ETC ZMR500FTA

FIXED 2.5 AND 5 VOLT
MINATURE VOLTAGE REGULATORS
I_a!!al
ISSUE 2- OCTOBER 1995
FEATURES
. Small outline SOT23 package
DEVICE DESCRIPTION
The ZMR250 and 500 three terminal fixed
positive voltage regulators feature internel
current limit and will shut down under thermal
overload conditions
making the devices
almost impossible to destroy.
The circuit design offers an exceptionally small
quiescent current, only [email protected] for the 2.5 volt
device, ideal for low power applications. The
initial devices in the series regulate to 2.5 or 5
volts with a drive capability up to 50mA,
however, the flexible design will allow other
voltage selections to be made.
●
T092 package
●
2.5V and 5V
●
Output current up to 50mA
●
Very low Quiesent current (30pA)
●
Uncond~ionally stable
.
Other output voltages possible
.
Internal short circuit current Iimit
VOLTAGE RANGE
The device was designed with space saving in
mind and so is available in the small outline
SOT23 package. This tiny package is ideal for
applications where space is restricted. The
device is also available in the through hole
T092 package.
ZMR250
2.5V
ZMR500
5V
Contact Zetex Marketing
other voltages
SCHEMATIC DIAGRAM
for availabiiii
CONNECTION TABLE
Pin
SOT223
T092
1
G nd
In
2
In
G nd
3
out
out
Pack
F
c
B
1
see Diagrams Page 2-5
m
2-7
of
ZMR250
ZMR500
ABSOLUTE MAXIMUM
RATINGS
20V
Input voltage
Package
power
dissipation
(Tatnt)=25 ‘C)
SOT23
500mW
T092
600mW
Output current (Io)
(Note
3)
200mA
Operating temperature
-55 to 125°C
Storage temperature
-65 to 150”C
Note:
1.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,~tF1250C.
2. 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 excead the power dissipation
limits of the chosen package,
3. Maximum power dissipation, for the SOT23 package, is calculated assuming that the device is mounted on
a ceramic substrate measuring 15 x 15 x 0.6mm.
ZMR250
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) :Tj=250C, lo=lOmA, Vin=6.5V
SYMBOL
V.
PARAMETER
CONDITIONS
Output Voltage
MIN.
TYP.
MAX.
UNITS
2.438
2.5
2.563
v
l.=O to 50mA
T.=-55 to 125°C
2.360
2.640
v
vi”=4,5 to 20V
l.=O to 50mA
T.=-55 to 125°C
2.360
2.640
v
5
15
mV
AVO
Line Regulation
Vin=4.5
AVO
Load Regulation
l.=O to 50mA
l.=O to 10mA
20
12
30
mV
mV
Iq
Quiescent
Current
Ti=-55 to 125°C
30
40
G
Alq
Quiescent
Current Change
l.=O to 50mA
vin=4.5 to 20V
1
2
ilo
10
PA
v“
Output Noise Voltage
f=lOHz to IOKHZ
65
pV rms
Ripple Rejection
Vin=6.3 to 113V
f=120Hz
55
75
dB
4.2
3.9
v
AViJAVo
V,n
AVdAT
Input Voltage Required
Maintain Regulation
Average Temperature
Coefficient of V.
to 20V
[email protected]
To
lo=5.0mA
Tj=-55 to 125°C
2-8
0.275
0.700
mVPC
ZMR250
ZMR500
ZMR500
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) :Tj=25”C, 10=lOmA, Vin=lOV
;YMBOL
V.
PARAMETER
CONDITIONS
Output Voltage
MIN.
TYP.
MAX.
UNITS
4.875
5
5,125
v
l.=O to 50mA
Tj=-55 to 125°C
4.780
5.160
v
vin=7 to 20V
l.=O to 50mA
4.780
5.175
v
Tj=-55 to 125°C
AVO
Line Regulation
vin=7 to 20V
5
15
mV
AVO
Load Regulation
l.=O to 50mA
l.=O to 10mA
25
15
40
mV
mV
Iq
Quiescent
Current
Tj=-55 to 125°C
50
70
VA
Alq
Quiescent
Current Change
v“
AViJAVo
V,n
AVdAT
l.=O to 50mA
1
+10
LA
v,n=7 to 20V
2
10
VA
Output Noise Voltage
f=l OHz to IOKHZ
90
Ripple Rejection
Vin=8 to 18V
f=120Hz
Input Voltage Required
Maintain Regulation
Average Temperature
Coefficient of V.
55
WV rms
72
dB
To
-1
6.7
v
lo=5.0mA
Tj=-55 to 125°C
2-9
0.275
0.700
mVpC
ZMR250
ZMR500
TYPICAL CHARACTERISTICS
60
~
50
E
do
E
z
JO
3ZE33?I
20
i
3
–50
–25
0
25
50
Temperature
73
100
0
02&88
25
- (“C)
10
12
Input Voltage
Output Voltage v Temperature Coefficient
!.
18
,r3
Quiescent Current v Input VoltsgS
60
I
I
I
Iwo
1+
\
VIN=VO+4
56
52
48
.!4
,,
I
–50
–25
0
25
Temperature
50
75
I
1
100
125
I
40
–50
-25
(“C)
0
25
50
Temperature
Quiescent Current v Temperature
75
100
!25
- (“C)
Quiescent Current v Temperature
2.5
50
49
2.0
48
47
1.5
30
1.0
29
0.5
28
27
.
B
D
0,
Output
I
13
1
Current
20
(V)
100
-50
- (mA)
-25
0
25
Temperature
Quiescent Current v Output Current
50
75
100
125
(“C)
Drop-Out Voltage v Temperature
2-1o
/
ZMR250
ZMR500
TYPICAL CHARACTERISTICS
2-11