Overview
The XR77103ELBTR is a DC DC Converter made by MaxLinear in a QFN-32-EP(4x4) package with 33 pins. -40℃~+125℃@(TJ) 2.2MHz 2A 3 4.5V~14V 800mV~6V Adjustable Buck Buck Built-in Yes QFN-32-EP(4x4) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:XR77103ELBTR, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-32_L4.0-W4.0-P0.40-BL-EP2.8, from EasyEDA), ready for a KiCad board. 10 are in stock at JLCPCB (part C2070915).
Symbol
Footprint
Parameters
12- Features
- Frequency synchronization
- Frequency - Switching
- 2.2MHz
- Function
- Step-down type
- Number of Outputs
- 3
- Operating Temperature
- -40℃~+125℃@(TJ)
- Output Current
- 2A
- Output Type
- Adjustable
- Output Voltage
- 800mV~6V
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- Yes
- Topology
- Buck
- Voltage - Supply
- 4.5V~14V
Order codes
1- XR77103ELBTRLCSC C2070915
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | VOUT3 | Unspecified |
| 2 | COMP3 | Unspecified |
| 3 | A0 | Unspecified |
| 4 | VIN | Unspecified |
| 5 | GND | Unspecified |
| 6 | VCC | Unspecified |
| 7 | COMP1 | Unspecified |
| 8 | VOUT1 | Unspecified |
| 9 | BST1 | Unspecified |
| 10 | VIN1 | Unspecified |
| 11 | LX1 | Unspecified |
| 12 | LX1 | Unspecified |
| 13 | LX2 | Unspecified |
| 14 | LX2 | Unspecified |
| 15 | VIN2 | Unspecified |
| 16 | BST2 | Unspecified |
| 17 | VOUT2 | Unspecified |
| 18 | COMP2 | Unspecified |
| 19 | DGND | Unspecified |
| 20 | nWR | Unspecified |
| 21 | SDA | Unspecified |
| 22 | SCL | Unspecified |
| 23 | VL | Unspecified |
| 24 | PGOOD | Unspecified |
| 25 | SYNC | Unspecified |
| 26 | EN | Unspecified |
| 27 | AGND | Unspecified |
| 28 | VIN | Unspecified |
| 29 | LX3 | Unspecified |
| 30 | LX3 | Unspecified |
| 31 | VIN3 | Unspecified |
| 32 | BST3 | Unspecified |
| 33 | EP | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/maxlinear/XR77103ELBTR" title="XR77103ELBTR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/maxlinear/XR77103ELBTR.jpg" alt="XR77103ELBTR" width="1200" height="900">[](https://pcbkit.io/parts/maxlinear/XR77103ELBTR)Questions
Is there a KiCad symbol and footprint for the XR77103ELBTR?
Yes. The symbol is EasyEDA_Cloud:XR77103ELBTR and the footprint EasyEDA_Cloud:QFN-32_L4.0-W4.0-P0.40-BL-EP2.8, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the XR77103ELBTR?
QFN-32-EP(4x4), with 33 pins. Its footprint is drawn on this page.
Where is the XR77103ELBTR datasheet?
MaxLinear publishes it: the Datasheet link on this page opens it.
Where can I order the XR77103ELBTR?
JLCPCB lists it as part C2070915, with 10 in stock; the sellers' links on this page open their listings.