P78A05-1000

Additional Resources: Product Page | 3D Model | PCB Footprint date 09/21/2021 page 1 of 6 SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • • up to 1 A current output pin compatible with LM78XX linear regulators non-isolated switching regulator wide input voltage range efficiency up to 91% low ripple and noise short circuit protection ultra-compact SIP3 package low profile -40°C to +85°C temperature range MODEL input voltage output voltage output current output power ripple & noise1 efficiency2 typ (Vdc) range (Vdc) (Vdc) max (mA) max (W) max (mVp-p) typ (%) P78A03-1000 24 7~28 3.3 1000 3.3 120 87 P78A05-1000 24 8~28 5 1000 5 120 91 Notes: 1. At full load, nominal input, 20 MHz bandwidth oscilloscope, output terminated with a 0.1 µF multilayer low ESR ceramic capacitor. 2. At min Vin. 3. All specifications measured at: Ta=25°C, nominal input voltage, rated output load, and after warm up unless otherwise specified. PART NUMBER KEY P78A XX - 1000 Base Number Output Voltage cui.com Output Current Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER date 09/21/2021 │ page 2 of 6 INPUT parameter conditions/description operating input voltage 3.3 Vdc model 5 Vdc model no load input current Vin = 24 Vdc min typ max units 7 8 24 24 28 28 Vdc Vdc 1.5 mA OUTPUT parameter conditions/description min typ maximum capacitive load 1 line regulation measured from low to high line, full load load regulation measured from 10~100% load, typical Vin voltage accuracy switching frequency Note: ±3 Vin = 12 Vdc max units 220 μF ±1 % ±1.5 % ±5 % 330 kHz 1. Maximum capacitive load is tested at nominal input voltage and full load. PROTECTIONS parameter conditions/description min over current protection output shut down, auto recovery short circuit protection output shut down, auto recovery typ max units 200 % SAFETY AND COMPLIANCE parameter conditions/description MTBF as per MIL-HDBK-217F, full load, 25 °C min RoHS 2011/65/EU typ max 3,875,000 units hours ENVIRONMENTAL parameter conditions/description min operating temperature see derating curve storage temperature operating humidity typ max units -40 85 °C -55 125 °C 95 % max units 260 °C non-condensing SOLDERABILITY parameter conditions/description wave soldering see wave solder profile Note: min 2. The wave solder profile is measured on lead temperature. 3. Need to keep the solder parts internal temperature less than about 210°C. cui.com typ Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER date 09/21/2021 │ page 3 of 6 MECHANICAL parameter conditions/description dimensions 11.6 x 8.5 x 10.4 min case material non-conductive black plastic (UL94V-0) potting material epoxy (UL94V-0) typ max units mm weight 2 g MECHANICAL DRAWING units: mm tolerance: XX.X=±0.50 mm XX.XX=±0.25 mm 11.6 2 GND 3 +Vout xxxx xxxx Marking 1 2 3 0.25 0.7 typ. Ø1.00 +0.15/-0 2.54 +Vin 0.51 1 8.5 4.10 Function 2.0 PIN 10.4 PIN CONNECTIONS 2.54 3.21 5.08 Recommended PCB Layout Top View cui.com Additional Resources: Product Page | CUI Inc │ SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 09/21/2021 │ page 4 of 6 DERATING CURVE EFFICIENCY CURVES cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER date 09/21/2021 │ page 5 of 6 APPLICATION CIRCUIT Figure 1 Table 1 Optional External Components Notes: C1 10μF MLCC C2 10μF MLCC 1. To protect the converter during power-up, use soft start power supply. 2. The converter cannot be used as a positive to negative converter. PACKAGING units: mm Tube Size: 520 x 16.5 x 9.3 mm QTY: 42 pcs 16.5±0.5 12.1±0.5 9.3±0.5 0.5±0.2 4.9±0.5 cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: P78A-1000 │ DESCRIPTION: DC-DC CONVERTER date 09/21/2021 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 05/16/2016 1.01 company logo updated 04/14/2021 1.02 derating curve, efficiency curves and application circuit updated 09/21/2021 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com techsupport@cui.com CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.