|
Details, datasheet, quote on part number:ZMR250
| |
Datasheet text preview:
FIXED 2.5 AND 5 VOLT MINIATURE VOLTAGE REGULATORS
ISSUE 4 - MARCH 2002 DEVICE DESCRIPTION
The ZMR series of three terminal fixed positive voltage regulators feature internal cu rrent 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 2.5 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. The device is designed with space saving in mind and is available in the small outline SOT23 package. The device is also available in through hole TO92 package.
ZMR SERIES
FEATURES
· · · · · · · · · ·
Small outline SOT23 package TO92 package 2.5V and 5V output 22.5V maximum input voltage (ZMR25H) 25V maximum input voltage (ZMR50H) Output current up to 50mA Very low Quiesent current (30µA) Unconditionally stable Other output voltages possible Internal short circuit current limit
VOLTAGE RANGE
ZMR250 ZMR500 ZMR25H ZMR50H 2.5V 5.0V 2.5V 5.0V
SCHEMATIC DIAGRAM
Vin
Vout
Gnd
4-104
ZMR SERIES
ABSOLUTE MAXIMUM RATINGS
Input voltage (ZMR25H) (ZMR50H) 22.5V 25V ZMR250 ZMR500 20V 20V
Package power dissipation (Tamb=25 °C) Output current (IO) Operating temperature Storage temperature
SOT23 500mW (Note 3) TO92 600mW 100mA -55 to 125°C -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 Tamb =125°C. 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 exceed 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.
ZMR25H ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=10mA, Vin=6.5V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 2.438
TYP. 2 .5
MAX. 2.563 2.640 2.640
UNITS V V V
Output Voltage IO=0 to 50mA Tj=-55 to 125°C Vin=4.5 to 22.5V IO=0 to 50mA Tj=-55 to 125°C
2.360 2.360
VO VO
ls
Line Regulation Load Regulation Supply Current Supply Current Change Output Noise Voltage
Vin=4.5 to 22.5V IO=0 to 50mA IO=0 to 10mA Tj=-55 to 125°C IO=0 to 50mA Vin=4.5 to 22.5V f=10Hz to 10KHz Vin=6.3 to 18V f=120Hz 55 4.2 IO=5.0mA Tj=-55 to 125°C 4-105
5 20 12 30 1 2 65 75 3 .9 0.275
15 30 40 ±10 10
mV mV mV µA µA µA µV rms dB V
ls
Vn
Vin /VO Ripple Rejection
Vin
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
VO /T
0.700
mV/°C
ZMR SERIES
ZMR50H ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=10mA, Vin=10V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 4.875
TYP. 5
MAX. 5.125 5.160 5.175
UNITS V V V
Output Voltage IO=0 to 50mA Tj=-55 to 125°C Vin=7 to 25V IO=0 to 50mA Tj=-55 to 125°C
4.780 4.780
VO VO
ls
Line Regulation Load Regulation Supply Current Supply Current Change Output Noise Voltage
Vin=7 to 25V IO=0 to 50mA IO=0 to 10mA Tj=-55 to 125°C IO=0 to 50mA Vin=7 to 25V f=10Hz to 10KHz Vin=8 to 18V f=120Hz 55
5 25 15 50 1 2 90 72
15 40 70 ±10 10
mV mV mV µA µA µA µV rms dB
ls
Vn
Vin /VO Ripple Rejection
Vin
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO IO=5.0mA Tj=-55 to 125°C
7
6 .7 0.275 0.700
V mV/°C
VO /T
4-106
|
|
