● 8-Channel DC/DC Converter and
●Low Dropout (LDO)
● Integrated Power MOSFET Switch Except CH8
● Boost (CH5/7)
● Buck (CH1/3)
● Buck-Boost (CH2/4)
● Invert (CH6)
● Low-Power Suspend Mode (Sleep Mode)
● Power ON/OFF Sequence (CH1/2/3 and CH5/6)
● LED-Back Light Brightness Control (CH7)
● Fixed Switching Frequency (CH14: 1.5 MHz, CH58: 750 kHz)
● Fixed Max Duty Cycle Internally
● Soft Start
● Undervoltage Lockout (UVLO)
● Protection
● Thermal Shutdown (TSD)
● Overvoltage Protection (OVP)
● Overcurrent Protection (OCP) Except CH8
● Supply Voltage Range: 1.5 V to 5.5 V
● Operating Temperature Range: 25°C to 85°C
● 6 × 6 mm, 0.4-mm Pitch, 48-Pin QFN Package
● APPLICATIONS
● Digital Still Cameras (DSCs)
● Portable Electronics Equipment
●PowerPAD is a trademark of Texas Instruments.
●## DESCRIPTION/ORDERING INFORMATION
●The TPS65530A is a fully integrated 8-channel switching dc/dc converter, and seven channels have integrated power FET.
●CH2/4 are configured for H bridge for buck-boost topology and single inductor supports. These channels achieve higher efficiency in spite of input/output voltage conditions.
●CH7 has a brightness control and drives white LED by constant current. Also, CH7 supports overvoltage protection (OVP) for open load.
●CH1/2/3 have a power ON/OFF sequence suitable for a digital still camera (DSC) system. CH5/6 have a power ON/OFF sequence, depending on the CCD. Power ON/OFF for CCD block (CH5/6) is selectable by the input voltage level at the SEQ56 pin. CH4 and CH7 have individual ON/OFF sequences.
●The TPS65530A high switching frequency is achieved by an integrated power MOSFET switch. It reduces external parts dynamically. Shutdown current consumption is less than 1 µA as a typical value.
