Description

The SA57005DH is a low dropout regulator, part of the CapFREE family of regulators. It is designed to provide a stable output voltage without the need for external capacitors. With a low output noise voltage of 30 µVRMS and an ultra-low dropout voltage of 55 mV @ 50 mA output current, it is suitable for high-density layouts. The SA57005DH is packaged in the small footprint 5 leaded SOT23-5 (SO5) package, making it ideal for portable and cellular phone applications.

Specifications and features

• CapFREE: No output capacitor needed, stable for all capacitive loads, regardless of ESR
• Low 30 µVRMS noise without noise bypass capacitor
• Preset output voltages to 2.5 V, 2.8 V, 3.0 V, 3.3 V and 3.6 V; other voltages available upon request. 2% output voltage accuracy
• 150 mA maximum output current with current limitation
• Typical dropout voltage 55 mV @ 50 mA output current
• 85 µA typical ground current
• Thermal-overload and short-circuit protection
• PWROK pin: both power status and thermal warning indicator
• PWRON pin offers logic-controlled shutdown
• Maximum line regulation: 0.1%/V
• Maximum load regulation: 0.02%/mA

Application Scenarios

• Cordless and mobile phones
• Industrial and medical equipment
• Other battery-powered equipment