G2241B Global Mixed-mode Technology 4+6 Channels PMU and Dual-input, Switch mode Li-ion Battery Charger Features 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. 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 Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G2241BRP1U 2241B -35°C~+85°C TQFN6X6-48 Note: RP:TQFN6x6-48 1: Bonding code U: Tape & Reel /INT SCL SDA 38 37 40 39 PMID DCDET 41 VBUS PMID 42 PWREN_MAIN 44 43 PVCCSW PWREN_VDD 46 45 SLX PVCCSW 48 47 Pin Configuration SLX 1 36 DCIN VP 2 35 DCIN TS 3 34 SETL4 BAT 4 33 VBG BAT 5 32 SETL2 SYS 6 SYS 7 Thermal Pad 31 /CHGLED 30 LX3 22 23 24 LX2 DCDC2 21 VIN2 20 LX4 PWRGD 19 VIN4 LX1 17 25 18 12 SETD4 VIN1 LDO2 DCDC4 DCDC1 26 16 27 11 15 10 LDO4 LDO6 LDOIN34 LDOIN56 DCDC3 14 VIN3 28 13 29 9 LDO5 8 LDO3 LDOIN2 RTCOUT G2241B TQFN6X6-48 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.2 Oct 30, 2013 1