GND

GND

FEEDBACK

/ON/OFF

OUTPUT

GND

GND

Connect FEEDBACK

between two output

resistors on adjustable

version.

TL2575, TL2575HV

SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014

www.ti.com

11 Power Supply Recommendations

This device operates with a power supply range of 4.75 V to 40 V (60 V for the TL2575-HV). A 100-µF

decoupling capacitor is recommended on the input to filter noise.

12 Layout

12.1 Layout Guidelines

With any switching regulator, circuit layout plays an important role in circuit performance. Wiring and parasitic

inductances, as well as stray capacitances, are subjected to rapidly switching currents, which can result in

unwanted voltage transients. To minimize inductance and ground loops, the length of the leads indicated by

heavy lines should be minimized. Optimal results can be achieved by single-point grounding (see Figure 11) or

by ground-plane construction. For the same reasons, the two programming resistors used in the adjustable

version should be located as close as possible to the regulator to keep the sensitive feedback wiring short.

12.2 Layout Example

Figure 20. Layout Diagram (KV Package)

20

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