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Document overview
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Technical content
Features
1.5V ~ 5.5V Input Voltage Operation. 95% Efficient DC/DC Converter Highly Integrated 7-CH DC/DC with integrated Power MOSFETs Main Channel Selectable Buck or Boost for 2*AA or Li-Ion Application Built-in 6 Channel Synchronous Rectified Current-Mode PWM/PSM Converter, 1 Channel Non-Synchronous Rectified Current-Mode PWM Converter. Boost Type with LED open protection LED Driver 32-steps brightness control by I 2C for LED Driver Built-in HV LDO and RTC LDO Built-in 4 LDO regulators Low Power Consumption ( Sleep Mode ) < 10µA. Built-In Selectable Power ON/OFF Sequence for 4 Channel Synchronous Rectified Converter. Built-In Power ON/OFF Sequence by I2C for CCD+,CCD- power, and HVLDO. Built-In Short Circuit Protection (SCP) & Under Voltage Protection (UVP) Cycle-by-Cycle current limit for DC/DC Converter Built-In Thermal Shutdown Function. Built-In Battery OVP Function. Built-In Soft-Start Function. Built-In True Shutdown in Boost Converter. Fixed 1.5MHz/750KHz Operating Frequency. TQFN40 Package (5mmx5mm).
Applications
The G2205 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, 1-cell Li-Ion, and multi-battery designs. 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..
Ordering Information
NUMBER MARKING TEMP. RANGE PACKAGE (Green) G2205RG1U 2205 -35 °C~+85°C TQFN5X5-40 Note: RG:TQFN5x5-40 1: Bonding code U: Tape & Reel Pin Configuration VIN12 VOUT10 VIN9/10 VOUT9 VOUT12 LXM PVM FBM PVM U/D LXINV BATT LXZ ISET VOLED LXBST PVBST VIN8 VOUT8 VIN11 VOUT11 PVZ SDA SCL LXSU PVSU SUOUT ONSU VBG RESET_OUT DET_IN VSU SEQ_1 SEQ_2 VOINV G2205 TQFN5X5-40 Thermal Pad
31 LXSD
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. FBZ G2205 SU Synchronous Rectified Current Mode Step-Up MAIN Current Mode Selectable Step-Up/Step-Down SD Synchronous Rectified Current Mode Step-Down DDRZ Synchronous Rectified Current Mode Step-Down CCD INV Current Mode Inverting CCD BST Synchronous Rectified Current Mode Step-Up LED Driver Synchronous Rectified Current Mode Step-Up HV LDO/RTC LDO 4 x LVLDO RTCOUT VIN12 VOUT10 VIN9/10 VOUT9 VOUT12 LXM PVM FBM PVM U/D LXINV BATT LXZ ISET VOLED LXBST PVBST VIN8 VOUT8 VIN11 VOUT11 PVZ SDA SCL LXSU PVSU SUOUT ONSU VBG RESET_OUT DET_IN VSU SEQ_1 SEQ_2 VOINV G2205 TQFN5X5-40 Thermal Pad Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. FBZ G2205 SU Synchronous Rectified Current Mode Step-Up MAIN Current Mode Selectable Step-Up/Step-Down SD Synchronous Rectified Current Mode Step-Down DDRZ Synchronous Rectified Current Mode Step-Down CCD INV Current Mode Inverting CCD BST Synchronous Rectified Current Mode Step-Up LED Driver Synchronous Rectified Current Mode Step-Up HV LDO/RTC LDO 4 x LVLDO RTCOUT