V7806-1500

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## **SERIES:** V78-1500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

## **FEATURES** 

- 1.5 A current output 

- extremely high efficiency up to 95% 

- no heat sink required 

- pin compatible to LM78XX linear regulators 

- available in straight and right angle SIP packages 

- low ripple and noise 

- short circuit protection, thermal shutdown 

- wide temperature (-40~85°C) 

|**MODEL**<br>**input**<br>**voltage**<br>**output**<br>**voltage**<br>**output**<br>**current**<br>**ripple**<br>**and noise1**<br>(Vdc)<br>**range**<br>(Vdc)<br>(Vdc)<br>**max**<br>(mA)<br>**max**<br>(mVp-p)<br>**Vin min**<br>(%)<br>**Vin max**<br>(%)<br>V7803-1500<br>12<br>4.75~18<br>3.3<br>1,500<br>45<br>91<br>88<br>V7805-1500<br>12<br>6.5~18<br>5<br>1,500<br>45<br>93<br>91<br>V7806-1500<br>12<br>8~18<br>6.5<br>1,500<br>45<br>95<br>93<br>DISCONTINUED|
|---|



Notes: 1. ripple and noise are measured at 20 MHz BW. 

## **PART NUMBER KEY** 

**V78 XX - 1500 X** Base Number Output Voltage Output Current "blank" = straight pins R = 90° pins a ~~7 ™~~ 

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**CUI Inc � SERIES:** V78-1500 **� DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 09/22/2021 **� page** 2 of 6 

## **INPUT** 

|**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>operating input voltage<br>3.3 V output<br>5 V output<br>6.5 V output<br>4.75<br>6.5<br>8<br>12<br>12<br>12<br>18<br>18<br>18<br>Vdc<br>Vdc<br>Vdc<br>**OUTPUT**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>line regulation<br>Vin = min ~ max, at full load<br>±0.5<br>±0.75<br>%<br>load regulation<br>measured from 10% load to full load<br>±0.5<br>±1.0<br>%<br>voltage accuracy<br>100% load<br>±2<br>±3<br>%<br>switching frequency<br>100% load, input voltage range<br>300<br>340<br>380<br>kHz<br>��������������������<br>±0.02<br>%/°C<br>**PROTECTIONS**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>short circuit protection<br>continuous, automatic recovery<br>thermal shutdown<br>150<br>°C<br>**SAFETY AND COMPLIANCE**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>EMI/EMC<br>EN 55022 class B, EN 61000-4-2 class A<br>MTBF<br>2,000,000<br>hours<br>RoHS<br>2011/65/EU<br>**ENVIRONMENTAL**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>operating temperature<br>-40<br>85<br>°C<br>storage temperature<br>-55<br>125<br>°C<br>case temperature<br>100<br>°C<br>storage humidity<br>non-condensing<br>95<br>%<br>temperature rise<br>at full load<br>25<br>°C<br>lead temperature<br>1.5 mm from case for 10 seconds<br>300<br>°C<br>CONTINUED|
|---|



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**CUI Inc  SERIES:** V78-1500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

## **DERATING CURVES** 

**MECHANICAL parameter conditions/description min max units** dimensions 0.689 x 0.354 x 0.453 (11.50 x 9.00 x 17.50 mm) inch case material plastic (UL94-V0) weight 4.0 g **MECHANICAL DRAWING** units: mm [inches] tolerance: ±0.25 [±0.010] pin section tolerance: ±0.10 mm [±0.004] **V78XX-1500 V78XX-1500R** 11.50[0.453] 9.00 [0.354] 11.50[0.453] 9.00 [0.354] 17.50 [0.689] 17.50 [0.689] 4.10[0.161] 4.10 [0.161] 1.50 TM | [0.059] Lis ~~r~~ 5.08[0.200] t ot 2.15 5.08 [0.200] [0.085] (Bottom View) 5.08 [0.200] rT 1/8 1.00 [0.039] | (Bottom View) 1.35 [0.053] 1 2 3 [0.085]2.15 1 2 3 0.30 [0.012] HEH 1 2 3 Lye 1 EE Ty 2 0.50 [0.020] ~~bod~~ a 2.54 [0.100] || Ferlof ~~Pee~~ P ~~FE~~ 3 +E| | ~~rat~~ EE Ty ~~tT~~ @ 1.00 [0.039] **PIN CONNECTIONS** PIN FUNCTION 1 +Vin 2 GND 3 +Vo 

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**CUI Inc  SERIES:** V78-1500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

## **EXTERNAL CAPACITOR TABLE** 

Part Number C1 (Ceramic capacitor) C2 (Ceramic capacitor) V7803-1500 V7805-1500 V7806-1500 **TYPICAL APPLICATION CIRCUIT APPLICATION EXAMPLE Positive Output** 1 +VinDC-DC +Vo 3 1 DC-DC 3 2 : PietVin +Vo 4 : vin a DC-DC Vo +Vin -Vo **Negative Output** 2 ae vina oP@ DC-DC 8Vo +Vin -Vo + Vo Note: 1. C1 and C2 are required and should be fitted close to the converter pins. 2. The capacitance of C1and C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. No parallel connection or plug and play. **INPUT FILTER CIRCUIT** 10yH-47 pH DC-DC —aa Vin Vo : | | Pp **OUTPUT FILTER CIRCUIT** DC-DC 10uH-47pH : » aeVin Vo ~ **cui** .com 

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**CUI Inc  SERIES:** V78-1500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

## **EMC RECOMMENDED CIRCUIT** 

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**----- Start of picture text -----**<br>
. + GND n<br>Vin Vo<br>e<br>1mH<br>TEST CONFIGURATION<br>25.4 mm——>|+——_-25.4 mm ——> |<br>DC-DC 12.7 mm->}|<br>+ GND 7<br>vin + C2 CeramicuF |Tantalum)10yF Scope 5| Load<br>SS<br>se 50.8 mm ——————> [|]<br>DC-DC<br>!<br>Vin ‘ GND 9 Scope 5 Load<br>PSS<br>Copper Sheet<br>EFFICIENCY AND RIPPLE CURVES<br>EFFICIENCY VS INPUT VOLTAGE RIPPLE VS OUTPUT LOAD<br>(full load) (nominal Vin)<br>eeepe100"(LL EEEEEIT—— — egv7e06-500e z=, HH379 1 | | | | [| | -TF<br>Feee<br>§ Pt |} ff ff tt dd 7803-1500 Z ——r |] | |<br>LEE<br>2475 5 6 65 ET72 8 TT9 10 TTT12 15 18 20 HELtt150 300 450 600tt750Et900| 1050[| 1200[ it1350 1500<br>Input voltage (V) Output load (mA)<br>EFFICIENCY VS INPUT VOLTAGE RIPPLE VS OUTPUT LOAD<br>(full load) (nominal Vin)<br>45oisttt __t ||] |tt| || tf| ft| ft[ ffft key “L909 S 55<br>Eo.SCHOOPf |Tf—EEE———————————" aee)vr06-1500  eC= 80<br>eeed Ae ZOe7ee<br>DISCO<br>**----- End of picture text -----**<br>


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**CUI Inc  SERIES:** V78-1500 **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

## **REVISION HISTORY** 

|**rev.**<br>|**description**<br>|**date**<br>ED|
|---|---|---|
|1.0<br>|initial release<br>|07/16/2010<br>ED|
|1.01<br>||09/04/2012<br>ED|
|1.02<br>|updated typical application circuits<br>|09/25/2012<br>ED|
|1.03<br>|discontinued model V7802-1500<br>|03/21/2014<br>ED|
|1.04<br>|updated datasheet<br>|06/06/2016<br>ED|
|1.05<br>|companylogo updated<br>|04/14/2021<br>ED|
|1.06<br>||09/22/2021<br>ED|



The revision history provided is for informational purposes only and is believed to be accurate. 

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