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

TPS74801 (ACTIVE)

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

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

Recommended alternative parts

  • TPS7A83A  -  The TPS7A83A is 2-A LDO with low-noise (4.4 µVRMS) and low-dropout (200mV) and improved accuracy (0.75%)
  • TPS7A92  -  TPS7A92 is 2A, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)

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

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Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
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    
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    
-40 to 125     -40 to 125
-40 to 85    
-40 to 85     -40 to 125     -40 to 125     -40 to 125    
10VSON
20VQFN    
20VQFN
20VQFN
7DDPAK/TO-263    
20VQFN
7DDPAK/TO-263    
20VQFN
20VQFN
7DDPAK/TO-263    
10VSON     10VSON
20VQFN
7DDPAK/TO-263    

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® Power Designer is now even easier to use. Learn more.

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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