SBVS338E March   2020  – December 2021 TPS7A20

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 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Low Output Noise
      2. 7.3.2 Smart Enable
      3. 7.3.3 Dropout Voltage
      4. 7.3.4 Foldback Current Limit
      5. 7.3.5 Undervoltage Lockout (UVLO)
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Active Discharge
    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. Application 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)
        1. 8.1.5.1 Estimating Junction Temperature
        2. 8.1.5.2 Recommended Area for Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

VIN = VOUT(NOM) + 0.3 V or 1.6 V (whichever is greater), VOUT = 2.8 V, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, and TA = 25°C (unless otherwise noted)

GUID-20200812-CA0I-BDFG-JKRH-VB7PFZ39HXGF-low.gif
VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-1 Line Regulation vs VIN
GUID-20201105-CA0I-N3FT-K6GV-BRCPJZVBJDVR-low.gif
VEN = 1 V, DBV package
Figure 6-3 Line Regulation vs VIN
GUID-20200812-CA0I-07RJ-N9MV-KGCKTBCG99MS-low.gif
VIN = 3.1 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-5 Load Regulation vs IOUT
GUID-20201105-CA0I-DCFD-NBKP-PN3BRHWJVMKN-low.gif
VIN = 2.8 V, VEN = 1 V, DBV package
Figure 6-7 Load Regulation vs IOUT
GUID-20200812-CA0I-0WGW-CS9X-8XZQSLWVMBFX-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-9 Load Regulation vs IOUT
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-11 Load Regulation vs IOUT
GUID-20200812-CA0I-VTJ3-GTQQ-WHJ07PGQQ1XW-low.gif
VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-13 Output Voltage Accuracy vs IOUT
VEN = 1 V, DBV package
Figure 6-15 Output Voltage Accuracy vs IOUT
GUID-20200812-CA0I-K7KF-J4Z9-JBB0X6LQCKWL-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-17 Output Voltage Accuracy vs IOUT
GUID-20201105-CA0I-QMJP-XKMX-XPLVSLDKW912-low.gif
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-19 Output Voltage Accuracy vs IOUT
GUID-20200812-CA0I-ZXPW-J5HG-WJFNPJ53ZSJB-low.gif
VEN = 1 V, IOUT = 1 mA, DQN, YCJ, and YCK packages
Figure 6-21 Output Voltage Accuracy vs VIN
GUID-20201106-CA0I-GMJF-FBZK-7XHC8V3RDGXF-low.gif
VEN = 1 V, IOUT = 1 mA, DBV package
Figure 6-23 Output Voltage Accuracy vs VIN
GUID-20200812-CA0I-JXBC-CJJ9-3ZF5LQ2JFHXF-low.gif
VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-25 Dropout Voltage vs IOUT
GUID-20201106-CA0I-X7RS-PF4H-XDX2FCPRN1LN-low.gif
VEN = 1 V, DBV package
Figure 6-27 Dropout Voltage vs IOUT
GUID-20200812-CA0I-TFTQ-JX5D-HWBGBSGHJJKH-low.gif
VOUT = 1.8 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-29 Dropout Voltage vs IOUT
VOUT = 1.8 V, VEN = 1 V, DBV package
Figure 6-31 Dropout Voltage vs IOUT
GUID-20200812-CA0I-WPRH-DBRH-5LKV0VBGWLDR-low.gif
IOUT = 300 mA
Figure 6-33 Dropout Voltage vs VOUT
GUID-20200812-CA0I-SJVJ-3T7Z-B4RMC3R3ZNTP-low.gif
VEN = VIN, IOUT = 0 mA
Figure 6-35 IGND vs VIN
GUID-20200812-CA0I-XWRH-BRZF-LHVF6GD2FZMK-low.gif
VOUT(NOM) = 5.5 V, VEN = VIN, IOUT = 0 mA
Figure 6-37 IGND vs VIN in the Dropout Region
GUID-20200812-CA0I-73N3-58WJ-9MPGF2RTXSCJ-low.gif
VEN = 1 V
Figure 6-39 IGND vs IOUT
GUID-20200812-CA0I-ZZDK-FV1B-BDXLCLJPRXC5-low.gif
VEN = 0 V
Figure 6-41 Shutdown Current vs VIN
GUID-20200812-CA0I-7HGM-T67G-V5BFPPKMKQNZ-low.gif
VEN = 6 V, IOUT = 0 mA
Figure 6-43 Enable Pin Leakage Current vs
VEN - VIN
GUID-20200814-CA0I-C2BG-QX0X-WG4QTQK71M0P-low.gif
VOUT = 0.8 V, VEN = 1 V
Figure 6-45 Current Limit
GUID-20200825-CA0I-WKWR-WHL7-5K1MVKWZF2PM-low.gifFigure 6-47 Enable Logic High Threshold vs Temperature
GUID-20200812-CA0I-0J2V-FXJZ-WQPJKRDBRDLD-low.gif
VEN = 0.25 V
Figure 6-49 Output Pulldown Resistor vs Temperature
GUID-20200812-CA0I-LBZR-GLGF-RDTRK3LQQ42N-low.gif
IOUT = 1 mA to 300 mA, tRISING = 1 µs
Figure 6-51 Load Transient
GUID-20200813-CA0I-V0XL-L0GX-LLNKF1WGSC8S-low.gif
IOUT = 1 mA to 300 mA, tRISING = 200 ns
Figure 6-53 Load Transient
GUID-20200813-CA0I-SCDH-SPNM-F7HVX6PKVXLR-low.gif
IOUT = 0 mA to 300 mA, tRISING = 1 µs
Figure 6-55 Load Transient
GUID-20200813-CA0I-CMRQ-JZ2X-MZTG0RRHMNJP-low.gif
IOUT = 0 mA to 300 mA, tRISING = 200 ns
Figure 6-57 Load Transient
GUID-20200817-CA0I-NWXP-BHSV-GC3PWLTGXG4S-low.gif
VIN = 3.1 V → 4.1 V → 3.1 V, VIN tRISING = 5 µs, IOUT = 1 mA
 
Figure 6-59 Line Transient
GUID-20200813-CA0I-7WLH-SLDN-0QHPSHW9CKMQ-low.gif
IOUT = 20 mA
Figure 6-61 PSRR vs VIN vs Frequency and VIN
GUID-20200813-CA0I-KWFF-SXP7-5JMB8C4SB6V8-low.gif
 
Figure 6-63 PSRR vs Frequency and IOUT
GUID-20200820-CA0I-NQQS-LNQQ-RTKX2ZCN88ZT-low.gif
VRMS BW = 10 Hz to 100 kHz
Figure 6-65 Noise vs Frequency and IOUT
GUID-20200817-CA0I-H6BP-1P30-WQ37K35RKWMR-low.gif
IOUT = 300 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-67 Noise vs Frequency and VIN
GUID-20200812-CA0I-VWLC-ZSFR-1HGXZNG5M3FS-low.gif
VIN = 3.8 V, IOUT = 300 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-69 Noise vs Frequency and COUT
GUID-20200812-CA0I-38GS-9JZQ-JSFK7RDVNWFJ-low.gif
VOUT = 0.8 V, VIN = 1.8 V, VRMS BW = 10 Hz to 100 kHz
Figure 6-71 Noise vs Frequency and IOUT
GUID-20200812-CA0I-TCT5-NPBW-0MPFQ2TMJKDR-low.gif
From VEN = VEN(HI) to VOUT = 95% of VOUT(NOM), IOUT = 0 mA
 
Figure 6-73 Start-Up Turn-On Time
GUID-20200902-CA0I-SG57-T6P1-SNZD1H7GSBLN-low.gif
VOUT = 0.8 V, VIN = 0 V to 1.8 V, VEN = 0 V to 1.8 V, VEN rises 500 µs ahead of VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-75 Start-Up
GUID-20200902-CA0I-9K1V-G5L7-QJ8N9CXQZXFJ-low.gif
VIN = 0 V to 3.8 V, VEN = 0 V to 3.8 V, VEN rises 500 µs behind VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-77 Start-Up
GUID-20200902-CA0I-RRXP-X1WR-F5XLMNLCMG6F-low.gif
VIN = 0 V to 3.8 V, VEN = 0 V to 3.8 V, VEN = VIN, VIN and slew rate = 1 V/µs
Figure 6-79 Start-Up
GUID-20200902-CA0I-JRQ6-RMG3-MQCVNLCXCZ6F-low.gif
VOUT = 5.5 V, VIN = 0 V to 6.0 V, VEN = 0 V to 6.0 V, VEN rises 500 µs ahead of VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-81 Start-Up
GUID-20200817-CA0I-FT9N-WKFD-RGM9BKR2FBS4-low.gif
VOUT = 0.8 V, VIN = 1.8 V, VEN = 0 V to 1.8 V,
VEN slew rate = 1 V/µs, COUT = 10 µF
Figure 6-83 Inrush Current
GUID-20200817-CA0I-JH0M-MKPG-QSX8NQ9WDGBD-low.gif
VOUT = 5.5 V, VIN = 6.0 V, VEN = 0 V to 6.0 V,
VEN slew rate = 1 V/µs, COUT = 10 µF
Figure 6-85 Inrush Current
GUID-20200812-CA0I-CJVJ-FLZJ-NCB77K5371TH-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-2 Line Regulation vs VIN
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-4 Line Regulation vs VIN
GUID-20200812-CA0I-PZ03-FQMV-BPDLW946S7SF-low.gif
VIN = 3.1 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-6 Load Regulation vs IOUT
VIN = 2.8 V, VEN = 1 V, DBV package
Figure 6-8 Load Regulation vs IOUT
GUID-20200813-CA0I-FPZ3-7KFR-GXXRNZL0L0GQ-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-10 Load Regulation vs IOUT
GUID-20201105-CA0I-RR6Z-LN8P-W4FFQH2WCXHT-low.gif
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-12 Load Regulation vs IOUT
GUID-20200812-CA0I-7MRM-QRN3-GP1CWZJCQSLW-low.gif
VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-14 Output Voltage Accuracy vs IOUT
VEN = 1 V, DBV package
Figure 6-16 Output Voltage Accuracy vs IOUT
GUID-20200812-CA0I-L3B2-7TSK-SHFS3MZWGSJL-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-18 Output Voltage Accuracy vs IOUT
GUID-20201105-CA0I-8DP4-SW3M-2KQQPQRVBQHZ-low.gif
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-20 Output Voltage Accuracy vs IOUT
GUID-20200812-CA0I-JF6K-Z0ZH-NMN3RNFBLG4R-low.gif
VOUT = 5.5 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-22 Output Voltage Accuracy vs VIN
GUID-20201106-CA0I-HSDQ-MXFJ-BNCWGFBPWNPX-low.gif
VOUT = 5.5 V, VEN = 1 V, DBV package
Figure 6-24 Output Voltage Accuracy vs VIN
GUID-20200812-CA0I-TV81-4VVS-FDGFFZC5NRR1-low.gif
VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-26 Dropout Voltage vs IOUT
VEN = 1 V, DBV package
Figure 6-28 Dropout Voltage vs IOUT
GUID-20200812-CA0I-RTG4-WNB5-NZMBPFTCXSF3-low.gif
VOUT = 1.8 V, VEN = 1 V, DQN, YCJ, and YCK packages
Figure 6-30 Dropout Voltage vs IOUT
VOUT = 1.8 V, VEN = 1 V, DBV package
Figure 6-32 Dropout Voltage vs IOUT
GUID-20200812-CA0I-6HTN-WJP6-Q1MNTNZVTS7K-low.gif
VEN = 1 V, IOUT = 0 mA
Figure 6-34 I GND vs VIN
GUID-20200812-CA0I-RNKF-DXWW-S5PGTJ0LD2JF-low.gif
VOUT(NOM) = 5.5 V, VEN = 1 V, IOUT = 0 mA
Figure 6-36 IGND vs VIN in the Dropout Region
GUID-20200812-CA0I-BJX6-HJHN-TRJKDTH6B8XZ-low.gif
VEN = 1 V
Figure 6-38 IGND vs IOUT
GUID-20200812-CA0I-VRGT-1SVC-1LS463TH1C2P-low.gif
VEN = 1 V
Figure 6-40 IGND vs IOUT
GUID-20200812-CA0I-VVMD-XMCF-TRMKJ7HF5FSS-low.gif
VEN = 0 V
Figure 6-42 Shutdown Current vs VIN
GUID-20200812-CA0I-7C8G-RXTD-S0ZCBR2GG4M8-low.gif
VEN = 1 V
Figure 6-44 Current Limit
GUID-20200812-CA0I-D9DF-WFRQ-4G4FVT0THC2B-low.gif
VEN = 1 V
Figure 6-46 UVLO Threshold vs Temperature
GUID-20200825-CA0I-JDL7-V1WD-NTZJBHPSGNQW-low.gifFigure 6-48 Enable Logic Low Threshold Low vs Temperature
GUID-20200812-CA0I-MCQG-PPWN-QTHSDMZKDJM4-low.gif
VEN = 0.25 V
Figure 6-50 Smart Enable Pulldown Resistor vs Temperature and VIN
GUID-20200813-CA0I-C5KR-1CXT-6SPRGMNTR94F-low.gif
IOUT = 300 mA to 1 mA, tFALLING = 1 µs
Figure 6-52 Load Transient
GUID-20200812-CA0I-NW6J-Q2ST-FCCKSTP0HPMP-low.gif
IOUT = 300 mA to 1 mA, tFALLING = 200 ns
Figure 6-54 Load Transient
GUID-20200813-CA0I-DSGS-F8BP-C7P0RKX0TQVG-low.gif
IOUT = 300 mA to 0 mA, tFALLING = 1 µs
Figure 6-56 Load Transient
GUID-20200813-CA0I-64BJ-TJS4-FZWWLJVBJ9CW-low.gif
IOUT = 300 mA to 0 mA, tFALLING = 200 ns
Figure 6-58 Load Transient
GUID-20200817-CA0I-P0LD-STVN-4012VMTSG5CK-low.gif
VIN = 3.1 V → 4.1 V → 3.1 V, VIN tRISING = 5 µs,
IOUT = 300 mA
Figure 6-60 Line Transient
GUID-20200818-CA0I-CF3R-TFGG-N3FLHHGHDQFB-low.gif
IOUT = 300 mA
Figure 6-62 PSRR vs Frequency and VIN
GUID-20200813-CA0I-GZP2-ZV7F-PR2QZ7RBB4LF-low.gif
IOUT = 20 mA
Figure 6-64 PSRR vs Frequency and COUT
GUID-20200817-CA0I-R4ZV-WZL2-SSWCFXTTKT1Z-low.gif
IOUT = 20 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-66 Noise vs Frequency and VIN
GUID-20200812-CA0I-SW9C-D1P0-CD4DQ2CMC7GQ-low.gif
VIN = 3.8 V, IOUT = 20 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-68 Noise vs Frequency and COUT
GUID-20200812-CA0I-J1KQ-LWCP-9QMJMWG5730P-low.gif
VOUT = 0.8 V, VRMS BW = 10 Hz to 100 kHz
Figure 6-70 Noise vs Frequency and IOUT
GUID-20200812-CA0I-352B-JVZH-WSL4XJJFMMK2-low.gif
VOUT = 5.5 V, VIN = 6 V, VRMS BW = 10 Hz to 100 kHz
Figure 6-72 Noise vs Frequency and IOUT
GUID-20200830-CA0I-JZRK-QPXC-Z9QQH7ZCFTXT-low.gif
VOUT = 0.8 V, VIN = 0 V to 1.8 V, VEN = 0 V to 1.8 V, VEN rises 500 µs behind VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-74 Start-Up
GUID-20200902-CA0I-KXWX-KTGJ-RZ4R54QBRSWX-low.gif
VOUT = 0.8 V, VIN = 0 V to 1.8 V, VEN = VIN,
VIN slew rate = 1 V/µs
Figure 6-76 Start-Up
GUID-20200902-CA0I-CP2Q-BSP3-0PQX8PCNGB6R-low.gif
VIN = 0 V to 3.8 V, VEN = 0 V to 3.8 V, VEN rises 500 µs ahead of VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-78 Start-Up
GUID-20200902-CA0I-TCNG-ST6N-ZMQJZX0CMMC4-low.gif
VOUT = 5.5 V, VIN = 0 V to 6.0 V, VEN = 0 V to 6.0 V, VEN rises 500 µs behind VIN, VIN and VEN slew rate = 1 V/µs
Figure 6-80 Start-Up
GUID-20200902-CA0I-PMFW-GTNJ-JTM2JJPJ49LJ-low.gif
VOUT = 5.5 V, VIN = 0 V to 6 V, VEN = VIN, VIN slew rate = 1 V/µs
Figure 6-82 Start-Up
GUID-20200817-CA0I-4FRK-XCCS-FBMH58HZ2NJ1-low.gif
VIN = 3.8 V, VEN = 0 V to 3.8 V, VEN slew rate = 1 V/µs,
COUT = 10 µF
Figure 6-84 Inrush Current