SNVSB33
May 2018
LM3102-Q1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application Schematic
Efficiency vs Load Current (VOUT = 3.3 V)
4
Revision History
5
Pin Configuration and Functions
Pin 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
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
COT Control Circuit Overview
7.3.2
Start-Up Regulator (VCC)
7.3.3
Regulation Comparator
7.3.4
Zero Coil Current Detect
7.3.5
Overvoltage Comparator
7.3.6
Current Limit
7.3.7
N-Channel MOSFET and Driver
7.3.8
Soft Start
7.3.9
Thermal Protection
7.3.10
Thermal Derating
7.4
Device Functional Modes
7.4.1
ON-Time Timer, Shutdown
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Design Steps for the LM3102-Q1 Application
8.2.2.3
External Components
8.2.3
Application Curve
8.3
System Examples
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
Development Support
11.1.1.1
Custom Design With WEBENCH® Tools
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PWP|20
MHTS001G
Thermal pad, mechanical data (Package|Pins)
PWP|20
PPTD289
Orderable Information
snvsb33_oa
snvsb33_pm
6.4
Thermal Information
THERMAL METRIC
(1)
LM3102-Q1
UNIT
PWP (HTSSOP)
20 PINS
R
θJA
Junction-to-ambient thermal resistance
30
°C/W
R
θJC(top)
Junction-to-case (top) thermal resistance
6.5
°C/W
(1)
For more information about traditional and new thermal metrics, see the
Semiconductor and IC Package Thermal Metrics
application report,
SPRA953
.