Skip to the content
PCBKitNew board
L7986A on a board, in 3D

L7986A

STMicroelectronics

-40℃~+150℃@(TJ) 1 1MHz 3A 4.5V~38V 600mV~38V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCst/L7986A
Category
DC DC Converters
Package
SOIC-8
Pins
8

Overview

The L7986A is a DC DC Converter made by STMicroelectronics in a SOIC-8 package with 9 pins. -40℃~+150℃@(TJ) 1 1MHz 3A 4.5V~38V 600mV~38V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L7980TR, from EasyEDA) and its footprint (EasyEDA_Cloud:HSOP-8_L5.0-W4.0-P1.27-LS6.2-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C262915).

Symbol

OUT1SYNCH2EN3COMP4FB5FSW6GND7VCC8EP9
EasyEDA_Cloud:L7980TRFrom EasyEDA

Footprint

1234567899999
EasyEDA_Cloud:HSOP-8_L5.0-W4.0-P1.27-LS6.2-BL-EPFrom EasyEDA

Parameters

13
Features
Overcurrent Protection, Cycle-by-cycle current limiting, Frequency synchronization, External compensation
Frequency - Switching
1MHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+150℃@(TJ)
Output Current
3A
Output Type
Adjustable
Output Voltage
600mV~38V
Quiescent Current
20uA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
No
Topology
Buck
Voltage - Supply
4.5V~38V

Order codes

1

Pinout

9
The pins of the L7986A
PinNameType
1OUTUnspecified
2SYNCHUnspecified
3ENUnspecified
4COMPUnspecified
5FBUnspecified
6FSWUnspecified
7GNDUnspecified
8VCCUnspecified
9EPUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/L7986A" title="L7986A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/st/L7986A.jpg" alt="L7986A" width="1200" height="900">
A picture that opens the part, for a README
[![L7986A](https://pcbkit.io/embed/parts/st/L7986A.jpg?size=s)](https://pcbkit.io/parts/st/L7986A)

Questions

Is there a KiCad symbol and footprint for the L7986A?

Yes. The symbol is EasyEDA_Cloud:L7980TR and the footprint EasyEDA_Cloud:HSOP-8_L5.0-W4.0-P1.27-LS6.2-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L7986A?

SOIC-8, with 9 pins. Its footprint is drawn on this page.

Where is the L7986A datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the L7986A?

JLCPCB lists it as part C262915, with 0 in stock; the sellers' links on this page open their listings.

What can replace the L7986A?

Parts like it in the library: the TPS54327DDAR by Texas Instruments, the TPS5432DDAR by Texas Instruments, the TPS54428DDAR by Texas Instruments and the PAM2320BECADJR by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8