Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
Menu
Product
Email
PDF
Order now
LP87332A-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
SNVSAB5A
September 2017 – June 2021
LP87332A-Q1
PRODUCTION DATA
CONTENTS
SEARCH
LP87332A-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
1
Features
2
Applications
3
Description
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 Parameters
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
DC/DC Converters
7.3.1.1
Overview
7.3.1.2
Transition Between PWM and PFM Modes
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
Low-Dropout Linear Regulators (LDOs)
7.3.4
Power-Up
7.3.5
Regulator Control
7.3.5.1
Enabling and Disabling Regulators
7.3.5.2
Changing Output Voltage
7.3.6
Enable and Disable Sequences
7.3.7
Device Reset Scenarios
7.3.8
Diagnosis and Protection Features
7.3.8.1
Power-Good Information (PGOOD pin)
7.3.8.1.1
PGOOD Pin Gated Mode
7.3.8.1.2
PGOOD Pin Continuous Mode
7.3.8.1.3
PGOOD Pin Inactive Mode
7.3.8.2
Warnings for Diagnosis (Interrupt)
7.3.8.2.1
Output Power Limit
7.3.8.2.2
Thermal Warning
7.3.8.3
Protection (Regulator Disable)
7.3.8.3.1
Short-Circuit and Overload Protection
7.3.8.3.2
Overvoltage Protection
7.3.8.3.3
Thermal Shutdown
7.3.8.4
Fault (Power Down)
7.3.8.4.1
Undervoltage Lockout
7.3.9
Operation of the GPO Signals
7.3.10
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
7.6.1.1
DEV_REV
7.6.1.2
OTP_REV
7.6.1.3
BUCK0_CTRL_1
7.6.1.4
BUCK0_CTRL_2
7.6.1.5
BUCK1_CTRL_1
7.6.1.6
BUCK1_CTRL_2
7.6.1.7
BUCK0_VOUT
7.6.1.8
BUCK1_VOUT
7.6.1.9
LDO0_CTRL
7.6.1.10
LDO1_CTRL
7.6.1.11
LDO0_VOUT
7.6.1.12
LDO1_VOUT
7.6.1.13
BUCK0_DELAY
7.6.1.14
BUCK1_DELAY
7.6.1.15
LDO0_DELAY
7.6.1.16
LDO1_DELAY
7.6.1.17
GPO_DELAY
7.6.1.18
GPO2_DELAY
7.6.1.19
GPO_CTRL
7.6.1.20
CONFIG
7.6.1.21
PLL_CTRL
7.6.1.22
PGOOD_CTRL_1
7.6.1.23
PGOOD_CTRL_2
7.6.1.24
PG_FAULT
7.6.1.25
RESET
7.6.1.26
INT_TOP_1
7.6.1.27
INT_TOP_2
7.6.1.28
INT_BUCK
7.6.1.29
INT_LDO
7.6.1.30
TOP_STAT
7.6.1.31
BUCK_STAT
7.6.1.32
LDO_STAT
7.6.1.33
TOP_MASK_1
7.6.1.34
TOP_MASK_2
7.6.1.35
BUCK_MASK
7.6.1.36
LDO_MASK
7.6.1.37
SEL_I_LOAD
7.6.1.38
I_LOAD_2
7.6.1.39
I_LOAD_1
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
Buck Input Capacitor Selection
8.2.1.3
Buck Output Capacitor Selection
8.2.1.4
LDO Input Capacitor Selection
8.2.1.5
LDO Output Capacitor Selection
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
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RHD|28
MPQF133F
Thermal pad, mechanical data (Package|Pins)
RHD|28
QFND560A
Orderable Information
snvsab5a_oa
snvsab5a_pm
search
No matches found.
Full reading width
Full reading width
Comfortable reading width
Expanded reading width
Card for each section
Card with all content