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 -40C to +85C temperature range 2 input output output output ripple efficiency MODEL 1 voltage voltage current power & noise typ range max max max typ (Vdc) (Vdc) (Vdc) (mA) (W) (mVp-p) (%) 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 F multilayer low ESR ceramic capacitor. 2. At min Vin. 3. All specifications measured at: Ta=25C, nominal input voltage, rated output load, and after warm up unless otherwise specified. PART NUMBER KEY P78A XX - 1000 Base Number Output Voltage Output Current cui.comAdditional 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 min typ max units 3.3 Vdc model 7 24 28 Vdc operating input voltage 5 Vdc model 8 24 28 Vdc no load input current Vin = 24 Vdc 1.5 mA OUTPUT parameter conditions/description min typ max units 1 maximum capacitive load 220 F line regulation measured from low to high line, full load 1 % load regulation measured from 10~100% load, typical Vin 1.5 % voltage accuracy 3 5 % switching frequency Vin = 12 Vdc 330 kHz Note: 1. Maximum capacitive load is tested at nominal input voltage and full load. PROTECTIONS parameter conditions/description min typ max units over current protection output shut down, auto recovery 200 % short circuit protection output shut down, auto recovery SAFETY AND COMPLIANCE parameter conditions/description min typ max units MTBF as per MIL-HDBK-217F, full load, 25 C 3,875,000 hours RoHS 2011/65/EU ENVIRONMENTAL parameter conditions/description min typ max units operating temperature see derating curve -40 85 C storage temperature -55 125 C operating humidity non-condensing 95 % SOLDERABILITY parameter conditions/description min typ max units wave soldering see wave solder profile 260 C Note: 2. The wave solder profile is measured on lead temperature. 3. Need to keep the solder parts internal temperature less than about 210C. cui.com