General Description

The G2241B provide a complete power supply solution. 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 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 G2241B also provide switched mode Li-ion charger with dynamic power path control. G2241B also has auto NTC-R 100kΩ/10kΩ detection circuit.

Features

● 2.5V ~ 5.5V Input Voltage Operation.

● 95 Efficient DC/DC Converter

● Built-in 4-ch synchronous buck converter, 5-ch LDOs, and 1-ch low quiescent current LDO for RTC.

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

● Built-In Power ON/OFF Sequence for PMU.

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

● Integrated switched mode Li-ion charger with dynamic power path function.

● Charge voltage and current control with JEITA compliant.

● Built-In Thermal Shutdown Function.

● Built-In Battery OVP Function.

● Boost Mode Operation for USB OTG.

● TQFN48 Package (6mmx6mm).

Applications

● Tablet PC