Skip to the content
PCBKitNew board
L5989D, in 3D

L5989D

STMicroelectronics

-40℃~+150℃@(TJ) 1 1MHz 2.9V~18V 4A 600mV~18V Adjustable Buck Buck Built-in Yes HTSSOP-16-EP DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCst/L5989D
Category
DC DC Converters
Package
HTSSOP-16-EP
Pins
17

Overview

The L5989D is a DC DC Converter made by STMicroelectronics in a HTSSOP-16-EP package with 17 pins. -40℃~+150℃@(TJ) 1 1MHz 2.9V~18V 4A 600mV~18V Adjustable Buck Buck Built-in Yes HTSSOP-16-EP DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L5989DTR, from EasyEDA) and its footprint (EasyEDA_Cloud:HTSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL-EP3.0, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1356120).

Symbol

OUT1VIN2VIN3VCC4SS/INH#5COMP6ILIM-ADJ7FB8PGOOD9FSW10U/O/S11VREF12SGND13PGND14PGND15OUT16EP17
EasyEDA_Cloud:L5989DTRFrom EasyEDA

Footprint

1234567891011121314151617
EasyEDA_Cloud:HTSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL-EP3.0From EasyEDA

Parameters

13
Features
Overcurrent Protection, Protection latch, Adjustable soft-start, Operating status indication, Adjustable current limiting, Hiccup current limiting, External compensation
Frequency - Switching
1MHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+150℃@(TJ)
Output Current
4A
Output Type
Adjustable
Output Voltage
600mV~18V
Quiescent Current
3mA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
Yes
Topology
Buck
Voltage - Supply
2.9V~18V

Order codes

2

Pinout

17
The pins of the L5989D
PinNameType
1OUTUnspecified
2VINUnspecified
3VINUnspecified
4VCCUnspecified
5SS/INH#Unspecified
6COMPUnspecified
7ILIM-ADJUnspecified
8FBUnspecified
9PGOODUnspecified
10FSWUnspecified
11U/O/SUnspecified
12VREFUnspecified
13SGNDUnspecified
14PGNDUnspecified
15PGNDUnspecified
16OUTUnspecified
17EPUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/L5989D" title="L5989D 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/L5989D.jpg" alt="L5989D" width="1200" height="900">
A picture that opens the part, for a README
[![L5989D](https://pcbkit.io/embed/parts/st/L5989D.jpg?size=s)](https://pcbkit.io/parts/st/L5989D)

Questions

Is there a KiCad symbol and footprint for the L5989D?

Yes. The symbol is EasyEDA_Cloud:L5989DTR and the footprint EasyEDA_Cloud:HTSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL-EP3.0, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L5989D?

HTSSOP-16-EP, with 17 pins. Its footprint is drawn on this page.

Where is the L5989D datasheet?

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

Where can I order the L5989D?

JLCPCB lists it as part C1356120, with 0 in stock; the sellers' links on this page open their listings.

What can replace the L5989D?

Parts like it in the library: the LM20134MHE by Texas Instruments, the LM5088MH-1 by Texas Instruments, the MAX15004CAUE/V+ by Maxim Integrated (Analog Devices) and the MAX15005AAUE/V+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8