Precision Programmable Reference Integrated Circuit IC

Name: Precision Programmable Reference Integrated Circuit IC
Brand: Guangdong Uchi Electronics Co.,Ltd

Precision Programmable Reference Integrated Circuit IC The SGM431x is a precision programmable shuntvoltage reference that can be used in manyapplications. It is a three-terminal adjustable-outputdevice that can keep stable under all capacitive loads.It requires two external resistors in application to set theoutput voltage is to any value between VREF and 36V.All versions have a maximum operating current of100mA.The SGM431x features low dynamic impedance, lownoise, and low

Place of Origin Dongguan China

SOT-23, θJA 245℃/W

Packaging Details Standard

SOIC-8, θJA 126℃/W

Junction Temperature +150℃

Lead Temperature (Soldering, 10s) +260℃

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Product Description

Precision Programmable Reference Integrated Circuit IC

The SGM431x is a precision programmable shuntvoltage reference that can be used in manyapplications. It is a three-terminal adjustable-outputdevice that can keep stable under all capacitive loads.It requires two external resistors in application to set theoutput voltage is to any value between VREF and 36V.All versions have a maximum operating current of100mA.The SGM431x features low dynamic impedance, lownoise, and low temperature coefficient to ensure astable output voltage over a wide range of operatingtemperatures and currents. These high performancesmake it very suitable for multiple applications, such asprecision audio components and flyback switchingpower supplies.The SGM431 is available in Green SOIC-8, SOT-23,SOT-89-3, SOT-23-5 and SC70-6 packages. TheSGM431B is available in Green SOIC-8, SOT-23,SOT-89-3 and SOT-23-5 packages

Key Features

● Adjustable Output Voltage: VREF to 36V
● Sink-Current Capability: 1mA to 100mA
● Reference Voltage Tolerance at +25℃:
 SGM431: 1% (Standard Grade)
 SGM431B: 0.5% (B Grade)
● Output Impedance: 0.1Ω (TYP)
● Temperature Drift: 5mV (TYP)
● High Stability under Capacitive Load
● Low Output Noise
● -40℃ to +125℃ Operating Temperature Range
● SGM431 is available in Green SOIC-8, SOT-23,SOT-89-3, SOT-23-5 and SC70-6 Packages
● SGM431B is available in Green SOIC-8, SOT-23,SOT-89-3 and SOT-23-5 Packages

Applications

Portable, Battery-Powered Equipment
Voltage Monitoring
Flyback Switching Power Supplies
Instrumentation
Product Testing
Precision Audio Components

Typical Application

Pin Configurations

Product Selection Guide

Part Number	Vo (V)	Reference Voltage	Initial Accuracy Max (%)	VO Ad Min (V)	VO Adj Max (V)	IZ for Regulation Min (μA)	Temperature Coefficient Max (ppm/℃)	Operating Temperature Range (℃)	IOUT/IKA Max (mA)	Package	Features
SGM431	2.5	Adj	0.5,1	2.5	36	400	60	-40 to +125	100	SOIC-8,SOT-23,SOT-89-3,SOT-23-5,SC70-6	Adjustable Precision Shunt Regulator
SGM431VB	1.24	Adj	0.5	1.24	18	65		-40 to +125	70	SOT-23	Adjustable Precision Shunt Regulator
SGM432	2.5	Adj	0.5,1	2.5	36	400	60	-40 to +125	100	SOT-89-3,SOT-23,SOT-23-5	Adjustable Precision Shunt Regulator
SGM4025	1.25,2.048	Fixed	0.1			230†	30	-40 to +125	10	UTQFN-1.5×1.5-8L	30ppm/℃, 230μA, CMOS Voltage Reference
SGM4027	2.048,2.5	Fixed	0.1			245†	35	-40 to +125	10	SOT-23	35ppm/℃, 245μA, CMOS Voltage Reference
SGM4029	2.5,3.0,4.096	Fixed	0.1			1450†	10	-40 to +125	10	SOIC-8	Low Noise, Low Drift, Precision Voltage Reference
SGM4040B	2.5	Fixed	0.2			48	20†	-40 to +125	15†	SOT-23	Micro-Power, Precision Shunt Voltage Reference
SGM4051C	1.2,Adj	Fixed,Adj	0.5	1.206	10	45	20†	-40 to +125	12†	SC70-5,SOT-23	Micro-Power, Precision Shunt Voltage Reference

Note: † Typical Values @ 25℃

Integrated circuits (ICs) serve as the foundation of modern electronics, offering small size, low power consumption, strong performance and high reliability. They are widely used in consumer electronics, industrial applications, communications, automotive electronics, medical equipment, and aerospace/defense systems.

Electronic components and circuit board applications

Uchi Electronics provides high-performance analog and mixed-signal processing solutions for industrial automation, new energy, automotive, communications, computing, consumer electronics and medical equipment applications.

This solution demonstrates the application of integrated circuits in the base station RF power supply board. For assistance selecting the right product, please contact our technical support team.