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SOIC-8-EP

L7981ATR

STMicroelectronics

-40℃~+150℃@(TJ) 1 1MHz 3A 4.5V~28V 600mV~28V Adjustable Buck Buck Built-in No SOIC-8-EP DC-DC Converters ROHS

Extended
Category
DC DC Converters
Package
SOIC-8-EP
Pins
8

Overview

The L7981ATR is a DC DC Converter made by STMicroelectronics in a SOIC-8-EP package with 9 pins. -40℃~+150℃@(TJ) 1 1MHz 3A 4.5V~28V 600mV~28V Adjustable Buck Buck Built-in No SOIC-8-EP DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L7980TR, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C155593).

Symbol

OUT1SYNCH2EN3COMP4FB5FSW6GND7VCC8EP9
EasyEDA_Cloud:L7980TRFrom EasyEDA

Footprint

The library has no footprint for this part yet.

Parameters

13
Features
Overcurrent Protection, Frequency synchronization, Hiccup current limiting, 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~28V
Quiescent Current
2.4mA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
No
Topology
Buck
Voltage - Supply
4.5V~28V

Order codes

1

Pinout

9
The pins of the L7981ATR
PinNameType
1OUTUnspecified
2SYNCHUnspecified
3ENUnspecified
4COMPUnspecified
5FBUnspecified
6FSWUnspecified
7GNDUnspecified
8VCCUnspecified
9EPUnspecified

Questions

Is there a KiCad symbol and footprint for the L7981ATR?

Yes. The symbol is EasyEDA_Cloud:L7980TR, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L7981ATR?

SOIC-8-EP, with 9 pins.

Where is the L7981ATR datasheet?

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

Where can I order the L7981ATR?

JLCPCB lists it as part C155593, with 0 in stock; the sellers' links on this page open their listings.