TS2515 Datasheet, PDF (3/7 Pages) Taiwan Semiconductor Company, Ltd – 3A / 380KHz PWM Buck Converter

Application Circuit
Typical Circuit
TS2515
3A / 380KHz PWM Buck Converter
L1 recommend value (V_IN=12V, I_OUT=3A )
V_OUT
1.8V
2.5V
3.3V
L1 Value 15uH
15uH
22uH
5V
22uH
Function Descriptions
PWM Control
The TS2515 consists of DC/DC converters that employ a pulse-width modulation (PWM) system. In converters of the
TS2515, the pulse width varies in a range from 0 to 100%, according to the load current. The ripple voltage produced
by the switching can easily be removed through a filter because the switching frequency remains constant. Therefore,
these converters provide a low-ripple power over broad ranges of input voltage and load current.
Setting the Output Voltage
Application circuit item shows the basic application circuit with TS2515 adjustable output version. The external resistor
sets the output voltage according to the following equation:
Table 1: Resistor select for output voltage setting
V_OUT
R2
R1
5V
5.6K
1.8K
3.3V
5.6K
3.3K
2.5V
1.25K
1.2K
1.8V
2.2K
4.7K
1.5V
1.1K
4.7K
3/7
Version: A09