SNVSB48C
April 2018 – October 2019
LMR36006
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin 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
Dropout
8.4.3
Minimum Switch On-Time
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
9.2.1.2.4
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
9.2.2
Application Curves
9.2.3
Design 2: High Density 24-V, 600-mA PFM Converter
9.2.3.1
Design Requirements
9.2.3.2
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
QFND580A
Orderable Information
snvsb48c_oa
snvsb48c_pm
1
Features
Designed for
reliable and rugged applications
Input transient protection up to 66 V
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)
Suited for scalable
industrial
power supplies
Pin compatible with:
LMR36015
(60 V,
1.5
A
)
LMR33620
/
LMR33630
(36 V, 2 A, or 3 A)
1-MHz
,
2.1-MHz
frequency option
s
Low power dissipation across load spectrum
87% efficiency at 1 MHz (24V
IN
, 5V
OUT
, 0.6A)
92% efficiency at 1 MHz (12V
IN
, 5V
OUT
, 0.6A)
Increased light load efficiency in PFM
Low operating quiescent current of 2
6
µA
Small 2-mm × 3-mm
HotRod™ package
Solution with few external components
LMR36006-Q1
and
LMR36015-Q1
available in 400 kHz and 2.1 MHz, adjustable output, and fixed 3.3 V
OUT
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 with the
WEBENCH® Power Designer