SRM7810 MPD | Alldatasheet
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Key Features: Miniature SIP Case 1.0A Output Current Effi ciency to 93% LM78xx Replacement Wide Input Range Short Circuit Protected Thermal Shutdown Low Noise Low Cost SRM7810 Miniature, 1A Output Non-isolated POL Switching Regulators Output Parameter Conditions Min. Typ. Max. Units Output Voltage Accuracy 3.3V Output Model ±2.0 ±3.5 % Other Models ±2.0 ±3.0 Line Regulation Vin = Min to Max ±0.5 ±0.75 % Load Regulation Iout = 10% to 100% ±0.5 ±1.0 % Ripple & Noise (20 MHz) 25 45 mV P - P Thermal Shutdown See Note 1 150 °C Quiescent Current See Note 2 7 10 mA Temperature Coeffi cient 0.02 %/°C Maximum Capacitive Load 1,000 µF Output Current Limit 3,000 mA Output Short Circuit Continuous (Autorecovery) General Parameter Conditions Min. Typ. Max. Units Isolation Voltage Not Isolated Switching Frequency 335 385 435 kHz Environmental Parameter Conditions Min. Typ. Max. Units Operating Temperature Range Ambient -40 +25 +85 °C Operating Temperature Range Case +100 °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 Case Material Non-Conductive Black Plastic (UL-94V0) Weight 0.07 Oz (2.0g) Reliability Specifi cations Parameter Conditions Min. Typ. Max. Units MTBF MIL HDBK 217F , 25°C, Gnd Benign 2.0 MHours Series MicroPower Direct
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Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: sales@micropowerdirect.com W: www.micropowerdirect.com Electrical Specifi cations Specifi cations typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifi cations subject to change without notice. www.micropowerdirect.com
Notes: 1. Measured at an internal IC junction. 2. Quiescent current is specifi ed at 0% load for Vin = min to max. 3. This regulator is not designed to be used in parallel with another unit to increase output power. 4. The input should not exceed the range given in the model selection chart. Exceeding this limit could damage the unit. Model Selection Guide Notes: All dimensions are typical in inches (mm) Tolerance x.xx = ±0.01 (±0.25) Pin 1 is marked by a “dot” or indentation on the side of the unit Model Number Input Voltage (VDC) Output Effi ciency (%, Typ) Voltage (VDC) Current (mA, Max)Nom. Range Min Vin Max Vin SRM7810-015W 12 4.75 - 18.0 1.5 1,000.0 78 72 SRM7810-018W 12 4.75 - 18.0 1.8 1,000.0 82 76 SRM7810-02W 12 4.75 - 18.0 2.5 1,000.0 87 82 SRM7810-03W 12 4.75 - 20.0 3.3 1,000.0 90 83 SRM7810-05W 12 6.50 - 20.0 5.0 1,000.0 93 85 Mechanical Dimensions Pin 123 Function +Vin Gnd +Vout Pin Connection Characteristic Curves (Effi ciency & Ripple) Effi ciency vs Input Voltage (Full Load) Ripple vs Input Voltage (Full Load) Effi ciency vs Load (Vin = Nom) Ripple vs Load (Vin = Nom) Derating Curve www.micropowerdirect.com MicroPower Direct 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 Notes: 1. C1 is a low ESR ceramic capacitor used to minimize noise at the regulator. A tantalum or low ESR electrolytic capacitor may also be used. 2. C1 & C2 are required and should be mounted as close to the regulator pins as possible. Typical Application Circuit Component Values Model Number Capacitors C1, C3 (µF/V) C2, C4 (µF/V) SRM7810-015W 10 /25 22 / 6.3 SRM7810-018W 10 /25 22 / 6.3 SRM7810-02W 10 /25 22 / 10 SRM7810-03W 10 /25 22 / 16 SRM7810-05W 10 /25 22 / 16