SNVS874E August   2012  – September 2021 LMZ20501

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 System Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Nano Scale Package
      2. 7.3.2 Internal Synchronous Rectifier
      3. 7.3.3 Current Limit Protection
      4. 7.3.4 Start-Up
      5. 7.3.5 Dropout Behavior
      6. 7.3.6 Power Good Flag Function
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Operation
      2. 7.4.2 PFM Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Detailed Design Procedure
        1. 8.2.1.1 Custom Design With WEBENCH® Tools
        2. 8.2.1.2 Setting The Output Voltage
        3. 8.2.1.3 Output and Feedforward Capacitors
        4. 8.2.1.4 Input Capacitors
        5. 8.2.1.5 Maximum Ambient Temperature
        6. 8.2.1.6 Options
      2. 8.2.2 Application Curves
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Soldering Information
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • SIL|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.2 Application Curves

The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.
The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.GUID-4C0758B9-A009-42C7-90B4-F8A19990C17B-low.png
VOUT = 1.8 V
Figure 8-5 Efficiency. The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.
GUID-61CBE99A-CAE4-4E46-9954-42D39F5DEA08-low.png
VOUT = 1.8 V
Figure 8-7 Regulation, AUTO Mode
GUID-6E500DAB-9E3B-4A8D-BD4A-D6630268CF88-low.png
VOUT = 1.8 V
Figure 8-9 AUTO Mode Thresholds
GUID-F0B64189-7434-4657-BDA2-212ACF465C13-low.png
VOUT = 1.2 V
Figure 8-11 Efficiency
GUID-7522D5DC-1E2B-449F-886F-A4A69FF35EB0-low.png
VOUT = 1.2 V
Figure 8-13 Regulation, AUTO Mode
GUID-971B80DF-0C65-4365-8BC7-AC86A2D9B595-low.png
VOUT = 1.2 V
Figure 8-15 AUTO Mode Thresholds
GUID-DF42CF7E-F5B7-431C-A567-28127F9B7F5A-low.png
VOUT = 3.3 V
Figure 8-17 Efficiency
GUID-ADB4C1E9-4E1E-4EF8-85FF-32B87AF72D34-low.png
VOUT = 3.3 V
Figure 8-19 Regulation, AUTO Mode
GUID-3EE98226-F05B-41E1-9454-D01B6C4AC25F-low.png
VOUT = 3.3 V
Figure 8-21 AUTO Mode Thresholds
GUID-EC4A6B0E-DAC2-4248-85FE-57BCAEB8FBB1-low.gif
VOUT = 1.8 VVIN = 4.2 V
Figure 8-6 Load Transient In PWM
GUID-892458B2-68E1-4A21-80D1-4C4E1D788807-low.gif
VOUT = 1.8 VVIN = 4.2 V
Figure 8-8 Load Transient In AUTO Mode
GUID-1FF4D619-61AF-4D6F-9ACA-64757B3362D7-low.gif
VOUT = 1.8 VVIN = 5 VIOUT = 1 A
Figure 8-10 Start-Up
GUID-517C62B5-9090-4218-B598-3659F62ED0C2-low.gif
VOUT = 1.2 VVIN = 4.2 V
Figure 8-12 Load Transients In PWM
GUID-EF630A7A-C833-4619-A5EC-DA5C78F43E27-low.gif
VOUT = 1.2 VVIN = 4.2 V
Figure 8-14 Load Transients In AUTO Mode
GUID-F3720EDB-9008-4F23-A2F9-ADA5EEFCB5CC-low.gif
VOUT = 1.2 VVIN = 5 VIOUT = 1 A
Figure 8-16 Start-Up
GUID-6587264D-34CC-414F-95DA-9A901A2C9496-low.gif
VOUT = 3.3 VVIN = 5 V
Figure 8-18 Load Transients In PWM Mode
GUID-0BB2CAB4-F4E1-4C36-961C-06F65D995081-low.gif
VOUT = 3.3 VVIN = 5 V
Figure 8-20 Load Transients In AUTO Mode
GUID-4D7C3D03-4CD4-4421-9434-95E3BB403685-low.gif
VOUT = 3.3 VVIN = 5 VIOUT = 1 A
Figure 8-22 Start-Up