TPS65510

TPS65510 www.ti.com .......................................................................................................................................................................................... SLLS917 – SEPTEMBER 2008 LOW-POWER BATTERY BACKUP IC WITH INTEGRATED BOOST CONVERTER FEATURES 1 2 Power-Path Switch to Select Main Battery or Backup Battery for Real-Time Clock (RTC) Integrated Boost DC/DC Converter – Modulation Select by Control Pin (PWMON), Pulse Frequency Modulation (PFM) or Pulse Width Modulation (PWM) – Fixed Switching Frequency (PWM, 750 kHz) – Peak Current Mode Control (PWM) – Low Power Consumption (PFM) Four Integrated Low Dropout (LDO) Voltage Regulators for 1.2 V/1.8 V/3.3 V Two Integrated Indicators – CS: Monitors the Voltage Level of Main Battery (VBAT) and Output voltage level of Boost Converter (VO_BT) – XRESET: Monitors the Output voltage Level of 3.3V LDO (VOUT) 16-Pin QFN (3mm × 3mm) Package Operating Temperature –35°C to 85°C Protection – Overcurrent Protection (OCP) – Overvoltage Protection (OVP) – Thermal Shutdown (TSD) – Undervoltage Lockout (UVLO) APPLICATIONS Digital Still Cameras Portable Systems With Backup Battery DESCRIPTION The TPS65510 offers a suitable solution for power switch to select the main battery or the backup battery. This device automatically selects the power path. It depends on the voltage level of the VO_BT pin. When the main battery is removed, the power path of the VOUT pin is automatically c...