V7805-1500R

**date 09/22/2021 page 1 of 6** 

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



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 ™~~ 

**cui** .com 

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

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

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



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

**date** 09/22/2021 **│ page** 3 of 6 

## **DERATING CURVES** 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**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] 

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**----- Start of picture text -----**<br>
V78XX-1500<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
V78XX-1500 V78XX-1500R<br>11.50[0.453] 9.00 [0.354]<br>11.50[0.453] 9.00 [0.354]<br>17.50 [0.689]<br>17.50 [0.689]<br>4.10[0.161]<br>4.10 [0.161]<br>1.50<br>TM | e  [0.059] e 5.08[0.200] ot 2.15<br>5.08 [0.200]  [0.085]<br>(Bottom View) 5.08 [0.200] T7178 1.00 [0.039] ! (Bottom View) 1.35 [0.053]<br>1 2 3<br> [0.085]2.15 1 2 3 0.30 [0.012] HEH | 1 2 3 Lye 1 EE Ty<br>2<br>0.50 [0.020] bod a 2.54 [0.100] ||: Ferlof Pee P FE 3 +E| | rat EE Ty tT<br>@ 1.00 [0.039]<br>PIN CONNECTIONS<br>PIN FUNCTION<br>1 +Vin<br>2 GND<br>3 +Vo<br>0.50 [0.020]<br>0.50 [0.020]<br>5.08 [0.200]<br>2.15 [0.085] 2.54 [0.100]<br>**----- End of picture text -----**<br>


**cui** .com 

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

**date** 09/22/2021 **│ page** 4 of 6 

## **EXTERNAL CAPACITOR TABLE** 

|**EXTERNAL CAPACITOR TABLE**|||
|---|---|---|
|Part Number|C1(Ceramic capacitor)|C2(Ceramic capacitor)|
|V7803-1500|10μF/25V|22μF/6.3V|
|V7805-1500|10μF/25V|22μF/16V|
|V7806-1500|10μF/25V|22μF/16V|



## **TYPICAL APPLICATION CIRCUIT** 

## **APPLICATION EXAMPLE** 

## **Positive Output** 

## **Negative Output** 

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** 

## **OUTPUT FILTER CIRCUIT** 

**cui** .com 

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

**date** 09/22/2021 **│ page** 5 of 6 

## **EMC RECOMMENDED CIRCUIT** 

## **TEST CONFIGURATION** 

## **Efficiency and Output Voltage Ripple Test** 

## **Start-up and Load Transient Response Test** 

## **EFFICIENCY AND RIPPLE CURVES** 

**cui** .com 

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

**date** 09/22/2021 **│ page** 6 of 6 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|07/16/2010|
|1.01|V-Infnitybrandingremoved|09/04/2012|
|1.02|updated typical application circuits|09/25/2012|
|1.03|discontinued model V7802-1500|03/21/2014|
|1.04|updated datasheet|06/06/2016|
|1.05|companylogo updated|04/14/2021|
|1.06|deratingcurve, efciencycurves and circuit fgures updated|09/22/2021|



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

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