VX7805-1000

Additional Resources: Product Page | 3D Model | PCB Footprint date 09/21/2021 page 1 of 7 SERIES: VX78-1000 │ 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: -40°C to +85°C supports negative output short circuit protection on the output EN 62368-1 MODEL input voltage1 output voltage output current output power ripple & noise2 efficiency3 typ (Vdc) range (Vdc) (Vdc) max (mA) max (W) max (mVp-p) typ (%) VX7803-1000 24 6~36 3.3 1000 3.3 75 90 VX7805-1000 24 12 8~36 8~27 5 -5 1000 -500 5 2.5 75 75 93 86 VX78039-1000 24 13~36 9 1000 9 75 95 VX78012-1000 24 12 16~36 8~20 12 -12 1000 -300 12 3.6 75 75 96 89 VX7815-1000 24 12 20~36 8~18 15 -15 1000 -300 15 4.5 75 75 96 89 Notes: 1. For input voltages higher than 30 Vdc, a 22 µF / 50 V input capacitor is required. 2. Tested at nominal input, 20~100% load, 20 MHz bandwidth, with 10 µF electrolytic and 1 µF ceramic capacitor on the output. At loads below 20%, the max ripple and noise of the 3.3 & 5 Vdc outputs will be 100 mVp-p, and the other outputs will be 2% Vo. 3. Measured at min Vin, full load. 4. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified. PART NUMBER KEY VX78 XX - 1000 Base Number Output Voltage cui.com Output Current Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/21/2021 │ page 2 of 7 INPUT parameter conditions/description operating input voltage1 for positive output applications for negative output applications filter capacitor filter min typ max units 6 8 24 12 36 27 Vdc Vdc 0.1 1 mA typ max units 680 330 μF μF input reverse polartiy protection no no-load input current Note: positive outputs 1. See Model section on page 1 for specific input voltage ranges. OUTPUT parameter conditions/description maximum capacitive load2 for positive output applications for negative output applications voltage accuracy at full load, input voltage range 3.3 Vdc output model all other models ±2 ±2 ±4 ±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 % switching frequency at nominal input voltage, full load 3.3/5 Vdc output models all other models 520 680 620 780 kHz 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 at full load ±0.03 %/°C Note: min 420 580 2. The maximum capacitive load was tested at nominal input voltage, full load. PROTECTIONS parameter conditions/description short circuit protection continuous, auto recovery min typ max units min typ max units SAFETY AND COMPLIANCE parameter conditions/description safety approvals certified to 62368-1: EN certified to 60950-1: UL EMI/EMC EN 55032, EN 55024 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, class B radiated immunity IEC/EN61000-4-3, 10V/m, class A EFT/burst IEC/EN61000-4-4, ± 1kV, class B (external circuit required, see Figure 4-a) surge IEC/EN61000-4-5, line-line ± 1kV, class B (external circuit required, see Figure 4-a) conducted immunity IEC/EN61000-4-6, 3 Vr.m.s, class A MTBF as per MIL-HDBK-217F, 25°C RoHS 2011/65/EU 2,000,000 cui.com hours Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/21/2021 │ page 3 of 7 ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curve -40 85 °C -55 125 °C 5 95 % max units 260 °C max units storage temperature storage humidity non-condensing typ SOLDERABILITY parameter conditions/description wave soldering see wave soldering profile min typ Peak Temp. 260°C Max. Wave Soldering Time 4 Sec. Max. 250 Temperature (°C) 200 10 Sec. Max. 150 100 50 0 MECHANICAL Time (sec.) parameter conditions/description dimensions 11.50 x 9.00 x 17.50 [0.453 x 0.354 x 0.689 inch] min case material black flame-retardant heat-proof plastic (UL94V-0) weight typ mm 3.8 MECHANICAL DRAWING units: mm [inch] tolerance: ±0.25[±0.010] pin diameter tolerance: ±0.10[±0.004] PIN CONNECTIONS PIN +OUTPUT -OUTPUT 1 +VIN +VIN 2 GND -VOUT 3 +VOUT GND cui.com g Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR DERATING CURVE EFFICIENCY CURVES cui.com | PCB Footprint date 09/21/2021 │ page 4 of 7 Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES (CONTINUED) cui.com | PCB Footprint date 09/21/2021 │ page 5 of 7 Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/21/2021 │ page 6 of 7 TYPICAL APPLICATION CIRCUIT Figure 1 Figure 2 Positive Output Application Circuit Negative Output Application Circuit Figure 3 Positive and Negative Output Paralleling Application Circuit Table 1 External Capacitor Table Model Number C1, C3 C2, C4 (ceramic capacitor) (ceramic capacitor) VX7803-1000 10 μF/50 V 22 μF/10 V VX7805-1000 10 μF/50 V 22 μF/10 V VX78039-1000 10 μF/50 V 22 μF/16 V VX78012-1000 10 μF/50 V 22 μF/25 V VX7815-1000 10 μF/50 V 22 μF/25 V EMC RECOMMENDED CIRCUIT Figure 4 Table 2 Recommended external circuit components Note: FUSE choose according to actual input current MOV S20K30 LDM1 82 µH C0 680 µF/50 V C1, C2 see Table 1 C3 4.7 µF/50 V LDM2 12 µH 1. C1 & C2 (C3 & C4) are required and should be connected as close to the module pins as possible. 2. To reduce the output ripple further, C2 & C4 can be increased as needed and the use of tantalum or low ESR electrolytic capacitors would be recommended. 3. When using application circuit in Figure 3, a 10 µH LDM component is recommended to reduce the interference. cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VX78-1000 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/21/2021 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 05/18/2017 1.01 features and safety line updated, packaging removed 01/14/2021 1.02 derating curve, efficiency curves and circuit figures 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.