Diodes ZMR Series User Manual
Zmr series, Description, Features
ZMR Series
Document number: DS32195 Rev. 11 - 2
1 of 7
March 2013
© Diodes Incorporated
ZMR Series
FIXED 2.5, 3.3 AND 5 VOLT MINIATURE VOLTAGE REGULATORS
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; equaling that of the ZMR25H and ZMR50H
respectively.
The ZMR330 provides a 3.3V output over an input range of 5V to
24V.
Features
Small Outline SOT23 Package
2.5V, 3.3V and 5V Output
Output Current up to 50mA
Very Low Quiescent Current (30μA)
Unconditionally
Stable
Internal Short Circuit Current Limit
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
SOT23
Package Suffix - F
(Top View)
TO92
Package Suffix - C
(Underside View)
Applications
Consumer
Electronics
DVD/Blu-Ray Player, CD-ROM, Set Top Box
TV, Monitor, Security System
Supply for Low Power Microcontroller
Local Low Current Supply within Larger Systems
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. Se information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and < 1000 ppm antimony compounds.
Equivalent Circuit
V
IN
V
OUT
Gnd
GND
OUT
IN
2
3
1