Datasheet

www.ti.com Configurations
6 Configurations
The user can configure this EVM per following configurations. Jumper J1 and J5 configurations should be
made prior to applying power to the EVM.
6.1 Mode Selection
The MODE can be set by J1.
6.1.1 Default Setting: HEF Mode, 4X S.S. Time
Table 2. MODE Selection
MODE RESISTANCES (kΩ) MODE
GND FCCM, 4X S.S. Time
24.3 HEF Mode, 4X S.S. Time
57.6 HEF Mode
105 DE Mode
174 DE Mode, 4X S.S. Time
Open FCCM
6.2 Enable Selection
The controller can be enabled and disabled by J4.
6.2.1 Default Setting: Short to Disable the Controller
6.3 Switching Frequency and OCP Selection
The switching frequency and OCP threshold can be set by J5.
6.3.1 Default Setting: 750 kHz, 6.5-A OCP
Table 3. Switching Frequency and OCP Selection
MODE RESISTANCES SWITCHING FREQUENCY OVERCURRENT THRESHOLD
GND 1.1 MHz 6.5 A
24.3 kΩ 750 kHz 4.5 A
57.6 kΩ 750 kHz 6.5 A
105 kΩ 2.0 MHz 4.5 A
174 kΩ 2.0 MHz 6.5 A
Open 1.1 MHz 4.5 A
7
SLUU671–December 2011 5-A Step-Down Regulator with Integrated Switcher
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