TPS65530A
www.ti.com. SLVS835C – APRIL 2008 – REVISED APRIL 2009 FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS
FEATURES APPLICATIONS 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 1 2 Digital Still Cameras (DSCs)
Portable Electronics Equipment 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 …
