SNOS510Q November   1999  – October 2016 LP2985LV-N

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 Multiple Voltage Options
      2. 7.3.2 Output Voltage Accuracy
      3. 7.3.3 Ultra-Low-Dropout Voltage
      4. 7.3.4 Low Ground Current
      5. 7.3.5 Sleep Mode
      6. 7.3.6 Internal Protection Circuitry
        1. 7.3.6.1 Short Circuit Protection (Current Limit)
        2. 7.3.6.2 Thermal Protection
      7. 7.3.7 Enhanced Stability
      8. 7.3.8 Low Noise
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VOUT(TARGET) + 0.6 V ≥ VIN > 16 V
      2. 7.4.2 Operation With ON/OFF Control
  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 External Capacitors
          1. 8.2.2.1.1 Input Capacitor
          2. 8.2.2.1.2 Output Capacitor
          3. 8.2.2.1.3 Noise Bypass Capacitor
        2. 8.2.2.2 Capacitor Characteristics
          1. 8.2.2.2.1 Tantalum
        3. 8.2.2.3 On/OFF Input Operation
        4. 8.2.2.4 Reverse Input-Output Voltage
        5. 8.2.2.5 Power Dissipation
        6. 8.2.2.6 Estimating Junction Temperature
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 DSBGA Mounting
    4. 10.4 DSBGA Light Sensitivity
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
      2. 11.1.2 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    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

  • Wide Supply Voltage Range: 2.2 V to 16 V
  • Ensured 150-mA Output Current
  • Requires Minimum External Components
  • Stable With Low-ESR Output Capacitor
  • < 1-µA Quiescent Current When Shut Down
  • Low Ground Pin Current at all Loads
  • Output Voltage Accuracy 1% (A Grade)
  • High Peak Current Capability
  • Low ZOUT: 0.3-Ω Typical (10 Hz to 1 MHz)
  • Overtemperature/Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range

2 Applications

  • Cellular Phone
  • Palmtop/Laptop Computer
  • Personal Digital Assistant (PDA)
  • Camcorder, Personal Stereo, Camera

3 Description

The LP2985LV-N is a 150-mA, fixed-output voltage regulator designed to provide high performance and low noise in applications requiring output voltages ≤ 2 V.

Using an optimized vertically integrated PNP (VIP) process, the LP2985LV-N delivers unequaled performance in all specifications critical to battery-powered designs:

  • Ground Pin Current: Typically 825 µA at 150-mA load, and 75 µA at 1-mA load.
  • Enhanced Stability: The LP2985LV-N is stable with output capacitor equivalent series resistance (ESR) as low as 5 mΩ, which allows the use of ceramic capacitors on the output.
  • Sleep Mode: Less than 1-µA quiescent current when ON/OFF pin is pulled low.
  • Precision Output: 1% tolerance output voltages available (A grade).
  • Low Noise: By adding a 10-nF bypass capacitor, output noise can be reduced to 30 µV (typical).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LP2985LV-N SOT-23 (5) 2.90 mm × 1.60 mm
DSBGA (5) 1.164 mm × 0.987 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Space

Typical Application

LP2985LV-N typapp_snos150.gif