LM2717
www.ti.com SNVS253D – MAY 2005 – REVISED MARCH 2013 LM2717 Dual Step-Down DC/DC Converter
Check for Samples: LM2717 FEATURES DESCRIPTION The LM2717 is composed of two PWM DC/DC buck
(step-down) converters. The first converter is used to
generate a fixed output voltage of 3.3V. The second
converter is used to generate an adjustable output
voltage. Both converters feature low RDSON (0.16Ω)
internal switches for maximum efficiency. Operating
frequency can be adjusted anywhere between
300kHz and 600kHz allowing the use of small
external components. External soft-start pins for each
enables the user to tailor the soft-start times to a
specific application. Each converter may also be shut
down independently with its own shutdown pin. The
LM2717 is available in a low profile 24-lead TSSOP
package ensuring a low profile overall solution. 1 2 Fixed 3.3V Output Buck Converter with a 2.2A,
0.16О©, Internal Switch
Adjustable Buck Converter with a 3.2A, 0.16О©,
Internal Switch
Operating Input Voltage Range of 4V to 20V
Input Undervoltage Protection
300kHz to 600kHz Pin Adjustable Operating
Frequency …
