ZHCSFM7C
October 2016 – August 2023
TPS568215
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
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
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Operation and D-CAP3 Control Mode
7.3.2
Eco-mode Control
7.3.3
4.7 V LDO and External Bias
7.3.4
MODE Selection
7.3.5
Soft Start and Pre-biased Soft Start
7.3.6
Enable and Adjustable UVLO
7.3.7
Power Good
7.3.8
Overcurrent Protection and Undervoltage Protection
7.3.9
Out-of-Bounds Operation
7.3.10
UVLO Protection
7.3.11
Thermal Shutdown
7.3.12
Output Voltage Discharge
7.4
Device Functional Modes
7.4.1
Light Load Operation
7.4.2
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
External Component Selection
8.2.2.1.1
Output Voltage Set Point
8.2.2.1.2
Switching Frequency and Mode Selection
8.2.2.1.3
Inductor Selection
8.2.2.1.4
Output Capacitor Selection
8.2.2.1.5
Input Capacitor Selection
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
第三方产品免责声明
9.1.2
Development Support
9.2
接收文档更新通知
9.3
支持资源
9.4
Trademarks
9.5
静电放电警告
9.6
术语表
10
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RNN|18
MPQF456D
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsfm7c_oa
6.7
Typical Characteristics
Figure 6-1
Quiescent Current vs Temperature
Figure 6-3
Feedback Voltage vs Temperature
Figure 6-5
Low-side R
dson
vs Temperature
Figure 6-7
Enable Pull-Up Current, V
EN
=1.0V
Figure 6-9
PGOOD Threshold vs Temperature
Figure 6-11
Efficiency with Internal VREG5 = 4.7 V, V
IN
= 12 V
Figure 6-13
Efficiency, Mode = FCCM, F
SW
= 400kHz
Figure 6-15
Efficiency, Mode = FCCM, F
SW
= 1200kHz
Figure 6-17
F
SW
Load Regulation, Mode = FCCM, F
SW
= 400kHz
Figure 6-19
F
SW
Load Regulation, Mode = FCCM, F
SW
= 1200kHz
Figure 6-2
Shutdown Current vs Temperature
Figure 6-4
High-side R
dson
vs Temperature
Figure 6-6
Soft-Start Charge Current vs Temperature
Figure 6-8
Enable Pull-Up Current, V
EN
=1.3V
Figure 6-10
Valley Current Limit vs Temperature
Figure 6-12
Efficiency, Mode = DCM, F
SW
= 400kHz
Figure 6-14
Efficiency, Mode = DCM, F
SW
= 1200kHz
Figure 6-16
Load Regulation, F
SW
= 400kHz
Figure 6-18
F
SW
Load Regulation, Mode = FCCM, F
SW
= 800kHz
Figure 6-20
F
SW
Load Regulation, Mode = DCM, V
IN
= 12V, V
OUT
=1.2V