SNVS358R July   2005  – June 2016 LP5900

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 Output and Input Capacitor, Recommended Specifications
    7. 6.7 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 No-Load Stability
      2. 7.3.2 Enable Control
      3. 7.3.3 Low Noise Output
      4. 7.3.4 Thermal-Overload Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with Enable Control
      2. 7.4.2 Operation with Minimum Operating Input Voltage (VIN)
  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 Power Dissipation
        2. 8.2.2.2 External Capacitors
          1. 8.2.2.2.1 Input Capacitor
          2. 8.2.2.2.2 Output Capacitor
          3. 8.2.2.2.3 Capacitor Characteristics
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 DSBGA Mounting
    4. 10.4 DSBGA Light Sensitivity
    5. 10.5 WSON Mounting
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • Input Voltage Range, 2.5 V to 5.5 V
  • Output Voltage Range, 1.5 V to 4.5 V
  • Stable with 0.47-μF Ceramic Input and Output Capacitors
  • No Noise Bypass Capacitor Required
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • −40°C to 125°C Junction Temperature Range for Operation
  • Output Current, 150 mA
  • Low Output Voltage Noise, 6.5 μVRMS
  • PSRR, 75 dB at 1 kHz
  • Output Voltage Tolerance, ±2%
  • Virturally Zero IQ (Disabled), < 1 µA
  • Very Low IQ (Enabled), 25 μA
  • Start-up Time, 150 μs
  • Low Dropout, 80 mV Typ.

2 Applications

  • Cellular Phones
  • PDA Handsets
  • Wireless LAN Devices

3 Description

The LP5900 is an LDO capable of supplying 150-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass capacitor.

The device is designed to work with 0.47-μF input and output ceramic capacitors (no bypass capacitor required).

The device is available in a DSBGA (YZR) package and a WSON package; the device is also available in an extremely thin DSBGA (YPF) package. For all voltage and package options available today, see the Package Option Addendum (POA) at the end of this data sheet. For any other fixed output voltages from 1.5 V to 4.5 V in 25-mV steps and all other package options, contact your local TI Sales office.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE
LP5900 DSBGA (4) 1.108 mm × 1.083 mm (MAX)
WSON (6) 2.50 mm × 2.20 mm (NOM)
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

LP5900 20144101.gif