PD-94488A 200 Krad(Si) Ultra Low Dropout OMR9805SC Adjustable Linear Regulator OMR9805SF Hermetic Package + 5.0Vin / +4.1 to +5.1Vout @ 3.0A Product Summary Part Number OMR9805SC OMR9805SF Dropout 0.4 V 0.4 V IO 3.0A 3.0A V in 5.0V 5.0V Package MO-078AA 8-Lead Flatpack MO-078AA Features: The OMR9805 is a radiation hardened, ultra low dropout adjustable linear regulator designed specifically for space applications. This product has been characterized to a total ionizing dose of 200 Krad (Si) per MIL-STD-883, Method 1019, Condition A at both high and low dose rates under biased and unbiased conditions to account for ELDRS effects in bipolar devices. The ultra low dropout voltage of 0.4V @ 3A makes the part particularly useful for applications requiring low noise and higher efficiency. n Total dose and low dose capabilitiy to 200 Krad(Si) allows use in space applications n Ultra low dropout voltage of 0.4 volt signifi cantly reduces power consumption n Low noise, higher efficiency n Remote shutdown permits power sequencing to be easily implemented n Hermetic MO-078AA (TO-258AA) and 8- lead flat pack ensure higher reliability n K-level screened Absolute Maximum Ratings Symbol Parameter Value Units 3.5 +7.0 +4.1 to +5.1 A V V Io V in Vout Output Current Input Voltage Output Voltage Range PTOT Power Dissipation TC=25 o C 19 W Thermal Resistance, Junction to Case (MO-078AA) Thermal Resistance, Junction to Case (8 lead flatpack) 6.5 6.5 °C/W Operating Junction -55 to +125 oC Storage Temperature Range -65 to +150 oC 300 oC RTHJC RTHJC TJ TSTG TL www.irf.com Lead Temperature °C/W 1 8/20/02 OMR9805SC, OMR9805SF Electrical Characteristics @ TA= 25°C (Unless Otherwise Specified) Parameter Input Voltage RangeOperating Reference Voltage Line Regulation Conditions Io= 3.0A 4.75 ≤ Vin ≤ 5.25, Io= 3.0A Load Regulation Dropout Voltage Current Limit Ripple Rejection Shutdown source current Shutdown Pin Threshold Output Voltage at Shutdown 4.5 ≤ Vin ≤ 5.5, Io= 50mA Vin= 5.0V 10ma ≤ Iout ≤ 3.0A Io= 3.0A. Vin= 5.0V Vin= 5.0V, Overcurrent Latchup F= 120 Hz., Vout= Vref Vshdn= 5V Isource= 200uA Vin= 5.0V, Io= 50mA, Shdn= +5.0V Symbol Min. 4.5 Typ. Max 6.5 Unit V Vref Vline 1.252 -100 1.265 1.305 +100 V mV Vload -5 -20 +5 +20 mV mV Vdrop Ilatch 0.4 3.0 V A 65 Ishdn Vshdn Vout (shdn) 1.6 +0.1 dB uA V V 200 1 -0.1 Electrical Characteristics TA = -55 to +125°C Parameter Input Voltage RangeOperating Reference Voltage Line Regulation Conditions Io= 3.0A Load Regulation Dropout Voltage Current Limit Ripple Rejection Shutdown source current Shutdown Pin Threshold Output Voltage at Shutdown 4.75 ≤ Vin ≤ 5.25, Io= 3.0A 4.5 ≤ Vin ≤ 5.5, Io= 50mA Vin= 5.0V 10ma ≤ Iout ≤ 3.0A Io= 3.0A. Vin= 5.0V Vin= 5.0V, Overcurrent Latchup F= 120 Hz., Vout= Vref Vshdn= 5V Isource= 200uA Vin= 5.0V, Io= 50mA, Shdn= +5.0V Symbol Min. 4.5 Typ. Max 5.5 Unit V Vref Vline 1.225 -150 1.265 1.305 +150 V mV Vload -150 -150 +150 +150 mV mV Vdrop Ilatch 0.4 3.0 V A 65 Ishdn Vshdn Vout (shdn) 200 1.0 -0.1 1.6 +0.1 dB uA V V Simplified Schematic Vout Vin Drive Shutdown 2 Gnd Adjust Ground www.irf.com OMR9805SC, OMR9805SF OMR9805 Ripple Rejection vs. Frequency 3A 120 1.5A 100 .75A .50A (db) 80 60 40 20 0 100 1,000 10,000 100,000 1,000,000 Frequency (Hz) Adjust Resistor Vout Vin OMR9805 100uF 16V Tantalum SHDN ADJ GND R1 1.0uF Ceramic X7R 220uF 6.3V Tantalum Vout = Vref x (1+R1/1000) In order to maintain regulation and stability specified additional input and output bulk capacitors are recommended. Capacitors recommended above should be low ESR tantalums with tolerances of +/20% max. Internal to the product are a 4.7uF input capacitor and a 4.7uF output capacitor in parallel with a 0.33uF ceramic capacitor. www.irf.com Shutdown: The regulator can be shutdown by applying a voltage >1.6V to pin 4. The regulator will restart when the SHDN pin is pulled below the shutdown threshold of 1.0V. If remote shutdown is not required, pin 4 shold be connected to GND to insure a safe “off” state. 3 OMR9805SC, OMR9805SF Mechanical Outline MO-078AA Base: GLIDCOP Pins: Copper core, Alloy 52 Seals: Glass Base Pin Connections Terminal Description 1 Vin 2 GND 3 Vout 4 Shutdown 5 Adjust 1 2 3 4 5 Mechanical Outline 8-Lead Flat Pack Base: 1010-1018 C.R.S. Pins: #52 Alloy, Copper Cored Seals: Glass – 9013 or Equiv. Finish: 100-250 Microinches Electroless Nickel Over 50-250 Microinches Electrolytic Nickel. 0.755 0.745 8X 0.080 0.070 8 7 6 5 0.755 0.745 Pin Connections Terminal Description 1,2 GND 3 Shutdown 4 Adjust 5,6 Vout 7,8 Vin 4 1 2 3 4 8x 0.040 0.065 0.110 0.150 0.040 0.065 0.105 0.225 0.305 0.295 0.095 0.180 0.165 8X 0.020 0.016 www.irf.com OMR9805SC, OMR9805SF Part Number Nomenclature OM R Omnirel 9805 Radiation Device Hardened/Tolerant Part Number OMR9805SCP OMR9805SCH OMR9805SCK OMR9805SFP OMR9805SFH OMR9805SFK X X S=Isolated Package N=Non-Isolated Package Description MO-078AA 5 - Lead MO-078AA 5 - Lead MO-078AA 5 - Lead 8 -Lead Flat Pack 8 -Lead Flat Pack 8 -Lead Flat Pack X Screening Screening 100% Final Electrical Class H per MIL-PRF-38534 Class K per MIL-PRF-38534 100% Final Electrical Class H per MIL-PRF-38534 Class K per MIL-PRF-38534 MIL-PRF-38534 Screening Requirements TEST/INSPECTION SCREENING LEVEL MIL-STD-883 Class H Class K Method (Space Level) Pre Seal Burn-In Optional Optional 1030 Nondestructive Bond Pull N/A 100% 2023 Internal Visual 100% 100% 2017 Temperature Cycle 100% 100% 1010 Constant Acceleration 100% 100% 2001 Mechanical Shock 100% 100% 2002 PIND N/A 100% 2020 Pre Burn-In Electrical Optional 100% Burn-In 100% 100% 1015 Final Electrical 100% 100% Seal 100% 100% 1014 Radiographic N/A 100% 2012 External Visual 100% 100% 2009 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 2527105 IR LEOMINSTER: 205 Crawford St., Leominster, Massachusetts 01453, Tel: (978) 5345776 Data and specifications subject to change without notice. 8/2002 www.irf.com 5