SNVS515I September   2007  – January 2018 LM3102

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
      2.      Efficiency vs Load Current (VOUT = 3.3 V)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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  COT Control Circuit Overview
      2. 7.3.2  Start-Up Regulator (VCC)
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Zero Coil Current Detect
      5. 7.3.5  Overvoltage Comparator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel MOSFET and Driver
      8. 7.3.8  Soft-Start
      9. 7.3.9  Thermal Protection
      10. 7.3.10 Thermal Derating
    4. 7.4 Device Functional Modes
      1. 7.4.1 ON-Time Timer, Shutdown
  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 Design Steps for the LM3102 Application
        2. 8.2.2.2 External Components
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
  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 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YPA|28
  • PWP|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

PWP Package
20-Pin HTSSOP
Top View
LM3102 30021302.png
YPA Package
28–Ball DSBGA
Top View
LM3102 30021369.gif

Pin Functions

PINTYPEDESCRIPTION
NAMEPIN NO.BALL NO.
N/C 1 — — No Connection
9
10
12
19
20
SW 2 A2 Power Switching Node
A3
B2
B3
C2
3 C3
D2
D3
D4
VIN 4 A4 Power Input supply voltage
5 B4
BST 6 C4 Power Connection for bootstrap capacitor
AGND 7 E3 Ground Analog Ground
E4
F1
F2
F3
G3
SS 8 G2 Analog Soft-Start
GND 11 — Ground Ground
FB 13 G1 Analog Feedback
EN 14 G4 Analog Enable
RON 15 F4 Analog ON-time Control
VCC 16 E1 Power Start-up regulator Output
E2
PGND 17 A1 Ground Power Ground
B1
18 C1
D1
EP EP — Ground Exposed Pad