SBVS068I February   2006  – January 2016 TPS717

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Startup and Noise Reduction Capacitor
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Minimum Load
      6. 7.3.6 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Transient Response
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Dropout Voltage
      4. 8.1.4 Output Noise
    2. 8.2 Typical Applications
      1. 8.2.1 Application for Fixed Voltage Versions and Adjustable Voltage Version
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Powering a PLL Integrated on an SOC
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
    2. 10.2 Layout Examples
    3. 10.3 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Module
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Community 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

1 Features

  • Input Voltage: 2.5 V to 6.5 V
  • Available in Multiple Output Versions:
    • Fixed Output with Voltages from 0.9 V to 5 V
    • Adjustable Output Voltage from 0.9 V to 6.2 V
  • Ultra-High PSRR:
    • 70 dB at 1 kHz, 67 dB at 100 kHz, and
      45 dB at 1 MHz
  • Excellent Load and Line Transient Response
  • Very Low Dropout: 170 mV typical at 150 mA
  • Low Noise: 30 μVRMS typical (100 Hz to 100 kHz)
  • Small 5-pin SC-70, 2-mm × 2-mm WSON-6, and 1.5-mm × 1.5-mm WSON-6 Packages

2 Applications

  • Camera Sensor Power
  • Mobile Phone Handsets
  • PDAs and Smartphones
  • Wireless LAN, Bluetooth®

3 Description

The TPS717 family of low-dropout (LDO), low-power linear regulators offers very high power-supply rejection (PSRR) while maintaining very low 45-μA ground current in an ultra-small, five-pin SOT package. The family uses an advanced BiCMOS process and a PMOS pass device to achieve fast start-up, very low noise, excellent transient response, and excellent PSRR performance. The TPS717 is stable with a 1-μF ceramic output capacitor and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations. The device family is fully specified from TJ = –40°C to 125°C and is offered in a small SOT (SC70-5) package, a
2-mm × 2-mm WSON-6 package with a thermal pad, and a 1.5-mm × 1.5-mm WSON-6 package, which are ideal for small form factor portable equipment (such as wireless handsets and PDAs).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS717 SC70 (5) 2.00 mm × 1.25 mm
WSON (6) 2.00 mm × 2.00 mm
WSON (6) 1.50 mm × 1.50 mm
  1. For all available package and voltage options, see the orderable addendum at the end of the datasheet.

Typical Application Circuit for Fixed-Voltage Versions

TPS717 front_fbd_sbvs068.gif

PSRR vs Frequency

TPS717 front_tc_sbvs068.gif