® M78AR-1 Switching Regulator 1A, SIP Package FEATURES ►Industrial Standard SIP-3 Package ►Pin-out compatible with LM78xx Linear Regulators ►Fully Regulated Output Voltage ►Low Ripple & Noise ►Excellent Efficiency up to 95% ►Operating Ambient Temp. Range -40℃ to +86℃ ►Low No Load Power Consumption ►No Min. Load Requirement ►Over Temp. and Short Circuit Protection PRODUCT OVERVIEW The MINMAX M78AR-1 series is a new range of switching regulators designed as a drop-in replacement for old LM78xx linear regulators with low efficiency. 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 6.5 ~ 32 6.5 ~ 32 15 ~ 32 VDC 3.3 5 12 mA 1000 1000 1000 M78AR033-1 M78AR05-1 M78AR12-1 Max. Max. capacitive Load μF 470 470 470 Efficiency (typ.) Efficiency (typ.) @Min. Vin @Max. Vin % 93 94 96 % 87 90 94 Input Specifications Parameter Input Surge Voltage (1 sec. max.) Short Circuit Input Power Input Current Input Filter Conditions @No Load All Models Min. -0.3 ----- Typ. Max. --34 --1.5 1 --Internal Capacitor Unit VDC W mA Min. ----------- Typ. --±0.2 ±0.1 ±0.4 ±0.25 Max. ±2.0 ±0.4 ±0.2 ±0.6 ±0.4 Unit %Vnom. % % % % ----250 ±2 --- 50 75 ----±0.015 mV P-P mV P-P μsec % %/℃ Output Specifications Parameter Output Voltage Setting Accuracy Line Regulation Conditions 3.3V, 5V 12V 3.3V, 5V Io=10% to 100% 12V No minimum Load Requirement 3.3V, 5V --0-20MHz Bandwidth 12V ----50% Load Step Change ----Continuous, Automatic Recovery Vin=Min. to Max. @Full Load Load Regulation Minimum Load Ripple & Noise Transient Recovery Time Transient Response Deviation Temperature Coefficient Short Circuit Protection E-mail:[email protected] 2016/02/24 P2 Tel:886-6-2923150 Page 1 of 4 ® M78AR-1 Switching Regulator 1A, SIP Package General Specifications Parameter Conditions I/O Isolation Voltage Min. Typ. Max. Unit None Switching Frequency --- 420 --- KHz MIL-HDBK-217F@25℃, Ground Benign 9,000,000 --- --- Hours Conditions Min. Typ. Max. Unit Natural Convection -40 --- +86 ℃ Case Temperature --- --- +95 ℃ Storage Temperature -55 --- +125 ℃ --- 150 --- ℃ --- --- 95 % rel. H --- 260 ℃ MTBF(calculated) Environmental Specifications Parameter Operating Ambient Temperature Range (See Power Derating Curve) Thermal Shutdown Internal IC junction Humidity (non condensing) Cooling Natural Convection Lead-free reflow solder process (1.5mm from case for 10Sec.) --- EMC Specifications Parameter Standards & Level Performance Radiation without adding any external components EMI EN55022, FCC part 15 Conduction with external components ESD Radiated immunity Fast transient(4) Conducted immunity PFMF EMS EN61000-4-2 Air±8kV EN61000-4-3 3V/m EN61000-4-4 ±0.5kV EN61000-4-6 3Vrms EN61000-4-8 3A/m Power Derating Curve 100 Output Power (%) 80 Natural Convection 20LFM 60 40 20 0 ~ -40 0 20 40 60 Ambient Temperature C E-mail:[email protected] 2016/02/24 P2 Tel:886-6-2923150 Page 2 of 4 80 100 110 Class A,B(7) A A A A A ® M78AR-1 Switching Regulator 1A, SIP Package Notes 1 2 3 4 5 6 7 8 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 M78AR-1 series can meet EN61000-4-4 by adding a capacitor across the input pins. Suggested capacitor: 22μF/50V(CHEMI-CON KY). That “natural convection” is about 20LFM but is not equal to still air (0 LFM). With a input capacitor 22μF/50V (CHEMI-CON KY) for input voltage >28VDC, the input voltage allows 32VDC, max. To meet EN55022 Class A,B an extemal filter, please contact MINMAX. Specifications are subject to change without notice. Package Specifications Mechanical Dimensions Pin Connections 0.5 [0.02] Pin Function 1 +Vin 2 GND 3 +Vout 3.2 [0.13] 0.25 [0.01] 2x2.54 [2x0.10] 0.70 [0.03] 1 2 3 Bottom View 7.55 [0.30] 0.5 [0.02] 2.0 [0.08] 4.1 [0.16] 10.2 [0.40] 11.5 [0.45] 10.5 [0.41] ►All dimensions in mm (inches) ►Tolerance: X.X±0.5 (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 : 2.2g E-mail:[email protected] 2016/02/24 P2 Tel:886-6-2923150 Page 3 of 4 ® M78AR-1 Switching Regulator 1A, SIP Package Test Setup Peak-to-Peak Output Noise Measurement Test Use a Cout 0.47μF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter. +Vin + +Out Copper Strip Switching Regulator DC Power Source Cout GND - Scope Resistive Load Copper Strip Technical Notes Output Ripple Reduction A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended to use 3.3μF capacitors at the output. + + Out +Vin Switching Regulator DC Power Source Cout Load GND - Maximum Capacitive Load The M78AR-1 series has limitation of maximum connected capacitance on the output. The power module may operate in current limiting mode during start-up, affecting the ramp-up and the startup time. The maximum capacitance can be found in the data sheet. 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. 2016/02/24 P2 Page 4 of 4