V7815W-500

Additional Resources:    Product Page ~~OB~~ |    3D Model |    PCB Footprint **date 01/15/2024 page 1 of 5** Z| CUIINC **SERIES:** V78W-500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR **FEATURES** • up to 500 mA current output • extremly high efficiency up to 95% • no heatsink required • pin comparable to LM78 linear regulators • available in straight and right angle SIP packages • up to 8:1 ultra wide input • low ripple and noise • short circuit protections • wide temperature (-40°C ~ 85°C) RoHS **MODEL input output output output ripple and voltage voltage current power noise[1] level[2] range min max max max** (Vdc) (Vdc) (mA) (mA) (W) (mVp-p) (%) V7803W-500[5] 9 ~ 72 3.3 10 500 1.65 60 82 V7805W-500 9 ~ 72 5 10 500 2.5 60 87 V7806W-500[4,5] 9 ~ 72 6.5 10 500 3.25 60 91 V7809W-500[4,5] 14 ~ 72 9 10 500 4.5 60 92 V7812W-500[4] 17 ~ 72 12 10 500 6 60 93 V7815W-500 20 ~ 72 15 10 500 7.5 60 94 V7824W-500[3,4] 36 ~ 72 24 6 300 7.2 60 95 Notes: 1. 20MHz bandwidth, from 10% to 100% load 2. Measured at Vin min and 100% load 3. V7824W-500 output current is 300 mA (max) 4. Standard option discontinued. 5. Bent pin option discontinued. **PART NUMBER KEY V78 XX W - XXX X** a ~~f IN~~ Base Number Output Voltage Output Current blank = standard R = Right Angle **cui** .com 

||**cui**.com<br>**date**01/15/2024**�** **page**2 of 5<br>**CUI Inc� SERIES:**V78W-500**�** **DESCRIPTION:**DC-DC CONVERTER<br>**INPUT**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>operating input voltage<br>3, 5, 6.5 V models<br>9 V model<br>12 V model<br>15 V model<br>24 V model<br>9<br>14<br>17<br>20<br>36<br>48<br>48<br>48<br>48<br>48<br>72<br>72<br>72<br>72<br>72<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>**OUTPUT**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>line regulation<br>measured from low line to high line<br>±0.4<br>±1.0<br>%<br>load regulation<br>measured from 10% to full load<br>±0.3<br>±0.6<br>%<br>voltage accuracy<br>at 100% load<br>±2<br>±3<br>%<br>switching frequency<br>100% load<br>120<br>800<br>kHz<br>��������������������<br>-40°C ~ +85°C ambient<br>±0.015<br>%/°C<br>quiescent current<br>Vin = nominal, min. load<br>1<br>5<br>mA<br>tendencies load<br>at 10% to 100% load<br>1.0<br>±100<br>1.5<br>mV<br>ms<br>max capacitance load<br>100<br>µF<br>**PROTECTIONS**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>short circuit protection<br>continuous, automatic recovery<br>short circuit input power<br>Vin = nominal<br>0.72<br>1.2<br>W<br>thermal shutdown<br>160<br>°C<br>current limit<br>Vin = nominal<br>700<br>1200<br>mA<br>**SAFETY AND COMPLIANCE**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>thermal resistance<br>60<br>°C/W<br>EMI/EMC<br>EN55022, class B (refer to page 4), IEC/EN 61000-4-2 level 4<br>RoHS compliant<br>yes<br>MTBF<br>25°C (MIL-HDBK-217K)<br>71°C (MIL-HDBK-217K)<br>3,500,000<br>1,500,000<br>hours<br>hours<br>**ENVIRONMENTAL**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>case operating temperature<br>65<br>100<br>°C<br>operating temperature<br>power derating above 71°C<br>-40<br>85<br>°C<br>storage temperature<br>-55<br>125<br>°C<br>storage humidity<br>non-condensing<br>95<br>%<br>DISCONTINUED<br>Additional Resources:Product Page<br>|3D Model<br> |PCB Footprint|
|---|---|



**==> picture [590 x 752] intentionally omitted <==**

**----- Start of picture text -----**<br>
Additional Resources:    Product Page    |    3D Model    |    PCB Footprint<br>CUI Inc  �  SERIES:  V78W-500  � DESCRIPTION:  DC-DC CONVERTER date  01/15/2024  � page  3 of 5<br>MECHANICAL<br>parameter conditions/description min ��� max units<br>dimensions 11.5 x 9.0 x 17.5 mm (0.45 x 0.35 x 0.69 inch)<br>case material Plastic (UL94-V0)<br>weight 4 g<br>MECHANICAL DRAWING<br>Units: mm [in]<br>All pins on a 2.54mm pitch<br>pin tolerance: ±0.10mm[±0.004in]<br>general tolerance: ±0.25mm[±0.010in]<br>general tolerance (right angle): ±0.50mm[±0.020in]<br>V78W-500 V78W-500R<br>11.50 0.453 9.00 0.354 11.50 0.453 9.00 0.354<br>17.50 0.689 17.50 0.689<br>0.50 0.020 0.50 0.020<br>4.10 0.161<br>1.50 0.059 5.08 0.200 2.15 0.085<br>5.08 0.200<br>2.15 0.085 1 2 3 0.50 0.020 1 2 3<br>0.55 0.022 4.10 0.161<br>RECOMMENDED FOOTPRINT<br>V78W-500 V78W-500R<br>1.10 0.043 1.10 0.043<br>5.08 0.200 5.08 0.200<br>(3 PLCS) (3 PLCS)<br>3 2 1<br>1 2 3 2.54 0.100<br>2.15 0.085<br>1.35 0.053<br>2.54 0.100<br>2.54 0.100<br>PIN CONNECTIONS<br>1 +Vin<br>2 GND<br>3 +Vout<br>2.54 0.100<br>cui .com<br>DISCONTINUED<br>**----- End of picture text -----**<br>


Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**date** 01/15/2024 **page** 4 of 5 

**CUI Inc  SERIES:** V78W-500 **DESCRIPTION:** DC-DC CONVERTER 

## **TYPICAL APPLICATION CIRCUIT** 

1. The regulator proposed to establish the input voltage by soft-start, no plug and play, if the input voltage changes from low voltage to high voltage abruptly, the regulator might be damaged. 

## **APPLICATION EXAMPLE** 

**==> picture [282 x 170] intentionally omitted <==**

**----- Start of picture text -----**<br>
High voltage input, multiple outputs, with greater load<br>Reverse protection<br>u  pcpc = +12V/100MmA<br>2 DC-DC +5V/850mA<br>C1<br>c2<br>10UF "<br>1. The input current amount of the back-grade regulator and<br>the pre-class load should be less than or equal the max load<br>current of the pre-class regulator.<br>ED<br>**----- End of picture text -----**<br>


2. If the applications is high-voltage input, the regulator 

voltage spikes caused by damage to the module. 

as per the above circuit (We recommend not to add components), if request, please make sure the capacitors C1 

3. No parallel connection. 

**==> picture [400 x 328] intentionally omitted <==**

**----- Start of picture text -----**<br>
MODULES PROTECT RECOMMENDED CIRCUIT DERATING CURVE<br>100<br>vne see ov 120<br>2 -,-/<br>ad 80<br>,<br>2 60<br>Vout [=] 2 40<br>nF 1 3 “yout é2<br>Schottky Diode 0.3V 20<br>| : I! 0 -40 -20<br>EMC RECOMMENDED CIRCUIT<br>0.5mH-2mH ,<br>° Vin<br>DISCON ; +<br>**----- End of picture text -----**<br>


**cui** .com 

**==> picture [590 x 727] intentionally omitted <==**

**----- Start of picture text -----**<br>
Additional Resources:    Product Page    |    3D Model    |    PCB Footprint<br>CUI Inc  SERIES:  V78W-500   DESCRIPTION:  DC-DC CONVERTER date  01/15/2024   page  5 of 5<br>REVISION HISTORY<br>rev. description date<br>1.0 initial release 09/28/2011<br>1.01 09/06/2012<br>1.02 updated datasheet 04/21/2015<br>1.03 company logo updated 04/14/2021<br>1.04 09/21/2021<br>discontinued model V7803W-500R, V7806W-500, V7806W-500R,<br>1.05 01/15/2024<br>V7809W-500, V7809W-500R, V7812W-500 & V7824W-500<br>The revision history provided is for informational purposes only and is believed to be accurate.<br>Headquarters<br>20050 SW 112th Ave. Fax 503.612.2383<br>FY CUIINC Tualatin, OR 97062 cui .com<br>a bel group 800.275.4899 techsupport@cui.com<br>CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.<br>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<br>assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.<br>DISCONTINUED<br>**----- End of picture text -----**<br>


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