PD-94478A 1 M Rad(Si) Ultra Low Dropout Positive Adjustable Linear Regulator Hermetic Package OMR9604SC OMR9604SF + 3.3Vin at 3.0A Product Summary Part Number OMR9604SC OMR9604SF Dropout 0.4 V 0.4 V IO 3.0A 3.0A Vin Package 3.3V MO-078AA 3.3V 8-Lead Flatpack MO-078AA Features: The OMR9604 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 1 M Rad (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 1M Rad(Si) allows use in space applications n Ultra low dropout of 0.4 volt significantly 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 +1.26 to +3.2 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 OMR9604SC, OMR9604SF Electrical Characteristics @ TA= 25°C (Unless Otherwise Specified) Parameter Input Voltage RangeOperating Reference Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Ripple Rejection Shutdown Source Current Shutdown Pin Threshold Output Voltage at Shutdown Conditions Io= 3.0A 3.13 ≤ Vin ≤ 3.46, Io= 3.0A 2.9 ≤ Vin ≤ 3.8, Io= 50mA Vin= 3.3V 10ma ≤ Iout ≤ 3.0A Io= 3.0A. Vout= 2.5V Vin= 3.3V, Overcurrent Latchup F= 120 Hz., Vout= Vref Vshdn= 5V Isource= 200uA Vin= 3.3V, Io= 50mA, Shdn= +5.0V Symbol Vin Min. 2.9 Typ. Max 6.5 Unit V Vref Vline 1.252 -100 -5 -20 1.265 1.278 +100 +5 +20 V mV mV mV Vload Vdrop Ilatch 0.4 3.0 65 Ishdn Vshdn Vout (shdn) 200 1.0 -0.1 1.6 +0.1 V A dB uA V V Electrical Characteristics TA = -55 to +125°C Parameter Input Voltage RangeReference Voltage Line Regulation Conditions Io= 3.0A 3.13 ≤ Vin ≤ 3.46, Io= 3.0A 2.9 ≤ Vin ≤ 3.8, Io= 50mA Load Regulation Vin= 3.3V 10ma ≤ Iout ≤ 3.0A Dropout Voltage Io= 3.0A. Vout= 2.5V Current Limit Vin= 3.3V, Overcurrent Latchup Ripple Rejection F= 120 Hz., Vout= Vref Shutdown Source Current Vshdn= 5V Shutdown Pin Threshold Isource= 200uA Output Voltage at Shutdown Vin= 3.3V, Io= 50mA, Shdn= +5.0V Symbol Vin Vref Vline Vload Vdrop Ilatch Ishdn Vshdn Vout (shdn) Min. 2.9 1.225 -150 -150 -150 Typ. 1.265 Max 6.5 1.305 +150 +150 +150 Unit V V mV mV mV 0.4 V A dB uA V V 3.0 65 200 1.0 -0.1 1.6 0.1 Simplified Schematic Vout Vin Drive Shutdown 2 Gnd Adjust Ground www.irf.com OMR9604SC, OMR9604SF OMR9604 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 OMR9604 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 OMR9604SC, OMR9604SF 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. Pin Connections Terminal Description 1,2 GND 3 Shutdown 4 Adjust 5,6 Vout 7,8 Vin 4 0.755 0.745 8X 0.080 0.070 8 7 6 5 0.755 0.745 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 OMR9604SC, OMR9604SF Part Number Nomenclature OM R Omnirel Radiation Hardened/Tolerant Part Number OMR9604SCP OMR9604SCK OMR9604SFP OMR9604SFK 9604 Device X X S=Isolated Package N=Non-Isolated Package Description MO-078AA 5 - Lead MO-078AA 5 - Lead 8 -Lead Flat Pack 8 -Lead Flat Pack X Screening Screening 100% Final Electrical Class K per MIL-PRF-38534 100% Final Electrical Class K per MIL-PRF-38534 MIL-PRF-38534 Screening Requirements TEST/INSPECTION SCREENING LEVEL MIL-STD-883 Class K Method (Space Level) Pre Seal Burn-In Optional 1030 Nondestructive Bond Pull 100% 2023 Internal Visual 100% 2017 Temperature Cycle 100% 1010 Constant Acceleration 100% 2001 Mechanical Shock 100% 2002 PIND 100% 2020 Pre Burn-In Electrical 100% Burn-In 100% 1015 Final Electrical 100% Seal 100% 1014 Radiographic 100% 2012 External Visual 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