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TPSM843A26 4-V to 18-V Input, 16-A, Buck Power Module with Internally Compensated, Advanced Current Mode Control
SLUSF63B
may 2023 – july 2023
TPSM843A26
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TPSM843A26 4-V to 18-V Input, 16-A, Buck Power Module with Internally Compensated, Advanced Current Mode Control
1
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VIN Pins and VIN UVLO
7.3.2
Internal Bypassing (BP5)
7.3.3
Enable and Adjustable UVLO
7.3.3.1
Internal Sequence of Events During Start-up
7.3.4
Switching Frequency Selection
7.3.5
Switching Frequency Synchronization to an External Clock
7.3.5.1
Internal PWM Oscillator Frequency
7.3.5.2
Loss of Synchronization
7.3.5.3
Interfacing the SYNC/FSEL Pin
7.3.6
Remote Sense Amplifier and Adjusting the Output Voltage
7.3.7
Loop Compensation Guidelines
7.3.7.1
Output Filter Inductor Tradeoffs
7.3.7.2
Ramp Capacitor Selection
7.3.7.3
Output Capacitor Selection
7.3.7.4
Design Method for Good Transient Response
7.3.8
Soft Start and Prebiased Output Start-up
7.3.9
MSEL Pin
7.3.10
Power Good (PG)
7.3.11
Output Overload Protection
7.3.11.1
Positive Inductor Current Protection
7.3.11.2
Negative Inductor Current Protection
7.3.12
Output Overvoltage and Undervoltage Protection
7.3.13
Overtemperature Protection
7.3.14
Output Voltage Discharge
7.4
Device Functional Modes
7.4.1
Forced Continuous-Conduction Mode
7.4.2
Discontinuous Conduction Mode During Soft Start
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
1.0-V Output, 1-MHz Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Switching Frequency
8.2.1.2.2
Output Inductor Selection
8.2.1.2.3
Output Capacitor
8.2.1.2.4
Input Capacitor
8.2.1.2.5
Adjustable Undervoltage Lockout
8.2.1.2.6
Output Voltage Resistors Selection
8.2.1.2.7
Bootstrap Capacitor Selection
8.2.1.2.8
BP5 Capacitor Selection
8.2.1.2.9
PG Pullup Resistor
8.2.1.2.10
Current Limit Selection
8.2.1.2.11
Soft-Start Time Selection
8.2.1.2.12
Ramp Selection and Control Loop Stability
8.2.1.2.13
MSEL Pin
8.2.1.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
8.4.3
Thermal Performance
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RDG|25
MPQF603
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slusf63b_oa
slusf63b_pm
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Data Sheet
TPSM843A26
4-V to 18-V Input,
16
-A, Buck Power Module with Internally Compensated, Advanced Current Mode Control
