SLVSD46A
November 2017 – December 2021
TPS55160-Q1
,
TPS55162-Q1
,
TPS55165-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
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 — External Components
7.6
Electrical Characteristics — Supply Voltage (VINP, VINL pins)
7.7
Electrical Characteristics — Reference Voltage (VOS_FB Pin) and Output Voltage (VOUT Pin)
7.8
Electrical Characteristics — Buck-Boost
7.9
Electrical Characteristics — Undervoltage and Overvoltage Lockout
7.10
Electrical Characteristics — IGN Wakeup
7.11
Electrical Characteristics — Logic Pins PS, IGN_PWRL, SS_EN
7.12
Electrical Characteristics – Overtemperature Protection
7.13
Electrical Characteristics – Power Good
7.14
Switching Characteristics — Reference Voltage (VOS_FB Pin) and Output Voltage (VOUT Pin)
7.15
Switching Characteristics — Buck-Boost
7.16
Switching Characteristics — Undervoltage and Overvoltage Lockout
7.17
Switching Characteristics — IGN Wakeup
7.18
Switching Characteristics — Logic Pins PS, IGN_PWRL, SS_EN
7.19
Switching Characteristics – Power Good
7.20
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Spread-Spectrum Feature
8.3.2
Overcurrent Protection
8.3.3
Overtemperature Protection
8.3.4
Undervoltage Lockout and Minimum Start-Up Voltage
8.3.5
Overvoltage Lockout
8.3.6
VOUT Overvoltage Protection
8.3.7
Power-Good Pin
8.4
Device Functional Modes
8.4.1
State Diagram
8.4.2
Modes of Operation
8.4.2.1
Normal Mode
8.4.2.2
Low-Power Mode
8.4.3
Power-Up and Power-Down Sequences
8.4.4
Soft-Start Feature
8.4.5
Pulldown Resistor on VOUT
8.4.6
Output Voltage Selection
9
Application and Implementation
9.1
Application Information
9.1.1
Application Circuits for Output Voltage Configurations
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Power-Circuit Selections: CIN, L, COUT
9.2.2.1.1
Inductor Current in Step-Down Mode
9.2.2.1.2
Inductor Current in Step-Up Mode
9.2.2.1.3
Inductor Current in Buck-Boost Overlap Mode
9.2.2.1.4
Inductor Peak Current
9.2.2.2
Control-Circuit Selections
9.2.2.2.1
Bootstrap Capacitors
9.2.2.2.2
VOUT-Sense Bypass Capacitor
9.2.2.2.3
VREG Bypass Capacitor
9.2.2.2.4
PG Pullup Resistor and Delay Time
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PWP|20
MHTS001G
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsd46a_oa
slvsd46a_pm
8.2
Functional Block Diagram