PM8903
STMicroelectronicsExtended
-25℃~+125℃ 1 1.1MHz 2.8V~6V 3A 600mV~5.5V 7uA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Frequency synchronization、External compensation Step-down type Yes VFQFPN-16(3x3) DC-DC Converters ROHS
- Part id
- st/PM8903
- Category
- DC DC Converters
- Package
- VFQFPN-16(3x3)
- Pins
- 5
- In stock
- 0 at JLCPCB (C20456189)
Overview
The PM8903 is a DC DC Converter made by STMicroelectronics in a VFQFPN-16(3x3) package with 17 pins. -25℃~+125℃ 1 1.1MHz 2.8V~6V 3A 600mV~5.5V 7uA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Frequency synchronization、External compensation Step-down type Yes VFQFPN-16(3x3) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PM8903TR, from EasyEDA) and its footprint (EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C20456189).
Symbol
Footprint
Pinout
17| Pin | Name | Type |
|---|---|---|
| 1 | EN | Unspecified |
| 2 | SYNCH | Unspecified |
| 3 | PGOOD | Unspecified |
| 4 | BOOT | Unspecified |
| 5 | PHASE | Unspecified |
| 6 | PHASE | Unspecified |
| 7 | PHASE | Unspecified |
| 8 | PSKIP/MS | Unspecified |
| 9 | COMP | Unspecified |
| 10 | FB | Unspecified |
| 11 | GND | Unspecified |
| 12 | VCC | Unspecified |
| 13 | VIN | Unspecified |
| 14 | VIN | Unspecified |
| 15 | PGND | Unspecified |
| 16 | PGND | Unspecified |
| 17 | EP | Unspecified |
Parts like it
5
TPS54618RTER
WQFN-16-EP(3x3)-40℃~+150℃@(TJ) 1 2.95V~6V 2MHz 515uA 6A 799mV~4.5V Adjustable Buck Buck Built-in Yes WQFN-16-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersRT8251GQW
WQFN-16-EP(3x3)-40℃~+85℃@(TA) 1 4.75V~24V 570kHz 5A 800mV~15V Adjustable Buck Buck Built-in Yes WQFN-16-EP(3x3) DC-DC Converters ROHSRichtek TechDC-DC ConvertersRT6259BLGQW
WQFN-16(3x3)-40℃~+125℃ 1 1mA 3A 4.5V~18V 650kHz 765mV~7V Adjustable Buck Built-in Overcurrent Protection、Output discharge、Protection latch、Adjustable soft-start、Operating status indication、Cycle-by-cycle current limiting Step-down type Yes WQFN-16(3x3) DC-DC Converters ROHSRichtek TechDC-DC ConvertersTPS54618RTET
WQFN-16(3x3)-40℃~+150℃@(TJ) 1 2.95V~6V 2MHz 515uA 6A 799mV~4.5V Adjustable Buck Buck Built-in Yes WQFN-16(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersRT8204LZQW
WQFN-16-EP(3x3)-40℃~+125℃ 1 4.5V~26V 750mV~3.3V Adjustable Buck Buck External Yes WQFN-16-EP(3x3) DC-DC Converters ROHSRichtek TechDC-DC Converters
Questions
Is there a KiCad symbol and footprint for the PM8903?
Yes. The symbol is EasyEDA_Cloud:PM8903TR and the footprint EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PM8903?
VFQFPN-16(3x3), with 17 pins. Its footprint is drawn on this page.
Where is the PM8903 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the PM8903?
JLCPCB lists it as part C20456189, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PM8903?
Parts like it in the library: the TPS54618RTER by Texas Instruments, the RT8251GQW by Richtek Tech, the RT6259BLGQW by Richtek Tech and the TPS54618RTET by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.