器件名称: TC1313-CR0EUNTR
功能描述: 500 mA Synchronous Buck Regulator, + 300 mA LDO
文件大小: 542.3KB 共28页
简 介: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 A (Typ.) 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 Typ. @ 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 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 lowdropout 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 the load on the buck output is reduced to light ……
