TPS73643DBVT The TPS73643DBVT is a 4.3V, 400mA low-dropout linear voltage regulator from Texas Instruments. It features ultra-low dropout voltage and low noise operation.
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TPS73643DBVT

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The TPS73643DBVT is a 4.3V, 400mA low-dropout linear voltage regulator from Texas Instruments. It features ultra-low dropout voltage and low noise operation.
✓ Total Stock: 342 pcs
$ Price Range: $0.28

TPS73643DBVT Available from 1 distributor

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342 pcs
342 pcs On Request 1 On Request On Request 17+ On Request On Request

TPS73643DBVT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Noise
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)

TPS73643DBVT Description

Short technical summary and product information.

The Texas Instruments TPS73643DBVT is a low-dropout (LDO) linear voltage regulator designed for portable and battery-powered equipment. It utilizes an NMOS pass transistor topology, providing stability with or without an output capacitor and offering excellent load transient response.

 

Key electrical specifications include an input voltage range of 1.7V to 5.5V, an ultra-low dropout voltage of 75mV typical at 400mA, and a maximum output current of 400mA. The device exhibits low noise characteristics (30µVRMS) and high PSRR, making it suitable for noise-sensitive applications like VCOs. It also features thermal shutdown and current limit protection.

 

This regulator is available in a fixed 4.3V output version and comes in a compact SOT-23-5 (SC-74A, SOT-753) surface-mount package, ideal for space-constrained designs. Its low quiescent current, under 1µA in shutdown mode, further enhances its suitability for power-sensitive applications.

 

Applications include post-regulation for switching supplies, point-of-load regulation for DSPs, FPGAs, ASICs, and microprocessors, and general use in portable electronics.

TPS73643DBVT Quick Information

Product Type: Linear Voltage Regulator
Series: TPS736
Canonical Name: TPS73643DBVT Low-Dropout Linear Voltage Regulator
Subcategory: Linear

TPS73643DBVT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TPS73643DBVT Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPS73643DBVT Features

  • Stable with no output capacitor required.
  • Ultra-low dropout voltage: 75mV typical.
  • Low noise: 30µVRMS typical.
  • 400mA maximum output current.
  • Compact SOT-23-5 surface-mount package.

TPS73643DBVT Applications

  • Ideal for portable, battery-powered devices.
  • Suitable for post-regulation of switching supplies.
  • Powers noise-sensitive circuitry like VCOs.
  • Point-of-load regulation for processors.

TPS73643DBVT FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output voltage of the TPS73643DBVT?

The TPS73643DBVT provides a fixed output voltage of 4.3V.

What is the maximum output current for the TPS73643DBVT?

The TPS73643DBVT can supply a maximum output current of 400mA.

What is the dropout voltage of the TPS73643DBVT?

The dropout voltage is 0.2V maximum at 400mA, and 75mV typical.

What is the operating temperature range for the TPS73643DBVT?

The operating temperature range is -40°C to 125°C.

What package is the TPS73643DBVT available in?

The TPS73643DBVT is available in a SOT-23-5 package.

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