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
205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com
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
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
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
205 Crawford Street • Leominster MA 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel.com
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