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  • TPS717 Low-Noise, High-Bandwidth PSRR, Low-Dropout, 150-mA Linear Regulator

    • SBVS068I February   2006  – January 2016 TPS717

      PRODUCTION DATA.  

  • CONTENTS
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  • TPS717 Low-Noise, High-Bandwidth PSRR, Low-Dropout, 150-mA Linear Regulator
  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 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Startup and Noise Reduction Capacitor
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Minimum Load
      6. 7.3.6 Thermal Protection
    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 Transient Response
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Dropout Voltage
      4. 8.1.4 Output Noise
    2. 8.2 Typical Applications
      1. 8.2.1 Application for Fixed Voltage Versions and Adjustable Voltage Version
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Powering a PLL Integrated on an SOC
    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 Examples
    3. 10.3 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Module
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DSE|6
    • MPDS287A
  • DRV|6
    • MPDS216E
  • DCK|5
    • MPDS025K
Thermal pad, mechanical data (Package|Pins)
  • DRV|6
    • QFND241B
Orderable Information
  • sbvs068i_oa
  • sbvs068i_pm
search No matches found.
  • Full reading width
    • Full reading width
    • Comfortable reading width
    • Expanded reading width
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DATA SHEET

TPS717 Low-Noise, High-Bandwidth PSRR, Low-Dropout, 150-mA Linear Regulator

1 Features

  • Input Voltage: 2.5 V to 6.5 V
  • Available in Multiple Output Versions:
    • Fixed Output with Voltages from 0.9 V to 5 V
    • Adjustable Output Voltage from 0.9 V to 6.2 V
  • Ultra-High PSRR:
    • 70 dB at 1 kHz, 67 dB at 100 kHz, and
      45 dB at 1 MHz
  • Excellent Load and Line Transient Response
  • Very Low Dropout: 170 mV typical at 150 mA
  • Low Noise: 30 μVRMS typical (100 Hz to 100 kHz)
  • Small 5-pin SC-70, 2-mm × 2-mm WSON-6, and 1.5-mm × 1.5-mm WSON-6 Packages

2 Applications

  • Camera Sensor Power
  • Mobile Phone Handsets
  • PDAs and Smartphones
  • Wireless LAN, Bluetooth®

3 Description

The TPS717 family of low-dropout (LDO), low-power linear regulators offers very high power-supply rejection (PSRR) while maintaining very low 45-μA ground current in an ultra-small, five-pin SOT package. The family uses an advanced BiCMOS process and a PMOS pass device to achieve fast start-up, very low noise, excellent transient response, and excellent PSRR performance. The TPS717 is stable with a 1-μF ceramic output capacitor and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations. The device family is fully specified from TJ = –40°C to 125°C and is offered in a small SOT (SC70-5) package, a
2-mm × 2-mm WSON-6 package with a thermal pad, and a 1.5-mm × 1.5-mm WSON-6 package, which are ideal for small form factor portable equipment (such as wireless handsets and PDAs).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS717 SC70 (5) 2.00 mm × 1.25 mm
WSON (6) 2.00 mm × 2.00 mm
WSON (6) 1.50 mm × 1.50 mm
  1. For all available package and voltage options, see the orderable addendum at the end of the datasheet.

Typical Application Circuit for Fixed-Voltage Versions

TPS717 front_fbd_sbvs068.gif

PSRR vs Frequency

TPS717 front_tc_sbvs068.gif

4 Revision History

Changes from H Revision (January 2015) to I Revision

  • Added TI Design Go
  • Changed PMOSFET to PMOS in Description section Go
  • Added footnote to the Recommended Operating Conditions tableGo
  • Changed VFB parameter in Electrical Characteristics table Go
  • Changed units of Vn parameter in Electrical Characteristics tableGo
  • Deleted UVLO parameter minimum specification from Electrical Characteristics tableGo
  • Changed TA to TJ in x-axis of Figure 7, Figure 10, and Figure 11 Go
  • Changed second paragraph of Startup and Noise Reduction Capacitor sectionGo
  • Changed last bullet in Normal Operation section Go
  • Changed value of the TJ column in last row of Table 1 Go
  • Added last sentence to Input and Output Capacitor Requirements sectionGo
  • Changed VREF to VFB in Equation 3 Go
  • Changed definition of z in Table 4 Go

Changes from G Revision (April 2009) to H Revision

  • Changed pin descriptions throughout Pin Functions tableGo
  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
  • Changed load regulation typical specification from 120 µV to 70 µV to better reflect device performance Go
  • Changed condition for CNR = none for Vn parameterGo
  • Changed Figure 1, Figure 2, Figure 3, and Figure 4: removed legend, added call-outs for clarityGo
  • Changed titles of Figure 15, Figure 17, and Figure 25Go
  • Corrected input and output symbols in operational amplifiers in Functional Block Diagrams Go
  • Changed Undervoltage Lockout (UVLO) section text: reworded for clarityGo
  • Deleted Reverse Current Protection section Go

Changes from F Revision (February 2009) to G Revision

  • Changed min and max specs for Output accuracy, VOUT ≥ 1.0VGo

5 Pin Configuration and Functions

DCK Package
5-Pin SC70
Top View
TPS717 po_dck_slvsbm4.gif
DRV Package
2-mm × 2-mm, 6-Pin WSON
Top View
TPS717 po_drv_slvsbm4.gif
DSE Package
1.5-mm × 1.5-mm, 6-Pin WSON
Top View
TPS717 po_dse_slvsbm4.gif
1. N/C = No connection

Pin Functions

PIN I/O DESCRIPTION
NAME DCK
(SC70)		 DRV
(WSON)		 DSE
(WSON)
EN 3 4 4 I Driving the enable pin (EN) above VEN(high) turns on the regulator. Driving this pin below VEN(low) puts the regulator into standby mode, thereby disabling the output and reducing operating current.
FB 4 2 3 I Adjustable voltage version only. The voltage at this pin is fed to the error amplifier. A resistor divider from OUT to FB sets the output voltage when in regulation.
GND 2 3 2 — Ground
IN 1 6 6 I Input to the device. A 0.1-μF to 1-μF capacitor is recommended for better performance.
N/C — 5 5 — Not connected. This pin can be tied to ground to improve thermal dissipation.
NR 4 2 3 — Fixed voltage versions only. The noise reduction capacitor filters the noise generated by the internal band gap, thus lowering output noise.
OUT 5 1 1 O This pin is the regulated output voltage. A minimum capacitance of 1 μF is required for stability from this pin to ground.

 
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