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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 5 Vin (Max) (V) 5.5 Vin (Min) (V) 2.8 Vout (Max) (V) 5 Vout (Min) (V) 1.22 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (uVrms) 35 Iq (Typ) (mA) 0.12 Thermal resistance θJA (°C/W) 39 Load capacitance (Min) (µF) 47 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 12 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 85 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

TO-220 (KC) 5 86 mm² 8.51 x 10.16 TO-263 (KTT) 5 155 mm² 10.16 x 15.24 open-in-new Find other Linear regulators (LDO)

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
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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.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS756xx: Fast-Transient Response 5-A Low Dropout Voltage Regulators datasheet (Rev. C) Mar. 01, 2004
Application notes LDO Noise Demystified (Rev. B) Aug. 18, 2020
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guides DEM-TO263LDO Demonstration Fixture Oct. 15, 2003

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SCHEMATICS Download
SLVR318A.PDF (94 KB)

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 5 View options
TO-220 (KC) 5 View options

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