G2105 Global Mixed-mode Technology 7-Channel DC-DC Converter for DSC Features General Description 95% Efficient DC/DC Converter. Highly Integrated 7-CH DC/DC with integrated Power MOSFETs. CH1, CH2, CH6 and CH7 Boost-type Synchronous Rectified Current-Mode PWM Converters with true-shutdown function. CH2 Buck(G2105B) or Boost(G2105A) for all Battery Application. 6 Channel Built-in Synchronous Rectified Current-Mode PWM Converters, 1 Channel Built-in Non-Synchronous Rectified Current-Mode PWM Converters. Low Power Consumption (Sleep Mode) <10µA. Built-In Short-circuit Protection (SCP) and Over Current Protection (OCP) for MOSFETs. Built-In Under Voltage Lock Out (UVLO) and Over Load Protection (OLP). Built-In Soft-Start Function. Selectable CH7 Boost Type with Open LED Protection or Current Regulation Type LED Driver. Built-In Power ON/OFF Sequence Control. Fixed 2MHz(CH1~CH4) / 1MHz(CH5~CH7) Operating Frequency. All Channel with internal compensation All Power Switches integrated Built-in RTC LDO. Build-in thermal shutdown (TSD, 150°C ). The G2105 provide a complete power supply solution for digital cameras. They improve performance, component count, and size compared to other multi-channel controllers in 2-cell AA(G2105A), 1-cell Li-Ion(G2105B), and multi-battery designs. On-chip MOSFETs provide up to 92~95% efficiency for critical power supplies. All channels DC/DC operate at Fixed 2MHz(CH1~CH4)/ 1MHz(CH5~CH7) Operating Frequency to optimize size, cost, and efficiency. The G2105 is available in 32-pin TQFN (4X4) package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G2105AK11U 2105A -20°C to +85°C TQFN4X4-32 G2105BK11U 2105B -20°C to +85°C TQFN4X4-32 Note: K1: TQFN4X4-32 1: Bonding Code U: Tape & Reel Applications DSC Power Supply PVCC1 LX1 26 G2105 25 CTL1 LX3 28 27 FB7 VOUT7 PVCC3 29 30 LX7 32 31 LX1 CTL1 PVCC1 25 26 27 PVCC3 LX3 28 29 VOUT7 FB7 30 32 31 LX7 Pin Configuration CH1 Synchronous Rectified Current Mode Step-Up CTL7 1 24 FB1 CTL7 1 24 FB1 CTL5 2 23 FB3 CTL5 2 23 FB3 22 V08 22 V08 21 VCC 21 MODE FB5 3 PVCC5 4 Thermal Pad FB5 3 PVCC5 4 Thermal Pad 15 16 LX2 13 14 LX4 CTL234 PVCC2 12 LX6 LX6 G2105A TQFN4X4-32 PVCC4 RTCLDO_O 11 17 FB4 8 9 CTL6 10 VOUT2 VOUT6 17 16 8 PVCC2 RTCLDO_P CTL6 15 18 14 FB6 7 LX2 POK CTL234 FB6 18 13 FB2 7 12 BAT 19 LX4 20 6 PVCC4 5 VOUT5 11 LX5 FB2 FB4 BAT 19 9 20 6 10 5 VOUT6 LX5 VOUT5 G2105B TQFN4X4-32 CH2 Synchronous Rectified Current Mode Step-Up(G2105A)/ Step-Down(G2105B) CH3 Synchronous Rectified Current Mode Step-Down CH4 Synchronous Rectified Current Mode Step-Down CH5 (CCD INV) Current Mode Inverting CH6 (CCD BST) Synchronous Rectified Current Mode Step-Up CH7 (LED Driver) Synchronous Rectified Current Mode Step-Up or Current Regulator Type LED Driver 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 Jan 17, 2013 1