SLVS908D February   2009  – June 2015 TPS22949

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Current Limiter Electrical Characteristics
    7. 7.7 Low-Noise LDO Regulator Electrical Characteristics
    8. 7.8 Current Limiter Switching Characteristics
    9. 7.9 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout (UVLO)
      2. 8.3.2 Fault Reporting
      3. 8.3.3 Current Limiting
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Input Voltage
      2. 9.1.2 Input/Output Capacitors
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Start-Up Sequence
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

6 Pin Configuration and Functions

YZP Package
8-Pin DSBGA
Top View
TPS22949 TPS22949A po_yzp_lvs908.gif
DRG Package
8-Pin WSON
Top View
TPS22949 TPS22949A po_drg_lvs908.gif
The exposed center pad, if used, must be connected as a secondary GND or left electrically open.

Pin Functions

PIN I/O DESCRIPTION
NAME DSBGA WSON
EN1 D2 4 I Power switch control input. Active high. Do not leave floating.
EN2 A2 1 I LDO control input. Active high. Do not leave floating.
GND B2 2 — Ground
OC D1 5 O Overcurrent output flag. Active low, open-drain output that indicates an overcurrent, supply undervoltage, or overtemperature state.
V+ A1 8 I Supply voltage
VIN C2 3 I Supply input. Input to the power switch; bypass this input with a ceramic capacitor to ground.
VOUTCL C1 6 O Switch output. Output of the power switch
VOUTLDO B1 7 O LDO output. Output of the RF LDO fixed to 1.8 V(1).
(1) Output voltages from 0.9 V to 3.6 V in 50-mV increments are available through the use of innovative factory EEPROM programming; minimum order quantities may apply. Contact factory for details and availability.

YZP Package Pin Assignments

D EN1 OC
C VIN VOUTCL
B GND VOUTLDO
A EN2 V+
2 1