P783F-Q24-S3-S

Non Isolated POL DC/DC Converter, ITE, 1 Output, 9.9 W, 3.3 V, 3 A, Fixed, Adjustable

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Manufacturer: CUI
Product type: DC / DC Non Isolated Board Mount Converters - Fixed Output
SVHC: No SVHC (19-Jan-2021)
Depth: 30.6mm
Width: 5.8mm
Height: 12.5mm
Product Range: P783F-S Series
No. of Outputs: 1 Output
Output Power Max: 9.9W
Output Current Max: 3A
Output Voltage Nom: 3.3V
Input Voltage DC Max: 36V
Input Voltage DC Min: 8V
DC / DC Converter Type: SIP
Power Supply Applications: ITE
DC / DC Converter Mounting: Through Hole
DC / DC Converter Output Type: Fixed, Adjustable

Delivery and price
Units per pack	40
Price	11.17 €
Current stock	10+
Lead time	30 days

Datasheet

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

**date 06/29/2020 page 1 of 7** 

## **SERIES:** P783F-S **DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR **│** 

## **FEATURES** 

- 3A of output current 

- open frame design 

- high efficiency up to 97% 

- EN62368 approved 

- no-load input current as low as 2mA 

- output short circuit protection 

- wide operating temp: -40°C to +85°C 

|**MODEL**|**input**<br>**voltage**|**input**<br>**voltage**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency**|
|---|---|---|---|---|---|---|---|
||**typ**|**range**||**max**|**max**|**max**|**typ**|
||(Vdc)|(Vdc)|(Vdc)|(mA)|(W)|(mVp-p)|(%)|
|P783F-Q24-S3-S|24|8~36|3.3|3000|9.9|70|90|
|P783F-Q24-S5-S|24|8~36|5|3000|15|70|93|
|P783F-Q24-S6-S|24|10~36|6.5|3000|19.5|70|94|
|P783F-Q24-S9-S|24|13~36|9|3000|27|70|95|
|P783F-Q24-S12-S|24|16~36|12|3000|36|100|97|
|P783F-Q24-S15-S|24|19~36|15|3000|45|100|97|



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

## **PART NUMBER KEY** 

## **P783 - QXX - SXX - S** 

Base Number Input Voltage 

Output Voltage Packaging Style SIP 

**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 2 of 7 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 V output|8|24|36|Vdc|
||5 V output|8|24|36|Vdc|
|operating input voltage|6.5 V output<br>9 V output|10<br>13|24<br>24|36<br>36|Vdc<br>Vdc|
||12 V output|16|24|36|Vdc|
||15 V output|19|24|36|Vdc|
|reverse polarity input|avoid / not protected|||||



## **OUTPUT** 

|**OUTPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 V output|||1,000|μF|
||5 V output|||680|μF|
|capacitive load|6.5 V output<br>9 V output|||330<br>330|μF<br>μF|
||12 V output|||330|μF|
||15 V output|||330|μF|
|line regulation|full load, input voltage range||±0.5|±1.0|%|
|load regulation|from 10% to 100% load||±0.5|±1.0|%|
|voltage accuracy|0~100% load, input voltage range||±2|±3|%|
|switching frequency|PWM mode|100|250|400|kHz|
|temperature coefcient|-40°C ~ 85°C|||±0.03|%/°C|
|trimmability|see trim table|||||
|CTRL|module on: CTRL open or high<br>module of: CTRL low to GND||4.5<br>0|14<br>0.8|Vdc<br>Vdc|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|short circuit protection|continuous, automatic recovery|||||
|**SAFETY AND COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|safety approvals|EN62368-1|||||
|conducted emissions|CISPR32/EN55032 Class B|||||
|ESD|IEC/EN 61000-4-2, contact ±6 kV, perf. criteria B|||||
|radiated immunity|IEC/EN 61000-4-3, 10V/m, perf. criteria A|||||
|EFT/burst|IEC/EN 61000-4-4, ±1 kV, perf. criteria B (see recommended circuit)|||||
|surge|IEC/EN 61000-4-5, Class B, line to line ±1 kV, perf. criteria B|||||
|EMI/EMC|IEC/EN 61000-4-6 Class A, 3 Vr.ms (see recommended circuit) perf. criteria A|||||
|MTBF|as per MIL-HDBK-217F @ 25°C|2,000|||K hours|
|RoHS|yes|||||



**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 3 of 7 

## **ENVIRONMENTAL** 

|**ENVIRONMENTAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature|see derating curve|-40||85|°C|
|storage temperature||-55||125|°C|
|storage humidity|non-condensing|5||95|%|
|**SOLDERABILITY**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|pin soldering|for 10 seconds|||260|°C|
|**MECHANICAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|dimensions|32.15 x 14.85 x 9.05||||mm|
|case material|flame retardant and heat-resistant plastic (UL94 V-0)|||||
|weight|||9.3||g|



## **MECHANICAL DRAWING** 

units: mm [inches] tolerance: ±0.50 [±0.020] pin section tolerance: ±0.10 mm [±0.004] 

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|Pin|Function|
|1|Ctrl|
|2, 3, 4|Vin|
|5, 6, 7, 8|GND|
|9, 10|+Vo|
|11|+Vo|
|12|Trim|



**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 4 of 7 

## **DERATING CURVES** 

## Temperature Derating Curve 

**==> picture [38 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 1<br>**----- End of picture text -----**<br>


## **TYPICAL APPLICATION CIRCUIT** 

## **Table 1** 

**==> picture [37 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 2<br>**----- End of picture text -----**<br>


|Part No.|C1<br>(ceramic capacitor)|C2<br>(ceramic capacitor)|
|---|---|---|
|P783-Q24-S3-S|100μF/50V|22μF/10V|
|P783-Q24-S5-S||22μF/10V|
|P783-Q24-S6-S||22μF/10V|
|P783-Q24-S9-S||22μF/16V|
|P783-Q24-S12-S||22μF/25V|
|P783-Q24-S15-S||22μF/25V|



Note: 

1. The required capacitors C1 and C2 must be connected as close as possible to the terminals of the module; 

2. Refer to Table 1 for C1 and C2 capacitor values. For certain applications, increased values and/or tantalum or low ESR electrolytic capacitors may also be used instead; 3. Converter cannot be used for hot swap and with output in parallel. 

**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 5 of 7 

## **EMC RECOMMENDED CIRCUIT** 

## **Figure 3** 

## **Table 2** 

||FUSE|C3|LDM1|C4|C2|
|---|---|---|---|---|---|
|Emissions|select fuse value according<br>to actual input current|100μF/50V|22μH|100μF/50V|refer to the C2 in<br>Figure X|
|Immunity||||680μF/50V||



**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 6 of 7 

## **TRIM FUNCTION FOR OUTPUT VOLTAGE ADJUSTMENT** 

## **Figure 4** 

**Table 3** 

|Vout nom.|3.3 Vdc|3.3 Vdc|5.0 Vdc|5.0 Vdc|6.5 Vdc|6.5 Vdc|9.0 Vdc|9.0 Vdc|12 Vdc|12 Vdc|15 Vdc|15 Vdc|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Vout adj.|R1|R2|R1|R2|R1|R2|R1|R2|R1|R2|R1|R2|
|3|500K||||||||||||
|3.3|||||||||||||
|4||95K|195K||||||||||
|4.5||52K|470K||||||||||
|5|||||||||||||
|5.5||||125K|330K||||||||
|6||||58K|750K||||||||
|6.5|||||||||||||
|7||||||140K|220K||||||
|8||||||40K|520K||||||
|9|||||||||||||
|10||||||||65K|530K||||
|11||||||||28K|1180K||||
|12|||||||||||||
|13||||||||||110K|590K||
|14||||||||||50K|1290K||
|15|||||||||||||
|16||||||||||||90K|
|17||||||||||||40K|



**cui** .com 

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**CUI Inc │ SERIES:** P783F-S **│ DESCRIPTION:** NON-ISOLATED SWITCHING REGULATOR 

**date** 06/29/2020 **│ page** 7 of 7 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|06/29/2020|



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

**==> picture [155 x 34] intentionally omitted <==**

**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.

Updated at April 23, 2026

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