STMicroelectronics LDK320ADU33R, Voltage Regulator 18V SOT-89 3-Pin

This image is representative of the product range

View all Voltage Regulators

Subtotal (1 pack of 20 units)*

$17.26

(exc. GST)

$19.84

(inc. GST)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 01 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Pack*
20 +$0.863$17.26

*price indicative

Packaging Options:
RS Stock No.:
165-3195
Mfr. Part No.:
LDK320ADU33R
Brand:
STMicroelectronics
Find similar products by selecting one or more attributes.
Select all

Brand

STMicroelectronics

Product Type

Voltage Regulator

Package Type

SOT-89

Polarity

Positive

Mount Type

Surface

Quiescent Current

100μA

Pin Count

3

Series

LDK320

Standards/Approvals

No

Height

1.6mm

Width

2.6 mm

Length

4.6mm

Maximum Operating Temperature

125°C

Maximum Input Voltage

18V

Minimum Input Voltage

2.5V

Automotive Standard

No

COO (Country of Origin):
CN
The LDK320 is a low drop voltage regulator, which provides a maximum output current of 200 mA from an input voltage in the range of 2.5 V to 18 V, with a typical dropout voltage of 100 mV. It is stabilized with a ceramic capacitor on the output. The very good dynamic characteristic, combined with low drop voltage and low quiescent current make it suitable for low power battery-powered applications. The enable logic control function allows the LDK320 to be in shutdown mode by consuming a total current lower than 1 μA. This device also includes a short-circuit current limiting, thermal and SOA protections.

Input voltage from 2.5 to 18 V

Very low-dropout voltage (100 mV typ. @ 100 mA load)

Low quiescent current (typ. 60 μA, 1 μA in off mode)

Low noise

Wide range of output voltages available on request: fixed from 1.2 V to 12 V with 100 mV step and adjustable

Logic-controlled electronic shutdown

Compatible with ceramic capacitor COUT = 1 μF

Current, SOA and thermal protections

Related links