SBVS439 April   2024 TPS7B91

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Wide Supply Range
      2. 6.3.2 Low Quiescent Current
      3. 6.3.3 Dropout Voltage (VDO)
      4. 6.3.4 Current Limit
      5. 6.3.5 Leakage Null Control Circuit
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
  8. Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Setting VOUT for the TPS7B9101 Adjustable LDO
        2. 7.2.2.2 External Capacitor Requirements
        3. 7.2.2.3 Input and Output Capacitor Requirements
        4. 7.2.2.4 Reverse Current
        5. 7.2.2.5 Feed-Forward Capacitor (CFF)
        6. 7.2.2.6 Power Dissipation (PD)
        7. 7.2.2.7 Estimating Junction Temperature
      3. 7.2.3 Application Curves
    3. 7.3 Best Design Practices
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
        1. 7.5.1.1 Power Dissipation
      2. 7.5.2 Layout Example
  9. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Evaluation Module
        2. 8.1.1.2 Spice Models
      2. 8.1.2 Device Nomenclature
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

at operating junction temperature TJ = 25°C, VIN = 2.5V or VIN = VOUT(nom) + 0.5V (whichever is greater), CIN = 1µF, COUT = 1µF, and IOUT = 1mA (unless otherwise noted)

GUID-20240312-SS0I-MRZK-KGGG-S7CKBGMGBRKP-low.svg
VOUT = 5.0V, IOUT = 10mA
Figure 5-1 VOUT vs VIN
GUID-20240312-SS0I-TD5N-MZDJ-0VWQS5CFXKS5-low.svg
VOUT = 5.0V, IOUT = 150mA
Figure 5-3 VOUT vs VIN
GUID-20240312-SS0I-KDBZ-6PTQ-FF3LX7Z3WRX0-low.svg
VIN = 7.0V, VOUT = 5.0V
Figure 5-5 VOUT vs IOUT
GUID-20240312-SS0I-R1B1-NBM3-79QQG3MX1GXM-low.svg
VIN = 5.5V, VOUT = 5.0V
Figure 5-7 VOUT Accuracy vs IOUT
GUID-20240312-SS0I-ZPPQ-V6KV-PNWVT6J6MJWC-low.svg
For adjustable configuration
Figure 5-9 IGND vs Temperature
GUID-20240312-SS0I-CDMS-NJDJ-RNLQB6BFWLKN-low.svg
VOUT = 5.0V, IOUT = 0mA
Figure 5-11 IGND vs VIN
GUID-20240312-SS0I-F3ZC-W8BD-GHF0TTFDQKPK-low.svg
VOUT = 5.0V, IOUT = 0mA
Figure 5-13 IGND vs VIN (Dropout Operation)
GUID-20240323-SS0I-Z3ZD-5RMM-1JX6VBWMX9H5-low.svg
VOUT = 5.0V
Figure 5-15 Dropout vs IOUT
GUID-20240312-SS0I-MJGT-M84T-NKLXSS4MMBSH-low.svg
For adjustable configuration, IOUT = 150mA
Figure 5-17 Dropout vs VIN
GUID-20240323-SS0I-3C6T-LMWZ-HXR2J0GMDQDL-low.svg
VOUT = 5.0V
Figure 5-19 Current Limit vs VIN
GUID-20240312-SS0I-JFLS-CBW2-VHHZDMP1FFWG-low.svg
VIN = 5.5V, VOUT = 5.0V
Figure 5-21 Start-Up Time vs Temperature
GUID-20240223-SS0I-Z7PT-GHFS-GJTNFH95H79C-low.svg
VOUT = 5.0V, IOUT = 150mA, dVIN/dt = 1V/μs
Figure 5-23 VIN Line Transient (7V to 10V)
GUID-20240223-SS0I-QTQ4-6KZ2-HCN7V6GKZMCD-low.svg
VOUT = 5.0V, IOUT = 150mA, dVIN/dt = 1V/μs
Figure 5-25 VIN Line Transient (7V to 40V)
GUID-20240223-SS0I-700V-HPLX-ZS36SDB3LJNH-low.svg
VOUT = 5.0V, IOUT = 1mA, dVIN/dt = 1V/μs
Figure 5-27 VIN Line Transient (8.8V to 40V)
GUID-20240223-SS0I-SZQQ-RZMG-MCW4RTZX1NDW-low.svg
VIN = 7.0V, VOUT = 5.0V, dIOUT/dt = 1A/μs
Figure 5-29 Load Transient (1mA to 150mA)
GUID-20240223-SS0I-80RC-XQW2-PCLHJZ1QVPWJ-low.svg
VOUT = 5.0V, IOUT = 1mA, dVIN/dt = 1V/μs
Figure 5-31 Brownout Transient (40V to 2.1V)
GUID-20240223-SS0I-9R86-7FMD-JQPSMLTQN1NK-low.svg
VIN = 5.5V, VOUT = 5.0V
Figure 5-33 Inrush Current vs Output Capacitor
GUID-20240317-SS0I-CPZ2-XS3D-Z5SXPZ3SDXRS-low.svg
VOUT = 5.0V, COUT = 1μF, IOUT = 50mA
Figure 5-35 PSRR vs Input Supply
GUID-20240317-SS0I-BQLW-PSFM-Q62DBKJ5M5V6-low.svg
VIN = 7.0V, VOUT = 5.0V, IOUT = 50mA, COUT = 1μF
Figure 5-37 PSRR vs Feed-Forward Capacitor
GUID-20240223-SS0I-MBCL-X0H8-SLVGQFWQV40R-low.svg
VOUT = 5.0V, IOUT = 50mA, COUT = 1μF
Figure 5-39 Noise vs Input Supply
GUID-20240223-SS0I-0T4J-PHN6-ZRWK4PPS0X9K-low.svg
VIN = 7.0V, VOUT = 5.0V, IOUT = 50mA, COUT = 1μF
Figure 5-41 Noise vs Feed-Forward Capacitor
GUID-20240312-SS0I-8HSL-Z2GF-HZPQJZC0STCF-low.svg
VOUT = 5.0V, IOUT = 50mA
Figure 5-2 VOUT vs VIN
GUID-20240312-SS0I-CQQ5-Z6XJ-WC9L5L2WJ91K-low.svg
VIN = 5.5V, VOUT = 5.0V
Figure 5-4 VOUT vs IOUT
GUID-20240312-SS0I-MKVZ-TCBV-67NNC9FVCKQ3-low.svg
VOUT = 5.0V, IOUT = 1.0mA
Figure 5-6 VOUT Accuracy vs VIN
GUID-20240312-SS0I-VH3D-0Q3H-7GMLGTL4JHP2-low.svg
VIN = 7.0V, VOUT = 5.0V
Figure 5-8 VOUT Accuracy vs IOUT
GUID-20240323-SS0I-JCCD-J4VN-H9ZZ8CZM9BGH-low.svg
VIN = 8.8V, VOUT = 5.0V
Figure 5-10 IGND vs IOUT
GUID-20240312-SS0I-X6LP-0LGN-JN5G2BRDDHPS-low.svg
VOUT = 5.0V, IOUT = 50mA
Figure 5-12 IGND vs VIN
GUID-20240323-SS0I-0XV8-FZX5-SJNKMMXF8L5D-low.svg
VOUT = 5.0V
Figure 5-14 Dropout vs Temperature
GUID-20240312-SS0I-TNFQ-2G3C-586PPLHKSV3B-low.svg
For adjustable configuration, IOUT = 50mA
Figure 5-16 Dropout vs VIN
GUID-20240323-SS0I-Z0NZ-JJ6R-HK7LNDGSQDBR-low.svg
VIN = 9.0V
Figure 5-18 Current Limit vs VOUT
GUID-20240323-SS0I-LVW0-2MKL-DL77JNBPPHVK-low.svg
VOUT = 5.0V
Figure 5-20 Short-Current Limit vs VIN
GUID-20240312-SS0I-V3JH-ZH5F-KP8BMKJ942CF-low.svg
 
Figure 5-22 UVLO Thresholds vs Temperature
GUID-20240223-SS0I-SCRW-DLL2-GTVZWSM2XDHB-low.svg
VOUT = 5.0V, IOUT = 1mA, dVIN/dt = 1V/μs
Figure 5-24 VIN Line Transient (7V to 40V)
GUID-20240223-SS0I-WQ3N-V5V3-JJKPNBD54RW0-low.svg
VOUT = 5.0V, IOUT = 1mA, dVIN/dt = 1V/μs
Figure 5-26 VIN Line Transient (8.8V to 10V)
GUID-20240223-SS0I-VRWW-R4LQ-PVQXLRS2WFWV-low.svg
VIN = 7.0V, VOUT = 5.0V, dIOUT/dt = 0.1A/μs
Figure 5-28 Load Transient (1mA to 150mA)
GUID-20240223-SS0I-85M4-WB5J-PKSKFK4ZQHJT-low.svg
VOUT = 5.0V, IOUT = 1mA, dVIN/dt = 1V/μs
Figure 5-30 Brownout Transient (40V to 1.7V)
GUID-20240223-SS0I-LWFQ-GQ0F-F8CX1ZMPBM9K-low.svg
VIN = 5.5V, VOUT = 5.0V, ROUT = 5kΩ
Figure 5-32 Start-Up
GUID-20240317-SS0I-W3LQ-63QR-3D81KZ93KB9C-low.svg
VOUT = 5.0V, COUT = 1μF, VIN = 7V
Figure 5-34 PSRR vs Load Current
GUID-20240317-SS0I-2FP3-6FK4-RKLB4GMGTNP9-low.svg
VIN = 7.0V, VOUT = 5.0V, IOUT = 50mA
Figure 5-36 PSRR vs Output Capacitor
GUID-20240223-SS0I-T6HX-9MWD-92GSLQW4L7TN-low.svg
VIN = 7.0V, VOUT = 5.0V, COUT = 1μF
Figure 5-38 Noise vs Load Current
GUID-20240223-SS0I-QTPW-XVLL-SP4BPLSLQ3MB-low.svg
VIN = 7.0V, VOUT = 5.0V, IOUT = 50mA
Figure 5-40 Noise vs Output Capacitor