ZHCS026C December 2010 – February 2016 TPS57060-Q1
PRODUCTION DATA.
The TPS57060-Q1 device uses an adjustable fixed frequency, peak current mode control. The output voltage is scaled downed to the internal voltage reference level using the external voltage divider resistors on the VSENSE pin and this voltage is compared to an internal voltage reference by an error amplifier which drives the COMP pin. An internal oscillator initiates the turn on of the high-side power switch. The error amplifier output is compared to the high-side power-switch current. When the power switch current reaches the level set by the COMP voltage, the power switch is turned off. The COMP pin voltage will increase and decrease as the output current increases and decreases. The device implements a current limit by clamping the COMP pin voltage to a maximum level. The Eco-Mode™ is implemented with a minimum clamp on the COMP pin.