JAJSM42C
may 2021 – march 2023
TPS629210-Q1
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
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
Thermal Information - DYC Package
7.6
Electrical Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Mode Selection and Device Configuration (MODE/S-CONF Pin)
8.3.2
Adjustable VO Operation (External Voltage Divider)
8.3.3
Selectable VO Operation (VSET and Internal Voltage Divider)
8.3.4
Smart Enable with Precise Threshold
8.3.5
Power Good (PG)
8.3.6
Output Discharge Function
8.3.7
Undervoltage Lockout (UVLO)
8.3.8
Current Limit and Short Circuit Protection
8.3.9
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Forced Pulse Width Modulation (PWM) Operation
8.4.2
Power Save Mode Operation (Auto PFM/PWM)
8.4.3
AEE (Automatic Efficiency Enhancement)
8.4.4
100% Duty-Cycle Operation
8.4.5
Starting into a Prebiased Load
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
Custom Design With WEBENCH® Tools
9.2.2.2
Programming the Output Voltage
9.2.2.3
External Component Selection
9.2.2.3.1
Output Filter and Loop Stability
9.2.2.3.2
Inductor Selection
9.2.2.3.3
Capacitor Selection
9.2.2.3.3.1
Output Capacitor
9.2.2.3.3.2
Input Capacitor
9.2.3
Application Curves
9.3
System Examples
9.3.1
Powering Multiple Loads
9.3.2
Inverting Buck-Boost (IBB)
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
9.5.3
Thermal Considerations
10
Device and Documentation Support
10.1
Device Support
10.1.1
サード・パーティ製品に関する免責事項
10.1.2
Development Support
10.1.2.1
Custom Design With WEBENCH® Tools
10.2
Documentation Support
10.2.1
Related Documentation
10.3
ドキュメントの更新通知を受け取る方法
10.4
サポート・リソース
10.5
Trademarks
10.6
静電気放電に関する注意事項
10.7
用語集
11
Mechanical, Packaging, and Orderable Information
7.7
Typical Characteristics
Measured with the device not switching
Figure 7-1
Typical Quiescent Current vs Temperature
Figure 7-3
Output Voltage Accuracy – External Feedback
V
OUT
= 3.3 V
Figure 7-5
Output Voltage Accuracy – VSET Selected
V
OUT
= 1.2 V
Figure 7-7
Output Voltage Accuracy – VSET Selected
V
OUT
= 1.2 V
F
SW
= 2.5 MHz
I
OUT
= 0 A
FPWM
Figure 7-9
Switching Frequency vs Temperature
Figure 7-11
High-Side RDS
ON
vs Temperature
Figure 7-13
High-Side I
LIM
vs Temperature
Figure 7-15
Low-Side I
NEG
vs Temperature
Figure 7-17
Precision Enable Threshold vs Temperature
Figure 7-2
Typical Shutdown Current vs Temperature
V
OUT
= 5.0 V
Figure 7-4
Output Voltage Accuracy – VSET Selected
V
OUT
= 1.8 V
Figure 7-6
Output Voltage Accuracy – VSET Selected
V
OUT
= 0.6 V
Figure 7-8
Output Voltage Accuracy – VSET Selected
V
OUT
= 1.2 V
F
sw
= 1.0 MHz
I
OUT
= 0 A
FPWM
Figure 7-10
Switching Frequency vs Temperature
Figure 7-12
Low-Side RDS
ON
vs Temperature
Figure 7-14
Low-Side I
LIM
vs Temperature
Figure 7-16
V
IN
UVLO Thresholds vs Temperature
Figure 7-18
Precision Enable Threshold vs Temperature