SLVS833E
March 2010 – October 2020
TPS62065
,
TPS62067
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
Mode Selection (TPS62065)
8.3.2
Power Good Output (TPS62067)
8.3.3
Enable
8.3.4
Clock Dithering
8.3.5
Undervoltage Lockout
8.3.6
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Soft Start
8.4.2
Power Save Mode
8.4.3
Dynamic Voltage Positioning
8.4.4
100% Duty Cycle Low Dropout Operation
8.4.5
Internal Current Limit and Fold-Back Current Limit for Short Circuit Protection
8.4.6
Output Capacitor Discharge
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
Output Voltage Setting
9.2.2.2
Output Filter Design (Inductor and Output Capacitor)
9.2.2.2.1
Inductor Selection
9.2.2.2.2
Output Capacitor Selection
9.2.2.2.3
Input Capacitor Selection
9.2.2.3
Checking Loop Stability
9.2.3
Application Curves
9.3
System Example
9.3.1
TPS62067 Adjustable 1.8-V Output
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
Third-Party Products Disclaimer
12.2
Related Links
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
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
DSG|8
MPDS308C
サーマルパッド・メカニカル・データ
DSG|8
QFND141I
発注情報
slvs833e_oa
slvs833e_pm
9.2.3
Application Curves
Figure 9-2
V
OUT
= 1.2 V, Auto PFM/PWM Mode, Linear Scale
Figure 9-4
V
OUT
= 3.3 V, Auto PFM/PWM Mode, Linear Scale
Figure 9-6
Auto PFM/PWM Mode
Figure 9-8
Typical Operation (PWM Mode)
Figure 9-10
Load Transient Response PWM Mode 0.2 A to 1 A
Figure 9-12
Load Transient Response 200 mA to 1500 mA
Figure 9-14
Line Transient PFM Mode
Figure 9-16
Start-up TPS62067 Into 2.2-Ω Load With Power Good
Figure 9-18
Shutdown TPS62067
Figure 9-3
V
OUT
= 1.8 V, Auto PFM/PWM Mode, Linear Scale
Figure 9-5
Auto PFM/PWM Mode vs. Forced PWM Mode, Logarithmic Scale
Figure 9-7
Forced PWM Mode
Figure 9-9
Typical Operation (PFM Mode)
Figure 9-11
Load Transient PFM Mode 20 mA to 250 mA
Figure 9-13
Line Transient Response PWM Mode
Figure 9-15
Startup Into Load – V
OUT
1.8 V
Figure 9-17
Output Discharge