Maker : MSK
Part No. : 5059RH

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Product Information

MIL-PRF-38534 CERTIFIED M.S.KENNEDY CORP. FEATURES: RAD HARD 4.5A, 500KHz STEP DOWN SWITCHING REGULATOR CONTROLLER 5059RH (315) 701-6751 www.DataSheet4U.com 4707 Dey Road Liverpool, N.Y. 13088 Manufactured using Rad Hard RH1959MILDICE Radiation Tested to TBD Krad(Si) (Method 1019.7 Condition A) 500KHz Constant Switching Frequency:Synchronizable to 1MHz 4.5A Integrated Switch Internal Slope Compensation Input Voltage Range from 4.3V to 16V Cycle by Cycle Current Limit Output Voltages Down to 1.21V Contact MSK for MIL-PRF-38534 Qualification Status DESCRIPTION: The MSK 5059RH is a radiation hardened 500KHz switching regulator controller capable of delivering up to 4.5A of current to the load. A fixed 500KHz switching frequency allows the use of smaller inductors reducing required board space for a given design. The 4.5A integrated switch leaves only a few application specific components to be selected by the designer. The MSK 5059RH simplifies design of high efficiency radiation hardened switching regulators that use a minimum amount of board space. The device is packaged in a hermetically sealed 16 pin flatpack and is available with straight or gull wing leads. EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS POL Applications Satellite System Power Supply Step Down Switching Regulator Microprocessor, FPGA Power Source High Efficiency Low Voltage Subsystem Power Supply PIN-OUT INFORMATION 1 2 3 4 5 6 7 8 1 VINA VINB VINC VIND VINE BOOST FB GND 16 15 14 13 12 11 10 9 SWA SWB SWC SWD SWE SYNC SHDN VC Rev. A 11/09 PRELIMINARY ABSOLUTE MAXIMUM RATINGS ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 7 www.DataSheet4U.com ELECTRICAL SPECIFICATIONS NOTES: 1 2 3 4 5 6 Unless otherwise specified VIN=5V, VC=1.5V, BOOST=VIN+5V. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroup 1 unless otherwise specified. Military grade devices ("H" and "K" suffix) shall be 100% tested to subgroups 1,2,3 and 4. Subgroup 5 & 6 testing available on request. Subgroup 1,4 TC=+25°C Subgroup 2,5 TC=+125°C Subgroup 3,6 TC=-55°C 7 Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. 8 The absolute maximum current of 4.5A applies for duty cycles of 0.75 or lower. De-rate linearly from 4.5A at D=0.75 to 3.375A at D=100. 9 Pre and Post irradiation limits at 25°C, up to TBD Krad(Si) TID, are identical unless otherwise specified. 2 PRELIMINARY ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ FB 300°C TC -40°C to +85°C -55°C to +125°C Rev. A 11/09 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ VIN IOUT ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Input Voltage (VIN) Output Current 8 BOOST Voltage BOOST Above Input Voltage SHDN Pin Voltage FB Pin Voltage FB Pin Current ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 16V 4.5A 30V 15V 7V 3.5V 1mA PD TJ TST TLD Power Dissipation Junction Temperature Storage Temperature Range Lead Temperature Range (10 Seconds) Case Operating Temperature MSK 5059RH MSK 5059(K/H/E)RH TBD +150°C -65°C to +150°C APPLICATION NOTES PIN FUNCTIONS VIN - The VIN pins connect to the collector of the internal power switch and provide power to the internal control circuitry and internal regulator. Very high di/dt is seen at these pins during switc...

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