SBVS398A December   2021  – September 2022 TPS7A21

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Enable (EN)
      2. 7.3.2 Low Output Noise
      3. 7.3.3 Active Discharge
      4. 7.3.4 Dropout Voltage
      5. 7.3.5 Foldback Current Limit
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Thermal Overload Protection (TSD)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended Capacitor Types
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Load Transient Response
      4. 8.1.4 Undervoltage Lockout (UVLO) Operation
      5. 8.1.5 Power Dissipation (PD)
      6. 8.1.6 Estimating Junction Temperature
      7. 8.1.7 Recommended Area For Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Power Dissipation and Device Operation
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 DSBGA Mounting
        2. 8.4.1.2 DSBGA Light Sensitivity
      2. 8.4.2 Layout Example
  9. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    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
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

Typical Characteristics

VIN = 3.6 V, VOUT = 3.3 V, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, and TA = 25°C (unless otherwise noted)

GUID-20210729-CA0I-3TW9-MQDX-66ZMGZJ078G7-low.png
VEN = 1 V
Figure 6-1 Output Voltage Accuracy vs IOUT
GUID-20211122-SS0I-FSLT-4B1M-RQ1JRXK5SJJ2-low.png
VEN = 1 V
Figure 6-3 Output Voltage Accuracy vs VIN
GUID-20211005-SS0I-T6HP-CLZT-50MWWQGSJBBP-low.gif
VEN = 1 V
Figure 6-5 Load Regulation vs IOUT
VEN = 1 V
Figure 6-7 Dropout Voltage vs IOUT
GUID-20210729-CA0I-KLN3-7GRM-H720RG3P1KX6-low.png
VEN = 1 V
Figure 6-9 IQ vs VIN
GUID-20210729-CA0I-CW4N-JKSP-ZH6VSLZV3M11-low.png
VEN = 1 V
Figure 6-11 IGND vs IOUT
VEN = 0 V, IOUT = 0 mA
Figure 6-13 Shutdown Current vs VIN
GUID-20210729-CA0I-L8DJ-J1PZ-RNB7RDGPWL2X-low.png
 
Figure 6-15 Enable Logic Threshold vs Temperature
GUID-20210729-CA0I-W0HT-6R7G-Z4TDZFDBL0JG-low.png
VEN = 0.3 V
Figure 6-17 Smart Enable Pulldown Resistor vs Temperature and VIN
GUID-20210729-CA0I-TNHF-LJXT-5TP1JLGC1B0C-low.png
VEN = 1 V
Figure 6-19 VIN UVLO Threshold vs Temperature
GUID-20211209-SS0I-NQZP-TLGF-WRRLBTKNJRVV-low.jpg
VIN = 0 V to 4.3 V, slew rate = 1 V/μs, IOUT = 0 mA
Figure 6-21 Start-Up With VEN After VIN
GUID-20211209-SS0I-29TB-7ZCW-QWQGLRKN6GHN-low.jpg
VIN = 0 V to 4.3 V, slew rate = 1 V/μs, IOUT = 500 mA
 
Figure 6-23 Start-Up With VEN = VIN
GUID-20210809-SS0I-9LVH-MDXX-HXHTV0GPZSGZ-low.png
VIN = 4.3 V, VEN = 0 V to 4.3 V, slew rate = 1 V/μs,
IOUT = 0 mA, COUT = 10 μF
Figure 6-25 Start-Up Inrush Current
VEN = VIN, tr = tf = 5 μs, IOUT = 500 mA
Figure 6-27 Line Transient From 3.6 V to 4.6 V
VEN = VIN, tr = tf = 1 μs
Figure 6-29 Load Transient From 1 mA to 500 mA
VEN = VIN, tr = tf = 1 μs
Figure 6-31 Load Transient From 0 mA to 500 mA
GUID-20211122-SS0I-ZPTZ-SDD0-XJHK9GPPX5BZ-low.png
VEN = VIN
Figure 6-33 PSRR vs Frequency and IOUT
GUID-20211122-SS0I-M811-S9DD-MKC4G8ZPPCX8-low.png
VEN = VIN, IOUT = 500 mA
Figure 6-35 PSRR vs Frequency and VIN
GUID-20220728-SS0I-FMSS-ZJNH-Z9T525LCBPCH-low.png
VEN = VIN, IOUT = 500 mA
Figure 6-37 PSRR vs Frequency and COUT
VEN = VIN, IOUT = 500 mA
Figure 6-39 Noise vs Frequency and VIN
VEN = VIN, IOUT = 20 mA
Figure 6-41 Noise vs Frequency and COUT
GUID-20210729-CA0I-PBL0-S4DW-ZCHMMCTMQ2MV-low.png
VEN = 1 V
Figure 6-2 Output Voltage Accuracy vs IOUT
GUID-20211122-SS0I-DN4V-JHQT-NNLNLNP2HF4X-low.png
VEN = 1 V
Figure 6-4 Line Regulation vs VIN
VEN = 1 V
 
Figure 6-6 Dropout Voltage vs IOUT
GUID-20210729-CA0I-DRZ8-K056-K8BQK5R2BHFD-low.png
VEN = VIN
Figure 6-8 IQ vs VIN
GUID-20210729-CA0I-XHRL-2V4K-S9QFQSJRMTH7-low.png
VEN = 1 V
Figure 6-10 IGND vs IOUT
VEN = 0 V, IOUT = 0 mA
Figure 6-12 Shutdown Current vs VIN
VEN = 1 V
 
Figure 6-14 Foldback Current Limit
VEN = 6 V, IOUT = 0 mA
 
Figure 6-16 Enable Pin Leakage Current vs VEN – VIN
GUID-20220728-SS0I-F2RR-T2WD-0V1CXTC6DM2G-low.png
VEN = 0.3 V
Figure 6-18 Output Pulldown Resistance vs
Temperature and VIN
GUID-20211207-SS0I-RS0V-LX6C-5QFKMLZVQVKD-low.jpg
VIN = 0 V to 4.3 V, slew rate = 1 V/μs, IOUT = 500 mA
Figure 6-20 Start-Up With VEN Before VIN
GUID-20211209-SS0I-XLH0-9V9T-3FGLQFVFLD84-low.jpg
VIN = 0 V to 4.3 V, slew rate = 1 V/μs, IOUT = 500 mA
Figure 6-22 Start-Up With VEN After VIN
GUID-20210809-SS0I-0HFH-3PZM-8Q23PCLSBBZ3-low.png
VIN = 4.3 V, VEN = 0 V to 4.3 V, slew rate = 1 V/μs,
IOUT = 0 mA, COUT = 1 μF
Figure 6-24 Start-Up Inrush Current
GUID-20211122-SS0I-DRHZ-GL1K-8D432JWCH88G-low.png
VEN = VEN(HI) to VOUT = 95% of VOUT(NOM), IOUT = 0 mA
 
Figure 6-26 Start-Up Turn-On Time vs Temperature
VEN = VIN, tr = tf = 5 μs, IOUT = 1 mA
Figure 6-28 Line Transient From 3.6 V to 4.6 V
VEN = VIN, tr = tf = 200 ns
Figure 6-30 Load Transient From 1 mA to 500 mA
VEN = VIN, tr = tf = 200 ns
Figure 6-32 Load Transient From 0 mA to 500 mA
GUID-20211122-SS0I-LTZM-WRRC-6SNB5KC39HSB-low.png
VEN = VIN, IOUT = 20 mA
Figure 6-34 PSRR vs Frequency and VIN
GUID-20220728-SS0I-4M22-SC1S-BKHCHKVTKK5V-low.png
VEN = VIN, IOUT = 20 mA
Figure 6-36 PSRR vs Frequency and COUT
VEN = VIN, IOUT = 20 mA
Figure 6-38 Noise vs Frequency and VIN
GUID-20220809-SS0I-WDHH-1V6C-VPMCVBHC8W6C-low.png
VEN = VIN
Figure 6-40 Noise vs Frequency and IOUT
VEN = VIN, IOUT = 500 mA
Figure 6-42 Noise vs Frequency and COUT