Datasheet

Electrical Performance Specifications

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3 Electrical Performance Specifications

Table 1. TPS51220A EVM-476 Electrical Performance Specifications

PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

Input Characteristics

Voltage range 8 12 20 V

Maximum input current 12 V

, both outputs at 8 A. 5.8 A

Output Characteristics

Output voltage, VOUT 1 5 V

Output load current, IOUT1 0 8 A

Line regulation: input voltage = 8 V to 20 V ±0.5 %

Output voltage regulation

Load regulation: output current = 0 A to 8 A ±1 %

Output voltage ripple At IOUT1 = 8 A 50 mVpp

Output over current 12 A

Switching frequency 330 kHz

Peak efficiency 97.8 %

Full load efficiency 96.9 %

Output voltage, VOUT 2 3.3 V

Output load current, IOUT2 0 8 A

Line Regulation: Input voltage = 8V to 20V ±0.5 %

Output voltage regulation

Load Regulation: Output current = 0A to 8A ±1 %

Output voltage ripple At IOUT = 8 A 50 mVpp

Output over current 12 A

Switching frequency 330 kHz

Peak efficiency 96 %

Full load efficiency 95 %

High Performance Dual Output Synchronous Buck EVM SLUU381A–September 2009–Revised May 2011

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