LM2717-ADJ_15 Datasheet, PDF (1/24 Pages) Texas Instruments – LM2717-ADJ Dual Step-Down DC/DC Converter

LM2717-ADJ
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SNVS407C – DECEMBER 2005 – REVISED MARCH 2013
LM2717-ADJ Dual Step-Down DC/DC Converter
Check for Samples: LM2717-ADJ
FEATURES
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•2 Adjustable Buck Converter with a 2.2A, 0.16Ω,
Internal Switch (Buck 1)
• Adjustable Buck Converter with a 3.2A, 0.16Ω,
Internal Switch (Buck 2)
• 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
APPLICATIONS
• TFT-LCD Displays
• Handheld Devices
• Portable Applications
• Laptop Computers
• Automotive Applications
DESCRIPTION
The LM2717-ADJ is composed of two PWM DC/DC
buck (step-down) converters. Both converters are
used to generate an adjustable output voltage as low
as 1.267V. Both also feature low R_DSON (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
converter 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-ADJ is available in a low
profile 24-lead TSSOP package ensuring a low profile
overall solution.
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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