SLVS847A
November 2008 – December 2016
TPS54917
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Undervoltage Lockout (UVLO)
8.3.2
Slow Start or Enable (SS/ENA)
8.3.3
VBIAS Regulator (VBIAS)
8.3.4
Voltage Reference
8.3.5
Oscillator and PWM Ramp
8.3.6
Error Amplifier
8.3.7
PWM Control
8.3.8
Dead-Time Control and MOSFET Drivers
8.3.9
Overcurrent Protection
8.3.10
Thermal Shutdown
8.3.11
Power Good (PWRGD)
8.4
Device Functional Modes
8.4.1
PWM Operation
8.4.2
Standby Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Component Selection
9.2.2.2
Input Filter
9.2.2.3
Feedback Circuit
9.2.2.4
Operating Frequency
9.2.2.5
Output Filter
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Estimated Circuit Area
11.2
Layout Example
11.3
Thermal Considerations
12
Device and Documentation Support
12.1
Device Support
12.1.1
Developmental Support
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RUV|34
MPQF228A
Thermal pad, mechanical data (Package|Pins)
RUV|34
QFND174C
Orderable Information
slvs847a_oa
slvs847a_pm
5
Device Comparison Table
PART NUMBER
DESCRIPTION
TPS40000
DC-DC controller
TPS56300
DC-DC controller
TPS54619 and TPS54617
6-A converters
TPS54910
9-A converter