M3L2803R3D

M3L2815S IRF | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 11

Technical content

Features

+ 28V Input, Single/Dual Output The L-Series of DC/DC converters are radiation toler- ant, high reliability devices designed for moderate ra- diation environments such as those encountered by low earth orbit satellites and launch vehicles. For higher radiation environments, the G-Series of DC/DC con- verters is recommended. Features include small size, low weight and a high tolerance to total ionizing dose, single event effects and environmental stresses such as temperature extremes, mechanical shock, and vibration. All components are fully derated to meet the require- ments of MIL-STD-975 and MIL-STD-1547 and GSFC PPL-21 Appendix B. Extensive documentation includ- ing Radiation Susceptibility, Thermal Analysis, Stress Analysis and MTBF are available. The converters incorporate a fixed frequency single for- ward topology with magnetic feedback and an internal EMI filter. These converters are capable of meeting the conducted emissions and conducted susceptibility re- quirements of MIL-STD-461C without any additional components. All models include an external inhibit port and have an adjustable output voltage. They are en- closed in a hermetic 1.5" x 2.3" x 0.425" steel package and weigh less than 85 grams. The package utilizes rugged ceramic feed-through copper core pins and is sealed using parallel seam welding. Full environmental screening includes temperature cy- cling, constant acceleration, fine and gross leak, and burn-in. Non-flight versions of the L-Series converters are avail- able for system development purposes. Variations in electrical specifications and screening to meet custom requirements can be accommodated.

Applications

/G6E/G20Low Earth Orbit Satellites (LEO) /G6E/G20Launch Vehicles PD - 94519A

2 www.irf.com L-SERIES The L-Series converters utilize a single-ended for- ward topology with resonant reset. The nominal switching frequency is 500kHz. Electrical isolation and tight output regulation are achieved through the use of a magnetically coupled feedback. Voltage feed-forward with duty factor limiting provides high line rejection and protection against output over volt- age in the event of an internal control loop failure. This mechanism limits the maximum output voltage to approximately 20% over the nominal regardless of the line voltage. Circuit Description An internal EMI filter allows the converter to meet the conducted emissions requirements of MIL-STD-461C on the input power leads. A single-stage output filter reduces the typical output ripple to less than 50mV peak-to-peak. Output current is limited under any load fault condi- tion to approximately 125% of rated. An overload condition causes the converter output to behave like a constant current source with the output voltage drop- ping below nominal. The converter will resume nor- mal operation when the load current is reduced be- low the current limit point. This protects the converter from both overload and short circuit conditions. The current limit point exhibits a slightly negative tem- perature coefficient to reduce the possibility of ther- mal runaway. An external inhibit port is provided to control con- verter operation. The converter’s operation is inhib- ited when this pin is pulled low. It is intended to be driven by an open collector logic device. The pin may be left open for normal operation and has a nominal open circuit voltage of 10.5V with respect to the input return (pin 2). The output voltage of all models can be adjusted using a single external resistor. Design Methodology The L-Series was developed using a proven con- servative design methodology which includes se- lecting radiation tolerance and established reliabil- ity components and fully derating to the requirements of MIL-STD-975 and MIL-STD-1547. Heavy derat- ing of the power MOSFET gate and drain voltages minimize the possibility of SEGR and SEB. A mag- netic feedback circuit is utilized instead of opto-cou- plers to minimize temperature, radiation and aging sensitivity. PSPICE was used extensively to predict and optimize circuit performance for both beginning and end-of-life. Thorough design analyses include Radiation Susceptibility ( TREE ), Stress, Thermal, and Reliability ( MTBF ).

www.irf.com 3 L-SERIES Input voltage range - -0.5Vdc to +60Vdc Input voltage range - 16Vdc to +60Vdc Output power - Internally limited Input voltage range1 - 16Vdc to +38Vdc Lead temperature - +300°C for 10 seconds Output power - 0 to Max. Rated Operating temperature - -55°C to +135°C Operating temperature2 - -55°C to +125°C Storage temperature - -55°C to +135°C Operating temperature1 - -55°C to +70°C Meets derating per MIL-STD-975 For operation at +125°C see table note 13 Absolute Maximum Ratings Recommended Operating Conditions Electrical Performance Characteristics For Notes to Specifications, refer to page 5 /G20 /G4C/G69/G6D/G69/G74/G73/G20 /G20 /G20 /G20 /G50/G61/G72/G61/G6D/G65/G74/G65/G72/G20 /G20 /G20 /G47/G72/G6F/G75/G70/G20/G41/G20 /G53/G75/G62/G67/G72/G6F/G75/G70/G20 /G20 /G43/G6F/G6E/G64/G69/G74/G69/G6F/G6E/G73/G20 /G2D/G35/G35°/G43/G20≤/G20/G54/G43/G20≤/G20/G2B/G38/G35°/G43/G20 /G56/G49/G4E/G20/G3D/G20/G32/G38/G56/G20/G44/G43/G20/GB1/G20/G35/G25/G2C/G20/G43/G4C/G20/G3D/G20/G30/G20 /G75/G6E/G6C/G65/G73/G73/G20/G6F/G74/G68/G65/G72/G77/G69/G73/G65/G20/G73/G70/G65/G63/G69/G66/G69/G65/G64/G20 /G20 /G20 /G4D/G69/G6E/G20 /G20 /G20 /G4E/G6F/G6D/G20 /G20 /G20 /G4D/G61/G78/G20 /G20 /G20 /G20 /G55/G6E/G69/G74/G20 /G20/G20/G49/G6E/G70/G75/G74/G20/G56/G6F/G6C/G74/G61/G67/G65/G20 /G20 /G20 /G31/G38/G20 /G32/G38/G20 /G35/G30/G20 /G56/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G56/G6F/G6C/G74/G61/G67/G65/G20/G20/G28/G20/G56/G6F/G75/G74/G20/G29/G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G20 /G31/G20 /G31/G20 /G31/G20 /G31/G20 /G31/G20 /G31/G20 /G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G32/G2C/G33/G20 /G20 /G49 /G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G4E/G6F/G74/G65/G20/G34/G20 /G20 /G20 /G20 /G20 /G20 /G20 /G49 /G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G4E/G6F/G74/G65/G20/G34/G20 /G20 /G20 /G20 /G20 /G20 /G33/G2E/G32/G37/G20 /G34/G2E/G39/G35/G20 /G31/G31/G2E/G38/G38/G20 /G31/G34/G2E/G38/G35/G20 /GB1/G34/G2E/G39/G35/G20 /GB1/G31/G31/G2E/G38/G38/G20 /GB1/G31/G34/G2E/G38/G35/G20 /G20 /G33/G2E/G32/G33/G20 /G34/G2E/G39/G30/G20 /G31/G31/G2E/G37/G36/G20 /G31/G34/G2E/G37/G30/G20 /GB1/G34/G2E/G39/G30/G20 /GB1/G31/G31/G2E/G37/G36/G20 /GB1/G31/G34/G2E/G37/G30/G20 /G20 /G33/G2E/G33/G30/G20 /G35/G2E/G30/G30/G20 /G31/G32/G2E/G30/G30/G20 /G31/G35/G2E/G30/G30/G20 /GB1/G35/G2E/G30/G30/G20 /GB1/G31/G32/G2E/G30/G30/G20 /GB1/G31/G35/G2E/G30/G30/G20 /G20 /G20 /G20 /G33/G2E/G33/G33/G20 /G35/G2E/G30/G35/G20 /G31/G32/G2E/G31/G32/G20 /G31/G35/G2E/G31/G35/G20 /GB1/G35/G2E/G30/G35/G20 /GB1/G31/G32/G2E/G31/G32/G20 /GB1/G31/G35/G2E/G31/G35/G20 /G20 /G33/G2E/G33/G37/G20 /G35/G2E/G31/G30/G20 /G31/G32/G2E/G32/G34/G20 /G31/G35/G2E/G33/G30/G20 /GB1/G35/G2E/G31/G30/G20 /GB1/G31/G32/G2E/G32/G34/G20 /GB1/G31/G35/G2E/G33/G30/G20 /G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G56/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G70/G6F/G77/G65/G72/G20/G20/G28/G20/G50/G4F/G55/G54/G20/G29/G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G41/G6C/G6C/G20/G4F/G74/G68/G65/G72/G73/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G56/G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G2C/G20/G4E/G6F/G74/G65/G20/G32/G20 /G20 /G30/G20 /G30/G20 /G20 /G20 /G20 /G32/G30/G20 /G32/G35/G20 /G20 /G57/G20 /G57/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G63/G75/G72/G72/G65/G6E/G74/G20/G20/G28/G20/G49/G4F/G55/G54/G20/G29/G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G20 /G56 /G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G2C/G20/G4E/G6F/G74/G65/G20/G32/G20 /G20 /G20 /G20 /G45/G69/G74/G68/G65/G72/G20/G4F/G75/G74/G70/G75/G74/G2C/G20/G4E/G6F/G74/G65/G20/G33/G20 /G45/G69/G74/G68/G65/G72/G20/G4F/G75/G74/G70/G75/G74/G2C/G20/G4E/G6F/G74/G65/G20/G33/G20 /G45/G69/G74/G68/G65/G72/G20/G4F/G75/G74/G70/G75/G74/G2C/G20/G4E/G6F/G74/G65/G20/G33/G20 /G20 /G30/G20 /G30/G20 /G30/G20 /G30/G20 /G30/G20 /G30/G20 /G30/G20 /G20 /G20 /G20 /G36/G2E/G30/G36/G20 /G35/G2E/G30/G30/G20 /G32/G2E/G30/G38/G20 /G31/G2E/G36/G37/G20 /G34/G2E/G30/G30/G20 /G31/G2E/G36/G37/G20 /G31/G2E/G33/G33/G20 /G20 /G41/G20 /G41/G20 /G41/G20 /G41/G20 /G41/G20 /G41/G20 /G41/G20 /G20/G20/G4C/G69/G6E/G65/G20/G72/G65/G67/G75/G6C/G61/G74/G69/G6F/G6E/G20/G20/G28/G20/G56/G52/G4C/G49/G4E/G45/G20/G20/G29/G20 /G31/G2C/G32/G2C/G33/G20 /G56/G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G20 /G49/G4F/G55/G54/G20/G3D/G20/G30/G2C/G20/G35/G30/G25/G2C/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G2C/G20/G4E/G6F/G74/G65/G20/G34/G20 /G2D/G30/G2E/G35/G20/G20 /G20 /G30/G2E/G35/G20 /G25/G20 /G20/G20/G4C/G6F/G61/G64/G20/G72/G65/G67/G75/G6C/G61/G74/G69/G6F/G6E/G20/G20/G28/G20/G56/G52/G4C/G4F/G41/G44/G20/G20/G29/G20 /G31/G2C/G32/G2C/G33/G20 /G49/G4F/G55/G54/G20/G3D/G20/G30/G2C/G20/G35/G30/G25/G2C/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G2C/G20/G4E/G6F/G74/G65/G20/G34/G20 /G56/G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G20 /G2D/G31/G2E/G30/G20/G20 /G20 /G31/G2E/G30/G20 /G25/G20 /G20/G20/G43/G72/G6F/G73/G73/G20/G72/G65/G67/G75/G6C/G61/G74/G69/G6F/G6E/G20/G28/G20/G56/G52/G43/G52/G4F/G53/G53/G20/G29/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G56 /G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G20 /G44/G75/G61/G6C/G73/G20/G6F/G6E/G6C/G79/G2C/G20/G4E/G6F/G74/G65/G20/G35/G20 /G20 /G2D/G35/G2E/G30/G20 /G2D/G33/G2E/G30/G20 /G2D/G33/G2E/G30/G20 /G20 /G20 /G20 /G35/G2E/G30/G20 /G33/G2E/G30/G20 /G33/G2E/G30/G20 /G20 /G25/G20 /G25/G20 /G25/G20

4 www.irf.com L-SERIES Electrical Performance Characteristics ( continued ) For Notes to Specifications, refer to page 5 /G20 /G4C/G69/G6D/G69/G74/G73/G20 /G20 /G50/G61/G72/G61/G6D/G65/G74/G65/G72/G20 /G20 /G47/G72/G6F/G75/G70/G20/G41/G20 /G53/G75/G62/G67/G72/G6F/G75/G70/G20 /G20 /G43/G6F/G6E/G64/G69/G74/G69/G6F/G6E/G73/G20 /G2D/G35/G35°/G43/G20≤/G20/G54/G43/G20≤/G20/G2B/G38/G35°/G43/G20 /G56/G49/G4E/G20/G3D/G20/G32/G38/G56/G20/G44/G43/G20/GB1/G20/G35/G25/G2C/G20/G43/G4C/G20/G3D/G20/G30/G20 /G75/G6E/G6C/G65/G73/G73/G20/G6F/G74/G68/G65/G72/G77/G69/G73/G65/G20/G73/G70/G65/G63/G69/G66/G69/G65/G64/G20 /G20 /G4D/G69/G6E/G20 /G20 /G4E/G6F/G6D/G20 /G20 /G4D/G61/G78/G20 /G20 /G55/G6E/G69/G74/G20 /G20/G20/G49/G6E/G70/G75/G74/G20/G63/G75/G72/G72/G65/G6E/G74/G2C/G20/G6E/G6F/G20/G6C/G6F/G61/G64/G20/G28/G20/G49/G49/G4E/G20/G29/G20 /G20/G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G49 /G4F/G55/G54/G20/G3D/G20/G30/G2C/G20/G50/G69/G6E/G20/G34/G20/G6F/G70/G65/G6E/G20 /G20 /G20/G20 /G20 /G36/G30/G20 /G37/G30/G20 /G37/G30/G20 /G37/G30/G20 /G37/G30/G20 /G31/G30/G30/G20 /G31/G30/G30/G20 /G20 /G6D/G41/G20 /G6D/G41/G20 /G6D/G41/G20 /G6D/G41/G20 /G6D/G41/G20 /G6D/G41/G20 /G6D/G41/G20 /G20/G20/G49/G6E/G70/G75/G74/G20/G63/G75/G72/G72/G65/G6E/G74/G20/G69/G6E/G68/G69/G62/G69/G74/G65/G64/G20 /G31/G2C/G32/G2C/G33/G20 /G50/G69/G6E/G20/G34/G20/G73/G68/G6F/G72/G74/G65/G64/G20/G74/G6F/G20/G70/G69/G6E/G20/G32/G20 /G20 /G20 /G20 /G20 /G20 /G38/G20 /G6D/G41/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G72/G69/G70/G70/G6C/G65/G20/G28/G20/G56/G52/G49/G50/G20/G29/G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G56/G49/G4E/G20/G3D/G20/G31/G36/G2C/G20/G32/G38/G2C/G20/G35/G30/G20/G56/G6F/G6C/G74/G73/G20 /G49/G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G4E/G6F/G74/G65/G73/G20/G34/G2C/G20/G36/G20 /G20 /G20 /G20 /G20 /G20 /G33/G35/G20 /G35/G30/G20 /G37/G30/G20 /G38/G30/G20 /G38/G30/G20 /G38/G30/G20 /G38/G30/G20 /G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G6D/G56/G20/G70/G2D/G70/G20 /G20/G20/G53/G77/G69/G74/G63/G68/G69/G6E/G67/G20/G66/G72/G65/G71/G75/G65/G6E/G63/G79/G20/G28/G20/G46/G53/G20/G29/G20 /G31/G2C/G32/G2C/G33/G20 /G53/G79/G6E/G63/G2E/G20/G49/G6E/G70/G75/G74/G20/G28/G50/G69/G6E/G20/G34/G29/G20/G6F/G70/G65/G6E/G20 /G34/G32/G35/G20 /G35/G30/G30/G20 /G35/G37/G35/G20 /G4B/G48/G7A/G20 /G20/G20/G45/G66/G66/G69/G63/G69/G65/G6E/G63/G79/G20/G28/G20/G45/G46/G46/G20/G29/G20 /G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G49/G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G4E/G6F/G74/G65/G20/G34/G20 /G20 /G36/G38/G20 /G37/G35/G20 /G37/G35/G20 /G37/G35/G20 /G37/G35/G20 /G37/G35/G20 /G37/G35/G20 /G20 /G37/G35/G20 /G37/G39/G20 /G38/G30/G20 /G38/G31/G20 /G37/G39/G20 /G37/G39/G20 /G38/G30/G20 /G20 /G20 /G20 /G25/G20 /G25/G20 /G25/G20 /G25/G20 /G25/G20 /G25/G20 /G25/G20 /G20/G20/G45/G6E/G61/G62/G6C/G65/G20/G49/G6E/G70/G75/G74/G20/G28/G20/G49/G6E/G68/G69/G62/G69/G74/G20/G46/G75/G6E/G63/G74/G69/G6F/G6E/G20/G29/G20 /G6F/G70/G65/G6E/G20/G63/G69/G72/G63/G75/G69/G74/G20/G76/G6F/G6C/G74/G61/G67/G65/G20 /G64/G72/G69/G76/G65/G20/G63/G75/G72/G72/G65/G6E/G74/G20/G28/G20/G73/G69/G6E/G6B/G20/G29/G20 /G76/G6F/G6C/G74/G61/G67/G65/G20/G72/G61/G6E/G67/G65/G20 /G20 /G31/G2C/G32/G2C/G33/G20 /G20 /G4E/G6F/G74/G65/G20/G31/G20 /G39/G2E/G35/G20 /G20 /G2D/G30/G2E/G35/G20 /G20 /G20 /G31/G31/G2E/G35/G20 /G35/G30/G30/G20 /G35/G30/G20 /G56/G20 µ/G41/G20 /G56/G20 /G20/G20/G43/G75/G72/G72/G65/G6E/G74/G20/G4C/G69/G6D/G69/G74/G20/G50/G6F/G69/G6E/G74/G20 /G20/G20/G45/G78/G70/G72/G65/G73/G73/G65/G64/G20/G61/G73/G20/G61/G20/G70/G65/G72/G63/G65/G6E/G74/G61/G67/G65/G20 /G20/G20/G6F/G66/G20/G66/G75/G6C/G6C/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20/G63/G75/G72/G72/G65/G6E/G74/G20 /G31/G2C/G32/G2C/G33/G20 /G56/G6F/G75/G74/G20/G3D/G20/G39/G30/G25/G20/G6F/G66/G20/G4E/G6F/G6D/G69/G6E/G61/G6C/G2C/G20/G4E/G6F/G74/G65/G20/G34/G20 /G31/G30/G35/G20 /G20 /G20 /G31/G33/G30/G20 /G25/G20 /G20/G20/G50/G6F/G77/G65/G72/G20/G64/G69/G73/G73/G69/G70/G61/G74/G69/G6F/G6E/G2C/G20/G6C/G6F/G61/G64/G20/G66/G61/G75/G6C/G74/G20/G28/G50/G44/G29/G20 /G31/G2C/G32/G2C/G33/G20 /G53/G68/G6F/G72/G74/G20/G43/G69/G72/G63/G75/G69/G74/G2C/G20/G4F/G76/G65/G72/G6C/G6F/G61/G64/G2C/G20/G4E/G6F/G74/G65/G20/G38/G20 /G20 /G20 /G20 /G20 /G20 /G31/G34/G20 /G57/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G72/G65/G73/G70/G6F/G6E/G73/G65/G20/G74/G6F/G20/G20 /G20/G20/G73/G74/G65/G70/G20/G6C/G6F/G61/G64/G20/G63/G68/G61/G6E/G67/G65/G73/G20/G28/G56/G54/G4C/G44/G29/G20/G20 /G34/G2C/G35/G2C/G36/G20 /G48/G61/G6C/G66/G20/G4C/G6F/G61/G64/G20/G74/G6F/G2F/G66/G72/G6F/G6D/G20/G46/G75/G6C/G6C/G20/G4C/G6F/G61/G64/G2C/G20/G4E/G6F/G74/G65/G73/G20/G34/G2C/G39/G20 /G2D/G33/G30/G30/G20/G20 /G20 /G33/G30/G30/G20 /G6D/G56/G20/G70/G6B/G20 /G20/G20/G52/G65/G63/G6F/G76/G65/G72/G79/G20/G74/G69/G6D/G65/G2C/G20 /G20/G20/G73/G74/G65/G70/G20/G6C/G6F/G61/G64/G20/G63/G68/G61/G6E/G67/G65/G73/G20/G28/G54/G54/G4C/G44/G29/G20/G20 /G34/G2C/G35/G2C/G36/G20 /G48/G61/G6C/G66/G20/G4C/G6F/G61/G64/G20/G74/G6F/G2F/G66/G72/G6F/G6D/G20/G46/G75/G6C/G6C/G20/G4C/G6F/G61/G64/G2C/G20/G4E/G6F/G74/G65/G20 /G34/G2C/G39/G2C/G31/G30/G20 /G20 /G20 /G20 /G20 /G32/G30/G30/G20µ/G53/G20 /G20/G20/G4F/G75/G74/G70/G75/G74/G20/G72/G65/G73/G70/G6F/G6E/G73/G65/G20/G74/G6F/G20/G20 /G20/G20/G73/G74/G65/G70/G20/G6C/G69/G6E/G65/G20/G63/G68/G61/G6E/G67/G65/G73/G20/G28/G56/G54/G4C/G4E/G29/G20/G20/G20 /G34/G2C/G35/G2C/G36/G20 /G31/G36/G56/G20/G74/G6F/G2F/G66/G72/G6F/G6D/G20/G35/G30/G56/G20 /G49/G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G2C/G20/G4E/G6F/G74/G65/G73/G20/G31/G2C/G34/G2C/G31/G31/G20 /G2D/G33/G30/G30/G20/G20 /G20 /G33/G30/G30/G20 /G6D/G56/G20/G70/G6B/G20 /G20/G20/G52/G65/G63/G6F/G76/G65/G72/G79/G20/G54/G69/G6D/G65/G2C/G20/G20/G20/G20 /G20/G20/G73/G74/G65/G70/G20/G6C/G69/G6E/G65/G20/G63/G68/G61/G6E/G67/G65/G73/G20/G28/G54/G54/G4C/G4E/G29/G20 /G34/G2C/G35/G2C/G36/G20 /G31/G36/G56/G20/G74/G6F/G2F/G66/G72/G6F/G6D/G20/G35/G30/G56/G20 /G49/G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G2C/G20/G4E/G6F/G74/G65/G73/G20 /G31/G2C/G34/G2C/G31/G30/G2C/G31/G31/G20 /G20 /G20 /G32/G30/G30/G20µ/G53/G20 /G20/G20/G54/G75/G72/G6E/G2D/G6F/G6E/G20/G52/G65/G73/G70/G6F/G6E/G73/G65/G20 /G4F/G76/G65/G72/G73/G68/G6F/G6F/G74/G20/G28/G56/G4F/G53/G29/G20 /G54/G75/G72/G6E/G2D/G6F/G6E/G20/G44/G65/G6C/G61/G79/G20/G28/G54/G44/G4C/G59/G29/G20 /G20 /G34/G2C/G35/G2C/G36/G20 /G20 /G4E/G6F/G20/G4C/G6F/G61/G64/G2C/G20/G46/G75/G6C/G6C/G20/G4C/G6F/G61/G64/G20 /G4E/G6F/G74/G65/G73/G20/G34/G2C/G31/G32/G20 /G20 /G20 /G32/G20 /G20/G20 /G35/G30/G30/G20 /G31/G30/G20 /G20 /G6D/G56/G20 /G6D/G53/G20

www.irf.com 5 L-SERIES Electrical Performance Characteristics ( continued ) Table I. Electrical Performance Characteristics - notes 1) Parameter is tested as part of design characterization or after design changes. Thereafter, parameter shall be guaranteed to the limits specified. 2) Parameter verified during line and load regulation tests. 3) Output load current must be distributed such that at least 20% of the total load current is being provided by one of the outputs. 4) Load current split equally between outputs on dual output models. 5) Cross regulation is measured with 20% rated load on output under test while changing the load on the other output from 20% to 80% of rated. 6) Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth using the circuit shown below. 7) Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess of the maximum limit may interfere with the proper operation of the converter’s overload protection, causing erratic behavior during turn-on. 8) Overload power dissipation is defined as the device power dissipation with the load set such that V OUT = 90% of nominal. 9) Load step transition time ≤ 10 µSec. 10) Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of its steady state value. 11) Line step transition time ≤ 100 µSec. 12) Turn-on delay time from either a step application of input power or a logic low to a logic high transition on the inhibit pin (pin 4) to the point where VOUT = 90% of nominal. 13) For operation at temperatures between +85°C and +125°C, derate the maximum output power linearly from 100% to 75%. /G20 /G50/G61/G72/G61/G6D/G65/G74/G65/G72/G20 /G20 /G47/G72/G6F/G75/G70/G20/G41/G20 /G53/G75/G62/G67/G72/G6F/G75/G70/G20 /G20 /G43/G6F/G6E/G64/G69/G74/G69/G6F/G6E/G73/G20 /G2D/G35/G35°/G43/G20≤/G20/G54/G43/G20≤/G20/G2B/G38/G35°/G43/G20 /G56/G49/G4E/G20/G3D/G20/G32/G38/G56/G20/G44/G43/G20/GB1/G20/G35/G25/G2C/G20/G43/G4C/G20/G3D/G20/G30/G20 /G75/G6E/G6C/G65/G73/G73/G20/G6F/G74/G68/G65/G72/G77/G69/G73/G65/G20/G73/G70/G65/G63/G69/G66/G69/G65/G64/G20 /G20 /G4C/G69/G6D/G69/G74/G73/G20 /G20 /G55/G6E/G69/G74/G20 /G20/G20/G43/G61/G70/G61/G63/G69/G74/G69/G76/G65/G20/G4C/G6F/G61/G64/G20/G28/G43/G4C/G29/G20 /G20/G20/G20/G20/G20/G4D/G33/G4C/G32/G38/G30/G33/G52/G33/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G53/G20 /G4D/G33/G4C/G32/G38/G31/G32/G53/G20 /G4D/G33/G4C/G32/G38/G31/G35/G53/G20 /G4D/G33/G4C/G32/G38/G30/G35/G44/G20 /G4D/G33/G4C/G32/G38/G31/G32/G44/G20 /G4D/G33/G4C/G32/G38/G31/G35/G44/G20 /G20 /G31/G20 /G20 /G49 /G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G4E/G6F/G20/G65/G66/G66/G65/G63/G74/G20/G6F/G6E/G20/G44/G43/G20/G70/G65/G72/G66/G6F/G72/G6D/G61/G6E/G63/G65/G20 /G4E/G6F/G74/G65/G73/G20/G31/G2C/G20/G34/G2C/G20/G37/G20 /G20 /G20 /G45/G61/G63/G68/G20/G6F/G75/G74/G70/G75/G74/G20/G6F/G6E/G20/G64/G75/G61/G6C/G73/G20 /G20 /G20 /G20 /G20 /G20 /G20 /G32/G32/G30/G30/G20 /G31/G30/G30/G30/G20 /G31/G38/G30/G20 /G31/G32/G30/G20 /G35/G30/G30/G20 /G39/G30/G20 /G36/G30/G20 /G20 /GB5/G46/G20 /GB5/G46/G20 /GB5/G46/G20 /GB5/G46/G20 /GB5/G46/G20 /GB5/G46/G20 /GB5/G46/G20 /G20/G20/G4C/G69/G6E/G65/G20/G52/G65/G6A/G65/G63/G74/G69/G6F/G6E/G20 /G31/G20 /G49/G4F/G55/G54/G20/G3D/G20/G31/G30/G30/G25/G20/G72/G61/G74/G65/G64/G20/G6C/G6F/G61/G64/G20 /G44/G43/G20/G74/G6F/G20/G35/G30/G4B/G48/G7A/G2C/G20/G4E/G6F/G74/G65/G73/G20/G31/G2C/G20/G34/G20 /G34/G30/G20 /G35/G30/G20/G20 /G20 /G64/G42/G20 /G20/G20/G49/G73/G6F/G6C/G61/G74/G69/G6F/G6E/G20 /G31/G20 /G49/G6E/G70/G75/G74/G20/G74/G6F/G20/G4F/G75/G74/G70/G75/G74/G20/G6F/G72/G20/G41/G6E/G79/G20/G50/G69/G6E/G20/G74/G6F/G20/G43/G61/G73/G65/G20 /G65/G78/G63/G65/G70/G74/G20/G70/G69/G6E/G20/G33/G2C/G20/G74/G65/G73/G74/G20/G40/G20/G35/G30/G30/G56/G44/G43/G20 /G31/G30/G30/G20/G20 /G20 /G20 /G20 /G4DΩ/G20 /G20/G20/G44/G65/G76/G69/G63/G65/G20/G57/G65/G69/G67/G68/G74/G20/G20 /G20 /G20 /G20 /G20 /G20 /G20 /G20 /G38/G35/G20 /G67/G72/G61/G6D/G73/G20 /G20/G20/G4D/G54/G42/G46/G20/G20 /G20 /G4D/G49/G4C/G2D/G48/G44/G42/G4B/G2D/G32/G31/G37/G46/G32/G2C/G20/G53/G46/G2C/G20/G33/G35°/G43/G20/G31/G2E/G35/G20/G78/G20/G31/G30/G36/G20/G20 /G20 /G20 /G20 /G48/G6F/G75/G72/G73/G20

6 www.irf.com L-SERIES Radiation Performance Characteristics Device Screening Test Inspection Method Condition Element Evaluation MIL-PRF-38534 class H equivalent with SEM Nondestructive Bond Pull MIL-STD-883, Method 2023 Internal Visual MIL-STD-883, Method 2017 Temperature Cycling MIL-STD-883, Method 1010 C Constant Acceleration MIL-STD-883, Method 2001 (2k-g) A, Y1 axis only Electrical In accordance with device specification Burn-in MIL-STD-883, Method 1015

160 Hours

Final Electrical ( Group A ) In accordance with device specification Seal Fine Leak Gross Leak MIL-STD-883, Method 1014 C External Visual MIL-STD-883, Method 2009 Test Conditions Min Typ Highest Level Tested Unit Total Ionizing Dose ( Gamma ) MIL-STD-883, Method 1019 Operating bias applied during exposure, Full Rated Load, VIN = 28V 25 40 60 KRads (Si) Single Event Effects SEU, SEL, SEGR, SEB Heavy ions (LET) Operating bias applied during exposure, Full Rated Load, VIN = 28V 37 82 82 MeV •cm /mg Dose Rate ( Gamma Dot ) Temporary Saturation Survival MIL-STD-883, Method 1023 Operating bias applied during exposure, Full Rated Load, VIN = 28V 1E8 1E10 1.5E9 Rads (Si)/sec Neutron Fluence MIL-STD-883, Method 1017 3E12 8E12 Neutrons /cm Proton Fluence E > 10MeV TBD N/A protons /cm

www.irf.com 7 L-SERIES Block Diagram - Single Output Block Diagram - Dual Output 7Vin INHIBIT RETURN +OUTPUT OUTPUT ADJUST 3CASE GROUND + BIAS SUPPLY EMI FILTER +10.5V SAMPLE HOLD FEEDBACK TRIGGER EA

6 OUTPUT

GEN. PWM CONTROLLER 8 +OUTPUT RETURN EA 6 -OUTPUT Vin INHIBIT RETURN 3CASE GROUND BIAS SUPPLY EMI FILTER +10.5V SAMPLE HOLD FEEDBACK TRIGGER RAMP GEN. PWM CONTROLLER

5 OUTPUT

8 www.irf.com L-SERIES Conducted Emissions, Common Mode Conducted Emissions, Normal Mode 100 dB-uA 1E3 1E4 1E5 1E6 1E7 1E8 Frequency ( Hz ) CEO3 LIMIT 100 dB-uA 1E3 1E4 1E5 1E6 1E7 1E8 Frequency ( Hz ) CEO3 LIMIT

www.irf.com 9 L-SERIES M3L2805S Line Rejection (CS01) M3L2815D Line Rejection (CS01) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dB 1E2 1E3 1E4 1E5 Frequency ( Hz ) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dB 1E2 1E3 1E4 1E5 Frequency ( Hz )

10 www.irf.com L-SERIES Circuit for Measuring Output Ripple Voltage M3L2815D Line Rejections (CS01) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dB 1E2 1E3 1E4 1E5 Frequency ( Hz ) + Vout ReturnDUT R L for IRATED 0.1 µ F 50 Ω Coax50 Ω Oscilliscope or Equivalent with 10 MHz Bandwidth. Mul t ip ly reading s by 2. 1 µ F 50 Ω Term ination

www.irf.com 11 L-SERIES WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331 ADVANCED ANALOG: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 02/03 Mechanical Diagram Pin Designation (Single/Dual) Part Number Pin Number Single Dual Pin 1 + Input + Input Pin 2 Input Return Input Return Pin 3 Case Case Pin 4 Inhibit Inhibit Pin 5 Output Adjust Output Adjust Pin 6 Output Return - Vout Pin 7 + Vout Output Common Pin 8 NC + Vout Pin ø 0.040 ø 0.128

4 Plcs

2.300 1.5500.375 0.8500.350 1.500 1.750 2.000 2.80 Ref 0.250 0.425 Max 0.050 0.470 1423 0.400

2 Eq Spaces

@ 0.200 5 876 0.270 1.000 Ref 0.400 0.400 0.200 Tolerance: .XX = ±0.01 .XXX = ±0.005 0.220 0.25 Typ. M3L 28 05 S Model Input Voltage 28 = 28V Nominal Output Voltage 03R3 = 3.3V, 05 = 5V 12 = 12V, 15 = 15V Outputs S = Single D = Dual