MHP8565A
(Formerly SAT8565 Series)
(Consult Table 3 for Part Number Designations)
MHP8565A
SINGLE 3 Amp POINT-OF-LOAD SWITCHING REGULATOR
(MIL-PRF- 38534 Certified Facility)
DESCRIPTION
Levels Available
COTS
MILITARY
SPACE
The MHP series are non-isolated Point of Load switching regulators for high reliability
Military and Space distributed power applications. Fully integrated, these include a
buck controller, inductor, and input / output capacitors combined in a single package.
They operate from an input voltage of +4.5V to +12V (See Note 1), providing step
down power conversion to output voltages as low as 0.5V or lower (See Note 2).
Operating features include output voltage adjust, output current limit, and output
enable/disable. Careful design and layout ensure excellent stability, transient
response, and low noise operation. Packaged in a compact metal case, it operates
over the full -55°C to +125°C temperature range.
Important:
For the latest information, visit our website
http://www.microsemi.com.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
MO-078
(MHP8565)
Now available as SMD: 5962R1323601xxx
Single 3 Amp product (Note 2)
Efficiencies to 87%, see Figure 8
Radiation Hard to 100K rad TID
Single- Event results show no significant output transients through an LET of 58
MeV/(mg/cm
2
)
Optimized for 5V input. Consult factory for higher input voltages. (Note 1)
Operates down to 4.5 Volts input
Current Mode Control
Adjustable output Voltage between 0.5V and 4V (depends on model, see table 3) (Note 2)
Enable function available
Operates at a nominal frequency of 500KHz
APPLICATIONS / BENEFITS
•
•
•
More efficient than competitive POLs (See Figure 7).
FPGA power supply – satellite
ASIC power supply – satellite
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
1-800-446-1158
(978) 620-2600
Fax: (978) 689-0803
Website:
www.microsemi.com
T4-LDS-0256 Rev. 9 (08/28/2019)
©2016 Microsemi Corporation
Page 1 of 12
MHP8565A
(Formerly SAT8565 Series)
(Consult Table 3 for Part Number Designations)
Table 1 – ABSOLUTE MAXIMUM RATINGS (Tc
= +25°C unless otherwise note)
Parameters / Test Conditions
Input Voltage (Note 1)
Output Current (Note 2)
Enable Input Voltage
Approximate Weight
Operating Temperature Range, Base of Package
Storage Temperature Range
THERMAL CHARACTERISTICS
Parameters / Test Conditions
Series Switch
Thermal Resistance, Junction-to-Case, MO-78 package
Symbol
V
in
Io
V
en
MO-078
T
c
T
stg
Value
16
4
7
10
-55 to +125
-65 to +150
Unit
Vdc
A
Vdc
Grams
°C
°C
Symbol
R
θJC
Value
2.5
Unit
°C/W
MECHANICAL and PACKAGING
•
See Figures 2 through 5, and Table 6.
T4-LDS-0256 Rev. 9 (08/28/2019)
©2016 Microsemi Corporation
Page 2 of 12
MHP8565A
(Formerly SAT8565 Series)
(Consult Table 3 for Part Number Designations)
Table 2 – ELECTRICAL CHARACTERISTICS (See Note 5)
(T
A
= -55°C to +125°C unless otherwise noted)
Parameters / Test Conditions
Minimum input Voltage
Output Voltage Accuracy
Vo = 1.21V
Post 100K Irradiation, 25°C
Line regulation
4.5V < Vin < 5.5V
Vo = 1.21V
Load regulation
1A < Iout < 2A
Current Limit
Vo = 2.5V
(Note 8)
Symbol
Vin(min)
Vout
Vout
Min.
4.5
1.19
1.17
Value
Nom
Max.
Unit
V
1.23
1.24
V
V
Kvi
-0.5
+0.5
%
Kvo
-1
3.5
5
+1
%
I
CL
Post 100K Irradiation, 25°C
Input Voltage on Enable pin to guarantee shutdown
Io = 0A
(Note 4)
Vshdn
3.0
0.13
0.40
0.60
A
V
T4-LDS-0256 Rev. 9 (08/28/2019)
©2016 Microsemi Corporation
Page 3 of 12
MHP8565A
(Formerly SAT8565 Series)
(Consult Table 3 for Part Number Designations)
Table 3 – MODEL NUMBER FUNCTIONALITY CHART
PACKAGE TYPE OUTPUT TYPE
MODEL NUMBER
NOTES
OTHER FUNCTIONALLTY
Output
Voltage
Range
Note 2
Note 8
FORMER P/N
MO-078
Adj
Enable
Pin
Parallelable
Note A
Package
Body
Internal
Compensation
MHP8565A$&*
3 Amp Series
NO
0.5 – 4V
Isolated
SAT8565A-3$T-ADJ
Replace “$” with letter to denote required screening level
C = COTS
M = MIL-PRF-38534, Class H
S = MIL-PRF-38534, Class K
Replace “&” with lead lend option
Blank = No lead bend
-1 = SMT lead bend
-2 = lead bend down
-3 = lead bend up
Replace “*” with lead finish option
C = Gold plate
A = Solder dipped
NOTE: See DSCC SMD 5962-13236 for DSCC part number options.
Example SMD Part Numbers
Standard Microcircuit Drawing
Microsemi Similar Part (1)
5962R1323601KUC
MHP8565ASC
5962R1323601KUA
MHP8565ASA
5962R1323601KXC
MHP8565AS-1C
5962R1323601KXA
MHP8565AS-1A
5962R1323601KYC
MHP8565AS-2C
5962R1323601KYA
MHP8565AS-2A
5962R1323601KZC
MHP8565AS-3C
5962R1323601KZA
MHP8565AS-3A
The SMD number shown is for Class K screening and radiation
hardness level R. See the SMD 13236 for the numbers for other
screening and radiation levels. For exact specifications for an SMD
product, refer to the SMD drawing. SMD’s can be downloaded from
the DLA Land and Maritime website.
NOTE (1): Do not use the Microsemi similar part number to order the
SMD device.
T4-LDS-0256 Rev. 9 (08/28/2019)
©2016 Microsemi Corporation
Page 4 of 12
MHP8565A
(Formerly SAT8565 Series)
(Consult Table 3 for Part Number Designations)
Table 4 – SCREENING OPTIONS
MILITARY=
SPACE=
Class H
Class K
MIL-PRF-38534
Military
Sample
100%
100%
100%
N/A
100%
100%
(160 Hours)
100%
100%
N/A
100%
Space
100%
100%
100%
100%
100%
100%
100%
(320 Hours)
100%
100%
Yes
100%
TEST
Element Evaluation
Non-Destruct Wirebond Pull
Pre-Cap Visual
Temperature Cycle
Constant Acceleration
PIND
Pre-Burn In Electrical
Burn-In
Final Electrical Tests
Hermeticity (Fine and Gross Leak)
X-Ray (Note 10)
External Visual
NOTES:
COMMERCIAL
COTS
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
100% (25°C)
100%
N/A
Sample
MIL-STD-883
Method
Note 9
2023
2017
1010
2001
2020
1015
Note 9
1014
2012
2009
1. Most internal components are rated at +16 Volts maximum, and are therefore properly de-rated for operation at a
nominal input of +5 Volts. Operation at +12V will decrease that de-rating.
2. Internal series switch is self- protected and is rated to conduct 4.0 Amps minimum. However, limitations on
internal components plus the characteristics of PWM operation conspire to reduce further the minimum available
output current, especially at output Voltages above Vin/2. Minimum available output current is guaranteed to be
as specified at output Voltage of 2.5 V down to 1.21 V, assuming a clean layout. At output Voltages below 1.21
V, maximum output current may reduce by up to 1 Amp, depending on actual output Voltage, and load regulation
may degrade slightly (up to 1%). At 3.3 V output with a 5 V input, output current reduces by 0.5 A from the value
specified at 2.5 V out.
3. Microsemi has a MIL-PRF-38534 qualified radiation hardness assurance program.
4. If not used, or when on, the Enable pin should be pulled up to a logic one (2.5V min, 7V max) through a resistor of
no more than 5K Ohms. Voltage on this pin to disable operation needs to be less than 0.13V.
5. Testing is accomplished at an output load of 1A, and at an output Voltage of 2.5V and an input of 5V unless
otherwise specified. Only the specifications with post irradiation limits are tested after radiation exposure.
6. All package outline dimensions are in inches.
7. Consult factory for operation at output voltages below 1.0V. Also see Figure 6.
8. Minimum input voltage is guaranteed by line regulation test.
9. Microsemi is a DLA approved facility. Testing is performed per MIL-PRF-38534.
10. Maximum solder reflow temperature = 180 °C. Do not exceed
11. The internal case temperature must not exceed 175 °C.
T4-LDS-0256 Rev. 9 (08/28/2019)
©2016 Microsemi Corporation
Page 5 of 12
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