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 mA as a typical value.
8-Channel DC/DC Converter and Low Dropout (LDO)
Integrated Power MOSFET Switch Except CH8
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 (CH1–4: 1.5 MHz, CH5–8: 750 kHz)
Fixed Max DutyCycle Internally
Undervoltage Lockout (UVLO)
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
Digital Still Cameras (DSCs)
Portable Electronics Equipment
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Max Processing Temp
Maximum Input Voltage
Number of Outputs
-25 to 85 °C
6 x 6 x 0.9 mm
Non-Inverting|Inverting|Step Up|Step Down
Minimum Input Voltage
Operating Supply Voltage
1.5 to 5.5 V
0.9 to 2.5|2.5 to 3.6|2.2 to 3.6|1.5 to 18|-10 to -5|3 to 20|3.3 to 5.5 V