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Electrical Performance Specifications

2 Electrical Performance Specifications

Table 1. TPS51727EVM Electrical Performance Specifications

Parameter Test Conditions Min Typ Max Units

Input Characteristics

Voltage range VIN 8 12 14 V

Maximum input current VIN = 8 V, Io = 40 A 8.5 A

No load input current Vin = 14 V, Io = 0 A 20 mA

Output Characteristics

Output voltage VOUT 1.5 V or 0.875–1.250 V 1.25 V

Line regulation 0.1%

Output voltage regulation

Load regulation (Load line Rout = –1.8 mΩ) –3.0%

+6.7%

Output voltage ripple Vin = 12 V, Io = 20 A 30 mVpp

Output load current 0 40 A

Output over current 50 A

System Characteristics

Switching frequency Selectable 200 300 500 kHz

Peak efficiency Vin = 12 V, 1.25 V/15 A 91.66%

Full load efficiency Vin = 12 V, 1.25 V/40 A 88.79%

Operating temperature 25 °C

SLUU379–November 2009 Using the TPS51727EVM, a Dual-Phase, Eco-mode™ Step-Down Power

Management IC for 40-A+ Application

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