SLVS582I April   2006  – November 2014 LP2950 , LP2951

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 Handling 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 LP2950 Functional Block Diagram
    3. 7.3 LP2951 Functional Block Diagram
    4. 7.4 Feature Description
      1. 7.4.1 ERROR Function (LP2951 Only)
      2. 7.4.2 Programming Output Voltage (LP2951 Only)
    5. 7.5 Device Functional Modes
      1. 7.5.1 Shutdown Mode
  8. 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 Input Capacitor (CIN)
        2. 8.2.1.2 Output Capacitor (COUT)
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Capacitance Value
        2. 8.2.2.2 Capacitor Types
        3. 8.2.2.3 CBYPASS: Noise and Stability Improvement
        4. 8.2.2.4 ESR Range
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

pinout_lvs582.gif

Pin Functions

PIN TYPE DESCRIPTION
NAME LP2950 LP2951
ERROR — 5 O Active-low open-collector error output. Goes low when VOUT drops by 6% of its nominal value.
FEEDBACK — 7 I Determines the output voltage. Connect to VTAP (with OUTPUT tied to SENSE) to output the fixed voltage corresponding to the part version, or connect to a resistor divider to adjust the output voltage.
GND 2 4 — Ground
INPUT 3 8 I Supply input
OUTPUT 1 1 O Voltage output.
SENSE — 2 I Senses the output voltage. Connect to OUTPUT (with FEEDBACK tied to VTAP) to output the voltage corresponding to the part version.
SHUTDOWN — 3 I Active-high input. Shuts down the device.
VTAP — 6 O Tie to FEEDBACK to output the fixed voltage corresponding to the part version.