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.
Pin Assignments
SOT23
Package Suffix - F
3
IN
GND
1
2
OUT
(Top View)
TO92
Package Suffix - C
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)
(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. See http://www.diodes.com for more 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
ZMR Series
Document number: DS32195 Rev. 11 - 2
1 of 7
www.diodes.com
March 2013
© Diodes Incorporated
ZMR Series
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Parameter
Input Voltage
ZMR250
ZMR330
ZMR500
Power Dissipation (T
AMB
= +25°C) (Note 6)
SOT23
Output Current (I
O
)
Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Notes:
Rating
22.5
24
25
500
100
-55 to +125
125
-65 to +150
Unit
V
mW
mA
°C
°C
°C
4. The maximum operating input voltage and output current of the device will be governed by the maximum power dissipation of the selected package.
Maximum package power dissipation is specified at 25°C and must be linearly derated to zero at T
AMB
= +125°C.
5. The following data represents pulse test conditions with junction temperatures as indicated at the initiation of the test. Continuous operation of the
devices with the stated conditions might exceed the power dissipation limits of the chosen package.
6. Maximum power dissipation for the SOT23 package, is calculated assuming that the device is mounted on a ceramic substrate measuring
15x15x0.6mm.
Recommended Operating Conditions
(@T
A
= +25°C, unless otherwise specified.)
Input Voltage Range
ZMR250
ZMR330
ZMR500
Min
4.2
4.8
7.0
Max
22.5
24
25
Unit
V
V
V
Electrical Characteristics
(@T
A
= +25°C, I
O
= 10mA, V
IN
= 6.5V, unless otherwise specified.)
ZMR250
Symbol
Parameter
Condition
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 4.5 to 22.5V
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 4.5 to 22.5V
I
O
= 0 to 50mA
I
O
= 0 to 10mA
T
J
= -55°C to +125°C
I
O
= 0 to 50mA
V
IN
= 4.5 to 22.5V
f = 10Hz to 10kHz
V
IN
= 6.3 to 18V
f = 120Hz
55
Min
2.438
2.360
2.630
5
20
12
30
1
2
65
75
3.9
I
O
= 5.0mA
T
J
= -55°C to +125°C
0.275
0.700
V
O
Output Voltage
Typ
2.5
Max
2.563
2.640
2.640
15
30
40
±10
10
Unit
V
V
V
mV
mV
µA
µA
µVrms
dB
V
mV/°C
ΔV
O
ΔV
O
I
S
ΔI
S
V
N
ΔV
IN
/ΔV
O
V
IN
ΔV
O
/Δ
T
Line Regulation
Load Regulation
Supply Current
Supply Current
Change
Output Noise
Voltage
Ripple Rejection
Input Voltage
Required to Maintain
Regulation
AverageTemperature
Coeffcient V
O
ZMR Series
Document number: DS32195 Rev. 11 - 2
2 of 7
www.diodes.com
March 2013
© Diodes Incorporated
ZMR Series
Electrical Characteristics
(@T
A
= +25°C, I
O
= 10mA, V
IN
= 7V, unless otherwise specified.)
ZMR330
Symbol
Parameter
Condition
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 5 to 24V
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 5 to 24V
I
O
= 0 to 50mA
I
O
= 0 to 10mA
T
J
= -55°C to +125°C
I
O
= 0 to 50mA
V
IN
= 5 to 20V
f = 10Hz to 10kHz
V
IN
= 6 to 20V
f = 120Hz
55
4.74
Min
3.217
3.148
3.148
5
20
13
120
5
2
80
V
O
Output Voltage
Typ
3.3
Max
3.383
3.393
3.408
15
30
170
10
10
Unit
V
V
V
mV
mV
µA
µA
µVrms
dB
V
ΔV
O
ΔV
O
I
S
ΔI
S
V
N
ΔV
IN
/ΔV
O
V
IN
Line Regulation
Load Regulation
Supply Current
Supply Current
Change
Output Noise
Voltage
Ripple Rejection
Input Voltage
Required to Maintain
Regulation
Electrical Characteristics
(@T
A
= +25°C, I
O
= 10mA, V
IN
= 10V, unless otherwise specified.)
ZMR500
Symbol
Parameter
Condition
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 7 to 25V
I
O
= 0 to 50mA
T
J
= -55°C to +125°C
V
IN
= 7 to 25V
I
O
= 0 to 50mA
I
O
= 0 to 10mA
T
J
= -55°C to +125°C
I
O
= 0 to 50mA
V
IN
= 7 to 25V
f = 10Hz to 10kHz
V
IN
= 8 to 18V
f = 120Hz
55
Min
4.785
4.780
4.780
5
25
15
50
1
2
90
72
6.2
I
O
= 5.0mA
T
J
= -55°C to +125°C
0.275
0.700
V
O
Output Voltage
Typ
5
Max
5.125
5.160
5.175
15
40
70
±10
10
Unit
V
V
V
mV
mV
µA
µA
µVrms
dB
V
mV/°C
ΔV
O
ΔV
O
I
S
ΔI
S
V
N
ΔV
IN
/ΔV
O
V
IN
ΔV
O
/Δ
T
Line Regulation
Load Regulation
Supply Current
Supply Current
Change
Output Noise
Voltage
Ripple Rejection
Input Voltage
Required to Maintain
Regulation
AverageTemperature
Coeffcient V
O
ZMR Series
Document number: DS32195 Rev. 11 - 2
3 of 7
www.diodes.com
March 2013
© Diodes Incorporated
ZMR Series
Typical Characteristics
5.02
5.00
4.98
ZMR500
I
o
=5mA
V
in
=V
o
+4
60
50
ZMR500
I
o
=10mA
Quiescent Current (µA)
Output Voltage
4.96
2.52
2.50
2.48
2.46
ZMR250
-50
-25
0
25
50
75 100 125
I
o
=5mA
V
in
=V
o
+4
40
30
20
10
ZMR250
0
2
4
6
8
10 12 14 16 18 20
Temperature ( °C)
Input Voltage (V)
Output Voltage Temperature
60
34
I
o
=0
V
in
=V
o
+4
Quiescent Current v Voltage
I
o
=0
V
in
=V
o
+4
56
Quiescent Current (µA)
32
Quiescent Current (µA)
52
30
ZMR250
48
ZMR500
44
28
26
-50 -25
0
25
50
75 100 125
40
-50
-25
0
25
50
75 100 125
Temperature ( °C)
Temperature ( °C)
Quiescent Current v Temperature
50
Quiescent Current v Temperature
2.5
I
o
=10mA
Quiescent Current (µA)
49 ZMR500
48
47
Drop-Out Voltage (V)
I
o
=0
V
in
=V
o
+4
2.0
ZMR500
1.5
30
29 ZMR250
28
27
0.1
1
10
I
o
=0
V
in
=V
o
+4
100
1.0
ZMR250
0.5
0
-50 -25
0
25
50
75 100 125
Output Current
Quiescent Current v Output Current
ZMR Series
Document number: DS32195 Rev. 11 - 2
Temperature ( °C)
Drop-Out Voltage v Temperature
March 2013
© Diodes Incorporated
4 of 7
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