TPS5120-Q1

illustrate

The TPS5120 type is a dual, high efficiency synchronous buck controller running the output phase of 180, thereby reducing input current ripple and thus the cost of input capacitors. The PWM/skip pin allows the business mode to switch from PWM mode to skip mode under light load conditions. Skip mode can be shortened to low-side MOSFETs with lower operating frequencies and pulse widths, improving efficiency at light loads. These two modes, along with synchronous rectified drivers, dead time, and very low quiescent current, allow power to protect and extend battery life that is extended under all load conditions. The driver chip on the high-side and low-side MOSFET drivers of 1.5 (typical) designs are cheaper N-channel MOSFETs.

characteristic

• Qualified automotive applications
• Independent dual outputs operate 180° out of phase
• Wide input voltage range: 4.5 - V - 28 - V
• The output voltage can be adjusted down to 0.9 V
• Pin selectable PWM/skip down, light load high efficiency model
• Synchronous buck operation allows up to 95% efficiency
• Separate backup control and overcurrent protection for each channel
• Programmable short-circuit protection
• Low supply (1 mA) and shutdown (1 NA) current
• Power good output
• High speed error amplifier
• Sequencing is easy by selecting a soft-start capacitor value.
• 5-V linear regulated power supply internal circuit circuitry
• 30-pin TSSOP package
• The gate leakage current test passing level is 50 volts