SNVSAO4D December   2017  – August 2020 LMZM33602

PRODUCTION DATA  

  1. 1Features
  2. 2Applications
  3. 3Description
  4. 4Revision History
  5. 5Pin Configuration and Functions
    1.     Pin Functions
  6. 6Specifications
    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 Switching Characteristics
    7. 6.7 Typical Characteristics (VIN = 5 V)
    8. 6.8 Typical Characteristics (VIN = 12 V)
    9. 6.9 Typical Characteristics (VIN = 24 V)
  7. 7Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Adjusting the Output Voltage
      2. 7.3.2  Feedforward Capacitor, CFF
      3. 7.3.3  Voltage Dropout
      4. 7.3.4  Switching Frequency (RT)
      5. 7.3.5  Synchronization (SYNC)
      6. 7.3.6  Input Capacitors
      7. 7.3.7  Output Capacitors
      8. 7.3.8  Output On/Off Enable (EN)
      9. 7.3.9  Programmable Undervoltage Lockout (UVLO)
      10. 7.3.10 Power Good (PGOOD)
      11. 7.3.11 Overcurrent Protection (OCP)
      12. 7.3.12 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active Mode
      2. 7.4.2 Shutdown Mode
  8. 8Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Setpoint
        3. 8.2.2.3 Feedforward Capacitor (CFF)
        4. 8.2.2.4 Setting the Switching Frequency
        5. 8.2.2.5 Input Capacitors
        6. 8.2.2.6 Output Capacitor Selection
        7. 8.2.2.7 Application Curves
  9. 9Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Custom Design With WEBENCH® Tools
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary

7.3.7 Output Capacitors

The LMZM33602 minimum and maximum output capacitance listed in Table 7-1 and Table 7-2 represents the amount of effective capacitance. The effects of DC bias and temperature variation must be considered when using ceramic capacitance. For ceramic capacitors, the package size, voltage rating, and dielectric material will contribute to differences between the standard rated value and the actual effective value of the capacitance.

When adding additional capacitance, above COUT(min), the capacitance can be ceramic type, low-ESR polymer type, or a combination of the two. See Table 7-5 for a preferred list of output capacitors by vendor.

Table 7-5 Recommended Output Capacitors
VENDORSERIESPART NUMBER(1)CAPACITOR CHARACTERISTICS
WORKING VOLTAGE (V)CAPACITANCE (3) (µF)ESR(2) (mΩ)
MurataX7RGRM32ER71E226KE15L25222
TDKX5RC3225X5R0J476K6.3472
MurataX5RGRM32ER61C476K16473
TDKX5RC3225X5R0J107M6.31002
MurataX5RGRM32ER60J107M6.31002
MurataX5RGRM32ER61A107M101002
KemetX5RC1210C107M4PAC7800161002
PanasonicPOSCAP6TPE100MI6.310018
PanasonicPOSCAP6TPE150MF6.315015
PanasonicPOSCAP10TPF150ML1015015
PanasonicPOSCAP6TPF220M9L6.32209
PanasonicPOSCAP6TPE220ML6.322012
PanasonicPOSCAP4TPF330ML433012
PanasonicPOSCAP6TPF330M9L6.33309
PanasonicPOSCAP6TPE470MAZU6.347035
(1) Capacitor Supplier Verification, RoHS, Lead-free and Material Details Consult capacitor suppliers regarding availability, material composition, RoHS and lead-free status, and manufacturing process requirements for any capacitors identified in this table.
(2) Maximum ESR @ 100 kHz, 25°C.
(3) Standard capacitance values.