LINER RH1083M

RH1083M
7.5A Low Dropout
Positive Adjustable Regulator
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DESCRIPTIO
ABSOLUTE
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Unlike PNP regulators, where up to 10% of the output
current is wasted as quiescent current, the RH1083M
quiescent current flows into the load, increasing efficiency.
Since the TO-3 package on this product cannot meet the
cracked glass external visual criteria of MIL-STD-883
Method 2009, inspection for cracked glass at 100% external visual will not be performed. Instead a 100% fine/gross
leak test will be performed just prior to shipment.
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The RH1083M is pin compatible with older 3-terminal
regulators. A 10μF output capacitor is required on this new
device. However, this is usually included in most regulator
designs.
The wafer lots are processed to Linear Technology
Corporation’s in-house Class S flow-to-yield circuits usable in stringent military applications.
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The RH1083M positive adjustable regulator is designed to
provide 7.5A with higher efficiency than currently available devices. All internal circuitry is designed to operate
down to 1V input-to-output differential and the dropout
voltage is fully specified as a function of load current.
Dropout is guaranteed at a maximum of 1.5V at maximum
output current, decreasing at lower load currents. On-chip
trimming adjusts the output voltage to 1%. Current limit is
also trimmed, minimizing the stress on both the regulator
and power source circuitry under overload conditions.
RATI GS
Power Dissipation .............................. Internally Limited
Input-to-Output Voltage Differential ........................ 30V
Operating Junction Temperature Range
Control Circuitry ............................ – 55°C to 150°C
Power Transistor ........................... – 55°C to 200°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................ 300°C
, LTC and LT are registered trademarks of Linear Technology Corporation.
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PACKAGE I FOR ATIO
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BUR -I CIRCUIT
BOTTOM VIEW
VIN
RH1083M
18V
IN
OUT
2
CASE
IS OUTPUT
ADJ
121Ω
–18V
1
1k
ADJ
CAPACITOR(S) NOT SHOWN
RH1083 BI
K PACKAGE
2-LEAD TO-3 METAL CAN
(STEEL)
1
RH1083M
TABLE 1: ELECTRICAL CHARACTERISTICS
PARAMETER
Reference Voltage
CONDITIONS
IOUT = 10mA, (VIN – VOUT) = 3V
NOTES
3
MIN
(Preirradiation)
TJ = 25°C
TYP MAX
SUB- –55°C ≤ TJ ≤ 125°C SUBGROUP MIN TYP MAX
GROUP
1.238 1.250 1.262
1
10mA ≤ IOUT ≤ IFULLLOAD,
1.5V ≤ (VIN – VOUT) ≤ 25V
Line Regulation
ILOAD = 10mA
1.5V ≤ (VIN – VOUT) = 15V
15V ≤ (VIN – VOUT) = 30V
Load Regulation
(VIN – VOUT) = 3V
10mA ≤ IOUT ≤ IFULLLOAD
Dropout Voltage
ΔVREF = 1%, IOUT = IFULLLOAD
Current Limit
(VIN – VOUT) = 5V
(VIN – VOUT) = 25V
Minimum Load Current
(VIN – VOUT) = 25V
Thermal Regulation
TA = 25°C, 30ms Pulse
Ripple Rejection
f = 120Hz, CADJ = 25μF,
COUT = 25μF Tantalum,
IOUT = IFULLLOAD (VIN – VOUT) = 3V
1,2
0.015
1,2,3
0.1
0.2
0.5
4
TA = 125°C, 1000 Hours
RMS Output Noise
(% of VOUT)
TA = 25°C, 10Hz ≤ f ≤ 10kHz
Thermal Resistance
Junction-to-Case
Control Circuitry
Power Transistor
0.2
0.4
2,3
%
1.5
2,3
V
2,3
2,3
A
A
2,3
mA
9.5
1.0
5.0
10
1
120
1
5
1
0.003
8.0
0.4
1
4
%/W
60
75
0.2
5,6
dB
120
2,3
μA
5.0
2,3
μA
0.5
%
0.3
%
%
5
5
0.6
1.6
TOTAL DOSE BIAS CIRCUIT
15V
VIN
VOUT
150Ω
–15V
2
%
%
1.3
60
ADJ
2,3
2,3
0.2
0.5
1
0.002 0.010
RH1083
0.035
0.05
1
Temperature Stability
Long-Term Stability
V
0.3
10
55
2,3
1
1
1
1
Adjust Pin Current Change 10mA ≤ IOUT ≤ IFULLLOAD,
1.5V ≤ (VIN – VOUT) ≤ 25V
V
1.225 1.250 1.270
1.5
8.0
0.4
Adjust Pin Current
UNITS
RH1083 TDBC
°C/W
°C/W
RH1083M
TABLE 1A: ELECTRICAL CHARACTERISTICS
(Postirradiation)
PARAMETER
CONDITIONS
10KRAD(Si)
MIN
MAX
20KRAD(Si)
MIN
MAX
50KRAD(Si)
MIN
MAX
Reference Voltage (Note 3)
IOUT = 10mA (VIN – VOUT) = 3V
1.234
1.258
1.232
1.257
1.227
1.253 1.223
1.247
1.216
1.241
V
10mA ≤ IOUT ≤ IFULLLOAD
1.5V ≤ (VIN – VOUT) ≤ 15V
1.210
1.275
1.219
1.275
1.215
1.275 1.210
1.275
1.203
1.275
V
Line Regulation (Notes 1, 2)
Load Regulation (Notes 1, 2, 3)
IOUT = 10mA
1.5V ≤ (VIN – VOUT) ≤ 15V
15V ≤ (VIN – VOUT) ≤ 30V
(VIN – VOUT) = 3V
10mA ≤ IOUT ≤ IFULL LOAD
Dropout Voltage (Note 4)
ΔVREF = 1%, IOUT = IFULL LOAD
Current Limit
(VIN – VOUT ) = 5V
(VIN – VOUT ) = 25V
Minimum Load Current
(VIN – VOUT ) = 25V
Adjust Pin Current Change
(Note 5)
200KRAD(Si)
MIN
MAX UNITS
0.2
0.5
0.21
0.5
0.23
0.5
0.25
0.5
0.3
0.5
%
%
0.3
0.3
0.3
0.35
0.4
%
1.5
8
0.4
Adjust Pin Current
100KRAD(Si)
MIN
MAX
1.55
8
0.4
1.65
7.95
0.4
1.8
7.85
0.4
2.0
7.75
0.4
V
V
V
10
10
10
10
10
mA
120
120
120
120
120
μA
5
5
5
5
5
μA
10mA ≤ IOUT ≤ IFULLLOAD
1.5V ≤ (VIN – VOUT) ≤ 15V
Note 1: See thermal regulation specifications for changes in output voltage
due to heating effects. Line and load regulation are measured at a constant
junction temperature by low duty cycle pulse testing.
Note 2: Line and load regulation are guaranteed up to the maximum power
dissipation of 60W for RH1083M. Power dissipation is determined by the
input-to-output differential voltage and the output current. Guaranteed
maximum power dissipation will not be available over the full input-tooutput voltage range.
Note 3: IFULL LOAD is defined in the current limit curves in the standard
data sheet. IFULLLOAD curve is defined as the minimum value of current
limit as a function of input-to-output voltage. Note that the 60W power
dissipation for the RH1083M is achievable over a limited range of input-tooutput voltage. For compliance with 883 revision C current density
specifications, the RH1083M is rated for 5A.
Note 4: Dropout voltage is specified over the full output current range of
the device. Test points and limits are shown on the Dropout Voltage curve
in the standard data sheet.
Note 5: Guaranteed by design, characterization, or correlation to other
tested parameters.
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TABLE 2: ELECTRICAL TEST REQUIRE E TS
MIL-STD-883 TEST REQUIREMENTS
SUBGROUP
Final Electrical Test Requirements (Method 5004)
1*,2,3
Group A Test Requirements (Method 5005)
1,2,3
Group C and D End-Point Electrical Parameters
(Method 5005)
1,2,3
* PDA Applies to subgroup 1. See PDA Test Notes.
PDA Test Notes
The PDA is specified as 5% based on failures from group A, subgroup 1,
tests after cooldown as the final electrical test in accordance with method
5004 of MIL-STD-883 Class B. The verified failures of group A, subgroup
1, after burn-in divided by the total number of devices submitted for burnin in that lot shall be used to determine the percent for the lot.
Linear Technology Corporation reserves the right to test to tighter limits
than those given.
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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RH1083M
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TYPICAL PERFORMANCE CHARACTERISTICS
Reference Voltage
Ripple Rejection
1.26
10mA ≤ Δ ≤ IOUT ≤ IFULLLOAD
1.5V ≤ (VIN – VOUT) ≤ 15V
10.0
(VIN – VOUT) = 3V
IOUT = IFULLLOAD
100
1.24
1.23
(VIN – VOUT) = 5V
9.5
95
CURRENT LIMIT (A)
1.25
RIPPLE REJECTION (dB)
REFERENCE VOLTAGE (V)
Current Limit
105
90
85
80
9.0
8.5
75
70
1
10
100
TOTAL DOSE – Krad (Si)
8.0
65
1000
1
10
100
TOTAL DOSE – Krad (Si)
RH1083 G01
Current Limit
Line Regulation
1.5V ≤ (VIN – VOUT) ≤ 15V
IOUT = 10mA
0.7
1
10
100
TOTAL DOSE – Krad (Si)
1000
LOAD REGULATION (%)
0.8
(VIN – VOUT) = 3V
10mA ≤ IOUT = 7.5A
0.2
LINE REGULATION (%)
CURRENT LIMIT (A)
Load Regulation
0.2
(VIN – VOUT) = 25V
0.9
0.1
0
–0.1
1
10
100
TOTAL DOSE – Krad (Si)
RH1083 G04
1000
0.1
0
–0.1
–0.2
Dropout Voltage
Adjust Pin Current
Minimum Load Current
ADJUST PIN CURRENT (μA)
(VIN – VOUT) = 3V
10mA ≤ IL ≤ IFULLLOAD
1.2
1.0
(VIN – VOUT) = 25V
70
60
50
40
1
10
100
TOTAL DOSE – Krad (Si)
1000
RH1083 G07
1000
4
IOUT = 7.5A
1.4
10
100
TOTAL DOSE – Krad (Si)
RH1083 G06
80
1.6
1
RH1083 G05
1.8
1000
RH1083 G03
0.3
1.0
10
100
TOTAL DOSE – Krad (Si)
RH1083 G02
1.1
DROPOUT VOLTAGE (V)
1
1000
MINIMUM LOAD CURRENT (mA)
1.22
3
2
1
0
1
10
100
TOTAL DOSE – Krad (Si)
1000
RH1083 G08
1
10
100
TOTAL DOSE – Krad (Si)
1000
RH1083 G09
I.D. No. 66-11-1083 0796
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Linear Technology Corporation
LT/HP 500 0796 • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● TELEX: 499-3977
© LINEAR TECHNOLOGY CORPORATION 1996