TPS74701 Single-output 500mA LDO regulator, adjustable (0.8V to 3.6V), programmable soft start | TI.com

TPS74701 (ACTIVE)

Single-output 500mA LDO regulator, adjustable (0.8V to 3.6V), programmable soft start

 

Recommended alternative parts

  • TPS7A90  -  TPS7A90 is 500mA, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)
  • TPS7A92  -  TPS7A92 is 2A, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)
  • TPS7A10  -  TPS7A10 is a 300mA, low Iq, fixed output LDO that supports lower input/output voltages.
  • TPS7A87  -  TPS7A87 is a dual-channel, low noise, 500mA LDO.

Description

The TPS74701 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 μF, and is fully specified from –40°C to 125°C. The TPS74701 is offered in a small 3-mm × 3-mm SON-10 package for compatibility with the TPS74801.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • VOUT Range: 0.8 V to 3.6 V
  • Ultralow VIN Range: 0.8 V to 5.5 V
  • VBIAS Range 2.7 V to 5.5 V
  • Low Dropout: 50 mV Typically at 500 mA, VBIAS = 5 V
  • Power Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
  • 2% Accuracy Over Line, Load, and Temperature
  • Programmable Soft-Start Provides Linear Voltage Start-Up
  • VBIAS Permits Low VIN Operation With Good Transient Response
  • Stable With Any Output Capacitor ≥ 2.2 μF
  • Available in a Small 3-mm × 3-mm × 1-mm 10-Pin Package
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications With Special Start-Up Time or Sequencing Requirements
    • Hot-Swap and Inrush Controls
  • View more

    Parametrics Compare all products in Linear regulators (LDO)

     
    Output options
    Iout (Max) (A)
    Vin (Max) (V)
    Vin (Min) (V)
    Vout (Max) (V)
    Vout (Min) (V)
    Package Group
    Features
    Regulated outputs (#)
    Operating temperature range (C)
    Thermal Resistance θJA (°C/W)
    Noise (uVrms)
    Approx. price (US$)
    Rating
    Output capacitor type
    PSRR @ 100 KHz (dB)
    Accuracy (%)
    Vdo (Typ) (mV)
    Iq (Typ) (mA)
    Package size: mm2:W x L (PKG)
    TPS74701 TPS74201 TPS74301 TPS74401 TPS74801 TPS74901
    Adjustable Output     Adjustable Output     Adjustable Output
    Tracking Output    
    Adjustable Output     Adjustable Output     Adjustable Output    
    0.5     1.5     1.5     3     1.5     3    
    5.5     5.5     5.5     5.5     5.5     5.5    
    0.8     0.8     0.8     0.8     0.8     0.8    
    3.6     3.5     3.6     3.6     3.6     3.6    
    0.8     0.8     0.8     0.8     0.8     0.8    
    VSON | 10     DDPAK/TO-263 | 7
    VQFN | 20
    VQFN | 20    
    DDPAK/TO-263 | 7
    VQFN | 20    
    DDPAK/TO-263 | 7
    VQFN | 20
    VQFN | 20    
    VQFN | 20
    VSON | 10    
    DDPAK/TO-263 | 7
    VQFN | 20
    VSON | 10    
    Enable
    Power Good
    Soft Start    
    Enable
    Power Good
    Soft Start    
    Enable
    Power Good    
    Enable
    Power Good
    Soft Start    
    Enable
    Power Good
    Soft Start    
    Enable
    Power Good
    Soft Start    
    1     1     1     1     1     1    
    -40 to 125     -40 to 125
    -40 to 85    
    -40 to 85     -40 to 125     -40 to 125     -40 to 125    
    42     27     20     27     36     34    
    20     13     20     13     20     20    
    0.80 | 1ku     1.80 | 1ku     2.00 | 1ku     2.50 | 1ku     0.80 | 1ku     1.45 | 1ku    
    Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
    Ceramic     Cap Free
    Ceramic    
    Cap Free
    Ceramic    
    Cap Free
    Ceramic    
    Ceramic     Ceramic    
    27     52     45     50     28     28    
    2     1     1     1     2     2    
    50     55     55     115     60     120    
    1     3     3     3     1     3    
    10VSON: 9 mm2: 3 x 3 (VSON | 10)     7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
    20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
    20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
    7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
    20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
    7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
    20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
    20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
    20VQFN: 25 mm2: 5 x 5 (VQFN | 20)
    10VSON: 9 mm2: 3 x 3 (VSON | 10)    
    7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
    20VQFN: 25 mm2: 5 x 5 (VQFN | 20)
    10VSON: 9 mm2: 3 x 3 (VSON | 10)    

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