ZHCSEL9B
december 2015 – may 2023
TPS65265
PRODUCTION DATA
1
1
特性
2
应用
3
说明
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
Adjusting the Output Voltage
8.3.2
Mix PGOOD, PG_DLY Functions
8.3.2.1
Programmable PGOOD DELAY
8.3.2.2
Relay Control
8.3.3
Enable and Adjusting UVLO
8.3.4
Soft-Start Time
8.3.5
Power-Up Sequencing
8.3.5.1
External Power Sequencing
8.3.5.2
Automatic Power Sequencing
8.3.6
V7V Low Dropout Regulator and Bootstrap
8.3.7
Out of Phase Operation
8.3.8
Output Overvoltage Protection (OVP)
8.3.9
PSM
8.3.10
Slope Compensation
8.3.11
Overcurrent Protection
8.3.11.1
High-Side MOSFET Overcurrent Protection
8.3.11.2
Low-Side MOSFET Overcurrent Protection
8.3.12
Adjustable Switching Frequency
8.3.13
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Operation With VIN < 4 V (Minimum VIN)
8.4.2
Operation With EN Control
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 Inductor Selection
9.2.2.2
Output Capacitor Selection
9.2.2.3
Input Capacitor Selection
9.2.2.4
Loop Compensation
9.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
接收文档更新通知
10.2
支持资源
10.3
Trademarks
10.4
静电放电警告
10.5
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RHB|32
MPQF130D
散热焊盘机械数据 (封装 | 引脚)
RHB|32
QFND029X
订购信息
zhcsel9b_oa
zhcsel9b_pm
7.6
Typical Characteristics
Figure 7-1
Voltage Reference vs Temperature
Figure 7-3
Shutdown Quiescent vs Temperature
Figure 7-5
Vin UVLO Falling vs Temperature
Figure 7-7
EN Pin Pullup Current vs Temperature, EN = 1.5 V
Figure 7-9
EN Pin Threshold Falling vs Temperature
Figure 7-11
SEQ_DLY Pin Pullup Current vs Temperature, PG_DLY = 0.5 V
Figure 7-13
Buck1 High-Side Current Limit vs Temperature
Figure 7-15
Buck3 High-Side Current Limit vs Temperature
Figure 7-17
Buck1 Efficiency, V
IN
= 12 V, F
sw
= 610 kHz
Figure 7-19
Buck3 Efficiency, V
IN
= 12 V, F
sw
= 610 kHz
Figure 7-21
Buck2, Load Regulation
Figure 7-2
Oscillator Frequency vs Temperature
Figure 7-4
Vin UVLO Raising vs Temperature
Figure 7-6
EN Pin Pullup Current vs Temperature, EN = 1.0 V
Figure 7-8
EN Pin Threshold Raising vs Temperature
Figure 7-10
PG_DLY Pin Pullup Current vs Temperature, PG_DLY = 0.5 V
Figure 7-12
Soft-Start Time vs Temperature
Figure 7-14
Buck2 High-Side Current Limit vs Temperature
Figure 7-16
Minimum On Time vs Temperature
Figure 7-18
Buck2 Efficiency, V
IN
= 12 V, F
sw
= 610 kHz
Figure 7-20
Buck1, Load Regulation
Figure 7-22
Buck3, Load Regulation