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OMR9601SFH
Datasheet
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OMNIREL OMR9601SCP, OMR9601SFK, OMR9601SFH, OMR9601SCK, OMR9601SFP Datasheet

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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 Symbol Value Unit Output Current Io 3.5 A Input Voltage Vin +7.0 V Lead Temperature Tl 300
19 W
Power Dissipation, TC =25°C Thermal Resistance, Junction to Case – MO-078AA R
Thermal Resistance, Junction to Case – 8 Lead Flat Pack R Operating Temperature Tj -55…+125 Storage Temperature Range Ts -65…+150
P
TOT
thJC
6.5
thJC
6.5
Block Diagram
°C
°C/W °C/W
°C °C
Vin
(Pin 1)
Shutdown
O
(Pin 4)
Rev D, 02/14/2002
Vout
OO
(Pin 3)
Reg.
SHDN
Control
GND
(Pin 2)
OMR9601
ELECTRICAL CHARACTERISTICS (Ta=25°°°°C unless otherwise specified)
Parameter Conditions Symbol Min. Typ. Max Unit
Output Voltage Vin= 3.3V, Io= 3.0A Vout 2.475 2.5 2.525 V
Input Voltage Range­Operating
Line Regulation
Load Regulation Vin= 3.3V
3.13 ≤ Vin ≤ 3.46, Io= 3.0A
2.9 ≤ Vin ≤ 3.8, Io= 50mA
Io= 3.0A 2.9 6.5 V
Vline -100
-5
Vload -20 +20 mV
10ma ≤ Iout ≤ 3.0A
Io= 3.0A. Vout= 2.5V Vdrop 0.4 V
+100
+5
mV mV
Dropout Voltage
Current Limit Vin= 3.3V Short Circuit Isc 3.0 A Ripple Rejection F= 120 Hz., Vout= Vref 65 dB Shutdown source current Vshdn= 5V
Shutdown Pin Threshold Isource= 200uA Vshdn 1.0 1.6 V Output Voltage at Shutdown
ELECTRICAL CHARACTERISTICS (Ta= -55 to +125°°°°C)
Parameter Conditions Symbol Min. Typ. Max Unit
Output Voltage Vin= 3.3V, Io= 3.0A Vout 2.375 2.5 2.625 V Input Voltage Range-
Operating Line Regulation
Load Regulation Vin= 3.3V
Dropout Voltage Io= 3.0A. Vout= 2.5V Vdrop 0.4 V Current Limit Vin= 3.3V Short Circuit Isc 3.0 A Ripple Rejection F= 120 Hz., Vout= Vref 65 B Shutdown source current Vshdn= 5V
Shutdown Pin Threshold Isource= 200uA Vshdn 1.0 1.6 V Output Voltage at Shutdown Vin= 3.3V, Io= 50mA,
Vin= 3.3V, Io= 50mA,
Shdn= +5.0V
Io= 3.0A 2.9 6.5 V
3.13 ≤ Vin ≤ 3.46, Io= 3.0A
2.9 ≤ Vin ≤ 3.8, Io= 50mA
10ma ≤ Iout ≤ 3.0A
Shdn= +5.0V
Ishdn
Vout
(shdn)
Vline -150
Vload -150 +150 mV
Ishdn
Vout
(shdn)
200 uA
-0.1 +0.1 V
+150
-150
200 uA
-0.1 +0.1 V
+150
mV mV
Rev D, 02/14/2002
OMR9601
Post Radiation Characteristics
High Dose Rate Characteristics (90 Rads(Si)/Sec)
Typical Voltage Output
2.680
2.640
2.600
2.560
Vout (V)
2.520
2.480
2.440
2.400 1 10 100 10 00
Total Dose Level (krads)
(Post 1000hr Lif e Te st)
(Pre 1000 hr Lif e Te st)
High Dose Rate
90 rad(Si)/sec
High Dose Rate
90 rad(Si)/sec
Conditions:
Vin = 3.3v d c
Iload = 10 ma
Typical Bias Current
0.00
-0.10
-0.20
-0.30 High Dose Rate
-0.40
-0.50
Ibias (ma)
-0.60
-0.70
-0.80
-0.90
-1.00
1 10 100 1000
Total Dose Level (krads)
90 rad(Si)/sec
(Pre 1000 hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
Conditions:
Vin = 3.3Vdc
Iload = 10 ma
Rev D, 02/14/2002
OMR9601
100.00
80.00
60.00
40.00
20.00
0.00
Load Reg (mv)
-20.00
-40.00
-60.00
-80.00
Post Radiation Characteristics
High Dose Rate Characteristics (90 Rads (Si)/Sec)
Typical Load Regulation
Conditions:
3.135vdc - 3.465vdc Iload = 3.0A
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
-100.00 1 10 100 1000
Total Dose Level (krads)
Typical Line Regulation
100.00
80.00
60.00
40.00
20.00
0.00
-20.00
Line Reg (mv)
-40.00
-60.00
-80.00
-100.00 1 10 100 1000
Total Dose Level (krads)
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
Conditions:
3.135vdc - 3.465vdc Iload = 3.0A
Rev D, 02/14/2002
Post Radiation Characteristics
Low Dose Rate Characteristics (0.1 Rads (Si)/Sec)
Typical Voltage Output
2.600
2.550
OMR9601
2.500
Vout (V)
2.450
2.400 1 10 100 1000
Total Dose Level (krads)
OMR9601 Ripple Rejection vs. Frequency
120 100
80 60
(db)
Low Dose Rate
0.1 rad(Si)/sec
Conditions:
Vin = 3.3vdc
Iload = 10 ma
3A
1.5A .75A .50A
40 20
0
100 1,000 10,000 100,000 1,000,000
Rev D, 02/14/2002
Frequency (Hz)
OMR9601
Application Schematic
Vin Vout
GND
Vout
Ground
1.0uF
Ceramic
X7R
220uF 6.3V
Tantalum
100uF 16V
Tantalum
Vin
OM R9601
SHDN
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
OMR9601
Mechanical Outline MO-78AA
1 2 3 4 5
Base
Base: GLIDCOP Pins: Copper core, Alloy 52 Seals: Glass
Pin Connections
Terminal Description
1 Vin 2 GND 3 Vout 4 Shutdown 5 No Connection
Rev D, 02/14/2002
Mechanical Outline 8 Lead Flat Pack
8 7 6 5
1 2 3 4
OMR9601
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 No Connection 5,6 Vout 7,8 Vin
Rev D, 02/14/2002
Omnirel Part Number Package Description Screening
OMR9601SCP MO-078AA 5 - Lead 100% Final Electrical
OMR9601SCH MO-078AA 5 - Lead Class H per MIL-PRF-38534
OMR9601SCK MO-078AA 5 - Lead Class K per MIL-PRF-38534 OMR9601SFP 8 -Lead Flat Pack 100% Final Electrical OMR9601SFH 8 -Lead Flat Pack Class H per MIL-PRF-38534 OMR9601SFK 8 -Lead Flat Pack Class K per MIL-PRF-38534
Also available in non-rad hard versions
OMR9601
OM
R 9601 X X X
Omnirel Radiation Device S=Isolated Package Screening Hardened/Tolerant N=Non-Isolated
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
Rev D, 02/14/2002
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