins. Internal Soft-Start. Current-Limit and Short Current-Limit Protections. Thermal Shutdown with Hysteresis. Open-Drain VOUT Voltage Indicator (POK). Low Shutdown Quiescent Current. Shutdown/Enable Control Function. Simple SOP-8P and TDFN3x3-10 Packages with Exposed Pad. Lead Free and Green Devices Available (RoHS Compliant). The APL5934 is a 3A ultra low dropout linear regulator. The IC needs two supply voltages, one is a control voltage (VCNTL) for the control circuitry, the other is a main supply voltage (VIN) for power conversion, to reduce power dissipation and provide extremely low dropout voltage. The APL5934/B integrates many functions. A Power-OnReset (POR) circuit monitors both supply voltages on VCNTL and VIN pins to prevent erroneous operations. The functions of thermal shutdown and current-limit protect the device against thermal and current over-loads. A POK indicates the output voltage status with a delay time set internally. It can control other converter for power sequence. The APL5934/B can be enabled by other power systems. Pulling and holding the EN/ENB voltage below 0.4V shut/enable off the output. The APL5934 is available in a SOP-8P package which features small size as SOP-8 and an Exposed Pad to reduce the junction-to-case resistance to extend power range of applications.

Features

• Ultra Low Dropout - 0.23V(typical) at 3A Output Current
• Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable
• 0.8V Reference Voltage
• High Output Accuracy - ±1.5% over Line, Load, and Temperature Range
• Fast Transient Response
• Adjustable Output Voltage
• Power-On-Reset Monitoring on Both VCNTL and VIN Pins
• Internal Soft-Start
• Current-Limit and Short Current-Limit Protections
• Thermal Shutdown with Hysteresis
• Open-Drain VOUT Voltage Indicator (POK)
• Low Shutdown Quiescent Current
• Shutdown/Enable Control Function
• Simple SOP-8P and TDFN3x3-10 Packages with Exposed Pad
• Lead Free and Green Devices Available (RoHS Compliant)

Applications

• Front Side Bus VTT (1.2V/3A)
• Note Book PC Applications
• Motherboard Applications