SGLS303F May   2005  – April 2016 TPS732-Q1

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 Switching Characteristics
    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 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Dropout Voltage
      4. 7.3.4 Transient Response
      5. 7.3.5 Reverse Current
      6. 7.3.6 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
  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 Input and Output Capacitor Requirements
        2. 8.2.2.2 Output Noise
      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 Power Dissipation
    4. 10.4 Package Mounting
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    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

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 0: –40°C to 150°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4B
    • Device MM Classification Level M2
  • Stable With No Output Capacitor or Any Value or Type of Capacitor
  • Input Voltage Range: 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 40-mV Typical at 250 mA
  • Excellent Load Transient Response—With or Without Optional Output Capacitor
  • New NMOS Topology Provides Low Reverse Leakage Current
  • Low Noise: 30-μVRMS Typical (10 kHz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy (Line, Load, and Temperature)
  • Less Than 1-μA Maximum IQ in Shutdown Mode
  • Thermal Shutdown and Specified Minimum and Maximum Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.2 V, 1.5 V, 1.6 V, 1.8 V,
      2.5 V, 3 V, 3.3 V, and 5 V
    • Adjustable Outputs From 1.2 V to 5.5 V
    • Custom Outputs Available

2 Applications

  • Portable and Battery-Powered Equipment
  • Post-Regulation for Switching Supplies
  • Noise-Sensitive Circuitry Such as VCOs
  • Point of Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors

3 Description

The TPS732-Q1 family of low-dropout (LDO) voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low ESR, and even allows operation without a capacitor. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1 μA and ideal for portable applications. The extremely low output noise (30 μVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS73201-Q1 SOT-23 (5) 2.90 mm × 1.60 mm
VSON (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application Circuit for Fixed Voltage Versions

TPS732-Q1 typ_app_cx_front_gls303.gif