Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start - TPS74801

TPS74801 (ACTIVE)

Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start

 

Description

The TPS748 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 for TJ = –40°C to 125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5 × 5 QFN-20 package for compatibility with the TPS744.

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: 60 mV Typical at 1.5 A, 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
    Startup
  • 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
    VSON-10 and 5 × 5 QFN-20 Packages
  • 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

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Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Pin/Package
Operating Temperature Range (C)
TPS74801 TPS74201 TPS74301 TPS74401 TPS74701 TPS74901
1.5    1.5    1.5    3    0.5    3   
Adjustable Output    Adjustable Output    Adjustable Output
Tracking Output   
Adjustable Output    Adjustable Output    Adjustable Output   
0.8    0.8    0.8    0.8    0.8    0.8   
5.5    5.5    5.5    5.5    5.5    5.5   
N/A    N/A    N/A    N/A    N/A    N/A   
0.8    0.8    0.8    0.8    0.8    0.8   
3.6    3.5    3.6    3.6    3.6    3.6   
1    3    3    3    1    3   
60    55    55    115    50    120   
2    1    1    1    2    2   
20    13    20    13    20    20   
28    52    45    50    27    28   
Ceramic    Cap Free
Ceramic   
Cap Free
Ceramic   
Cap Free
Ceramic   
Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
10VSON
20VQFN   
20VQFN
7DDPAK/TO-263   
20VQFN
7DDPAK/TO-263   
20VQFN
7DDPAK/TO-263   
10VSON    10VSON
20VQFN
7DDPAK/TO-263   
-40 to 125    -40 to 125
-40 to 85   
-40 to 85    -40 to 125    -40 to 125    -40 to 125   

Other qualified versions of TPS74801

Version Part Number Definition
Automotive TPS74801-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
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WEBENCH® Designer TPS74801

  Min   Max Range
Vin  V 0.8 to 5.5V
Vout  V 0.8 to 3.6V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C


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