The Newest Chiplet SiP Switching Regulators K78-R4 Series

Product catalog summary

Overview: The K78_MT-500R4 series by MORNSUN is a range of high-efficiency DC/DC converters designed for industrial control, instrumentation, and electric power applications. These converters are characterized by their compact size, high efficiency, and protective features.

Selection Guide: The series includes various models such as K7803MT-500R4, K7805MT-500R4, K78X6MT-500R4, K7809MT-500R4, K7812MT-500R4, and K7815MT-500R4. Each model supports different input voltage ranges and output specifications, with efficiencies ranging from 71% to 92% depending on the input voltage and load conditions. Capacitive load capacities vary from 470µF to 680µF.

Input Specifications: The converters operate with a no-load input current of 0.1mA and feature a capacitance filter. They are not protected against reverse polarity. The control pin can turn the module on or off, with an off-state input current of 240µA.

Output Specifications: The output voltage accuracy is within ±2% to ±4% depending on the model. The converters offer linear regulation of ±0.2% and load regulation of ±0.4%. Ripple and noise are maintained between 20 to 45 mVp-p. They also feature continuous short-circuit protection with self-recovery.

General Specifications: The operating temperature range is from -40℃ to +105℃, with a storage temperature range of -55℃ to +125℃. The converters have a switching frequency of 2.0 MHz and an MTBF of 9152 K hours. They are housed in a black epoxy resin case, measuring 9.00 x 7.00 x 3.10mm, and weigh 0.58g.

EMC and Compliance: The converters comply with CISPR32/EN55032 Class B standards for emissions and various IEC/EN standards for immunity, including ESD, RS, CS, EFT, and surge protection. Recommended circuits for EMC compliance are provided.

Design and Application: Typical application circuits are provided for both positive and negative outputs. The document includes guidance on selecting capacitors and resistors for voltage adjustment and EMC compliance. The converters are not suitable for hot swap or parallel output configurations.

Packaging and Additional Information: The converters are available in tape/reel packaging. Additional product customization services are available upon request. The document advises consulting MORNSUN's application notes for further details.

Catalog excerpts

The Newest Chiplet SiP Switching Regulators K78-R4 Series-1

DC/DC ConverterK78_MT-500R4 Series Wide input voltage non-isolated and regulated single output Patent Protection RoHS FEATURES • Ultra-small, ultra-thin DFN package(9.00 x 7.00 x 3.10mm) • Operating ambient temperature range: -40C to +105 °C • High efficiency up to 92% • No-load input current as low as 0.1 mA • Output short-circuit protection • AEC-Q100 approved (under testing) K78_MT-500R4 series are high efficiency switching regulators. The converters feature high efficiency, low loss and short-circuit protection in a compact DFN package. These products are widely used in applications such as industrial control, instrumentation and electric power. MORNSUN Guangzhou Science & Technology Co., Ltd. 2020.04.15-A/0 Page 1 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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The Newest Chiplet SiP Switching Regulators K78-R4 Series-2

DC/DC ConverterK78_MT-500R4 Series Note: *The positive output ctrl pin voltage is referenced to input GND; Negative output ctrl pin voltage is referenced to -Vo. MORNSUN Guangzhou Science & Technology Co., Ltd. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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The Newest Chiplet SiP Switching Regulators K78-R4 Series-3

Design Reference 1. Typical application Part No. MORNSUN Guangzhou Science & Technology Co., Ltd. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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The Newest Chiplet SiP Switching Regulators K78-R4 Series-4

DC/DC Converter K78_MT-500R4 Series 2. EMC compliance circuit Part No. Notes: For EMC tests we use Part ® in Fig.3 for immunity and part ® for emissions test. Selecting based on needs. 3. Trim Function for Output Voltage Adjustment (open if unused) V„ MORNSUN Guangzhou Science & Technology Co., Ltd. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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The Newest Chiplet SiP Switching Regulators K78-R4 Series-5

4. For additional information please refer to DC-DC converter applicat www.mornsun-power.com Dimensions and Recommended Layout MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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The Newest Chiplet SiP Switching Regulators K78-R4 Series-6

DC/DC ConverterK78_MT-500R4 Series Notes: 1. For additional information on Product Packaging please refer to www.mornsun-power.com. Tape/Reel packaging bag number: 58240017; 2. The maximum capacitive load offered were tested at nominal input voltage and full load; 3. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25°C, humidity<75%RH with nominal input voltage and rated output load; 4. All index testing methods in this datasheet are based on our company corporate standards; 5. We can provide product customization service, please contact our technicians...

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