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.

68 Results

View Datasheet

CAT3200TDI-GT3 [CAT3200TDI-GT3 from onsemi]
from Rochester Electronics

CAT3200 - Low Noise Regulated Charge Pump DC-DC Converter [See More]

Package Type: SOT23; Other; TSOT-23, 6 Lead

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

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

DC-DC converter,LM2664M6 -Vin 5 off - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Operating Temperature: -40 to 85

Input Voltage: 1.8 to 5.5
Configuration / Function: Buck-Boost; Inverting

DC to DC Converter -- AAT1141IGV-2T1 - Image

DC to DC Converter -- AAT1141IGV-2T1 [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

View Datasheet

CPH3121-TL-E [CPH3121-TL-E from Panasonic]
from Rochester Electronics

CPH3121 - PNP Epitaxial Planar Silicon Transistor For DC/DC Converter Applications [See More]

Package Type: SOT23; Other; SC-59, TO-236, SOT-23

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

1223300
from RS Components, Ltd.

DC-DC Boost Switch. Controller SOT-23-6 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
I_OUT: 0.3000

Input Voltage: 1.65 to 8
Operating Temperature: 85

View Datasheet

LM2703MF-ADJ [LM2703MF-ADJ from Texas Instruments High-Performance Analog]
from Rochester Electronics

LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit [See More]

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

Configuration / Function: Boost

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

1223366
from RS Components, Ltd.

uPower Step-Up DC-DC Converter SOT23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 1 to 12

Output Voltage: 34
I_OUT: 0.1000

View Datasheet

LT1931IS5#TRPBF [LT1931IS5#TRPBF from Infineon Technologies AG]
from Rochester Electronics

LT1931 - 1.2MHz/2.2MHz Inverting DC/DC Converters in ThinSOT [See More]

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

Configuration / Function: Buck-Boost

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

1223367
from RS Components, Ltd.

From DiodesZetez, a range of step-down voltage switching regulators to suit a variety of requirements. Minimum Output Voltage = 0.6 V. Maximum Output Voltage = 5.5 V. Minimum Input Voltage = 2.5 V. Maximum Input Voltage = 5.5 V. Maximum Output Current = 1A. Converter Type = Step Down. Number of... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.5 to 5.5

Output Voltage: 0.6000 to 5.5
I_OUT: 1

View Datasheet

LTC3542IS6#TRPBF [LTC3542IS6#TRPBF from Infineon Technologies AG]
from Rochester Electronics

LTC3542 - 500mA, 2.25MHz Synchronous Step-Down DC/DC Converter [See More]

Package Type: SOT23; Other; SOT-23-6

Configuration / Function: Buck

1223368
from RS Components, Ltd.

From DiodesZetez, a range of step-down voltage switching regulators to suit a variety of requirements. Minimum Output Voltage = 0.81 V. Maximum Output Voltage = 15 V. Minimum Input Voltage = 4.5 V. Maximum Input Voltage = 18 V. Maximum Output Current = 1.5A. Converter Type = Step Down. Number of... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 4.5 to 18

Output Voltage: 0.8100 to 15
I_OUT: 1.5

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

1223369
from RS Components, Ltd.

From DiodesZetez, a range of step-down voltage switching regulators to suit a variety of requirements. Minimum Output Voltage = 0.6 V. Maximum Output Voltage = 4.95 V. Minimum Input Voltage = 2.5 V. Maximum Input Voltage = 5.5 V. Maximum Output Current = 1A. Converter Type = Step Down. Number of... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.5 to 5.5

Output Voltage: 0.6000 to 4.95
I_OUT: 1

View Datasheet

R1211N002B-TR-FE [R1211N002B-TR-FE from Nisshinbo Micro Devices Inc.]
from Rochester Electronics

R1211N002B-TR-FE - PWM Step-up DC/DC Controller [See More]

Package Type: SOT23; Other; SOT-23-6W

Configuration / Function: Boost

1223392
from RS Components, Ltd.

2.7V to 16V Step Up DC-DC Conv SOT-23 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.7 to 16

Output Voltage: 38
I_OUT: 0.2600

1461012 [MAX828EUK+ from Maxim Integrated]
from RS Components, Ltd.

A charge pump IC converts voltages using switching voltage technology and capacitive-energy storage elements. Charge pumps offer high-efficiency and compact solutions for applications with low-output current requirements. Minimum Input Voltage = 1.5 V. Maximum Input Voltage = 5.5 V. Number of... [See More]

Package Type: SOT23; Other; SOT-23
Operating Temperature: -40 to 85

Input Voltage: 1.5 to 5.5

1533323 [LT1930ES5#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

DC/DC Step Up Converter LT1930ES5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.6 to 16

Output Voltage: 34
I_OUT: 1

332887 [MAX1682EUK+ from Maxim Integrated]
from RS Components, Ltd.

A charge pump IC converts voltages using switching voltage technology and capacitive-energy storage elements. Charge pumps offer high-efficiency and compact solutions for applications with low-output current requirements. Minimum Input Voltage = 2 V. Maximum Input Voltage = 5.5 V. Maximum Output... [See More]

Package Type: SOT23; Other; SOT-23
I_OUT: 0.0450

Input Voltage: 2 to 5.5
Operating Temperature: -40 to 85

7328787 [MAX1724EZK50+T from Maxim Integrated]
from RS Components, Ltd.

High-Efficiency, Step-Up DC-DC Converter - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 0.8000 to 5.5

Output Voltage: 2 to 5.5
I_OUT: 0.1500

7615104 [LM3671MF-1.8/NOPB from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

DC-DC Converter Step-Down 2.7V SOT23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.7 to 5.5

Output Voltage: 1.1 to 3.3
I_OUT: 0.6000

7615567 [LM27313XMF/NOPB from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

DC-DC Converter Step Up 2.7-14V SOT23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.7 to 14

Output Voltage: 4 to 28
I_OUT: 0.8000

7615876 [LM3671MF-3.3/NOPB from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

DC-DC Converter Step-Dn 2.7-5.5V SOT23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.7 to 5.5

Output Voltage: 1.1 to 3.3
I_OUT: 0.6000

7618324 [LT1613CS5#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

DC-DC Converter Step-Up 0.9-10V TSOT23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 1.5 to 10

Output Voltage: 34
I_OUT: 0.8000

7618330 [LT1615IS5#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

A range of SEPIC DC-DC Converters from Linear Technology which can be used in applications where the output voltage may be either higher or lower than the input voltage. The SEPIC (Single-Ended Primary-Inductor Converter) topology also allows these converters to produce a negative output from a... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 1.2 to 15

Output Voltage: 34
I_OUT: 0.3000

7618336 [LT1615ES5-1#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

Package Type: SOT23; Other; SOT-23
Input Voltage: 1 to 15

Output Voltage: 34
I_OUT: 0.3000

7618349 [LT1617ES5-1#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

Linear Technologys offer a selection of inverting switching regulators, these regulators are designed to invert input voltages to negative outputs. Offering input voltages up to 60V and switch currents up to 10A with adjustable or fixed outputs. They may also incorporate integrated schottky diodes,... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 1 to 15

Output Voltage: -34
I_OUT: 0.1000

7619409 [LTC3406ABES5#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

Linear Technology offers a selection of step down (buck) switching regulators with both synchronous and non-synchronous internal switches. They are capable of offering 2.25V up to 30V input voltages and a variety of switching frequencies. Distributed power systems, battery powered instruments and... [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.5 to 5.5

Output Voltage: 0.6000
I_OUT: 0.6000

7833585 [MAX5026EUT+T from Maxim Integrated]
from RS Components, Ltd.

DC-DC Converter Step-Up 500kHz SOT23-6 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 3 to 11

Output Voltage: 4 to 36
Configuration / Function: Boost; Step Up

8023143 [NCP1402SN33T1G from onsemi]
from RS Components, Ltd.

200mA 3.3V PFM Step-Up Regulator TSOP5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: -0.3000 to 6

Output Voltage: 3.22 to 3.38
I_OUT: 0.4000

8023155 [NCP1402SN50T1G from onsemi]
from RS Components, Ltd.

200mA 5V PFM Step-Up Regulator TSOP5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: -0.3000 to 6

Output Voltage: 4.88 to 5.12
I_OUT: 0.4000

8136659 [LM2734ZMK/NOPB from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

1A 3-20V DC-DC Buck Regulator TSOT23-6 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 3 to 20

Output Voltage: 0.8000 to 18
I_OUT: 1

8230170 [LT3464ETS8#TRMPBF from Analog Devices, Inc.]
from RS Components, Ltd.

Micropower Boost Converter, Disconnect - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.3 to 10

Output Voltage: 34
I_OUT: 0.0850 to 0.1400

8256964 [TPS62202DBVR from Texas Instruments Standard Linear and Logic]
from RS Components, Ltd.

High-Efficiency DC-DC Converter SOT-23-5 - Power Management ICs - DC-DC Converters [See More]

Package Type: SOT23; Other; SOT-23
Input Voltage: 2.5 to 6

Output Voltage: 0.7000 to 6
I_OUT: 0.3000

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

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

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

View Datasheet

Constant-Current DC/DC LED Driver in ThinSOT -- LT1932ES6#PBF
from Analog Devices, Inc.

Product Details. The LT1932 is a fixed frequency step-up DC/DC converter designed to operate as a constant-current source. Because it directly regulates output current, the LT1932 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to the current passing through... [See More]

Package Type: SOT23
Input Voltage: 1 to 10

Output Voltage: 36
Operating Temperature: -40 to 125

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

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]