HT7718S - Holtek Semiconductor

HT7718S 100mA PFM Synchronous Step-up DC/DC Converter

The HT77xxS devices are a high efficiency PFM synchronous step-up DC-DC converter series which are designed to operate with both wire wound chip power inductors and also with multi-layered chip power inductors. The device series have the advantages of extremely low start-up voltage as well as high output voltage accuracy. Being manufactured using CMOS t.

Features

• Low start-up voltage: 0.7V (Typ.)
• High efficiency: 1.8V ≤ VOUT ≤ 2.2V upper 80%, 2.7V ≤ VOUT ≤ 5.0V upper 85% (Typ.)
• High output voltage accuracy: ±2.5%
• Output voltage: 1.8V, 2.2V, 2.7V, 3.0V, 3.3V, 3.7V, 5.0V
• Output current up to 100mA
• Ultra low supply current IDD: 4μA (Typ.)
• Low ripple and low noise
• Low shutdown current: 0.1μA (Typ.)
• TO92, SOT89, SOT23 and SOT23-5 package Applications
• Palmtops/PDAs
• Portable communicators/Smartphones
• Cameras/Camcorders
• Battery-powered equipment General Description The HT77xxS devices are a high efficiency PFM synchronou.