SBVS188D March   2012  – May 2016


  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 Enable (EN)
      2. 7.3.2 Regulated Output (VOUT)
      3. 7.3.3 PG Delay Timer (DELAY)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Good
        1. Power-Good Delay and Delay Capacitor
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 TPS7A1601-Q1 Circuit as an Adjustable Regulator
        1. Design Requirements
        2. Detailed Design Procedure
          1. Adjustable Voltage Operation
            1. Resistor Selection
          2. Capacitor Recommendations
          3. Input and Output Capacitor Requirements
          4. Feed-Forward Capacitor (Only for Adjustable Version)
          5. Transient Response
        3. Application Curves
      2. 8.2.2 Automotive Applications
        1. Design Requirements
        2. Detailed Design Procedure
          1. Device Recommendations
        3. Application Curves
      3. 8.2.3 Multicell Battery Packs
        1. Design Requirements
        2. Detailed Design Procedure
        3. Application Curves
      4. 8.2.4 Battery-Operated Power Tools
        1. Design Requirements
        2. Detailed Design Procedure
        3. Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Additional Layout Considerations
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
    4. 10.4 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Related Links
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information



1 Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Wide Input Voltage Range: 3 V to 60 V
  • Ultralow Quiescent Current: 5 µA
  • Quiescent Current at Shutdown: 1 µA
  • Output Current: 100 mA
  • Low Dropout Voltage: 60 mV at 20 mA
  • Accuracy: 2%
  • Available in:
    • Fixed Output Voltage: 3.3 V, 5 V
    • Adjustable Version From Approximately 1.2 to 18.5 V
  • Power-Good With Programable Delay
  • Current-Limit and Thermal Shutdown Protections
  • Stable With Ceramic Output Capactors:
    ≥ 2.2 µF
  • Package: High-Thermal-Performance MSOP-8 PowerPAD™ Package

2 Applications

  • High Cell-Count Battery Packs for Power Tools and Other Battery-Powered Microprocessor and Microcontroller Systems
  • Car Audio, Navigation, Infotainment, and Other Automotive Systems
  • Power Supplies for Notebook PCs, Digital TVs, and Private LAN Systems
  • Smoke or CO2 Detectors and Battery-Powered Alarm or Security Systems

3 Description

The TPS7A16xx-Q1 ultralow-power, low-dropout (LDO) voltage regulators offer the benefits of ultralow quiescent current, high input voltage, and miniaturized, high-thermal-performance packaging.

The TPS7A16xx-Q1 devices are designed for continuous or sporadic (power backup) battery-powered applications where ultralow quiescent current is critical to extending system battery life.

The TPS7A16xx-Q1 devices offer an enable pin (EN) compatible with standard CMOS logic and an integrated open-drain active-high power-good output (PG) with a user-programmable delay. These pins are intended for use in microcontroller-based, battery-powered applications where power-rail sequencing is required.

In addition, the TPS7A16xx-Q1 devices are ideal for generating a low-voltage supply from multicell solutions ranging from high-cell-count power-tool packs to automotive applications; not only can these devices supply a well-regulated voltage rail, but they can also withstand and maintain regulation during voltage transients. These features translate to simpler and more cost-effective, electrical surge-protection circuitry.

Device Information(1)

TPS7A1601-Q1 HVSSOP (8) 3.00 mm x 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application Schematic

TPS7A1601-Q1 TPS7A1633-Q1 TPS7A1650-Q1 FP_typ_app_bvs188.gif

4 Revision History

Changes from C Revision (August 2014) to D Revision

  • Changed data sheet title Go
  • Changed pinout drawingGo
  • Changed Handling Ratings table to ESD Ratings; moved storage temperature to Absolute Maximum Ratings Go
  • Changed maximum EN pin voltage and added a row for EN slew rateGo
  • Changed UNIT for accuracy on VOUT Go
  • Changed Ground current to Quiescent currentGo
  • Changed Figure 2Go
  • Changed caption of Figure 3Go
  • Changed and added text in Enable (EN)Go
  • Moved three paragraphs of text from Layout Example to Layout GuidelinesGo

Changes from B Revision (May 2012) to C Revision

  • Added Handling Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from A Revision (March 2012) to B Revision

  • Changed to AEC-Q100 Qualified With the Following ResultsGo