SNVSAY7D
August 2018 – August 2022
LMR36006-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 Requirements
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
Forced PWM Operation
8.4.3
Dropout
8.4.4
Minimum Switch On-Time
8.4.5
Spread Spectrum Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design 1: Low Power 24-V, 600-mA PFM Converter
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Custom Design With WEBENCH Tools
9.2.1.2.2
Choosing the Switching Frequency
9.2.1.2.3
Setting the Output Voltage
9.2.1.2.3.1
FB for Adjustable Output
9.2.1.2.4
Inductor Selection
9.2.1.2.5
Output Capacitor Selection
9.2.1.2.6
Input Capacitor Selection
9.2.1.2.7
CBOOT
9.2.1.2.8
VCC
9.2.1.2.9
CFF Selection
9.2.1.2.9.1
External UVLO
9.2.1.2.10
Maximum Ambient Temperature
9.2.1.3
Application Curves
9.2.2
Design 2: High Density 12-V , 600-mA FPWM Converter
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.3
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
Development Support
12.1.1.1
Custom Design With WEBENCH® Tools
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
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
snvsay7d_oa
snvsay7d_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
Designed for
automotive applications
Junction temperature range –40°C to +150°C
Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
0.2-V dropout with 0.6-A load (typical)
±1.5% reference voltage tolerance
3.3-V
fixed-output voltage option
available
Suited for scalable power supplies
Pin compatible with:
LMR36015-Q1
(60 V,
1.5 A
)
LMR33620/30-Q1
(36 V, 2 A, or 3 A)
400-kHz,
2.1-MHz
frequency option
s
Integration reduces solution size and cost
Small, 2-mm × 3-mm
VQFN package with wettable flanks
Few external components
Low power dissipation across load spectrum
94% efficiency at 400 kHz (12 V
IN
, 5 V
OUT
, 0.6 A)
Increased light load efficiency in PFM
Low operating quiescent current of 2
6
µA
Optimized for ultra low EMI requirements
Meets CISPR25 class 5 standard
HotRod™
package minimizes switch node ringing
Parallel input path minimizes parasitic inductance
Spread spectrum reduces peak emissions
Create a custom design using the LMR36006-Q1 with the
WEBENCH®
Power Designer