Microchip Technology, Inc. Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers SG1843L

Description
Win Source Part Number: 1250177-SG1843L Category: Integrated Circuits (ICs)>PMIC - Voltage Regulators - DC DC Switching Controllers Series: Military, MIL-STD-883 Package: Tray Standard Package: 50 Mounting: SMD (SMT) Output Type: Transistor Driver Function: Step-Down Topology: Buck Frequency - Switching: 100Hz ~ 500kHz Number of Outputs: 1 Output Configuration: Positive Synchronous Rectifier: No Output Phases: 1 Duty Cycle (Max): 95% Clock Sync: No Package / Case: 20-CLCC Supplier Device Package: 20-CLCC (8.89x8.89) Temperature Range - Operating: -55°C ~ 125°C (TA) Supply Voltage - Operating: 30V ECCN: EAR99 Fake Threat In the Open Market: 50 pct. HTSUS: 8542.39.0001 Mfr: Microchip Technology Other Names: 150-SG1843L Base Product Number: SG1843
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Description
Win Source Part Number: 1250177-SG1843L Category: Integrated Circuits (ICs)>PMIC - Voltage Regulators - DC DC Switching Controllers Series: Military, MIL-STD-883 Package: Tray Standard Package: 50 Mounting: SMD (SMT) Output Type: Transistor Driver Function: Step-Down Topology: Buck Frequency - Switching: 100Hz ~ 500kHz Number of Outputs: 1 Output Configuration: Positive Synchronous Rectifier: No Output Phases: 1 Duty Cycle (Max): 95% Clock Sync: No Package / Case: 20-CLCC Supplier Device Package: 20-CLCC (8.89x8.89) Temperature Range - Operating: -55°C ~ 125°C (TA) Supply Voltage - Operating: 30V ECCN: EAR99 Fake Threat In the Open Market: 50 pct. HTSUS: 8542.39.0001 Mfr: Microchip Technology Other Names: 150-SG1843L Base Product Number: SG1843
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Datasheet
Datasheet Summary
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The SG1843L is a current mode PWM controller designed for off-line fixed-frequency switching power supplies. It features a low start-up current of less than 1mA and includes automatic feed-forward compensation, pulse-by-pulse current limiting, and under-voltage lockout. The device operates at a frequency of 500kHz and is optimized for driving N-channel MOSFETs with a high-current totem-pole output capable of 1A peak. The SG1843L is specified for a military temperature range of -55¬8C to 125¬8C, making it suitable for demanding applications. Its internal bandgap reference is trimmed to ¬±1% over temperature, ensuring stable performance. This controller is ideal for engineers looking for a reliable solution in power supply design with enhanced load response characteristics and built-in protection features.

Datasheet Summary
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The SG1843L is a current mode PWM controller designed for off-line fixed-frequency switching power supplies. It features a low start-up current of less than 1mA and includes automatic feed-forward compensation, pulse-by-pulse current limiting, and under-voltage lockout. The device operates at a frequency of 500kHz and is optimized for driving N-channel MOSFETs with a high-current totem-pole output capable of 1A peak. The SG1843L is specified for a military temperature range of -55¬8C to 125¬8C, making it suitable for demanding applications. Its internal bandgap reference is trimmed to ¬±1% over temperature, ensuring stable performance. This controller is ideal for engineers looking for a reliable solution in power supply design with enhanced load response characteristics and built-in protection features.

Suppliers

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Description
Supplier Links
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers - 1250177-SG1843L - Win Source Electronics
Laguna Hills, CA, United States
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers
1250177-SG1843L
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers 1250177-SG1843L
Win Source Part Number: 1250177-SG1843L Category: Integrated Circuits (ICs)>PMIC - Voltage Regulators - DC DC Switching Controllers Series: Military, MIL-STD-883 Package: Tray Standard Package: 50 Mounting: SMD (SMT) Output Type: Transistor Driver Function: Step-Down Topology: Buck Frequency - Switching: 100Hz ~ 500kHz Number of Outputs: 1 Output Configuration: Positive Synchronous Rectifier: No Output Phases: 1 Duty Cycle (Max): 95% Clock Sync: No Package / Case: 20-CLCC Supplier Device Package: 20-CLCC (8.89x8.89) Temperature Range - Operating: -55°C ~ 125°C (TA) Supply Voltage - Operating: 30V ECCN: EAR99 Fake Threat In the Open Market: 50 pct. HTSUS: 8542.39.0001 Mfr: Microchip Technology Other Names: 150-SG1843L Base Product Number: SG1843

Win Source Part Number: 1250177-SG1843L
Category: Integrated Circuits (ICs)>PMIC - Voltage Regulators - DC DC Switching Controllers
Series: Military, MIL-STD-883
Package: Tray
Standard Package: 50
Mounting: SMD (SMT)
Output Type: Transistor Driver
Function: Step-Down
Topology: Buck
Frequency - Switching: 100Hz ~ 500kHz
Number of Outputs: 1
Output Configuration: Positive
Synchronous Rectifier: No
Output Phases: 1
Duty Cycle (Max): 95%
Clock Sync: No
Package / Case: 20-CLCC
Supplier Device Package: 20-CLCC (8.89x8.89)
Temperature Range - Operating: -55°C ~ 125°C (TA)
Supply Voltage - Operating: 30V
ECCN: EAR99
Fake Threat In the Open Market: 50 pct.
HTSUS: 8542.39.0001
Mfr: Microchip Technology
Other Names: 150-SG1843L
Base Product Number: SG1843

Buy Now Datasheet
DC DC Switching Controllers - 150-SG1843L-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
150-SG1843L-ND
DC DC Switching Controllers 150-SG1843L-ND
Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-CLCC (8.89x8.89)

Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-CLCC (8.89x8.89)

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PMIC - Voltage Regulators - DC DC Switching Controllers - SG1843L - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Controllers
SG1843L
PMIC - Voltage Regulators - DC DC Switching Controllers SG1843L
CURRENT MODE PWMS, HIGH-RELIABIL

CURRENT MODE PWMS, HIGH-RELIABIL

Supplier's Site Datasheet
DC DC Switching Controllers - SG1843L - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
DC DC Switching Controllers
SG1843L
DC DC Switching Controllers SG1843L
Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-CLCC (8.89x8.89)

Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-CLCC (8.89x8.89)

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Technical Specifications

  Win Source Electronics DigiKey Lingto Electronic Limited Quarktwin Technology Ltd.
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number 1250177-SG1843L 150-SG1843L-ND SG1843L SG1843L
Product Name Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers DC DC Switching Controllers
Configuration / Function Buck Buck
Output Voltage Type Transistor Driver Fixed; Transistor Driver
Package Type Other; Tray Other; 20-CLCC Other; 20-CLCC
Special Features Multiple Outputs; Synchronous Rectification
fsw 0.1000 to 500 kHz 0.1000 to 500 kHz 0.1000 to 500 kHz 0.1000 to 500 kHz
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