TPS756 Fast-Transient Response 5-A Low-Dropout Voltage Regulator | TI.com

TPS756 (ACTIVE) Fast-Transient Response 5-A Low-Dropout Voltage Regulator

 

Description

The TPS756xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators and an adjustable voltage option regulator. These devices are capable of supplying 5 A of output current with a dropout of 250 mV (TPS75633). 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 TPS756xx 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 very low (typically 250 mV at an output current of 5 A for the TPS75633) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 µA 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 (enable) is connected to a high voltage level (> 2 V). Applying a low voltage level (< 0.7 V) to EN shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.

The TPS756xx 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 TPS756xx family is available in a 5-pin TO–220 (KC) and TO–263 (KTT) packages.

Features

  • 5-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
  • Dropout Voltage Typically 250 mV at 5 A (TPS75633)
  • 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

Parametrics

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Part number Order 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 PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS756 Order now Adjustable Output
Fixed Output    
5     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable     1     -40 to 85     39     35     2.84 | 1ku     Catalog     12     3     250     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.51 x 10.16 (TO-220 | 5)    
TPS755 Order now Adjustable Output
Fixed Output    
5     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
1     -40 to 125     39     35     2.84 | 1ku     Catalog     12     3     250     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.51 x 10.16 (TO-220 | 5)    
TPS757 Order now Adjustable Output
Fixed Output    
3     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
1     -40 to 125     39     35     3.31 | 1ku     Catalog     12     3     150     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.51 x 10.16 (TO-220 | 5)    
TPS758 Order now Adjustable Output
Fixed Output    
3     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable     1     -40 to 125
-40 to 85    
39     35     2.52 | 1ku     Catalog     12     3     150     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.51 x 10.16 (TO-220 | 5)    
TPS759 Order now Adjustable Output
Fixed Output    
7.5     5.5