TC1313

www.DataSheet4U.com TC1313 500 mA Synchronous Buck Regulator, + 300 mA LDO Features Dual-Output Regulator (500 mA Buck Regulator and 300 mA Low-Dropout Regulator (LDO)) Total Device Quiescent Current = 57 µA (Typical) Independent Shutdown for Buck and LDO Outputs Both Outputs Internally Compensated Synchronous Buck Regulator: - Over 90% Typical Efficiency - 2.0 MHz Fixed-Frequency PWM (Heavy Load) - Low Output Noise - Automatic PWM-to-PFM mode transition - Adjustable (0.8V to 4.5V) and Standard Fixed-Output Voltages (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V) Low-Dropout Regulator: - Low-Dropout Voltage = 137 mV Typical @ 200 mA - Standard Fixed-Output Voltages (1.5V, 1.8V, 2.5V, 3.3V) Small 10-pin 3x3 DFN or MSOP Package Options Operating Junction Temperature Range: - -40°C to +125°C Undervoltage Lockout (UVLO) Output Short Circuit Protection Overtemperature Protection Description The TC1313 device combines a 500 mA synchronous buck regulator and 300 mA Low-Dropout Regulator (LDO) to provide a highly integrated solution for devices that require multiple supply voltages. The unique combination of an integrated buck switching regulator and low-dropout linear regulator provides the lowest system cost for dual-output voltage applications that require one lower processor core voltage and one higher bias voltage. The 500 mA synchronous buck regulator switches at a fixed frequency of 2.0 MHz when the load is heavy, providing a low-noise, small-size solution. When t...