ZHCSJ52A
December 2019 – August 2021
LP875701-Q1
PRODUCTION DATA
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
I2C Serial Bus Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Descriptions
7.3.1
Multi-Phase DC/DC Converters
7.3.1.1
Overview
7.3.1.2
Multiphase Switcher Configurations
7.3.1.3
Buck Converter Load-Current Measurement
7.3.1.4
Spread-Spectrum Mode
7.3.2
Sync Clock Functionality
7.3.3
Power-Up
7.3.4
Regulator Control
7.3.4.1
Enabling and Disabling Regulators
7.3.5
Enable and Disable Sequences
7.3.6
Device Reset Scenarios
7.3.7
Diagnosis and Protection Features
7.3.7.1
Power-Good Information (PGOOD pin)
7.3.7.2
Warnings for Diagnosis (Interrupt)
7.3.7.2.1
Output Power Limit
7.3.7.2.2
Thermal Warning
7.3.7.3
Protection (Regulator Disable)
7.3.7.3.1
Short-Circuit and Overload Protection
7.3.7.3.2
Overvoltage Protection
7.3.7.3.3
Thermal Shutdown
7.3.7.4
Fault (Power Down)
7.3.7.4.1
Undervoltage Lockout
7.3.8
GPIO Signal Operation
7.3.9
Digital Signal Filtering
7.4
Device Functional Modes
7.4.1
Modes of Operation
7.5
Programming
7.5.1
I2C-Compatible Interface
7.5.1.1
Data Validity
7.5.1.2
Start and Stop Conditions
7.5.1.3
Transferring Data
7.5.1.4
I2C-Compatible Chip Address
7.5.1.5
Auto-Increment Feature
7.6
Register Maps
7.6.1
Register Descriptions
53
7.6.1.1
DEV_REV
7.6.1.2
OTP_REV
7.6.1.3
BUCK0_CTRL1
7.6.1.4
BUCK0_DELAY
7.6.1.5
GPIO2_DELAY
7.6.1.6
GPIO3_DELAY
7.6.1.7
RESET
7.6.1.8
CONFIG
7.6.1.9
INT_TOP1
7.6.1.10
INT_TOP2
7.6.1.11
INT_BUCK_0_1
7.6.1.12
INT_BUCK_2_3
7.6.1.13
TOP_STAT
7.6.1.14
BUCK_0_1_STAT
7.6.1.15
BUCK_2_3_STAT
7.6.1.16
TOP_MASK1
7.6.1.17
TOP_MASK2
7.6.1.18
BUCK_0_1_MASK
7.6.1.19
BUCK_2_3_MASK
7.6.1.20
SEL_I_LOAD
7.6.1.21
I_LOAD_2
7.6.1.22
I_LOAD_1
7.6.1.23
PGOOD_CTRL1
7.6.1.24
PGOOD_CTRL2
7.6.1.25
PGOOD_FLT
7.6.1.26
PLL_CTRL
7.6.1.27
PIN_FUNCTION
7.6.1.28
GPIO_CONFIG
7.6.1.29
GPIO_IN
7.6.1.30
GPIO_OUT
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.1.1
Inductor Selection
8.2.1.2
Input Capacitor Selection
8.2.1.3
Output Capacitor Selection
8.2.1.4
Snubber Components
8.2.1.5
Supply Filtering Components
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
接收文档更新通知
11.2
支持资源
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RNF|26
MPQF469A
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsj52a_oa
zhcsj52a_pm
7.3.7.2
Warnings for Diagnosis (Interrupt)
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