產品應用：

LD7280 - VFM Step-Up DC/DC Converter

General Description

The LD7280 is a VFM step-up DC/DC converter with ultra low supply current. The CMOS design results in less power consumption and high capability for battery-powered instruments.

The LD7280 is a high efficiency step–up DC/DC converter and takes only three external components to achieve the low ripple.

As well, using chip enable function will make it possible to supply current on standby minimized.

Features

• Minimum external component counts
• Ultra low input current in switch off (TYP 5μA)
• ±2% High accuracy of output voltage
• Low ripple and low noise
• Low start-up voltage, 0.85V at no load.
• 80% efficiency with low cost inductor

Applications

• Power source for battery -powered equipment
• Power source for DSC, PDA, Camcorders, VCRs, Pagers, and Hand-held communication equipment

Typical Application