TPS65530A
www.ti.com......................................................................................................
TPS65530A
www.ti.com............................................................................................................................................................ SLVS835C – APRIL 2008 – REVISED APRIL 2009
FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS
FEATURES
1
2 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 Under
voltage Lockout (UVLO) Protection
– Thermal Shutdown (TSD) – Over
voltage 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
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 over
voltage protection (OVP) for open l...