SLVSC95A
April 2017 – September 2020
TPS561201
,
TPS561208
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
Pin 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
Adaptive On-Time Control and PWM Operation
7.3.2
Pulse Skip Control (TPS561201)
7.3.3
Soft Start and Pre-Biased Soft Start
7.3.4
Current Protection
7.3.5
Undervoltage Lockout (UVLO) Protection
7.3.6
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Normal Operation
7.4.2
Eco-mode Operation
7.4.3
Standby Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Output Voltage Resistors Selection
8.2.2.3
Output Filter Selection
8.2.2.4
Input Capacitor Selection
8.2.2.5
Bootstrap Capacitor Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Custom Design With WEBENCH® Tools
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDC|6
MPDS124I
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsc95a_oa
slvsc95a_pm
8.2.3
Application Curves
Figure 8-2
Load Regulation V
IN
= 5 V
TPS56201 I
OUT
= 0.5 A
TPS56208 I
OUT
= 10 mA
Figure 8-4
Line Regulation
Figure 8-6
TPS561201 Input Voltage Ripple
Figure 8-8
TPS561201 Output Voltage Ripple, I
OUT
= 0.25 A
Figure 8-10
TPS561208 Output Voltage Ripple, I
OUT
= 0 A
Figure 8-12
TPS561201 Transient Response, 0.5 to 1.5 A
Figure 8-14
TPS561201 Start-Up Relative to V
I
Figure 8-16
TPS561201 Shutdown Relative to V
I
Figure 8-3
Load Regulation V
IN
= 12 V
Figure 8-5
TPS561201 V
OUT
= 1.05 V, Efficiency L = 2.2 µH
Figure 8-7
TPS561201 Output Voltage Ripple, I
OUT
= 10 mA
Figure 8-9
TPS561201 Output Voltage Ripple, I
OUT
= 1 A
Figure 8-11
TPS561201 Transient Response, 0.1 to 1 A
Figure 8-13
TPS561208 Transient Response 0.1 to 1 A
Figure 8-15
TPS561201 Start-Up Relative to EN
Figure 8-17
TPS561201 Shutdown Relative to EN