SLVS338R May   2001  – April 2015 TPS715

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 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Wide Supply Range
      2. 7.3.2 Low Supply Current
      3. 7.3.3 Stable With Any Capacitor ≥ 0.47 µF
      4. 7.3.4 Internal Current Limit
      5. 7.3.5 Reverse Current
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Power the MSP430 Microcontroller
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 External Capacitor Requirements
        2. 8.2.2.2 Dropout Voltage (VDO)
        3. 8.2.2.3 Setting VOUT for the TPS71501 Adjustable LDO
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    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. 11.1.1.2 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

Package Options

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

1 Features

  • 24-V Maximum Input Voltage
  • Low 3.2-μA Quiescent Current at 50 mA
  • Stable With Any Capacitor ≥ 0.47 μF
  • 50-mA Low-Dropout Regulator
  • Available in 1.8 V, 1.9 V, 2.3 V, 2.5 V, 3 V,
    3.3 V, 3.45 V, 5 V, and
    Adjustable (1.2 V to 15 V)
  • Designed to Support MSP430 Families:
    • 1.9-V Version Ensured to be Higher Than Minimum VIN of 1.8 V
    • 2.3-V Version Ensured to Meet 2.2-V Minimum VIN for Flash on MSP430F2xx
    • 3.45-V Version Ensured to be Lower Than Maximum VIN of 3.6 V
    • Wide Variety of Fixed-Output Voltage Options to Match VIN to the Minimum Required for Desired MSP430 Speed
  • Minimum and Maximum Specified Current Limit
  • 5-Pin SC70 (DCK)
  • –40°C to +125°C Specified Junction
    Temperature Range
  • For 80-mA Rated Current and Higher Power Package, see TPS715A

2 Applications

  • Ultralow Power Microcontrollers
  • Cellular and Cordless Handsets
  • Portable and Battery-Powered Equipment

3 Description

The TPS715 low-dropout (LDO) voltage regulators offer the benefits of high input voltage, low-dropout voltage, low-power operation, and miniaturized packaging. The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor greater than or equal to 0.47 μF. The low dropout voltage and low quiescent current allow operation at extremely low power levels. Therefore, the devices are ideal for powering battery management ICs. Specifically, because the devices are enabled as soon as the applied voltage reaches the minimum input voltage, the output is quickly available to power continuously operating battery charging ICs.

The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the low dropout voltage, typically 415 mV at 50 mA of load current, is directly proportional to the load current. The low quiescent current (3.2 µA typically) is stable over the entire range of output load current (0 mA to 50 mA).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS715 SC70 (5) 2.00 mm × 1.25 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS715 po_fbd_lvs338.gif