MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) MHP8565 SINGLE 3 Amp POINT-OF-LOAD REGULATOR Levels Available COTS MILITARY SPACE DESCRIPTION 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, enable, external synchronization and soft start. Some models can also be setup in a parallel configuration to increase output current capability and reduce ripple on the input and output supplies. 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. MO-078 (MHP8565) FEATURES Smallest footprint in the Space Industry Single 3 Amp product (Note 2) Efficiencies to 87%, see Figure 7 Radiation Hard to 100K rad TID SE results show no significant output transients through an LET of 58 MeV/(mg/cm2) 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 6). 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. 7 (07/09/14) ©2014 Microsemi Corporation Page 1 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) Table 1 – ABSOLUTE MAXIMUM RATINGS (Tc = +25°C unless otherwise note) Parameters / Test Conditions Symbol Value Unit Input Voltage (Note 1) Vin 16 Vdc Enable Input Voltage Ven 7 Vdc Approximate Weight MO-078 10 Grams Operating Temperature Range, Base of Package Tc -55 to +125 °C Storage Temperature Range Tstg -65 to +150 °C Value Unit 2.5 °C/W THERMAL CHARACTERISTICS Parameters / Test Conditions Symbol Series Switch Thermal Resistance, Junction-to-Case, MO-78 package RJC MECHANICAL and PACKAGING See Figures 2 through 4, and Table 6. T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 2 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) Table 2 – ELECTRICAL CHARACTERISTICS (See Note 5) (TA = -55°C to +125°C unless otherwise noted) Parameters / Test Conditions Minimum input Voltage Symbol (Note 8) Min. Value Nom Max. Unit Vin(min) 4.5 Output Voltage Accuracy Vo = 1.21V Vout 1.19 1.23 V Post 100K Irradiation, 25°C Vout 1.17 1.24 V Line regulation 4.5V < Vin < 5.5V Vo = 1.21V Kvi -0.5 +0.5 % Load regulation 1A < Iout < 2A Kvo -1 +1 % Current Limit Vo = 2.5V 3.5 V 5 A ICL Post 100K Irradiation, 25°C 3.0 Input Voltage on Enable pin to guarantee shutdown Io = 0A (MHP8565A only) (Note 4) Vshdn 0.13 0.40 0.60 V T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 3 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) Table 3 – MODEL NUMBER FUNCTIONALITY CHART PACKAGE TYPE MODEL NUMBER MHP8565A$&* NOTES 3 Amp Series MO-078 OUTPUT TYPE Adj OTHER FUNCTIONALLTY Enable Pin Parallelable Note A Output Voltage Range Note 2 Note 8 NO 0.5 – 4V FORMER P/N Package Body Internal Compensation Isolated SAT8565A-3$T-ADJ Replace “$” with letter to denote required screening level C = COTS M = MILITARY S = SPACE 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 T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 4 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) Table 4 – SCREENING OPTIONS TEST COMMERCIAL COTS MILITARY SPACE MIL-PRF-38534 MIL-STD-883 Method Element Evaluation N/A Military Space Note 9 Non-Destruct Wirebond Pull N/A Sample 100% 2023 Pre-Cap Visual N/A 100% 100% 2017 Temperature Cycle N/A 100% 100% 1010 Constant Acceleration N/A 100% 100% 2001 PIND N/A 100% 2020 Pre-Burn In Electrical N/A Burn-In N/A 100% 100% (320 Hours) 100% 1015 100% (25°C) 100% 100% (160 Hours) 100% Note 9 100% 100% 100% 1014 X-Ray (Note 10) N/A N/A Yes 2012 External Visual Sample 100% 100% 2009 Final Electrical Tests Hermeticity (Fine and Gross Leak) NOTES: 1. Most internal components are rated at +16 Volts maximum, and are therefore properly derated for operation at a nominal input of +5 Volts. 2. 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 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, 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 10. 8. Minimum input voltage is guaranteed by line regulation test. 9. Microsemi is a DLA approved facility. Testing is performed per MIL-PRF-38534. T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 5 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) APPLICATION CIRCUITS, 3 Amp PRODUCT Figure 1 – 3A Adjustable Configuration Vout = Vref x (1+Radj / 2490), with Vref ~ 1.21 Volts 8565A + Table 5 – Commonly Available 1% Resistor Values for Various Output Voltage for 3A Product Vout (V) Radj (Ω) Vout (V) Radj (Ω) 1.21 1.5 1.8 2.0 2.2 2.5 0 590 1210 1620 2050 2670 2.8 3.0 3.3 3.5 3.8 4.0 3240 3650 4320 4750 5360 5760 T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 6 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) PACKAGE OUTLINES, 3 Amp PRODUCT (8565) Figure 2 – Standard Straight Package .260 Max .165 .155 .695 .685 .045 .035 .345 .835 .815 .707 .695 .550 .530 .750 .500 5X .035 .025 .140 TYP 4X .100 Dimensions are in inches Tolerances .XXX = ± .005” .XX = ± .010” T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 7 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) PACKAGE OUTLINES, 3 Amp PRODUCT (8565) Figure 3 – Surface Mount Lead-Bend .165 .155 .260 Max .695 .685 .045 .035 .345 .835 .707 .815 .695 .550 .530 1.03 ± .03 5X .110 .090 .035 .025 .115 .095 .125 .115 4X .100 Dimensions are in inches Tolerances .XXX = ± .005” .XX = ± .010” T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 8 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) PACKAGE OUTLINES, 3 Amp PRODUCT (8565) Figure 4 – Right angle Lead-Bend .165 .155 .260 Max .695 .685 .045 .035 .345 .835 .815 .707 .695 .550 .530 1.02 ± .023 .190 .170 5X .035 .025 .250 Min 4X .100 Dimensions are in inches Tolerances .XXX = ± .005” .XX = ± .010” Table 6 – Pin Assignments for 3 Amp Product 8565A Pin No Pin Name T4-LDS-0256 Rev. 7 (07/09/14) 1 Vin 2 GND 3 4 5 Case Vout Enable Adjust N/C Pin Description Input Voltage Current Ground Output Voltage Enable Output Output Voltage Adjust Isolated ©2014 Microsemi Corporation Page 9 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) PACKAGE OUTLINES, 3 Amp PRODUCT (8565) Figure 5 – Circuit for Creating Regulated Output Voltages below 1.21 Volts A Vout = 1.21 – R (K-Ohms) Example: If R = 0.21K Ohms (210 Ohms), Vout = 1.21 – 0.21 = 1.0V, within the limits of the tolerances of the components used. ** RAD Hard Zener or other fixed voltage >2V may be used. For any voltage other than 2.5V, resistor values would have to be adjusted accordingly. T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 10 of 11 MHP8565 (Formerly SAT8565 Series) (Consult Table 3 for Part Number Designations) Figure 6 – MHP8565 Typical Efficiency vs Typical Competitive POL (Vin = 5V, Vout = 3.3) MHP8565 Typical Competitive POL 90.00% 88.00% Efficiency 86.00% 84.00% 82.00% 80.00% 78.00% 76.00% 74.00% 72.00% 0.50 0.75 1.00 1.25 1.50 1.75 I out Amps Figure 7– Typical Efficiency Curves (Vin = 5V) 90.00% 85.00% 80.00% 1.2 V 1.8 V 2.5 V 3.3 V 75.00% Efficiency 70.00% 65.00% 60.00% 55.00% 50.00% 0.5 A 1.0 A 1.5 A 2.0 A 2.5 A 3.0 A 3.5 A 4.0 A 4.5 A Load Amps T4-LDS-0256 Rev. 7 (07/09/14) ©2014 Microsemi Corporation Page 11 of 11