TC1303A/TC1303B/ TC1303C/TC1304
500 mA Synchronous Buck
Regulator, + 300 mA LDO with Power-Good Output
Features
• Dual-Output
Regulator (500 mA Buck
Regulator and 300 mA Low-Dropout
Regulator) • Power-Good Output with 300 ms Delay • Total Device Quiescent Current = 65 µA, Typ.
• Independent Shutdown for Buck and LDO Outputs (TC1303) • 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...