SLVSB56C
May 2012 – February 2014
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Simplified Schematic
5
Revision History
6
Terminal Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
Handling Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Fixed Frequency PWM Control
8.3.2
Slope Compensation Output Current
8.3.3
Pulse Skip Eco-mode
8.3.4
Bootstrap Voltage (BOOT)
8.3.5
Low Dropout Operation
8.3.6
Error Amplifier
8.3.7
Voltage Reference
8.3.8
Adjusting the Output Voltage
8.3.9
Enable and Adjusting Undervoltage Lockout
8.3.10
Slow Start and Tracking Pin (SS/TR)
8.3.11
Overload Recovery Circuit
8.3.12
Sequencing
8.3.13
Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
8.3.14
Overcurrent Protection and Frequency Shift
8.3.15
Selecting the Switching Frequency
8.3.16
How to Interface to RT/CLK Pin
8.3.17
Power Good (PWRGD Pin)
8.3.18
Overvoltage Transient Protection
8.3.19
Thermal Shutdown
8.3.20
Small Signal Model for Loop Response
8.3.21
Simple Small Signal Model for Peak Current Mode Control
8.3.22
Small Signal Model for Frequency Compensation
8.4
Device Functional Modes
8.4.1
Operation with VIN < 3.5 V (Minimum VIN)
8.4.2
Operation with EN Control
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedures
9.2.2.1
Selecting the Switching Frequency
9.2.2.2
Output Inductor Selection (LO)
9.2.2.3
Output Capacitor
9.2.2.4
Catch Diode
9.2.2.5
Input Capacitor
9.2.2.6
Slow Start Capacitor
9.2.2.7
Bootstrap Capacitor Selection
9.2.2.8
Under Voltage Lock Out Set Point
9.2.2.9
Output Voltage and Feedback Resistors Selection
9.2.2.10
Compensation
9.2.2.11
Power Dissipation Estimate
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
Related Links
12.2
Trademarks
12.3
Electrostatic Discharge Caution
12.4
Glossary
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DGQ|10
MPDS043F
散热焊盘机械数据 (封装 | 引脚)
DGQ|10
PPTD325B
订购信息
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