www.make-ps.com E-mail:[email protected] Single Output DC/DC Converter Series M-78B-NZ FEATURES: 3 Pin SIP Package Pin-out compatible with LM78XX Linear Regulators Continuous Short Circuit Protection Non-Isolated Regulated Output Operating temperature -40°C to +85°C Wide input range Very High Efficiency Up To 95% Low ripple and noise Up to 9.75 Watt | DC-DC Converter Models Model Input Voltage (V) Output Voltage (V) Output Current max (A) 4.75-18 4.75-18 6.5-18 8-18 2.5 3.3 5 6.5 1.5 1.5 1.5 1.5 M-78B2.5-NZ M-78B3.3-NZ M-78B5.0-NZ M-78B6.5-NZ Efficiency Vin Min (%) 88 91 93 95 Efficiency Vin Max (%) 85 88 91 93 NOTE: All specifications in this datasheet are measured at an ambient temperature of 25°C, humidity<75%, nominal input voltage and at rated output load unless otherwise specified. Input Specifications Input Specifications Voltage range Filter Quiescent Current Short Circuit consumption Nominal Vin=(LL-HL) at full load Typical Maximum See the table above Capacitor 5 0.5 Units VDC 10 1.8 mA W Maximum Units Output Specifications Output Specifications Voltage accuracy Short Circuit protection Short circuit restart Output current limit Thermal shutdown Dynamic load stability Line voltage regulation Load voltage regulation Temperature coefficient Ripple & Noise Maximum Capacitive Load Conditions Typical 100% load ±3 Continuous. Auto recovery % 5 Internal IC junction 10-100% load Vin=(LL-HL) at full load 10-100% load -40°C to +85°C ambient 20MHz Bandwidth 1000 A ºC mV % % o %/ C mV p-p µF Maximum Units 100 KHz o C o C o C 150 ±100 ±0.75 ±1 ±0.02 45 General Specifications Input Specifications Switching frequency Operating temperature Storage temperature Max Case temperature Cooling Humidity Case material Weight Dimensions (L x W x H) MTBF Soldering Temperature Conditions Typical 100% load With derating above 71°C 340 -40 to +85 -55 to +125 Free air convection 95 Non-conductive black plastic (UL94-V0 rated) 4 0.45 X 0.35 X 0.69 inch 11.50 X 8.90 X 17.50 mm > 2 000 000 hrs (MIL-HDBK-217F, Ground Benign, t=+25°C) 1.5 mm from case for 10 sec 300 1 of 4 % g o C www.make-ps.com E-mail:[email protected] Pin Out Specifications Pin Single 1 2 3 +Vin GND +Vout Footprint Front View 11.50 (0.45 2.54 (0.10) Dimensions 8.90 (0.35) Ø 1.0 +0.15/-0 (Ø 0.04 + 0.006/-0 Make-Ps 2 0.50 (0.024) 2.54 (0.10) DIV: 2.54 (0.1) Dimensions are typical values: mm (inch) General Tolerance: ± 0.25 (± 0.01) Pin Tolerance: ± 0.1 (± 0.004) 3 Bottom View 2.15 (0.09) 0.30 (0.012) 4.10 (0.16) 1 3.21 (0.13) 2.54 (0.10) 0.50 (0.024) 17.50 (0.69) Side View 2 of 4 www.make-ps.com E-mail:[email protected] Derating Free Air Convection 71º C Output Power (%) 100 80 Safe Operating Area 60 40 20 0 - 40 - 20 0 20 40 60 80 85 100 Ambient Temperature º C Typical Application Circuits M-78B-Z C1: A low ESR capacitor is required to keep the noise of the converter to a minimum. Ceramic capacitors are recommended with typical value is 10µF / 25V. C2: Installation of C2 is recommended with typical value of 22µF / 16V ceramic for 5V and 6.5V output signal and 22µF / 6.3V ceramic for 2.5V and 3.3V output signal. NOTE: This part is not designed for parallel operation. 3 of 4 www.make-ps.com E-mail:[email protected] Dual Output Connection 3 1 +Vin M-78B-Z C1 10uF +Vout C2 2 22uF GND GND 3 1 M-78B-Z C1 C2 2 22uF 10uF -Vout Input Filter M-78B-Z Output Filter 10uH ~ 47uH 3 1 C1 10uF M-78B-Z 2 +Vout C1 C1 10uF 10uF C2 22uF GND GND 4 of 4