SNVS509F April 2007 – November 2023 LM25116
PRODUCTION DATA
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Detailed Description
-
7 Application and Implementation
- 7.1 Application Information
- 7.2
Typical Application
- 7.2.1 Design Requirements
- 7.2.2
Detailed Design Procedure
- 7.2.2.1 Timing Resistor
- 7.2.2.2 Output Inductor
- 7.2.2.3 Current Sense Resistor
- 7.2.2.4 Ramp Capacitor
- 7.2.2.5 Output Capacitors
- 7.2.2.6 Input Capacitors
- 7.2.2.7 VCC Capacitor
- 7.2.2.8 Bootstrap Capacitor
- 7.2.2.9 Soft Start Capacitor
- 7.2.2.10 Output Voltage Divider
- 7.2.2.11 UVLO Divider
- 7.2.2.12 MOSFETs
- 7.2.2.13 MOSFET Snubber
- 7.2.2.14 Error Amplifier Compensation
- 7.2.2.15 Comprehensive Equations
- 7.2.3 Application Curves
- 7.3 Power Supply Recommendations
- 7.4 Layout
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
- PWP|20
Thermal pad, mechanical data (Package|Pins)
- PWP|20
Orderable Information
5.7 Typical Characteristics
Figure 5-1 Typical Application Circuit Efficiency
Figure 5-3 Driver Dead-time vs Temperature
Figure 5-5 Driver Sink Current vs VCC
Figure 5-7 LO High RDS(ON) vs VCC
Figure 5-9 LO Low RDS(ON) vs VCC
Figure 5-11 Forced HO Off-time vs Temperature VCCX = 5 V
Figure 5-13 Frequency vs RT
Figure 5-15 Frequency vs Temperature
Figure 5-17 Frequency vs Temperature
Figure 5-19 VIN Operating Current vs Temperature
Figure 5-21 VCC UVLO vs Temperature
Figure 5-23 VCC vs ICC
Figure 5-2 Driver Source Current vs VCC
Figure 5-4 HO High RDS(ON) vs VCC
Figure 5-6 HO Low RDS(ON) vs VCC
Figure 5-8 EN Input Threshold vs Temperature
Figure 5-10 HB to SW UVLO vs Temperature
Figure 5-12 HB DC Bias Current vs Temperature
Figure 5-14 Error Amp Gain vs Frequency
Figure 5-16 Error Amp Phase vs Frequency
Figure 5-18 Current Limit Threshold vs Temperature
Figure 5-20 VCC vs Temperature
Figure 5-22 VCC vs VIN
Figure 5-24 VCCX Switch RDS(ON) vs VCCX