SNVSAZ1A
August 2017 – September 2020
LV14360
PRODUCTION DATA
1
Features
2
Applications
3
Description
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
Switching Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Fixed Frequency Peak Current Mode Control
8.3.2
Slope Compensation
8.3.3
Sleep Mode
8.3.4
Low Dropout Operation and Bootstrap Voltage (BOOT)
8.3.5
Adjustable Output Voltage
8.3.6
Enable and Adjustable Undervoltage Lockout
8.3.7
External Soft Start
8.3.8
Switching Frequency and Synchronization (RT/SYNC)
8.3.9
Power Good (PGOOD)
8.3.10
Overcurrent and Short-Circuit Protection
8.3.11
Overvoltage Protection
8.3.12
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Active Mode
8.4.3
CCM Mode
8.4.4
Light Load Operation
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
Output Voltage Set-Point
9.2.2.2
Switching Frequency
9.2.2.3
Output Inductor Selection
9.2.2.4
Output Capacitor Selection
9.2.2.5
Schottky Diode Selection
9.2.2.6
Input Capacitor Selection
9.2.2.7
Bootstrap Capacitor Selection
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Glossary
12.5
Electrostatic Discharge Caution
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
DDA|8
PPTD058I
Orderable Information
snvsaz1a_oa
1
Features
4.3-V to 60-V input range
3-A continuous output current
300-µA operating quiescent current
155-mΩ high-side MOSFET
Current mode control
Adjustable switching frequency from 200 kHz to 2 MHz
Frequency synchronization to external clock
Internal compensation for ease of use
High duty cycle operation supported
Precision enable input
1-µA shutdown current
Thermal, overvoltage, and short protection
8-pin HSOIC with
PowerPAD™
package