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LM2717

ACTIVE

Dual step-down DC/DC converter

Product details

Vin (min) (V) 4 Vin (max) (V) 20 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 2.2 Iq (typ) (mA) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Over Current Protection Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 2 Control mode Constant on-time (COT) Duty cycle (max) (%) 89 Type Converter
Vin (min) (V) 4 Vin (max) (V) 20 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 2.2 Iq (typ) (mA) 6 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 300 Features Over Current Protection Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 2 Control mode Constant on-time (COT) Duty cycle (max) (%) 89 Type Converter
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • 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.

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* Data sheet LM2717 Dual Step-Down DC/DC Converter datasheet (Rev. D) 28 Mar 2013
User guide LM2717 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 20 Dec 2021
User guide LM2717-ADJ Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 20 Dec 2021
Application note Implementing Single-Chip FPGA Power Solutions 21 Mar 2007

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TSSOP (PW) 24 View options

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