Home Power management DC/DC switching regulators DC/DC converters

LM2717

ACTIVE

Dual step-down DC/DC converter

Product details

Rating Catalog Topology Buck Iout (max) (A) 2.2 Vin (max) (V) 20 Vin (min) (V) 4 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Over Current Protection Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.006 Duty cycle (max) (%) 89
Rating Catalog Topology Buck Iout (max) (A) 2.2 Vin (max) (V) 20 Vin (min) (V) 4 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Features Over Current Protection Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.006 Duty cycle (max) (%) 89
TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • Fixed 3.3V Output Buck Converter with a 2.2A, 0.16Ω, Internal Switch
  • Adjustable Buck Converter with a 3.2A, 0.16Ω, Internal Switch
  • Operating Input Voltage Range of 4V to 20V
  • Input Undervoltage Protection
  • 300kHz to 600kHz Pin Adjustable Operating Frequency
  • Over Temperature Protection
  • Small 24-Lead TSSOP Package

All trademarks are the property of their respective owners.

  • Fixed 3.3V Output Buck Converter with a 2.2A, 0.16Ω, Internal Switch
  • Adjustable Buck Converter with a 3.2A, 0.16Ω, Internal Switch
  • Operating Input Voltage Range of 4V to 20V
  • Input Undervoltage Protection
  • 300kHz to 600kHz Pin Adjustable Operating Frequency
  • Over Temperature Protection
  • Small 24-Lead TSSOP Package

All trademarks are the property of their respective owners.

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.

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.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
LM2717-ADJ ACTIVE Dual step-down DC/DC converter with adjustable output This product includes adjustable function support.

Technical documentation

No results found. Please clear your search and try again.
View all 4
Top documentation Type Title Format options Date
* Data sheet LM2717 Dual Step-Down DC/DC Converter datasheet (Rev. D) Mar 28, 2013
User guide LM2717-ADJ Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML Dec 20, 2021
User guide LM2717 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML Dec 20, 2021
Application note Implementing Single-Chip FPGA Power Solutions Mar 21, 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 24 Ultra Librarian

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos