1 Features
1• 2.9-V to 18-V Input voltage range
• 3-A, 40-V Internal switch
• High-efficiency power conversion: Up to 93%
• Frequency set by external resistor: 200 kHz to 2.2
MHz
• Synchronous external switching frequency
• User-defined soft start into full load
• Skip-switching cycle for output regulation at light
load
• 14-Pin HTSSOP package with PowerPad™
• Create a custom design using the TPS61175 with
the WEBENCH Power Designer

2 Applications
• 5-V to 12-V, 24-V Power conversion
• Supports SEPIC and flyback topologies
• ADSL modems
• TV tuners

3 Description
The TPS61175 device is a monolithic switching
regulator with integrated 3-A, 40-V power switch. The
device can be configured in several standard
switching-regulator topologies, including boost,
SEPIC, and flyback. The device has a wide input
voltage range to support application with input voltage
from multicell batteries or regulated 5-V, 12-V power
rails.
The TPS61175 regulates the output voltage with
current mode pulse width modulation (PWM) control.
The switching frequency of PWM is set by either an
external resistor or an external clock signal. The user
can program the switching frequency from 200 kHz to
2.2 MHz.
The device features a programmable soft-start
function to limit inrush current during start-up, and
has other built-in protection features, such as pulseby-
pulse overcurrent limit and thermal shutdown. The
TPS61175 is available in 14-pin HTSSOP package
with PowerPad.