TPS757 Fast-Transient Response, 3-A, Low-Dropout Voltage Regulators | TI.com

TPS757 (ACTIVE)

Fast-Transient Response, 3-A, Low-Dropout Voltage Regulators

 

Description

The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG) and an adjustable voltage option regulator. These devices are capable of supplying 3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is low (typically 150 mV at an output current of 3 A for the TPS75733) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is low and independent of output loading (typically 125 &miccro;A over the full range of output current). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. The power-good terminal (PG) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS757xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS757xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT) packages.

Features

  • 3-A Low-Dropout Voltage Regulator
  • Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Open Drain Power-Good (PG) Status Output (Fixed Options Only)
  • Dropout Voltage Typically 150 mV at 3 A (TPS75733)
  • Low 125 µA Typical Quiescent Current
  • Fast Transient Response
  • 3% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages
  • Thermal Shutdown Protection

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)
Fixed output options (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)
TPS757 TPS755 TPS756 TPS758 TPS759
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
3     5     5     3     7.5    
5.5     5.5     5.5     5.5     5.5    
2.8     2.8     2.8     2.8     2.8    
5     5     5     5     5    
1.22     1.22     1.22     1.22     1.22    
1.5
1.8
2.5
3.3    
1.5
1.8
2.5
3.3    
1.5
1.8
2.5
3.3    
1.5
1.8
2.5
3.3    
1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
DDPAK/TO-263 | 5
TO-220 | 5    
DDPAK/TO-263 | 5
TO-220 | 5    
DDPAK/TO-263 | 5
TO-220 | 5    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
Enable
Power Good    
Enable     Enable     Enable
Power Good    
1     1     1     1     1    
-40 to 125     -40 to 125     -40 to 85     -40 to 125
-40 to 85    
-40 to 125    
39     39     39     39     39    
35     35     35     35     35    
3.31 | 1ku     2.84 | 1ku     2.84 | 1ku     2.52 | 1ku     2.60 | 1ku    
Catalog     Catalog     Catalog     Catalog     Catalog    
Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic    
12     12     12     12     10    
3     3     3     3     3    
150     250     250     150     400    
0.12     0.12     0.12     0.12     0.12    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)