General Description

The G2206 provide a complete power supply solution for digital cameras. They improve performance, component count, and size compared to other multi-channel controllers in 1-cell Li-Ion. On-chip MOSFETs provide up to 92~95 efficiency for critical power supplies. All channels DC/DC operate at one fixed frequency of 1.5MHz/750KHz to optimize size, cost, and efficiency. All Synchronous converters operate at pulse skipping mode at light load. They also feature True-Shutdown as well as internal compensation to minimize external component count.

The G2206 also provide Li-ion linear charger with dynamic power path control. G2206 has USB power source detection and JEITA compliant. G2206 also has auto NTC-R 100kΩ/10kΩ detection circuit.

Features

■ 2.5V ~ 5.5V Input Voltage Operation.

■ 95 Efficient DC/DC Converter

■ Built-in 1-ch synchronous boost converter, 1-ch auto buck-boost converter, 3-ch synchronous buck converter, 1-ch WLED driver, 2-ch LDOs for CMOS image sensor, and 1-ch low quiescent current LDO for RTC.

■ 31-steps brightness control by I2C for WLED Driver

■ Low Power consumption (Sleep Mode ) < 10µA.

■ Built-In Selectable Power ON/OFF Sequence for 4 Channels Synchronous Rectified Converter.

■ Built-In Short Circuit Protection (SCP), Under Voltage Protection (UVP), and cycle-by cycle current limit for DC/DC Converters.

■ Integrated Li-ion linear charger with dynamic power path function.

■ Charge voltage and current control with JEITA compliant.

■ USB charger with Auto Power Source Detection which is compliant to USB Battery Charging Revision 1.2.

■ Built-In Thermal Shutdown Function.

■ Built-In Battery OVP Function.

■ TQFN40 Package (5mmx5mm).

Applications

DSC and DV Power Supply