Power chip

TPS82130 TPS82130 3-A 17-V Buck Converter with Integrated Inductor

Vin=12V Vout=3.3V 5A 72dB@(120Hz)

LP2989 Micropower/Low Noise, 500 mA Ultra Low Dropout Regulator

Current Mode PWM Control

Output Type: Fixed Output Polarity: Positive Number of Output Channels: 1 Maximum Input Voltage: 30V Output Voltage: 4.4V Dropout Voltage: 25mV

Input voltage (nominal value) 12 Output voltage (VDC) 3.3 Minimum current (mA) 0 Maximum current (mA) 400 Full load efficiency (%) 84 Maximum capacitive load (uF) 2400

USB charge controller