Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT23

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ZMR250

50mA 2.5V Linear Regulator

Datasheet

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Description

The ZMR series of three terminal fixed positive voltage regulators feature internal current limit and will shut down under thermal overload conditions making the devices difficult to destroy. The circuit design offers an exceptionally low quiescent current, only 30µA for the 2.5V device, ideal for low power applications. The initial devices in the series regulate to 2.5 or 5V with a drive capability up to 50mA. The device is designed with space saving in mind and is available in the small outline SOT23 package. The ZMR250 has expanded its input voltage range to 22.5V and the ZMR500 has expanded its input voltage range to 25V; equalling that of the ZMR25H and ZMR50H respectively. The ZMR330 provides a 3.3V output over an input range of 5V to 24V.

Specifications & Technical Documents

Product Parameters

Iq (typ) (µA)	40
Operating Ambient Temperature (°C)	-55 to 125
AEC Qualified	No
Compliance (Only Automotive Supports PPAP)	Standard
Type	Linear Regulator
Output options	Fixed
Iout (A)	0.05
Vin (Max) (V)	22.5
Fixed Vout (V)	2.5
Accuracy 25C	2.5
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	1.4
Enable Active	No
Channels	1
Output Discharge	No
Power Good	No
Reverse Protection	No
VCTL Function	No

Technical Documents

Design Tools

dn40.pdf (68 KB)

ICP Reports

SOT23epICP.pdf (1.5 MB)

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products