SNVSBQ5
June 2021
LMR33620AP-Q1
,
LMR33630AP-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
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
Timing Characteristics
7.7
System Characteristics
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Power-Good Flag Output
8.3.2
Enable and Start-Up
8.3.3
Current Limit and Short Circuit
8.3.4
Undervoltage Lockout and Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Auto Mode
8.4.2
Dropout
8.4.3
Minimum Switch On Time
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
Custom Design With WEBENCH® Tools
9.2.2.2
Choosing the Switching Frequency
9.2.2.3
Setting the Output Voltage
9.2.2.4
Inductor Selection
9.2.2.5
Output Capacitor Selection
9.2.2.6
Input Capacitor Selection
9.2.2.7
CBOOT
9.2.2.8
VCC
9.2.2.9
CFF Selection
9.2.2.10
External UVLO
9.2.2.11
Maximum Ambient Temperature
9.2.3
Application Curves
9.3
What to Do and What Not to Do
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Ground and Thermal Considerations
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.1.2
Development Support
12.1.2.1
Custom Design With WEBENCH® Tools
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Support Resources
12.4
Receiving Notification of Documentation Updates
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RNX|12
MPQF465A
Thermal pad, mechanical data (Package|Pins)
RNX|12
QFND597B
Orderable Information
snvsbq5_oa
snvsbq5_pm
1
Features
AEC-Q100 qualified for automotive applications:
Temperature grade 1: –40°C to +125°C, T
A
Functional Safety-Capable
Documentation available to aid functional safety system design
Configured for rugged automotive applications
Input voltage range: 3.8 V to 36 V
Output voltage range: 1 V to 24 V
Output current: 2 A, 3 A
75-mΩ/50-mΩ R
DS-ON
power MOSFETs
Peak-current-mode control
Short minimum on time of 68 ns
Frequency: 400 kHz, 2.1 MHz
Integrated compensation network
Low
EMI
and switching noise
HotRod™
package
Parallel input current paths
High power conversion at all loads
Peak efficiency > 95%
Low shutdown quiescent current of 5 µA
Low operating quiescent current of 25 µA
Create a custom design using the LMR336x0AP-Q1 with the
WEBENCH®
Power Designer