TPS65530A Fully Integrated 8-Channel DC/DC Converter for Digital Still Cameras |

TPS65530A (ACTIVE) Fully Integrated 8-Channel DC/DC Converter for Digital Still Cameras



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.


  • 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 (CH1–4: 1.5 MHz, CH5–8: 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
    • Digital Still Cameras (DSCs)
    • Portable Electronics Equipment

PowerPAD is a trademark of Texas Instruments.


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Part number Order Regulated outputs (#) Processor supplier Processor name Vin (Min) (V) Vin (Max) (V) Step-up DC/DC controller Step-down DC/DC controller LDO Step-up DC/DC converter Step-down DC/DC converter Iout (Max) (A) Iq (Typ) (mA) Features Shutdown current (Typ) (uA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS65530A Order now 9     LBC7     LBC7     1.5     5.5     0     1     1     0     7     0.6     0.001     Power Sequencing     1     Catalog     -25 to 85     VQFN | 48     48VQFN: 36 mm2: 6 x 6 (VQFN | 48)