Additional Resources: Product Page 3D Model PCB Footprint date 09/21/2021 page 1 of 6 SERIES: VX78-1000R DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR FEATURES wide input pin-out compatible with linear regulators encapsulated UL & CSA approved high efficiency up to 96% no-load input current as low as 0.2 mA wide operating temp: -40C to +85C supports negative output short circuit protection on the output EN 62368-1 input output output output ripple efficiency MODEL 1 2 voltage voltage current power & noise typ range max max max typ (Vdc) (Vdc) (Vdc) (mA) (W) (mVp-p) (%) VX7803-1000R 24 6~36 3.3 1000 3.3 75 90 24 8~36 5 1000 5 75 93 VX7805-1000R 12 8~27 -5 -500 2.5 75 86 VX7809-1000R 24 13~36 9 1000 9 75 95 24 16~36 12 1000 12 75 96 VX7812-1000R 12 8~20 -12 -300 3.6 75 89 24 20~36 15 1000 15 75 96 VX7815-1000R 12 8~18 -15 -300 4.5 75 89 Note: 1. For input voltage exceeding 30 VDC, an input capacitor of 22uF/50V is required 2. 20MHz bandwidth, nominal input, 20%-100% load. With light loads at or below 20%, ripple and noise for 3/3V/5V output parts increases to 100mVp-p and for 9V/12V/15V output parts to 2%Vo max. PART NUMBER KEY VX78XX-1000R Base Number Output Voltage Output Current cui.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Inc SERIES: VX78-1000R DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/21/2021 page 2 of 6 INPUT parameter conditions/description min typ max units filter capacitor filter no-load input current positive outputs 0.1 1 mA OUTPUT parameter conditions/description min typ max units for positive output applications 680 F maximum capacitive load for negative output applications 330 F at full load, input voltage range voltage accuracy 3.3 Vdc output model 2 4 % all other models 2 3 % line regulation at full load, input voltage range 0.2 0.4 % load regulation at nominal input, 10~100% load 0.4 0.6 % at nominal input voltage, full load switching frequency 3.3/5 Vdc output models 420 520 620 kHz all other models 580 680 780 kHz transient recovery time at nominal input voltage, 25% load step change 0.1 1 ms transient response deviation at nominal input voltage, 25% load step change 50 300 mV temperature coefficient Operating ambient temperature -40C to +85C 0.03 %/C PROTECTIONS parameter conditions/description min typ max units short circuit protection continuous, auto recovery SAFETY AND COMPLIANCE parameter conditions/description min typ max units certified to 62368-1: EN safety approvals certified to 60950: UL conducted emissions CISPR22/EN55022, class B (external circuit required, see Figure 4-b) radiated emissions CISPR22/EN55022, class B (external circuit required, see Figure 4-b) ESD IEC/EN61000-4-2, contact 4kV, criteria B radiated immunity IEC/EN61000-4-3, 10V/m, criteria A EFT/burst IEC/EN61000-4-4, 1kV, criteria B (external circuit required, see Figure 4-a) surge IEC/EN61000-4-5, line-line 1kV, criteria B (external circuit required, see Figure 4-a) conducted immunity IEC/EN61000-4-6, 3 Vr.m.s, criteria A MTBF as per MIL-HDBK-217F, 25C 2,000,000 hours RoHS yes cui.com