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

5 Pin Configuration and Functions

GUID-E2539F9E-A29E-490F-823C-12F697ABB682-low.gif Figure 5-1 8-PinsUSIP Package (SIL)(Top View)
Table 5-1 Pin Functions
PIN TYPE(1) DESCRIPTION
NUMBER NAME
1 PG O Power-good flag; open drain. Connect to logic supply through a resistor. High = power good; low = power bad. If not used, leave unconnected.
2 EN I Enable input. High = On, Low = Off. A valid input voltage, on pin 8, must be present before EN is asserted. Do not float.
3 MODE I Mode selection input. High = forced PWM. Low = AUTO mode with PFM at light load. Do not float.
4 FB I Feedback input to controller. Connect to output through feedback divider.
5 VOUT P Regulated output voltage. Connect to COUT.
6 GND G Ground for all circuitry. Reference point for all voltages
7 NC — This pin must be left floating. Do not connect to ground or any other node.
8 VIN P Input supply to regulator. Connect to input capacitor(s) as close as possible to the VIN pin and GND pin of the module.
EP EP G Ground and heat-sink connection. See Section 10.1 for more information.
(1) G = Ground, I = Input, O = Output, P = Power