OMR9601 1 M Rad (Si), ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR +3.3Vin to +2.5V Output at 3.0A In Hermetic Packages FEATURES • Total dose and low dose capability to 1M Rad (Si) allows use in space applications • Ultra low dropout voltage of 0.4V @ 3A out significantly reduces power consumption • Low noise, higher efficiency • Remote Shutdown permits power sequencing to be easily implemented • Hermetic MO-078AA (TO-258) and 8-lead flat pack ensure higher reliability • K-level screened DESCRIPTION The OMR9601 is a radiation hardened, ultra low dropout linear regulator designed specifically for space applications. This product has been characterized to a total ionizing dose of 1M 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 ELDRE 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. MAXIMUM RATINGS (TJ=25°°C unless otherwise specified) Parameter Output Current Input Voltage Lead Temperature Power Dissipation, TC =25°C Thermal Resistance, Junction to Case – MO-078AA Thermal Resistance, Junction to Case – 8 Lead Flat Pack Operating Temperature Storage Temperature Range Symbol Io Vin Tl PTOT RthJC RthJC Tj Ts Value 3.5 +7.0 300 19 6.5 6.5 -55…+125 -65…+150 Block Diagram Vin Vout O (Pin 3) O (Pin 1) Shutdown O (Pin 4) SHDN Reg. Control GND Rev D, 02/14/2002 (Pin 2) 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com Unit A V °C W °C/W °C/W °C °C OMR9601 ELECTRICAL CHARACTERISTICS (Ta=25°°C unless otherwise specified) Parameter Conditions Symbol Min. Output Voltage 2.475 Input Voltage RangeOperating Line Regulation Load Regulation Vin= 3.3V, Io= 3.0A Vout 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 Vline Vload Typ . 2.5 Max Unit 2.525 V 2.9 6.5 V -100 -5 -20 +100 +5 +20 mV mV mV 0.4 V 1.6 +0.1 A dB uA V V Max 2.625 Unit V 2.9 6.5 V -150 -150 -150 +150 +150 +150 mV mV mV 0.4 V A B uA V V Vdrop Dropout Voltage Current Limit Ripple Rejection Shutdown source current Shutdown Pin Threshold Output Voltage at Shutdown Vin= 3.3V Short Circuit F= 120 Hz., Vout= Vref Vshdn= 5V Isource= 200uA Vin= 3.3V, Io= 50mA, Shdn= +5.0V ELECTRICAL CHARACTERISTICS (Ta= -55 to +125°°C) Parameter Conditions Output Voltage Vin= 3.3V, Io= 3.0A Input Voltage RangeOperating Line Regulation Load Regulation Dropout Voltage Current Limit Ripple Rejection Shutdown source current Shutdown Pin Threshold Output Voltage at Shutdown Isc 200 Ishdn Vshdn Vout (shdn) 1.0 -0.1 Symbol Vout Min. 2.375 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 Short Circuit F= 120 Hz., Vout= Vref Vshdn= 5V Isource= 200uA Vin= 3.3V, Io= 50mA, Shdn= +5.0V 3.0 65 Vline Vload Vdrop Isc 3.0 65 200 Ishdn Vshdn Vout (shdn) Typ. 2.5 1.0 -0.1 1.6 +0.1 Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Post Radiation Characteristics High Dose Rate Characteristics (90 Rads(Si)/Sec) Typical Voltage Output 2.680 High Dose Rate 90 rad(Si)/sec (Post 1000hr Life Test) 2.640 Vout (V) 2.600 High Dose Rate 90 rad(Si)/sec (Pre 1000 hr Life Test) 2.560 2.520 2.480 2.440 Conditions: Vin = 3.3vdc Iload = 10 m a 2.400 1 10 100 1000 Total Dose Level (krads) Typical Bias Current 0.00 Conditions: Vin = 3.3Vdc Iload = 10 ma -0.10 -0.20 -0.30 High Dose Rate 90 rad(Si)/sec (Pre 1000 hr Life Test) Ibias (ma) -0.40 -0.50 -0.60 -0.70 High Dose Rate 90 rad(Si)/sec (Post 1000hr Life Test) -0.80 -0.90 -1.00 1 10 100 1000 Total Dose Level (krads) Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Post Radiation Characteristics High Dose Rate Characteristics (90 Rads (Si)/Sec) Typical Load Regulation 100.00 Conditions: 3.135vdc - 3.465vdc Iload = 3.0A 80.00 60.00 Load Reg (mv) 40.00 20.00 High Dose Rate 90 rad(Si)/sec (Post 1000hr Life Test) 0.00 -20.00 -40.00 High Dose Rate 90 rad(Si)/sec (Pre 1000 hr Life Test) -60.00 -80.00 -100.00 1 10 100 1000 Total Dose Level (krads) Typical Line Regulation High Dose Rate 90 rad(Si)/sec (Post 1000hr Life Test) 100.00 80.00 60.00 Line Reg (mv) 40.00 High Dose Rate 90 rad(Si)/sec (Pre 1000 hr Life Test) 20.00 0.00 -20.00 -40.00 -60.00 Conditions: 3.135vdc - 3.465vdc Iload = 3.0A -80.00 -100.00 1 10 100 1000 Total Dose Level (krads) Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Post Radiation Characteristics Low Dose Rate Characteristics (0.1 Rads (Si)/Sec) Typical Voltage Output 2.600 Vout (V) 2.550 Low Dose Rate 0.1 rad(Si)/sec 2.500 2.450 Conditions: Vin = 3.3vdc Iload = 10 ma 2.400 1 10 100 1000 Total Dose Level (krads) OMR9601 Ripple Rejection vs. Frequency (db) 3A 120 1.5A 100 .75A 80 .50A 60 40 20 0 100 1,000 10,000 100,000 1,000,000 Frequency (Hz) Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Application Schematic Vin Vo ut Vout Vin O M R 9601 100uF 16V Tantalum SHDN 1.0uF Ceram ic X7R G ND 220uF 6.3V Tantalum G ro und 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. 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 should be connected to GND to insure a safe “off” state. Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Mechanical Outline MO-78AA Base 1 2 3 4 5 Base: GLIDCOP Pins: Copper core, Alloy 52 Seals: Glass Pin Connections Terminal 1 2 3 4 5 Description Vin GND Vout Shutdown No Connection Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Mechanical Outline 8 Lead Flat Pack 8 1 7 2 6 5 3 4 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 1, 2 3 4 5,6 7,8 Description GND Shutdown No Connection Vout Vin Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com OMR9601 Omnirel Part Number OMR9601SCP OMR9601SCH OMR9601SCK OMR9601SFP OMR9601SFH OMR9601SFK 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 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 Also available in non-rad hard versions OM R Omnirel Radiation Hardened/Tolerant 9601 Device X S=Isolated N=Non-Isolated MIL-PRF-38534 Screening Requirements TEST/INSPECTION SCREENING LEVEL Class H Class K (Space Level) Pre Seal Burn-In Optional Optional Nondestructive Bond Pull N/A 100% Internal Visual 100% 100% Temperature Cycle 100% 100% Constant Acceleration 100% 100% Mechanical Shock 100% 100% PIND N/A 100% Pre Burn-In Electrical Optional 100% Burn-In 100% 100% Final Electrical 100% 100% Seal 100% 100% Radiographic N/A 100% External Visual 100% 100% X X Package Screening MIL-STD-883 Method 1030 2023 2017 1010 2001 2002 2020 1015 1014 2012 2009 Rev D, 02/14/2002 205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com