SLVSDF5D
September 2017 – October 2019
TPS50601A-SP
PRODUCTION DATA.
1
Features
Efficiency at VIN = PVIN = 5 V
2
Applications
3
Description
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VIN and Power VIN Pins (VIN and PVIN)
7.3.2
Voltage Reference
7.3.3
Adjusting the Output Voltage
7.3.4
Safe Start-Up Into Prebiased Outputs
7.3.5
Error Amplifier
7.3.6
Slope Compensation
7.3.7
Enable and Adjust UVLO
7.3.8
Adjustable Switching Frequency and Synchronization (SYNC)
7.3.9
Slow Start (SS/TR)
7.3.10
Power Good (PWRGD)
7.3.11
Sequencing (SS/TR)
7.3.12
Output Overvoltage Protection (OVP)
7.3.13
Overcurrent Protection
7.3.13.1
High-Side MOSFET Overcurrent Protection
7.3.13.2
Low-Side MOSFET Overcurrent Protection
7.3.14
Thermal Shutdown
7.3.15
Turn-On Behavior
7.3.16
Small Signal Model for Frequency Compensation
7.4
Device Functional Modes
7.4.1
Fixed-Frequency PWM Control
7.4.2
Continuous Current Mode (CCM) Operation
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
Operating Frequency
8.2.2.2
Output Inductor Selection
8.2.2.3
Output Capacitor Selection
8.2.2.4
Slow Start Capacitor Selection
8.2.2.5
Undervoltage Lockout (UVLO) Set Point
8.2.2.6
Output Voltage Feedback Resistor Selection
8.2.2.7
Compensation Component Selection
8.2.3
Parallel Operation
8.2.4
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
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)
HKH|20
MCDF004D
KGD|0
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsdf5d_oa
slvsdf5d_pm
6.6
Typical Characteristics
Figure 1.
Efficiency at VIN = PVIN = 5 V
Figure 3.
Internal Oscillator Frequency vs Temperature
Figure 5.
EN Pin Hysteresis Current vs Temperature
Figure 7.
EN Pin UVLO Threshold vs Temperature
Figure 9.
Slow Start Charge Current vs Temperature
Figure 11.
High-Side Current Limit Threshold vs Temperature
Figure 13.
High-Side R
DS(ON)
vs Temperature
Figure 2.
Voltage Reference vs Temperature
Figure 4.
Shutdown Quiescent Current vs Temperature
Figure 6.
EN Pin Pull-Up Current vs Temperature
Figure 8.
Non-Switching Operating Quiescent Current (VIN) vs Temperature
Figure 10.
(SS-V
SENSE
) Offset vs Temperature
Figure 12.
Low-Side R
DS(ON)
vs Temperature
VIN = 5 V
VOUT = 2.5 V
ƒSW = 500 kHz
Figure 14.
Current Sharing vs Load Current