ZMR250F Diodes Incorporated

FIXED 2.5 AND 5 VOLT ZMR SERIES MINIATURE VOLTAGE REGULATORS ISSUE 4 - MARCH 2002 DEVICE DESCRIPTION FEATURES The ZMR series of three terminal fixed Small outline SOT23 package positive voltage regulators feature internal TO92 package current limit and will shut down under 2.5V and 5V output thermal overload conditions making the devices difficult to destroy. 22.5V maximum input voltage (ZMR25H) The circuit design offers an exceptionally 25V maximum input voltage (ZMR50H) low quiescent current, only 30A for the 2.5 volt device, ideal for low power applications. Output current up to 50mA The initial devices in the series regulate to Very low Quiesent current (30A) 2.5 or 5 volts with a drive capability up to Unconditionally stable 50mA, however, the flexible design will allow other voltage selections to be made. Other output voltages possible Internal short circuit current limit The device is designed with space saving in mind and is available in the small outline VOLTAGE RANGE SOT23 package. The device is also available ZMR250 2.5V in through hole TO92 package. ZMR500 5.0V ZMR25H 2.5V ZMR50H 5.0V SCHEMATIC DIAGRAM Vin Vout Gnd 4-104ZMR SERIES ABSOLUTE MAXIMUM RATINGS Input voltage (ZMR25H) 22.5V ZMR250 20V (ZMR50H) 25V ZMR500 20V Package power dissipation SOT23 500mW (Note 3) (T =25 C) TO92 600mW amb Output current (I ) 100mA O Operating temperature -55 to 125C Storage temperature -65 to 150C 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 =125C. amb 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):T =25C, I =10mA, V =6.5V j O in SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS V Output Voltage 2.438 2.5 2.563 V O I =0 to 50mA 2.360 2.640 V O T =-55 to 125C j V =4.5 to 22.5V 2.360 2.640 V in I =0 to 50mA O T =-55 to 125C j V Line Regulation V =4.5 to 22.5V 5 15 mV O in V Load Regulation I =0 to 50mA 20 30 mV O O I =0 to 10mA 12 mV O l Supply Current T =-55 to 125C30 40 A s j l Supply Current Change I =0 to 50mA 1 10 A s O V =4.5 to 22.5V 2 10 A in V Output Noise Voltage f=10Hz to 10KHz 65 V rms n V / V Ripple Rejection V =6.3 to 18V in in O f=120Hz 55 75 dB V Input Voltage Required in To Maintain Regulation 4.2 3.9 V V / T Average Temperature I =5.0mA O O Coefficient of V T =-55 to 125C 0.275 0.700 mV/C O j 4-105