12 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision E (August 2024) to Revision F (January 2025)

Page

• Added missing denominator in Formula........................................................................................................... 39

• Updated Equation 22 .......................................................................................................................................40

Changes from Revision D (August 2023) to Revision E (August 2024)

Page

• Removed misleading sentence from MODE pin description: "If this function is not used, connect the pin to

VCC or GND.".....................................................................................................................................................3

• Adjusted max parameter value for HB1 to SW1 and HB2 to SW2 from 7.8V to 6.4V........................................6

• Changed reference to PGND and fixed lower limit for LO1, LO2, to PGND (DC) from -5V to -0.3V ................ 6

• Added HOx to SWx parameter........................................................................................................................... 6

• Fixed title of Figure 6-20...................................................................................................................................13

• Updated description for the enter condition of Buck-Boost mode (Buck and Boost mode entry was

swapped).......................................................................................................................................................... 20

• Use upper case D for duty cycle ..................................................................................................................... 24

• Updated calculation of CSA/CSB filter to use minimum ontime....................................................................... 27

• Aligned R_CFG setting 3 with value in Recommended Operating Conditions.................................................31

• Fixed link to Quickstart Calculator.................................................................................................................... 38

Changes from Revision C (May 2023) to Revision D (August 2023)

Page

• Updated device status to catalog release...........................................................................................................1

• Adjusted min Vin and Iout for design example................................................................................................. 39

• Changed RT/SYNC to RT.................................................................................................................................39

• Updated FB Pin Resistor table to show components with 3 digits values........................................................39

• Updated Inductor and Current Sense Resistor selection chapter.................................................................... 40

• Replaced "slope capacitor" with "slope resistor".............................................................................................. 40

• Updated minimum Vin for UVLO Resistor calculation...................................................................................... 41

• Added reference to MOSFET in schematic...................................................................................................... 42

• Added reference to MOSFET in schematic...................................................................................................... 42

• Adjusted components to updated design parameters...................................................................................... 43

• Adjusted components to updated design parameters...................................................................................... 44

Changes from Revision B (December 2022) to Revision C (May 2023)

Page

• Changed the device status from Advance Information to Production Data........................................................ 1

• Added Section for peak current sensor............................................................................................................ 27

13 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most

current data available for the designated devices. This data is subject to change without notice and revision of

this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

LM5177

SNVSBU4F – JUNE 2022 – REVISED JANUARY 2025

www.ti.com

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