Mfr Part #:

LDK320ADU50R

The STMicroelectronics LDK320ADU50R is a linear voltage regulator with a fixed 5V output and a 200mA current capability. It is designed for surface mount applications in a SOT-89 package.

✓ Total Stock: 14,000 pcs

$ Price Range: $0.28

LDK320ADU50R Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Fe Components ✓ Non-Authorised Inventory information	10,000 pcs On Request	10000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Risen Electronics ✓ Non-Authorised Inventory information	4,000 pcs On Request	4000 pcs	On Request	1	On Request	On Request	On Request	On Request	2026-02-16 21:33:16

LDK320ADU50R Description

Short technical summary and product information.

The LDK320ADU50R from STMicroelectronics is a linear voltage regulator designed for power management applications. It provides a stable 5V fixed output voltage with a maximum output current of 200mA. The device accepts an input voltage up to 18V and features a low voltage dropout of 0.35V at 200mA.

Key electrical characteristics include a quiescent current of 90 µA and a supply current of up to 100 µA. It offers good Power Supply Ripple Rejection (PSRR) ranging from 88dB to 48dB across a frequency range of 120Hz to 10kHz. Protection features include over-current and over-temperature capabilities.

This regulator operates within a wide temperature range of -40°C to 125°C (TJ). It is housed in a TO-243AA package, also known as SOT-89, suitable for surface mounting. The RoHS status is ROHS3 Compliant, and it has a Moisture Sensitivity Level (MSL) of 1.

Ideal for applications requiring a reliable and efficient voltage regulation solution, the LDK320ADU50R is a versatile component for various electronic designs.

LDK320ADU50R Quick Information

Product Type: Voltage Regulator

Series: LDK320

Canonical Name: LDK320ADU50R Voltage Regulator

Subcategory: Power Management

LDK320ADU50R Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

LDK320ADU50R Estimated Pricing

Qty	Low	High
1+	$0.28	$0.28

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

LDK320ADU50R Features

Fixed 5V output voltage.
200mA maximum output current.
Low 0.35V dropout voltage.
Wide -40°C to 125°C operating temperature.
Surface mount SOT-89 package.

LDK320ADU50R Applications

Provides stable 5V power.
Suitable for low-power circuits.
Ideal for space-constrained designs.
Offers over-current protection.
Features over-temperature shutdown.

LDK320ADU50R FAQs

5 frequently asked questions generated from this part’s specifications.

What is the output voltage of the LDK320ADU50R?

The LDK320ADU50R has a fixed 5V output voltage.

What is the maximum output current for the LDK320ADU50R?

The LDK320ADU50R can provide a maximum output current of 200mA.

What is the maximum input voltage for this linear regulator?

The LDK320ADU50R accepts a maximum input voltage of 18V.

What is the operating temperature range of the LDK320ADU50R?

The operating temperature range for the LDK320ADU50R is -40°C to 125°C (TJ).

What package type is the LDK320ADU50R available in?

The LDK320ADU50R is available in a TO-243AA (SOT-89) package suitable for surface mounting.

LDK320ADU50R Alternate Parts

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