The TPIC74101-Q1 is a switch-mode regulator with integrated switches for voltage-mode
control. With the aid of external components (LC combination), the device regulates the output to 5
V ±2% for a wide input-voltage range.
The TPIC74101-Q1 offers a reset function to detect and indicate when the 5-V output rail
is outside of the specified tolerance. This reset delay is programmable using an external timing
capacitor on the RESET Pin. Additionally, an alarm (AOUT) feature is
activated when the input supply rail Vdriver is below a prescaled specified
value (set by the AIN pin).
The TPIC74101-Q1 has a frequency-modulation scheme to minimize EMI. The clock modulator
permits a modulation of the switching frequency to reduce interference energy in the frequency
band.
The 5Vg output is a switched 5-V regulated output with internal current limiting to
prevent RESET from being asserted when powering a capacitive load on the supply line. This function
is controlled by the 5Vg_ENABLE Pin. If there is a short to ground on this output (5Vg output), the
output self-protects by operating in a chopping mode. This does, however, increase the output
ripple voltage on VOUT during this fault condition.
The TPIC74101-Q1 is a switch-mode regulator with integrated switches for voltage-mode
control. With the aid of external components (LC combination), the device regulates the output to 5
V ±2% for a wide input-voltage range.
The TPIC74101-Q1 offers a reset function to detect and indicate when the 5-V output rail
is outside of the specified tolerance. This reset delay is programmable using an external timing
capacitor on the RESET Pin. Additionally, an alarm (AOUT) feature is
activated when the input supply rail Vdriver is below a prescaled specified
value (set by the AIN pin).
The TPIC74101-Q1 has a frequency-modulation scheme to minimize EMI. The clock modulator
permits a modulation of the switching frequency to reduce interference energy in the frequency
band.
The 5Vg output is a switched 5-V regulated output with internal current limiting to
prevent RESET from being asserted when powering a capacitive load on the supply line. This function
is controlled by the 5Vg_ENABLE Pin. If there is a short to ground on this output (5Vg output), the
output self-protects by operating in a chopping mode. This does, however, increase the output
ripple voltage on VOUT during this fault condition.