SOT23 DC-DC Converter Chips

Last Updated: January 31, 2025

Description

SOT23 DC-DC converter chips are compact power management devices designed to convert a source of direct current (DC) from one voltage level to another. These chips are typically housed in a small SOT23 package, which is known for its space-saving design, making them ideal for applications where board space is limited.

Working Principle

DC-DC converters operate by switching the input voltage on and off rapidly, using components such as metal-oxide-semiconductor field-effect transistors (MOSFETs) for efficient power conversion. This switching action allows the converter to step up or step down the voltage to the desired level. The use of synchronous rectification, where MOSFETs are used instead of diodes, enhances efficiency by reducing power losses during the conversion process. These converters are useful because they provide stable and regulated output voltages, which are crucial for the reliable operation of electronic devices.

Applications

SOT23 DC-DC converter chips are commonly used in portable electronic devices such as smartphones, tablets, and wearable technology, where space is at a premium. They are also employed in battery-powered applications, including remote sensors and IoT devices, where efficient power management is essential to prolong battery life.

Advantages over other DC-DC Converter Chips

One of the primary advantages of SOT23 DC-DC converter chips is their compact size, which allows for integration into small form factor devices. Additionally, their design often includes features such as thermal shutdown protection and reverse voltage protection, which enhance reliability and safety in various applications. The use of synchronous rectification in these converters also provides higher efficiency compared to traditional diode-based converters.

Limitations

Despite their advantages, SOT23 DC-DC converter chips may have limitations in terms of power handling capability due to their small size. They might not be suitable for high-power applications where larger packages with better heat dissipation are required. Additionally, the compact design can sometimes limit the number of features that can be integrated into the chip.

Considerations

When selecting SOT23 DC-DC converter chips, it is important to consider the initial cost, which can vary based on the specific features and performance requirements. Operating expenses are generally low due to their high efficiency, but durability can be a concern in high-temperature environments. Accuracy in voltage regulation is typically high, but it is essential to ensure that the chip's specifications match the application's requirements. Replacement and maintenance costs are minimal, given the reliability of these devices, but it is crucial to consider the availability of replacements in case of failure.

42 Results

PMIC - PMIC - AC DC Converters, Offline Switchers - RT7736LGE -- 1092879-RT7736LGE - Image

View Datasheet

PMIC - PMIC - AC DC Converters, Offline Switchers - RT7736LGE -- 1092879-RT7736LGE [RT7736LGE from RichTek Technology Corporation]
from Win Source Electronics

Manufacturer: Richtek USA Inc. Win Source Part Number: 1092879-RT7736LGE. Packaging: Reel - TR. Mounting: Surface Mount. Output Isolation: Isolated. Topology: Flyback. Voltage - Start Up: 14.5V. Duty Cycle: 75%. Frequency - Switching: 65kHz. Fault Protection: Current Limiting, Over Load, Over... [See More]

Package Type: SOT23; Other; SOT-23-6
Configuration / Function: Flyback

Operating Temperature: -40 to 85

DC-DC Converters ICs -- 1218830 [LM2664M6/NOPB from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

DC-DC converter,LM2664M6 -Vin 5 off [See More]

Package Type: SOT23; Other; Sot-23
Output Voltage: -5.5

Output Voltage Type: Adjustable / Variable
I_OUT: 0.0400

View Datasheet

LM3671MFX-1.875/NOPB [LM3671MFX-1.875/NOPB from Texas Instruments High-Performance Analog]
from Rochester Electronics

LM3671 2MHz, 600mA Step-Down DC-DC Converter [See More]

Package Type: SOT23; Other; SOT-23-5

Configuration / Function: Buck

DC to DC Converter -- AAT1141IGV-2.0-T1 - Image

DC to DC Converter -- AAT1141IGV-2.0-T1 [AAT1141IGV-2.0-T1 from Skyworks Solutions, Inc.]
from Richardson RFPD

Richardson RFPD, an Arrow Company, is a specialized electronic component distributor providing design engineers with deep technical expertise and localized global design support for the latest new products from the world's leading suppliers of RF, Wireless, Energy and Power Technologies. [See More]

Package Type: SOT23

I_OUT: 0.6000

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62203DBVTG4 -- 1272879-TPS62203DBVTG4 - Image

View Datasheet

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62203DBVTG4 -- 1272879-TPS62203DBVTG4 [TPS62203DBVTG4 from Texas Instruments]
from Win Source Electronics

Manufacturer: Texas Instruments. Win Source Part Number: 1272879-TPS62203DBVTG4. Packaging: Reel - TR. Operating Temperature Range: -40 °C ~ 85 °C (TA). Package: SC-74A, SOT-753. Mounting: SMD. Output Type: Fixed. Function: Step-Down. Topology: Buck. Frequency - Switching: 1MHz. Number of... [See More]

Package Type: SOT23; Other; SC-74A, SOT-753
Input Voltage: 2.5

Output Voltage: 3.3
I_OUT: 0.3000

DC-DC Converters ICs -- 2653532 [TPS613221ADBVT from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

Texas Instruments TPS613221ADBVT [See More]

Package Type:
Input Voltage: 5.5

Output Voltage Type: Fixed
I_OUT: 0.5000

View Datasheet

NCP3235MNTXG [NCP3235MNTXG from onsemi]
from Rochester Electronics

NCP3235 - 4.5 V to 23 V, DC/DC Converter with Integrated MOSFETs [See More]

Package Type: SOT23; Other; SOT-23-3

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62205DBVRG4 -- 1272882-TPS62205DBVRG4 - Image

View Datasheet

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62205DBVRG4 -- 1272882-TPS62205DBVRG4 [TPS62205DBVRG4 from Texas Instruments]
from Win Source Electronics

Manufacturer: Texas Instruments. Win Source Part Number: 1272882-TPS62205DBVRG4. Packaging: Reel - TR. Operating Temperature Range: -40 °C ~ 85 °C (TA). Package: SC-74A, SOT-753. Mounting: SMD. Output Type: Fixed. Function: Step-Down. Topology: Buck. Frequency - Switching: 1MHz. Number of... [See More]

Package Type: SOT23; Other; SC-74A, SOT-753
Input Voltage: 2.5

Output Voltage: 2.5
I_OUT: 0.3000

DC-DC Converters ICs -- 2653534 [TPS613221ADBVT from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

Texas Instruments TPS613221ADBVT [See More]

Package Type:
Input Voltage: 5.5

Output Voltage Type: Fixed
I_OUT: 0.5000

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62207DBVTG4 -- 1272884-TPS62207DBVTG4 - Image

View Datasheet

PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS62207DBVTG4 -- 1272884-TPS62207DBVTG4 [TPS62207DBVTG4 from Texas Instruments]
from Win Source Electronics

Manufacturer: Texas Instruments. Win Source Part Number: 1272884-TPS62207DBVTG4. Packaging: Reel - TR. Operating Temperature Range: -40 °C ~ 85 °C (TA). Package: SC-74A, SOT-753. Mounting: SMD. Output Type: Fixed. Function: Step-Down. Topology: Buck. Frequency - Switching: 1MHz. Number of... [See More]

Package Type: SOT23; Other; SC-74A, SOT-753
Input Voltage: 2.5

Output Voltage: 1.2
I_OUT: 0.3000

DC-DC Converters ICs -- 8855417P - Image

DC-DC Converters ICs -- 8855417P
from RS Components, Ltd.

2.7V to 16V Step Up DC-DC Conv SOT-23 [See More]

Package Type:
Output Voltage: 38

Output Voltage Type: Adjustable / Variable
Input Voltage: 16

DC-DC Converters ICs -- 9210506P - Image

DC-DC Converters ICs -- 9210506P
from RS Components, Ltd.

2.7V - 9V LED Step Up DC-DC Conv SOT-23 [See More]

Package Type:
Output Voltage: 38

Output Voltage Type: Adjustable / Variable
Input Voltage: 9

Power Supply Chip >> DC-DC Converters -- AOZ1282CI - Image

View Datasheet

Power Supply Chip >> DC-DC Converters -- AOZ1282CI [AOZ1282CI from Alpha & Omega Semiconductor, Ltd.]
from LCSC Electronics Technology (HK) Limited

Step-down type Adjustable 800mV~36V 1.2A 4.5V~36V SOT-23-6 DC-DC Converters ROHS [See More]

Package Type: SOT23
Output Voltage: 0.8000 to 36

Output Voltage Type: Adjustable / Variable
Input Voltage: 4.5 to 36

Conv DC-DC Single Step Down 4.5V 16V 8-Pin TSOT-23 T/R -- 541-MP1494DJ-LF-Z - Image

Conv DC-DC Single Step Down 4.5V 16V 8-Pin TSOT-23 T/R -- 541-MP1494DJ-LF-Z [MP1494DJ-LF-Z from Monolithic Power Systems, Inc.]
from Utmel Electronic Limited

Conv DC-DC Single Step Down 4.5V 16V 8-Pin TSOT-23 T/R [See More]

Package Type: SOT23; Other; SOT-23-8 Thin, TSOT-23-8
Input Voltage: 12

Output Voltage: 13
I_OUT: 2

PFM/PWM Step-Down DC/DC Converter -- en010707 - Image

View Datasheet

PFM/PWM Step-Down DC/DC Converter -- en010707
from Microchip Technology, Inc.

The TC105 is a step-down (Buck) switching controller that furnishes output currents of up to 1A (max) while delivering a typical efficiency of 92%. The TC105 normally operates in pulse width modulation mode (PWM), but automatically switches to pulse frequency modulation (PFM) at low output loads for... [See More]

Package Type: SOT23; Other; ['SOT-23']

Configuration / Function: Buck

Power Supply Chip >> DC-DC Converters -- AOZ1282CI-2 - Image

View Datasheet

Power Supply Chip >> DC-DC Converters -- AOZ1282CI-2 [AOZ1282CI-2 from Alpha & Omega Semiconductor, Ltd.]
from LCSC Electronics Technology (HK) Limited

Step-down type Adjustable 800mV~30.6V 600mA 4.5V~36V SOT-23-6 DC-DC Converters ROHS [See More]

Package Type: SOT23
Output Voltage: 0.8000 to 30.6

Output Voltage Type: Adjustable / Variable
Input Voltage: 4.5 to 36

Conv DC-DC Single Step Up 2.5V to 5.5V 5-Pin TSOT-23 T/R -- 536-MIC2251-1YD5-TR - Image

Conv DC-DC Single Step Up 2.5V to 5.5V 5-Pin TSOT-23 T/R -- 536-MIC2251-1YD5-TR [MIC2251-1YD5-TR from Microchip Technology, Inc.]
from Utmel Electronic Limited

Conv DC-DC Single Step Up 2.5V to 5.5V 5-Pin TSOT-23 T/R [See More]

Package Type: SOT23; Other; SOT-23-5 Thin, TSOT-23-5
Input Voltage: 2.5

Output Voltage: 37
I_OUT: 2

PFM/PWM Step-Up DC/DC Converter -- TC110 - Image

View Datasheet

PFM/PWM Step-Up DC/DC Converter -- TC110
from Microchip Technology, Inc.

The TC110 is a step-up (Boost) switching controller that furnishes output currents as high as 300 mA while delivering a typical efficiency of 84%. The TC110 normally operates in pulse width modulation mode (PWM), but automatically switches to pulse frequency modulation (PFM) at low output loads for... [See More]