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Электронный компонент: OMR9601SCK

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OMR9601
Rev D, 02/14/2002
205 Crawford Street
Leominster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com
1 M Rad (Si), ULTRA LOW DROPOUT
POSITIVE LINEAR REGULATOR
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 (T
J
=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
C
Power Dissipation, T
C
=25
C
P
TOT
19
W
Thermal Resistance, Junction to Case MO-078AA
R
thJC
6.5
C/W
Thermal Resistance, Junction to Case 8 Lead Flat Pack
R
thJC
6.5
C/W
Operating Temperature
T
j
-55...+125
C
Storage Temperature Range
Ts
-65...+150
C
Block Diagram
(Pin 4)
O
O
Vout
Vin
GND
Shutdown
O
(Pin 1)
(Pin 3)
(Pin 2)
SHDN
Reg.
Control
+3.3Vin to +2.5V Output at 3.0A
In Hermetic Packages
OMR9601
Rev D, 02/14/2002
205 Crawford Street
Leominster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com

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 Range-
Operating
Io= 3.0A
2.9
6.5
V
Line Regulation
3.13
Vin
3.46, Io= 3.0A
2.9
Vin
3.8, Io= 50mA
Vline -100
-5
+100
+5
mV
mV
Load Regulation
Vin= 3.3V
10ma
Iout
3.0A
Vload -20 +20 mV
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
dB
Shutdown source current
Vshdn= 5V
Ishdn
200 uA
Shutdown Pin Threshold
Isource= 200uA
Vshdn
1.0
1.6
V
Output Voltage at
Shutdown
Vin= 3.3V, Io= 50mA,
Shdn= +5.0V
Vout
(shdn)
-0.1 +0.1 V



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
Io= 3.0A
2.9
6.5
V
Line Regulation
3.13
Vin
3.46, Io= 3.0A
2.9
Vin
3.8, Io= 50mA
Vline -150
-150
+150
+150
mV
mV
Load Regulation
Vin= 3.3V
10ma
Iout
3.0A
Vload -150
+150
mV
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
Ishdn
200 uA
Shutdown Pin Threshold
Isource= 200uA
Vshdn
1.0
1.6
V
Output Voltage at Shutdown
Vin= 3.3V, Io= 50mA,
Shdn= +5.0V
Vout
(shdn)
-0.1 +0.1 V




OMR9601
Rev D, 02/14/2002
205 Crawford Street
Leominster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com
Post Radiation Characteristics
High Dose Rate Characteristics (90 Rads(Si)/Sec)
Typical Voltage Output
2.400
2.440
2.480
2.520
2.560
2.600
2.640
2.680
1
10
100
1000
Total Dose Level (krads)
Vout (V)
Conditions:
Vin = 3.3vdc
Iload = 10 m a
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
Typical Bias Current
-1.00
-0.90
-0.80
-0.70
-0.60
-0.50
-0.40
-0.30
-0.20
-0.10
0.00
1
10
100
1000
Total Dose Level (krads)
Ibias (ma)
Conditions:
Vin = 3.3Vdc
Iload = 10 ma
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
OMR9601
Rev D, 02/14/2002
205 Crawford Street
Leominster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com
Post Radiation Characteristics
High Dose Rate Characteristics (90 Rads (Si)/Sec)
Typical Load Regulation
-100.00
-80.00
-60.00
-40.00
-20.00
0.00
20.00
40.00
60.00
80.00
100.00
1
10
100
1000
Total Dose Level (krads)
Load Reg (mv)
Conditions:
3.135vdc - 3.465vdc
Iload = 3.0A
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
Typical Line Regulation
-100.00
-80.00
-60.00
-40.00
-20.00
0.00
20.00
40.00
60.00
80.00
100.00
1
10
100
1000
Total Dose Level (krads)
Line Reg (mv)
Conditions:
3.135vdc - 3.465vdc
Iload = 3.0A
High Dose Rate
90 rad(Si)/sec
(Pre 1000 hr Life Test)
High Dose Rate
90 rad(Si)/sec
(Post 1000hr Life Test)
OMR9601
Rev D, 02/14/2002
205 Crawford Street
Leominster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com
Post Radiation Characteristics
Low Dose Rate Characteristics (0.1 Rads (Si)/Sec)
OMR9601 Ripple Rejection vs. Frequency
0
20
40
60
80
100
120
100
1,000
10,000
100,000
1,000,000
Frequency (Hz)
(db)
3A
1.5A
.75A
.50A
Typical Voltage Output
2.400
2.450
2.500
2.550
2.600
1
10
100
1000
Total Dose Level (krads)
Vout (V)
Conditions:
Vin = 3.3vdc
Iload = 10 ma
Low Dose Rate
0.1 rad(Si)/sec