JAJSJM5C
January 2022 – June 2024
TPS62843
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
4
Device Comparison Table
5
Pin Configuration and 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
Smart Enable and Shutdown (EN)
7.3.2
Soft Start
7.3.3
VSET Pin: Output Voltage Selection
7.3.4
Undervoltage Lockout (UVLO)
7.3.5
Switch Current Limit, Short-Circuit Protection
7.3.6
Thermal Shutdown
7.3.7
Output Voltage Discharge
7.4
Device Functional Modes
7.4.1
Power Save Mode Operation
7.4.2
100% Mode Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
サード・パーティ製品に関する免責事項
9.2
ドキュメントの更新通知を受け取る方法
9.3
サポート・リソース
9.4
Trademarks
9.5
静電気放電に関する注意事項
9.6
用語集
10
Revision History
11
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
メカニカル・データ(パッケージ|ピン)
DRL|6
YKA|6
サーマルパッド・メカニカル・データ
発注情報
jajsjm5c_oa
jajsjm5c_pm
8.2.3
Application Curves
Figure 8-2
Efficiency at V
OUT
= 0.4V
Figure 8-4
Efficiency at V
OUT
= 1.2V
Figure 8-6
Efficiency at V
OUT
= 3.3V
Figure 8-8
Output Voltage vs Output Current at V
OUT
= 0.7V
Figure 8-10
Switching Frequency vs Output Current at V
OUT
= 0.7V
Figure 8-12
Switching Frequency vs Output Current at V
OUT
= 1.8V
Figure 8-14
Typical Operation at V
OUT
= 0.7V, I
OUT
= 100μA
Figure 8-16
Typical Operation at V
OUT
= 0.7V, I
OUT
= 400mA
Figure 8-18
Load Transient at V
OUT
= 0.7V, I
OUT
= 100μA to 400mA
Figure 8-20
Load Transient at V
OUT
= 1.2V, I
OUT
= 100μA to 20mA
Figure 8-22
Load Transient at V
OUT
= 1.2V, I
OUT
= 5mA to 400mA
Figure 8-24
AC Load Sweep at V
OUT
= 1.2V, I
OUT
= 1mA to 600mA
Figure 8-26
Line Transient at V
OUT
= 1.2V, I
OUT
= 400mA, V
IN
= 3.6V to 4.2V
Figure 8-28
Start-Up Delay Time, VSET = GND
Figure 8-3
Efficiency at V
OUT
= 0.7V
Figure 8-5
Efficiency at V
OUT
= 1.8V
Figure 8-7
Output Voltage vs Output Current at V
OUT
= 1.2V
Figure 8-9
Switching Frequency vs Output Current at V
OUT
= 0.4V
Figure 8-11
Switching Frequency vs Output Current at V
OUT
= 1.2V
Figure 8-13
Power Supply Rejection Ratio (PSRR) at V
OUT
= 1.8V
Figure 8-15
Typical Operation at V
OUT
= 0.7V, I
OUT
= 20mA
Figure 8-17
Load Transient at V
OUT
= 0.7V, I
OUT
= 100 μA to 20 mA
Figure 8-19
Load Transient at V
OUT
= 0.7V, I
OUT
= 5mA to 400mA
Figure 8-21
Load Transient at V
OUT
= 1.2V, I
OUT
= 100μA to 400mA
Figure 8-23
AC Load Sweep at V
OUT
= 0.7V, I
OUT
= 1mA to 600mA
Figure 8-25
Line Transient at V
OUT
= 0.7V, I
OUT
= 400mA, V
IN
= 3.6V to 4.2V
Figure 8-27
Shutdown, Output Discharge at V
OUT
= 0.7V
Figure 8-29
Start-Up Delay Time, VSET = 10kohms