SBVS083E January   2007  – January 2015 TPS780

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 Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Active VOUT Pulldown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
    5. 7.5 Programming
      1. 7.5.1 Programming the TPS78001 Adjustable LDO Regulator
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input and Output Capacitor Requirements
        2. 8.2.2.2 Dropout Voltage
        3. 8.2.2.3 Transient Response
        4. 8.2.2.4 Minimum Load
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
    1. 9.1 Powering the MSP430 Microcontroller
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
      2. 10.1.2 Package Mounting
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
    4. 10.4 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Modules
        2. 11.1.1.2 Spice Models
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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1 Features

  • Low IQ: 500 nA
  • 150-mA, Low-Dropout Regulator With Pin-Selectable Dual Voltage Level Output
  • Low Dropout: 200 mV at 150 mA
  • 3% Accuracy Over Load, Line, and Temperature
  • Available in Dual-Level, Fixed-Output Voltages From 1.5 V to 4.2 V
  • Available in an Adjustable Version from 1.22 V to 5.25 V or a Dual-Level Output Version
  • VSET Pin Toggles Output Voltage Between Two Factory-Programmed Voltage Levels
  • Stable with a 1.0-μF Ceramic Capacitor
  • Thermal Shutdown and Overcurrent Protection
  • CMOS Logic Level-Compatible Enable Pin
  • Available in DDC (TSOT23-5) or DRV (2-mm ×
    2-mm SON-6) Package Options

2 Applications

  • TI MSP430™ Attach Applications
  • Power Rails With Programming Mode
  • Dual Voltage Levels for Power-Saving Mode
  • Wireless Handsets, Smart Phones, PDAs, MP3 Players, and Other Battery-Operated Handheld Products

3 Description

The TPS780 family of low-dropout (LDO) regulators offer the benefits of ultralow power, miniaturized packaging, and selectable dual-level output voltage levels with the VSET pin.

The ultralow-power and dynamic voltage scaling (DVS) capability which provides dual-level output voltages let designers customize power consumption for specific applications. Designers can now shift to a lower voltage level in a battery-powered design when the microprocessor is in sleep mode, further reducing overall system power consumption. The two voltage levels are preset at the factory and are stored using EPROM and are available on fixed output voltage devices.

The TPS780 series of LDOs are designed to be compatible with the TI MSP430 and other similar products. The enable pin is compatible with standard CMOS logic. The TPS780 series also come with thermal shutdown and current limit to protect the device during fault conditions. All packages have an operating temperature range of TJ = –40°C to 125°C. For more cost-sensitive applications requiring a dual-level voltage option and only on par IQ, consider the TPS781 series, with an IQ of 1.0 μA and dynamic voltage scaling.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS780xx SOT (5) 2.90 mm x 1.60 mm
SON (6) 2.00 mm x 2.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

ai_typ_cir_bvs083.gif