® M78A Switching Regulator 0.5A, SIP Package FEATURES ►SIP-Package 11.5x7.55x10.2 mm ►Pin-out compatible with LM78xx Linear Regulators ►Very high Efficiency up tp 97% ►Excellent Line/Loads Regulation ►Low Ripple and Noise ►Short Circuit Protection ►Operating Temp.Range -40°C to +90°C ►Thermal Shutdown ►Low Stand-by Current ►3 Years Product Warranty PRODUCT OVERVIEW The MINMAX M78A series is a new range of switching regulators designed as a drop-in replacement for old LM78xx linear regulators with low efficiency.The very high efficiency of these step-down converters allow an operating temperature up to 80°C at full-load without need of any heatsink. The regulators come in a package which fits in the standard TO-220 footprint of linear regulators. The high efficiency and low stand-by power consumption of these switching regulators offer the designer a new, cost-efficient solution for many applications. Model Selection Guide Model Number Input Voltage Range(6) Output Voltage Output Current VDC VDC 1.5 1.8 2.5 3.3 5 6.5 9 12 15 mA 500 500 500 500 500 500 500 500 500 M78AR015-0.5 M78AR018-0.5 M78AR025-0.5 M78AR033-0.5 M78AR05-0.5 M78AR065-0.5 M78AR09-0.5 M78AR12-0.5 M78AR15-0.5 4.75 ~ 32 6.5 ~ 32 8 ~ 32 11 ~ 32 15 ~ 32 18 ~ 32 Max. Max. capacitive Load µF 220 220 220 220 220 220 220 220 220 Efficiency (typ.) Efficiency (typ.) @Min. Vin @Max. Vin % 73 82 87 91 94 95 96 97 97 % 63 71 77 81 86 88 92 94 95 Input Specifications Parameter Input Surge Voltage (1 sec. max.) Internal Filter Type Internal Power Dissipation Short Circuit Input Power Input Current Conditions Min. -0.3 Typ. --- Max. 34 Unit VDC ------- ----5 0.4 1.5 --- W W mA Min. ----------- Typ. ±2.0 ±0.2 ±0.1 ±0.4 ±0.25 Max. ±3.0 ±0.4 ±0.2 ±0.6 ±0.4 Unit %Vnom. % % % % ----100 ±2 --- 30 40 ----±0.015 mV P-P mV P-P µsec % %/℃ Capacitor @No Load Output Specifications Parameter Output Voltage Setting Accuracy 1.5V to 6.5V 9V to 15V 1.5V to 6.5V Io=10% to 100% 9V to 15V No minimum Load Requirement 1.5V to 6.5V --0-20MHz Bandwidth 9V to 15V ----50% Load Step Change ----Continuous Line Regulation Vin=Min. to Max. Load Regulation Min.Load Ripple & Noise Transient Recovery Time Transient Response Deviation Temperature Coefficient Short Circuit Protection E-mail:[email protected] 2014/04/15 REV:6 Conditions Tel:886-6-2923150 Page 1 of 3 ® M78A Switching Regulator 0.5A, SIP Package General Specifications Parameter Conditions I/O Isolation Voltage Min. Typ. Max. Unit None Switching Frequency 280 330 380 KHz 2,000,000 --- --- Hours Conditions Min. Typ. Max. Unit Natural Convection -40 --- +90 ℃ Case Temperature --- --- +100 ℃ Storage Temperature -55 --- +125 ℃ --- 160 --- ℃ Humidity (non condensing) --- --- 95 % rel. H Lead-free reflow solder process(1.5mm from case for 10Sec.) --- --- 260 ℃ MTBF(calculated) MIL-HDBK-217F@25℃, Ground Benign Environmental Specifications Parameter Operating Ambient Temperature Range (See Power Derating Curve) Thermal Shutdown Internal IC junction EMC Specifications Parameter Conducted EMI Radiated Emissions ESD Radiated immunity Fast transient (4) Conducted immunity Magnetic Field Immunity Standards & Level Compliance to EN55022 and FCC part 15 EN55022 EN61000-4-2 air±8KV EN61000-4-3 3V/m EN61000-4-4 ±0.5KV EN61000-4-6 3Vrms EN61000-4-8 3A/m Performance Class B (See Page 3) Class B Class A Class A Class A Class A Class A Power Derating Curve Notes 1 2 3 4 5 6 7 Specifications typical at Ta=+25℃, resistive load, nominal input voltage, rated output current unless otherwise noted. Other input and output voltage may be available, please contact factory. We recommend to protect the converter by a slow blow fuse in the input supply line. The M78A series can meet EN61000-4-4 by adding a capacitor across the input pins. Suggested capacitor CHEMI-CON KY 330µF/100V. That “natural convection” is about 20LFM but is not equal to still air (0 LFM). With a input capacitor 22µF/50V for input voltage >28VDC, the input voltage allows 32VDC, max. Specifications are subject to change without notice. E-mail:[email protected] 2014/04/15 REV:6 Tel:886-6-2923150 Page 2 of 3 ® M78A Switching Regulator 0.5A, SIP Package EMI-Filter to meet EN 55022, class A, class B; FCC part 15 ,level A L1 +Vout +Vin M78A Module C1 C2 C3 Load GND Class C1 C2 C3 L1 Class A --- 4.7µF/50V 1206 MLCC 4.7µF/50V 1206 MLCC Class B 4.7µF/50V 1206 MLCC 4.7µF/50V 1206 MLCC 4.7µF/50V 1206 MLCC Wurth Elektronik NO. 744774033 Wurth Elektronik NO. 74477410 Package Specifications Mechanical Dimensions Pin Connections Function 1 +Vin 2 GND 3 +Vout 4.1 [0.16] 0.5 [0.02] Pin 0.70 [0.03] 1 2 3 Bottom View 7.55 [0.30] 0.25 [0.01] 2x2.54 [2x0.10] 2.0 [0.08] 0.5 [0.02] 3.2 [0.13] 10.2 [0.40] 11.5 [0.45] 10.5 [0.41] ►All dimensions in mm ►Tolerance: X.X±0.5 (inches) (X.XX±0.02) X.XX±0.25 ( X.XXX±0.01) ►Pins ±0.05(±0.002) Physical Characteristics Case Size : 11.5x7.55x10.2mm (0.45x0.30x0.40 inches) Case Material : Non-Conductive Black Plastic (flammability to UL 94V-0 rated) Pin Material : Alloy 42 Weight : 1.95g 18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan Tel: 886-6-2923150 Fax: 886-6-2923149 E-mail: [email protected] Minmax Technology Co., Ltd. 2014/04/15 REV:6 Page 3 of 3