Skip to the content
PCBKitNew board
BL9342 on a board, in 3D

BL9342

BL

-40℃~+125℃@(TJ) 1 1.8MHz 200uA 4.2V~40V 600mA Adjustable Buck Buck Built-in No SOT-23-6 DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCbl/BL9342
Category
DC DC Converters
Package
SOT-23-6
Pins
6

Overview

The BL9342 is a DC DC Converter made by BL in a SOT-23-6 package with 6 pins. -40℃~+125℃@(TJ) 1 1.8MHz 200uA 4.2V~40V 600mA Adjustable Buck Buck Built-in No SOT-23-6 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (OLIMEX_Regulators:BL9342, from Olimex) and its footprint (Package_TO_SOT_SMD:SOT-23-6, from KiCad's library), ready for a KiCad board. 10,234 are in stock at JLCPCB (part C93176). 7 open-source boards in 3 repositories on GitHub use it.

Symbol

BST1GND2FB3EN4VIN5SW6
OLIMEX_Regulators:BL9342From Olimex

Footprint

123456
Package_TO_SOT_SMD:SOT-23-6From KiCad's library

Parameters

12
Features
Built-in LDO regulator
Frequency - Switching
1.8MHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+125℃@(TJ)
Output Current
600mA
Output Type
Adjustable
Quiescent Current
200uA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
No
Topology
Buck
Voltage - Supply
4.2V~40V

Order codes

1

Pinout

6
The pins of the BL9342
PinNameType
1BSTInput/output
2GNDInput/output
3FBInput/output
4ENInput/output
5VINInput/output
6SWInput/output

Open-source boards using it

All 7
  • 4 layers65 × 67 mmDRV8874-Devboard, the printed circuit board in 3D

    DRV8874-Devboard

    awesomeyooner/PSD-17DB

    This is a breakout board mainly for the DRV8874, but includes other ICs that help with integrating FOC. About the name, it is short for "Polar Stepper Drive 17 - Dev Board".

    68 parts
  • 4 layers119.4 × 110.4 mmSpace, the printed circuit board in 3D

    Space

    ThisIsNotRocketScience/Eurorack-Modules

    This is not Rocket Science presents: Eurorack modular synthesizer modules!

    249 parts87MIT
  • 2 layers60.3 × 106.5 mmTINRS - Wobbler (pico)sch, the printed circuit board in 3D

    TINRS - Wobbler (pico)sch

    ThisIsNotRocketScience/Eurorack-Modules

    This is not Rocket Science presents: Eurorack modular synthesizer modules!

    181 parts87MIT
  • 2 layers60.3 × 106.5 mmTiNRS - Wobbler SMDLeds, the printed circuit board in 3D

    TiNRS - Wobbler SMDLeds

    ThisIsNotRocketScience/Eurorack-Modules

    This is not Rocket Science presents: Eurorack modular synthesizer modules!

    203 parts87MIT
  • 2 layers60.3 × 106.5 mmTiNRS Wobbler2, the printed circuit board in 3D

    TiNRS Wobbler2

    ThisIsNotRocketScience/Eurorack-Modules

    This is not Rocket Science presents: Eurorack modular synthesizer modules!

    181 parts87MIT
  • 2 layers40 × 100 mmWhiteRabbit, the printed circuit board in 3D

    WhiteRabbit

    ThisIsNotRocketScience/Eurorack-Modules

    This is not Rocket Science presents: Eurorack modular synthesizer modules!

    146 parts87MIT

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/bl/BL9342" title="BL9342 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/bl/BL9342.jpg" alt="BL9342" width="1200" height="900">
A picture that opens the part, for a README
[![BL9342](https://pcbkit.io/embed/parts/bl/BL9342.jpg?size=s)](https://pcbkit.io/parts/bl/BL9342)

Questions

Is there a KiCad symbol and footprint for the BL9342?

Yes. The symbol is OLIMEX_Regulators:BL9342 and the footprint Package_TO_SOT_SMD:SOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BL9342?

SOT-23-6, with 6 pins. Its footprint is drawn on this page.

Where is the BL9342 datasheet?

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

Where can I order the BL9342?

JLCPCB lists it as part C93176, with 10,234 in stock; the sellers' links on this page open their listings.

What can replace the BL9342?

Parts like it in the library: the TPS562201DDC by Texas Instruments, the TPS561201DDCR by Texas Instruments, the SX1308 by SX and the ETA8120S2G by etasolution. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BL9342?

7 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8