SBVS054J November   2004  – April 2015 TPS730

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 Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout (UVLO)
      2. 7.3.2 Shutdown
      3. 7.3.3 Foldback Current Limit
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Adjustable Operation
      2. 8.1.2 Capacitor Recommendations
      3. 8.1.3 Input and Output Capacitor Requirements
      4. 8.1.4 Noise Reduction and Feed-Forward Capacitor Requirements
      5. 8.1.5 Reverse Current Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
    4. 10.4 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Spice Models
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 TPS730YZQ Nanostar™ Wafer Chip Scale Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • 200-mA RF Low-Dropout Regulator
    With Enable
  • Available in Fixed Voltages from 1.8 V to 3.3 V and Adjustable Voltages (1.22 V to 5.5 V)
  • High PSRR (68 dB at 100 Hz)
  • Low Noise (33 μVRMS, TPS73018)
  • Fast Start-Up Time (50 μs)
  • Stable With a 2.2-μF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Very Low Dropout Voltage (120 mV at 200 mA)
  • 5- and 6-Pin SOT-23 (DBV), and Wafer Chip Scale (YZQ) Packages

2 Applications

  • RF: VCOs, Receivers, ADCs
  • Audio
  • Cellular and Cordless Telephones
  • Bluetooth®, Wireless LAN
  • Handheld Organizers, PDAs

3 Description

The TPS730 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient responses in a small SOT-23 package. NanoStar™ packaging gives an ultrasmall footprint as well as an ultralow profile and package weight, making it ideal for portable applications such as handsets and PDAs. Each device in the family is stable, with a small, 2.2-μF ceramic capacitor on the output. The TPS730 family uses an advanced, proprietary BiCMOS fabrication process to yield low dropout voltages (for example, 120 mV at 200 mA, TPS73030). Each device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming low quiescent current (170 μA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 μA. The TPS73018 exhibits approximately 33 μVRMS of output voltage noise at 1.8 V output with a 0.01-μF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low-noise features as well as the fast response time.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS730 SOT-23 (5) 2.90 mm × 1.60 mm
SOT-23 (6) 2.90 mm × 1.60 mm
DSBGA (5) 1.35 mm × 1.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPS730 ai_typ_app_bvs054.gif

Ripple Rejection vs Frequency

TPS730 RIP1_v_f_bvs054.gif