® M78SA Switching Regulator 0.5A, SMD Package FEATURES ►SMD-Package 15.3x9.6x8.8 mm ►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 M78SA 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 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 Output Voltage Input Voltage Range(6) VDC M78SAR015-0.5 M78SAR018-0.5 M78SAR025-0.5 M78SAR033-0.5 M78SAR05-0.5 M78SAR065-0.5 M78SAR09-0.5 M78SAR12-0.5 M78SAR15-0.5 4.75 ~ 32 6.5 ~ 32 8 ~ 32 11 ~ 32 15 ~ 32 18 ~ 32 Output Current Normal Adjust Range(8) Max. VDC 1.5 1.8 2.5 3.3 5 6.5 9 12 15 VDC 1.4~2.5 1.5~3 1.5~3 3~5.5 3~8 3.3~11 4.5~12.6 4.5~13.5 4.5~15.5 mA 500 500 500 500 500 500 500 500 500 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 Conditions Min. Typ. Max. Unit -0.3 --- 34 VDC Internal Power Dissipation --- --- 0.4 W Short Circuit Input Power --- --- 1.5 W @No Load --- 5 --- mA Conditions 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 % %/℃ Input Surge Voltage (1 sec. max.) Internal Filter Type Capacitor Input Current 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 Tel:886-6-2923150 Page 1 of 4 ® M78SA Switching Regulator 0.5A, SMD Package General Specifications Parameter I/O Isolation Voltage Switching Frequency MTBF(calculated) Moisture Sensitivity Level (MSL) Conditions Min. Typ. Max. Unit 280 2,000,000 330 --- 380 --- KHz Hours Typ. Max. Unit --- --- 35 µA Conditions Min. Typ. Max. Unit Natural Convection -40 --- +90 ℃ --- --- +100 ℃ -55 --- +125 ℃ --- 160 --- ℃ --- --- 95 % rel. H none MIL-HDBK-217F@25℃, Ground Benign IPC/JEDEC J-STD-020D.1 Level 2 Remote On/Off Control Parameter Conditions Min. Converter On Open or 2.4V<Vr<5V Converter Off GND or 0<Vr<1.6V Standby Input Current Supply Off & 24 Vin Environmental Specifications Parameter Operating Ambient Temperature Range (See Power Derating Curve) Case Temperature Storage Temperature Thermal Shutdown Internal IC junction Humidity (non condensing) Lead-free reflow solder process IPC/JEDEC J-STD-020D.1 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 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 M78SA 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. Input voltage must be higher than output voltage set:>1.5V for 3.3V~5V and >3V for 6.5V~15V. E-mail:[email protected] 2014/04/15 REV:6 Tel:886-6-2923150 Page 2 of 4 ® M78SA Switching Regulator 0.5A, SMD Package Adjustment Resistor Values M78SAR015-0.5 M78SAR018-0.5 M78SAR025-0.5 M78SAR033-0.5 M78SAR05-0.5 M78SAR065-0.5 M78SAR09-0.5 M78SAR12-0.5 1.5VDC 1.8VDC 2.5VDC 3.3VDC 5.0VDC 6.5VDC 9.0VDC 12VDC Vout(nom.) Vout(adj) R1 1.4 (V) 1 KΩ R2 1.5 (V) R1 R2 R1 3KΩ 1.8 (V) 6.49 KΩ 2.5 (V) 0.47 KΩ R2 R1 R2 44.2KΩ 88.4KΩ R1 R2 R1 R2 R1 R2 R1 M78SAR15-0.5 15VDC R2 R1 R2 200Ω 12KΩ 11.8KΩ 3.0 (V) 4.64KΩ 17KΩ 3.3 (V) 3.6 (V) 60.4KΩ 27KΩ 15KΩ 42KΩ 21.5KΩ 3.9 (V) 28KΩ 58KΩ 30.1KΩ 4.5 (V) 11.3KΩ 180KΩ 56.3KΩ 26KΩ 17KΩ 10.5 KΩ 4.9 (V) 7.15KΩ 850KΩ 78.7KΩ 36KΩ 24KΩ 15.8 KΩ 5.0 (V) 6.34KΩ 86KΩ 39KΩ 26KΩ 17.4 KΩ 5.1 (V) 5.9KΩ 231KΩ 97KΩ 42KΩ 28KΩ 18.7 KΩ 5.5 (V) 3.9KΩ 56.2KΩ 154KΩ 56KΩ 36KΩ 24.9 KΩ 6.5 (V) 14KΩ 8.0 (V) 2.32KΩ 22.6KΩ 112KΩ 63KΩ 42.2 KΩ 400KΩ 125KΩ 78.7 KΩ 9.0 (V) 9.53KΩ 200KΩ 113 KΩ 10 (V) 3.92KΩ 54.9KΩ 345KΩ 160 KΩ 11 (V) 825Ω 16.5KΩ 740KΩ 232 KΩ 12 (V) 3.6KΩ 12.6 (V) 0Ω 13.5 (V) 340 KΩ 180KΩ 464 KΩ 57.6 KΩ 787 KΩ 15.5 (V) 300 KΩ +Vin +Vo Switching Regulator R1 On/Off Adj R2 -Vin -Vo EMI-Filter to meet EN 55022, class A, class B; FCC part 15 ,level A L1 +Vout +Vin M78SA Module C1 C2 C3 Load GND Class C1 C2 C3 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 E-mail:[email protected] 2014/04/15 REV:6 Tel:886-6-2923150 Page 3 of 4 L1 Wurth Elektronik NO. 744774033 Wurth Elektronik NO. 74477410 ® M78SA Switching Regulator 0.5A, SMD Package Package Specifications Connecting Pin Patterns 2.54x4 [0.10x4] 6 TOP View 1 2 3 4 5 9.6 [0.38] 7 11.7 [0.46] 8 9.6 [0.38] 9 10.16 [0.40] 12.35 [0.49] 10 2.1 [0.08] 15.3 [0.60] 2.57 [0.10] 13.8 [0.54] Mechanical Dimensions 0.44 [0.02] 0.55 [0.02] 2.54 [0.10] 9.24 [0.36] 8.8 [0.35] 1.30 [0.05] 1.2 [0.05] S SEATING PLANE 4 0~ ►All dimensions in mm 0.1 S ►Tolerance: X.X±0.5 (inches) (X.XX±0.02) X.XX±0.25 ( X.XXX±0.01) ►Pins ±0.05(±0.002) Pin Connections Pin 1 Function +Vin 2 +Vin 3 GND 4 +Vout 5 +Vout 6 Vadj. 7 GND 8 GND 9 GND 10 Remote On/Off Physical Characteristics Case Size : 15.3x9.6x8.8mm (0.60x0.38x0.35 inches) Case Material : Non-Conductive Black Plastic (flammability to UL 94V-0 rated) Pin Material : phosphor bronze Weight : 1.7g 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 4 of 4