TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
SINGLE and QUAD 3 Amp & 4 Amp
POL REGULATORS
DEVICES
LEVELS AVAILABLE
MHP Series
(Formerly SAT8564 / SAT8565 / SAT8566 Series)
(Consult Table 3 for Part Number Designations)
COTS
CLASS H
CLASS K
FEATURES
Smallest footprint in the Space Industry
Single 3 Amp and Single & Quad 4 Amp product (Note 1)
Efficiencies to 85%
Radiation Hard to 300K rad TID (Note 9)
SE results show no significant output transients through an LET of 58 MeV/(mg/cm
2
)
Both tabbed and tabless packages available
Optimized for 5V input. Consult factory for inputs up to 16V (Note 2)
Operates down to 4.3 Volts
Current Mode Control
Adjustable output Voltage between 0V and 4V (depends on model, see table 3)
Parallelable models available (See Table 3)
Synchronizable models available (See Table 3)
Enable function available
Soft start capable (See Figure 16)
Operates at a nominal frequency of 500KHz
DESCRIPTION
The MHPS 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 +16V, providing step down power
conversion to output voltages as low as 0V. Operating features include output voltage adjust, output current limit,
enable, external synchronization and soft start. Some models can also be setup in a parallel configuration to increase
output current capability and reduce noise on the input supply. Careful design and layout ensure excellent stability,
transient response, and low noise operation. Packaged in compact metal cases, they operate over the full -55°C to
+125°C temperature range.
T4-LDS-0117 Rev. 9 (110370)
Page 1 of 17
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
SINGLE and QUAD 3 Amp & 4 Amp
POL REGULATORS
Table 1 – ABSOLUTE MAXIMUM RATINGS (Tc
= +25°C unless otherwise note)
Parameters / Test Conditions
Input Voltage (Note 2)
Enable Input Voltage
Sync Input Voltage
Symbol
V
in
V
en
V
sync
Tabless
MO-078
Approximate Weight
MO-078
SIP
Flat Pack
Operating Temperature Range, Base of Package
Storage Temperature Range (<100 hrs cumulative)
Storage Temperature Range
THERMAL CHARACTERISTICS
Parameters / Test Conditions
Thermal Resistance, Junction-to-Case, MO-078 package
Thermal Resistance, Junction-to-Case, SIP
Thermal Resistance, Junction-to-Case Flat Pack
Symbol
R
θJC
R
θJC
R
θJC
Value
2.5
5
4.5
Unit
°C/W
°C/W
°C/W
T
c
T
stg
T
stg
Value
16
7
7
8
10
11
75
-55 to +125
-65 to 150
-65 to 125
Unit
Vdc
Vdc
Vdc
Grams
Grams
Grams
Grams
°C
°C
°C
T4-LDS-0117 Rev. 9 (110370)
Page 2 of 17
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
SINGLE and QUAD 3 Amp & 4 Amp
POL REGULATORS
Table 2 – ELECTRICAL CHARACTERISTICS (See notes on page 4)
(T
A
= -55°C to +125°C unless otherwise noted)
Parameters / Test Conditions
Minimum input Voltage
Io = 2.5A
Output Voltage Accuracy
Vo = 1.21V
Line regulation
4.5V < Vin < 6V
Vo = 1.21V
Load regulation
1A < Iout < 3A (2A for MHP8565)
Synchronizing range
10% < Duty cycle < 90%
Sync threshold
Symbol
Vin(min)
(Note 5)
(Note 5)
Kvi
(Notes 5, 10)
(Note 6)
(Note 6)
Kvo
Fsync
Vsync
Isc
rr
Ishdn
Vshdn
Vout
Min.
4.5
-1.65
-0.5
-1
580
Value
Nom
Max.
Unit
V
+1.65
+0.5
+1
1000
1.5
6
2.2
%
%
%
KHz
V
A
dB
Short Circuit Current Limit
Vo = 2.5V
Ripple Rejection
(Note 7)
F = 120Hz, Iout = 50mA
Enable pin current in shutdown mode
Venable = 0V
Input Voltage on Enable pin to guarantee shutdown
(Note 4)
Singles
Operating Frequency
Quad
55
-75
0.13
0.40
500
0.60
uA
V
f
667
KHz
T4-LDS-0117 Rev. 9 (110370)
Page 3 of 17
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
SINGLE and QUAD 3 Amp & 4 Amp
POL REGULATORS
Table 3 – MODEL NUMBER FUNCTIONALITY CHART
PACKAGE TYPE
MODEL NUMBER
NOTES
MO-078
SIP
Flat
Pack
OUTPUT TYPE
Remote
Adj Fixed
Sense
Note C
Note C
OTHER FUNCTIONALLTY
Internal
Output
Package
Enable Parallelable
Compen-
Volt
Body
Pin
Note A
sation
Range
1.21–4V
NO
Note D
Note D
Note D
1.21–4V Ground
1.21–4V
1.21–4V
1.21–4V
1.21–4V
0–4V
NO
FORMER P/N
MHP8565A$&
MHP8565P$&
MHP8564A$&
MHP8564F$&
MHP8564R$&
MHP8564S$&
MHP8566A$&
3 Amp Series
3 Amp Series
4 Amp Series
4 Amp Series
4 Amp Series
4 Amp Series
Quad 4 Amp
SAT8565A-3$T-ADJ
SAT8565P-3$T-ADJ
SAT8564A-4$F-ADJ
SAT8564F-4$F-x.y
SAT8564R-4$F-x.y
SAT8564S-4$F-ADJ
SAT8566A-15$F-ADJ
Replace “$” with letter to denote required screening level
NOTE A: Parallelable devices have a synchronizing pin so
C = COTS
that units can be driven out of phase from each other for the
H = CLASS H
purpose of input and output Voltage Bus ripple reduction.
K = CLASS K
Other functions necessary for Paralleling are also available
Replace “&” with lead lend option
= No lead bend
-1 = SMT lead bend
-2 = lead bend down
-3 = lead bend up
NOTE C: Fixed and remote sense part numbers must be
appendaged with fixed value of output Voltage. Example:
MHP8564F$&-1.8 for a 1.8V fixed output.
NOTE D: Sync PIN is available. Other functions necessary
for Paralleling are not available.
Products in shaded areas of the main chart are under development
T4-LDS-0117 Rev. 9 (110370)
Page 4 of 17
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
SINGLE and QUAD 3 Amp & 4 Amp
POL REGULATORS
Table 4 – SCREENING OPTIONS
C
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
External Visual
Certified
NOTES:
1. Internal series switch is self protected and is rated to conduct 4.5 Amps minimum. However, limitations on
internal components plus the characteristics of PWM operation conspire to reduce further the minimum output
current available, especially at output Voltages above Vin/2. Minimum available output current is guaranteed
to be as specified (3 Amps or 4 Amps, depending on model number) at output Voltages of 2.5V and below,
assuming a clean layout. At 3.3V output with a 5V input, reduce available minimum output current by 0.5
Amp.
2. Internal components are rated at +16 Volts maximum, and are therefore properly derated for operation at an
input of +5 Volts (minimum of 4.3V). For use at inputs as high as +12 – 15 Volts, please consult factory about
your derating requirements for a possible component change to allow properly derated operation.
3. Microsemi does not at this time have a MIL-PRF-38534 qualified radiation hardness assurance program.
4. If not used, or when on, 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 0.4V.
5. Dynamic testing is accomplished at an output load of 1A, and at an output Voltage of 2.5, UOS.
6. Synchronizing pin, if available (see model chart) must be grounded if not used. Consult factory when
contemplating use of frequencies above 700 kHz. Pin input impedance is 40K Ohms.
7. Guaranteed by design.
8. All package outline dimensions are in inches.
9. Sequencer section of the Quad Device is rated at 100K RAD. POLs still operate without sequencer.
10. Output Voltage of 1.21V for MHP8566.
T4-LDS-0117 Rev. 9 (110370)
Page 5 of 17
Cots
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
100% (25°C)
100%
N/A
Sample
N/A
H
K
Equivalent MIL-PRF-38534
(Note 3)
Class H
Class K
Sample
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
(160 Hours)
(320 Hours)
100%
100%
100%
100%
N/A
Yes
100%
100%
Yes
Yes
MIL-STD-
883
Method
2023
2017
1010
2001
2020
1015
1014
2012
2009
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