Texas Instruments TPS54110EVM-044, Руководство пользователя, Страница: 9 / 28

Background
1-2
1.1 Background
The TPS54110 dc/dc converter is designed to provide up to 1.5-A output from
a 3-V to 6-V input voltage source. Rated input voltage and output current range
is given in Table 1−1. This evaluation module is designed to demonstrate the
small PCB areas that may be achieved when designing with the TPS54110
regulator, and does not reflect the high efficiencies that may be achieved when
designing with this part. The switching frequency is set at a nominal 700 kHz,
allowing the use of a relatively small footprint 1-
µ
H output inductor. The
high-side and low-side MOSFETs are incorporated inside the TPS54110
package allowing for compact designs with minimal external circuitry. The low
drain-to-source on resistance of the internal MOSFETs allows the TPS54110
to achieve high efficiencies and helps to keep the temperature low at high
output currents. The compensation components are provided external to the
IC, and allow for an adjustable output voltage and a customizable loop
response. The TPS54110 is a full-featured device including undervoltage
lockout, adjustable slow-start timing, adjustable switching frequency, enable,
and power good functions.
Table 1−1. Input Voltage and Output Current Summary
EVM
INPUT VOLTAGE
RANGE
OUTPUT CURRENT
RANGE
TPS54110EVM−044 3 V to 6 V 0 to 1.5 A