MHL8701
MHL8705
Levels Available
MHL8701 / MHL8705
SET Free 3 Amp & 5 Amp ULDO Regulators
DESCRIPTION
COTS
MILITARY
SPACE
The MHL8701 & MHL8705 are space qualified, very low dropout linear regulators
designed for military and space flight applications. The MHL8701 is designed for a
maximum output current of 3 A. The MHL8705 is designed for higher current operation
with a maximum out current rating of 5 A. Assembled in a hermetic package, these
products provide an very low drop out voltage of 400 mV @ 2 A and a maximum dropout
voltage of 0.6 5V at 4 A. They are optimized for operation at +5 V input or +3.3 V input
depending on the suffix ordered. In addition to having excellent TID capability, these
linear regulators are designed to also provide additional Single-Event capability with the
addition of a L-C filter at the output of the regulator. The resulting SET performance
provides a significant improvement versus competing Rad-Tolerant regulators in this
market.
Important:
For the latest information, visit our website
http://www.microsemi.com.
Actual package
appearance may vary
FEATURES
•
•
•
•
•
•
•
•
Output is SET reduced for heavy ions (Note
1).
(See
Figure 6)
Rad-Tolerant to 300 K rad TID (Note
1).
Ultra Low Dropout Voltage – 400 mV @ 2.0 A.
Space level screening available.
Shutdown pin for output control.
Thermal Shutdown @ 150 °C.
Optimized for operation at an input voltage of 3.3 V or 5 V.
Available in fixed or adjustable outputs.
APPLICATIONS / BENEFITS
•
Eliminated or reduced output transients due to SEE.
Table 1 – ABSOLUTE MAXIMUM RATINGS @ Tc = +25°C unless otherwise noted
Parameters / Test Conditions
DC input Voltage Vin-Vground
Output Current
Power Dissipation Tcase = 25°C
Thermal Resistance, Junction to Case
Storage Temperature
Operating Temperature Range
Maximum Soldering Temperature, 10 sec.
Symbol
V
in
I
o
P
d
R
θJC
T
stg
T
j
T
solder
Value
(3A Version) (5A Version)
10.0
3.3
25
3.0
-65 to +150
-55 to +125
300
10.0
5.25
25
3.0
-65 to +150
-55 to +125
300
Unit
V
A
W
°C/W
°C
°C
°C
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
1-800-446-1158
(978) 620-2600
Fax: (978) 689-0803
Website:
www.microsemi.com
MECHANICAL and PACKAGING
•
See
Figure 5
for package outlines and lead bend options.
T4-LDS-0196 Rev. 5 (7/29/13)
©2013 Microsemi Corporation
Page 1 of 10
MHL8701
MHL8705
Table 2 – ELECTRICAL CHARACTERISTICS @ T
A
= -55°C to +125°C unless otherwise noted
(Measured at Vo = Vref and a load of 1 A unless otherwise specified)
(Nominal reference voltage is 1.265V @ 25°C)
Parameters / Test Conditions
Output Voltage Accuracy, Adjustable Units
(Note 5)
Output Voltage Accuracy, Fixed Voltage Units
(Note 5)
Dropout Voltage
Iout = 2.0A, ∆Vo
≤
2% @ Vo ≥ 2.5V
Dropout Voltage
Iout = 4.0A, ∆Vo
≤
2% @ Vo ≥ 2.5V
Shutdown Input threshold
Vout < 0.5V,
(Note 3)
Symbol
(3A Version)
Min.
1.24
Typ
1.265
Max.
1.29
(5A Version)
Min.
1.24
Typ
1.265
Max.
1.29
Unit
Vout
V
Vout
-3.0
+3.0
-3.0
+3.0
%
Vdrop
0.40
N/A
V
(Note 3)
Vdrop
N/A
0.65
V
(Note 2)
Vshdn
Vin
(+3.3)
Vin
(+5.0)
PSR
1.0
1.6
1.0
1.6
V
Input Voltage Range: +3.3V Units
(Note 5)
Iout = 1.5A or 2.5A as appropriate, ∆Vo
≤
2%
Input Voltage Range: +5.0V Units
(Note 5)
Iout = 1.5A or 2.5A as appropriate, ∆Vo
≤
2%
Ripple Rejection
Vin = 3.3V or 5V as appropriate
(Note 7)
Vr = 500mVpp; 1KHz < f < 10kHz, Iout = 100mA
Current Limit
T
A
= 25°C
Vout = 2.5V or V
fixed
as appropriate
3.0
3.6
3.0
3.6
V
4.5
5.5
4.5
5.5
V
-20
-20
dB
I
latch
3.3
5.25
9
A
Notes on
page 5
T4-LDS-0196 Rev. 5 (7/29/13)
©2013 Microsemi Corporation
Page 2 of 10
MHL8701
MHL8705
Table 3 – POST-RADIATION (Notes 1, 4, 8) T
A
= 25°C
Parameters / Test Conditions
Output Voltage Accuracy, Adjustable Units
Vin = 3.3V or 5V as appropriate
(Note 5, 6, 8)
Symbol
(3A Version)
Min.
-100
Typ
±25
Max.
+100
(5A Version)
Min.
-100
Typ
±25
Max.
+100
Unit
Vout
mV
Output Voltage Accuracy, Fixed Voltage Units
(Note 5, 6)
Dropout Voltage
(Note 3)
Iout = 2.0A, Vout = +2.5V, ∆Vo
≤
2% @ Vo ≥ 2.5V
Dropout Voltage
(Note 3)
Iout = 4.0A, Vout = +2.5V, ∆Vo
≤
2% @ Vo ≥ 2.5V
Current Limit
Vout = 2.5V or V
fixed
as appropriate
Vin = 3.3V or 5V as appropriate
Shutdown Input threshold
(Note 2)
Vout < 0.5V, Vin = 3.3 or 5V as appropriate
Notes on
page 5
Vout
-8.0
±6.6
+8.0
-8.0
±6.6
+8.0
%
Vdrop
0.45
N/A
V
Vdrop
N/A
0.65
V
Ilatch
3.3
5.25
9
A
Vshdn
1.0
1.65
1.0
1.65
V
T4-LDS-0196 Rev. 5 (7/29/13)
©2013 Microsemi Corporation
Page 3 of 10
MHL8701
MHL8705
Table 4 – MODEL NUMBER FUNCTIONAL CHART
ADJUSTABLE OUTPUT
VOLTAGE MODEL #’S
MHL8701A3xy
MHL8705A3xy
MHL8701A5xy
MHL8705A5xy
Input Voltage
I
out
Range
V
out
Range
3.3 V
3.3 V
5.0 V
5.0 V
0–3A
0–5A
0–3A
0–5A
1.265 – 2.5 V
1.265 – 2.5 V
1.265 – 3.3 V
1.265 – 3.3 V
Examples of Model Number
with Fixed Output Voltage
MHL8701F325xy
MHL8705F320xy
MHL8701F530xy
MHL8705F533xy
Input Voltage
3.3 V
3.3 V
5.0 V
5.0 V
I
out
Range
0–3A
0–5A
0–3A
0–5A
Output Voltage
2.5 V
2.0 V
3.0 V
3.3 V
Replace “x” with letter to denote required screening level
C = COTS
M = MILITARY
S = SPACE
Replace “y” with lead lend option
= No lead bend
-1 = SMT lead bend
-2 = lead bend down
-3 = lead bend up
-4 = lead bend up (long)
T4-LDS-0196 Rev. 5 (7/29/13)
©2013 Microsemi Corporation
Page 4 of 10
MHL8701
MHL8705
Table 5 – SCREENING OPTIONS
TESTS
100% Non-Destruct Wire-Pull
Pre-Cap Visual
Temperature Cycle
Constant Acceleration
PIND
Pre-Burn-In Electrical (T
A
= 25°C)
Burn-In
Final Electrical
Hermeticity (Fine & Gross Leak)
X-Ray (Note 10)
External Visual
SCREENING LEVELS
COTS
MILITARY
SPACE
Commercial
MIL-PRF-38534 Equivalent
N/A
N/A
100%
N/A
N/A
N/A
N/A
N/A
N/A
100% (25°C)
100%
N/A
Sample
100%
100%
100%
N/A
100%
100%
(160 hours)
100%
100%
N/A
100%
100%
100%
100%
100%
100%
100%
(320 hours)
100%
100%
100%
100%
MIL-STD-883
METHOD
2023
2017
1010
2001
2020
-
1015
1014
2012
2009
NOTES:
1. Certified to Appendix G of MIL-PRF-38534 for Radiation Hardness Assurance (RHA) requirements for Hybrid
Microcircuits and Multichip Modules effective June 27, 2013. (See
RHA Test Laboratory Suitability)
2. Shutdown pin voltage must be > 1.6 V to initiate output inhibit or reset. Pin should be grounded if not used.
Pin input voltage can exceed supply voltage.
3. Actual voltage dropout is affected by device operating point. Minimum operating input voltage is 2.9 V. As a
result, the dropout specification applies to output voltage of 2.5 V and higher.
4. Radiation testing is per MIL-STD-883, Method 1019.
5. These regulators are optimized for specific Input Voltage ranges. The 3 volt input types will have peak
performance at +3.0 V to +3.6 V. The 5 volt input types will have peak performance at +4.5 V to +5.5 V.
Input voltages outside of this range can affect short-circuit current, load current capability and create electrical
overstress to internal components.
6. Typical post 100 K Rad ELDRS radiation performance in the powered mode is <+/-5%. Typical unpowered
performance is +/- 6.6%.
7. Guaranteed by design but not tested.
8. Measured at Vo = Vref and a load of 1 A (unless otherwise specified).
9. SET free is defined as output transients less than ±5% of output voltage when exposed to heavy ions.
10. Performed at a DLA approved facility.
T4-LDS-0196 Rev. 5 (7/29/13)
©2013 Microsemi Corporation
Page 5 of 10
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