TPS74801 Single-output 1.5A LDO regulator, adjustable (0.8V to 3.6V), programmable soft start | TI.com

TPS74801 (ACTIVE) Single-output 1.5A LDO regulator, adjustable (0.8V to 3.6V), programmable soft start

 

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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  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

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order 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 PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS74801 Order now Adjustable Output     1.5     5.5     0.8     3.6     0.8     VQFN | 20
VSON | 10    
Enable
Power Good
Soft Start    
1     -40 to 125     36     20     0.80 | 1ku     Catalog     28     2     60     1     20VQFN: 25 mm2: 5 x 5 (VQFN | 20)
10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS74201 Order now Adjustable Output     1.5     5.5     0.8     3.5     0.8     DDPAK/TO-263 | 7
VQFN | 20
VQFN | 20    
Enable
Power Good
Soft Start    
1     -40 to 125
-40 to 85    
27     13     1.80 | 1ku     Catalog     52     1     55     3     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)    
TPS74301 Order now Adjustable Output
Tracking Output    
1.5     5.5     0.8     3.6     0.8     DDPAK/TO-263 | 7
VQFN | 20    
Enable
Power Good    
1     -40 to 85     20     20     2.00 | 1ku     Catalog     45     1     55     3     7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
TPS74401 Order now Adjustable Output     3     5.5     0.8     3.6     0.8     DDPAK/TO-263 | 7
VQFN | 20
VQFN | 20    
Enable
Power Good
Soft Start    
1     -40 to 125     27     13     2.50 | 1ku     Catalog     50     1     115     3     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)    
TPS74701 Order now Adjustable Output     0.5     5.5     0.8     3.6     0.8