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www.micropowerdirect.com MicroPower Direct

292 Page Street

Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: sales@micropowerdirect.com W: www.micropowerdirect.com Key Features:  Effi ciency to 95%  0.5A Output Current  Miniature Construction  EN 60950 Approved  LM78xx Replacement  Wide Input Range  Negative Output Capability  Short Circuit Protected  Low Noise  Low Low Cost MSR7805WUP Low Cost, Non-isolated UnPotted, Single Output POL Switching Regulators Input Parameter Conditions Min. Typ. Max. Units No-Load Input Current Positive Ouput Connection 0.2 1.5 mA Input Filter Capacitor Filter Reverse Polarity Input Not Allowed, Could Damage the Unit Output Parameter Conditions Min. Typ. Max. Units Output Voltage Accuracy 3.3 VDC Output ±2.0 ±4.0 % All Other Outputs ±2.0 ±3.0 Line Regulation VIN = Min to Max ±0.2 ±0.4 % Load Regulation IOUT = 10% to 100% ±0.4 ±0.6 % Ripple & Noise (20 MHz) See Note 2 20 75 mV P - P Temperature Coeffi cient 0.03 %/°C Transient Recovery Time, See Note 3 25% Load Step Change 0.2 1.0 mS Transient Response Deviation 50 250 mV Output Short Circuit Continuous (Autorecovery) General Parameter Conditions Min. Typ. Max. Units Isolation Voltage Not Isolated Switching Frequency 550 850 kHz EMI Characteristics Parameter Standard Criteria Level Radiated Emissions, See Note 4 EN 55022 B Conducted Emissions, See note 4 EN 55022 B ESD EN 61000-4-2 B ±6 kv Air, ±4 kV Contact RS EN 61000-4-3 A 10V/m EFT, See Note 5 EN 61000-4-4 B ±1 kV Surge, See Note 5 EN 61000-4-5 B ±1 kV CS EN61000-4-6 A 3V rms Environmental Parameter Conditions Min. Typ. Max. Units Operating Temperature Range Ambient -40 +25 +85 °C Storage Temperature Range -55 +125 °C Lead Temperature 1.5 mm From Case For 10 Sec 300 °C Cooling Free Air Convection Humidity RH, Non-condensing 95 % Physical Size See Mechanical Diagram (Page 4) Weight 0.035 Oz (1.0g) Reliability Specifi cations Parameter Conditions Min. Typ. Max. Units MTBF MIL HDBK 217F , 25°C, Gnd Benign 2.0 MHours Safety Standards EN 60950 Series Electrical Specifi cations Specifi cations typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifi cations subject to change without notice.

292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com www.micropowerdirect.com Notes: 1. For many applications, no external components are required. If the input is over 30V, a 22 µ F/50V input capacitor (C1) is required. See the typical application note below. 2. Output ripple is measured with a nominal input and is specifi ed for a load range of 10% to 100%. When measuring output ripple, two external capacitors (1 µF and 10 µF) must be placed from the VOUT to the Gnd pins. 3. Transient recovery is measured to within a 1% error band for a load step change of 75% to 100%. 4. The unit may not meet emissions to class A without the addition of external capacitors (C 1, C2 & C3) as shown in the typical circuit 4 diagram on page 4. 5. The unit meets EFT & surge EMS specifi cations with the addition of external components as shown in the typical circuit 4 diagram on page 4. 6. This regulator is not designed to be used in parallel with another unit to increase output power. 7. A reverse polarity connection on the input could damage the unit. 8. The input should not exceed the range given in the model selection chart. Exceeding this limit could damage the unit. Model Selection Guide Model Number Input Voltage (VDC) Output Effi ciency (%, Typ) Capacitive Load (µF , Max) Fuse Rating Slow Blow (mA, Max Voltage (VDC) Current (mA, Max)Nom. Range Min VIN Max VIN MSR7805-033WUP 24 4.75 - 36.0 3.3 500.0 86 80 680 1,000 MSR7805-05WUP 24 6.50 - 36.0 5.0 500.0 90 84 680 1,000 12 7.00 - 31.0 -5.0 -300.0 80 81 330 MSR7805-12WUP 24 15.0 - 36.0 12.0 500.0 94 91 680 1,000 12 8.00 - 24.0 -12.0 -150.0 84 85 330 MSR7805-15WUP 24 19.0 - 36.0 15.0 500.0 95 93 680 1,000 12 8.00 - 21.0 -15.0 -150.0 85 87 330 Derating Curve Typical Application Circuit 1, Positive Output For many applications, the MSR7805-xxWUP can be used without external components. However, if the application requires meeting EMC/EMI stan- dards or operation at inputs over 30V, a minimum of external components is needed. A typical connection (for a positive output voltage) is shown at right. Here, C 1 has been added to improve stability over the input range (and over the operating temperature range). Capacitor C is added to reduce the output ripple. Suggested values for these capacitors are given in the “Component Values” table below. These capacitors are ceramic and should be placed as close to the unit as possible. Tantalum or low ESR electrolytic capacitors may also be used. If very low noise is required, the LC fi lter may be added (L OUT & C OUT). The recommended value for LOUT is 10 µ H - 47 µ H. For COUT, a 22 µ F. i s recommended. To meet EMI standards, see the typical circuit 4 diagram on page 4. To produce a negative output, connect the output to pin 2 and ground to pin 3, as shown in the diagram above. Typical Application Circuit 2, Negative Output Model Number C1 C2 MSR7805-033WUP 22 µF/50V 22 µF/6.3V MSR7805-05WUP 22 µF/50V 22 µF/10V MSR7805-12WUP 22 µF/50V 22 µF/25V MSR7805-15WUP 22 µF/50V 22 µF/25V

MicroPower Direct • 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com www.micropowerdirect.com Characteristic Curves, Negative Output Effi ciency vs Input Voltage - (Full Load) Effi ciency vs Input Voltage - (Full Load) Effi ciency vs Output Power - (VIN = Nominal) Effi ciency vs Output Power - (VIN = Nominal) Characteristic Curves, Positive Output Model Number C1/C3 C2/C4 LDM1 MSR7805-033WUP 10 µF/50V 10 µF/6.3V 10 µH MSR7805-05WUP 10 µF/50V 10 µF/6.3V 10 µH MSR7805-12WUP 10 µF/50V 10 µF/6.3V 10 µH MSR7805-15WUP 10 µF/50V 10 µF/6.3V 10 µH Typical Application Circuit 3, Pos/Neg Output Typical application circuit 3 shows two units confi gured with a common input connection to produce positive and negative outputs. The inductor LDM1 is added to reduce interference between the units. The recommended values for all the external components are given in the table at right.

We Power Your Success - For Less! 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com www.micropowerdirect.com Mechanical Dimensions Positive Output Pin Function 1 +VIN

2 GND

3 VOUT

2 VOUT

3 GND

Notes:  All dimensions are typical in inches (mm)  Tolerance x.xx = ±0.01 (±0.25)  Pin 1 is marked by a “dot” on the front of the unit Typical Application Circuit 2: External EMC Components The diagram above illustrates a typical connection of the MSR7805WUP series for applications that require meeting EMC standards. Some notes on this diagram (starting with the input circuit) are: 1. It is recommended that an external fuse be used. The recommended fuse is shown in the model chart on page 2. 2. An external MOV is recommended on the input to protect the unit in the event of a surge. A recommended value is given in the table at right. 3. Recommended values for components are: Component Value Component V alue MOV S20K30 LDM 2 12 µH LDM1 82 µHC 1 See Note 4 C3 680 µF/50V C 2 See Note 4 C4 4.7 µF/50V 4. The values for C 1 and C2 are given in the “Component Values” table on page 2. 5. The LC fi lter LOUT & COUT is only needed if very low ripple is required. Recommended values for these components are given on page 2. Packing Carton Notes: 1. MSR7805WUP units are shipped in a product carton (inner carton) which is then paced into a shipping carton. The shipping carton will hold two product cartons. 2. Products are placed into individual slots cut into foam trays. A foam cover is then secured to the tray. Each tray will hold 140 units. Up to four trays will fi t into a product carton.