G2241B

Global Mixed-mode Technology G2241B 4+6 Channels PMU and Dual-input, Switch mode Li-ion Battery Charger 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). „ 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. Applications „ Tablet PC Ordering Info...