LT1790 - Micropower SOT-23 Low Dropout Reference Family

Features

High Accuracy:
A Grade—0.05% Max
B Grade—0.1% Max
Low Drift:
A Grade—10ppm/°C Max
B Grade—25ppm/°C Max
Low Thermal Hysteresis 40ppm (Typical) –40°C to 85°C
Low Supply Current: 60µA Max
Sinks and Sources Current
Low Dropout Voltage
Guaranteed Operational –40°C to 125°C
Wide Supply Range to 18V
Available Output Voltage Options: 1.25V, 2.048V,2.5V, 3V, 3.3V, 4.096V and 5V
Low Profile (1mm) ThinSOT™ Package

Typical Application

Description

The LT1790 is a family of SOT-23 micropower low dropout series references that combine high accuracy and low drift with low power dissipation and small package size. These micropower references use curvature compensation to obtain a low temperature coefficient and trimmed precision thin-film resistors to achieve high output accuracy. In addition, each LT1790 is post-package trimmed to greatly reduce the temperature coefficient and increase the output accuracy. Output accuracy is further assured by excellent line and load regulation. Special care has been taken to minimize thermally induced hysteresis.

The LT1790s are ideally suited for battery-operated systems because of their small size, low supply current and reduced dropout voltage. These references provide supply current and power dissipation advantages over shunt references that must idle the entire load current to operate. Since the LT1790 can also sink current, it can operate as a micropower negative voltage reference with the same performance as a positive reference.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

SOT-23

Order Info

Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)^*	RoHS Data
LT1790ACS6-1.25	SOT-23	6	C	$3.42		View
LT1790ACS6-1.25#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-1.25#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-1.25#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-1.25#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-1.25#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-2.048	SOT-23	6	C	$3.42		View
LT1790ACS6-2.048#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-2.048#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-2.048#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-2.048#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-2.048#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-2.5	SOT-23	6	C	$3.42		View
LT1790ACS6-2.5#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-2.5#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-2.5#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-2.5#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-2.5#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-3	SOT-23	6	C	$3.42		View
LT1790ACS6-3#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-3#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-3#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-3#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-3#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-3.3	SOT-23	6	C	$3.42		View
LT1790ACS6-3.3#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-3.3#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-3.3#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-3.3#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-3.3#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-4.096	SOT-23	6	C	$3.42		View
LT1790ACS6-4.096#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-4.096#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-4.096#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-4.096#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-4.096#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-5	SOT-23	6	C	$3.42		View
LT1790ACS6-5#PBF	SOT-23	6	C	$3.42		View
LT1790ACS6-5#TR	SOT-23	6	C	$3.42	$2.91	View
LT1790ACS6-5#TRM	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-5#TRMPBF	SOT-23	6	C	$3.42	$2.93	View
LT1790ACS6-5#TRPBF	SOT-23	6	C	$3.42	$2.91	View
LT1790AIS6-1.25	SOT-23	6	I	$3.82		View
LT1790AIS6-1.25#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-1.25#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-1.25#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-1.25#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-1.25#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-2.048	SOT-23	6	I	$3.82		View
LT1790AIS6-2.048#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-2.048#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-2.048#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-2.048#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-2.048#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-2.5	SOT-23	6	I	$3.82		View
LT1790AIS6-2.5#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-2.5#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-2.5#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-2.5#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-2.5#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-3	SOT-23	6	I	$3.82		View
LT1790AIS6-3#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-3#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-3#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-3#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-3#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-3.3	SOT-23	6	I	$3.82		View
LT1790AIS6-3.3#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-3.3#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-3.3#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-3.3#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-3.3#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-4.096	SOT-23	6	I	$3.82		View
LT1790AIS6-4.096#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-4.096#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-4.096#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-4.096#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-4.096#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-5	SOT-23	6	I	$3.82		View
LT1790AIS6-5#PBF	SOT-23	6	I	$3.82		View
LT1790AIS6-5#TR	SOT-23	6	I	$3.82	$3.31	View
LT1790AIS6-5#TRM	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-5#TRMPBF	SOT-23	6	I	$3.82	$3.33	View
LT1790AIS6-5#TRPBF	SOT-23	6	I	$3.82	$3.31	View
LT1790BCS6-1.25	SOT-23	6	C	$1.51		View
LT1790BCS6-1.25#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-1.25#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-1.25#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-1.25#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-1.25#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-2.048	SOT-23	6	C	$1.51		View
LT1790BCS6-2.048#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-2.048#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-2.048#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-2.048#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-2.048#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-2.5	SOT-23	6	C	$1.51		View
LT1790BCS6-2.5#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-2.5#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-2.5#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-2.5#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-2.5#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-3	SOT-23	6	C	$1.51		View
LT1790BCS6-3#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-3#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-3#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-3#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-3#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-3.3	SOT-23	6	C	$1.51		View
LT1790BCS6-3.3#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-3.3#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-3.3#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-3.3#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-3.3#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-4.096	SOT-23	6	C	$1.51		View
LT1790BCS6-4.096#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-4.096#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-4.096#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-4.096#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-4.096#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-5	SOT-23	6	C	$1.51		View
LT1790BCS6-5#PBF	SOT-23	6	C	$1.51		View
LT1790BCS6-5#TR	SOT-23	6	C	$1.51	$1.25	View
LT1790BCS6-5#TRM	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-5#TRMPBF	SOT-23	6	C	$1.51	$1.27	View
LT1790BCS6-5#TRPBF	SOT-23	6	C	$1.51	$1.25	View
LT1790BIS6-1.25	SOT-23	6	I	$2.12		View
LT1790BIS6-1.25#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-1.25#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-1.25#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-1.25#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-1.25#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-2.048	SOT-23	6	I	$2.12		View
LT1790BIS6-2.048#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-2.048#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-2.048#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-2.048#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-2.048#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-2.5	SOT-23	6	I	$2.12		View
LT1790BIS6-2.5#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-2.5#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-2.5#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-2.5#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-2.5#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-3	SOT-23	6	I	$2.12		View
LT1790BIS6-3#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-3#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-3#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-3#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-3#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-3.3	SOT-23	6	I	$2.12		View
LT1790BIS6-3.3#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-3.3#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-3.3#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-3.3#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-3.3#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-4.096	SOT-23	6	I	$2.12		View
LT1790BIS6-4.096#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-4.096#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-4.096#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-4.096#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-4.096#TRPBF	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-5	SOT-23	6	I	$2.12		View
LT1790BIS6-5#PBF	SOT-23	6	I	$2.12		View
LT1790BIS6-5#TR	SOT-23	6	I	$2.12	$1.56	View
LT1790BIS6-5#TRM	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-5#TRMPBF	SOT-23	6	I	$2.12	$1.58	View
LT1790BIS6-5#TRPBF	SOT-23	6	I	$2.12	$1.56	View
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^* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

Handheld Instruments
Negative Voltage References
Industrial Control Systems
Data Acquisition Systems
Battery-Operated Equipment

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Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

Related models available in LTspice IV
LT1790-1.25
LT1790-2.048
LT1790-2.5
LT1790-3.3
LT1790-3
LT1790-4.096
LT1790-5

Technical Support

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LT1790 - Micropower SOT-23 Low Dropout Reference Family

Features

Typical Application

Description

Packaging

SOT-23

Order Info

Package Variations and Pricing

Demo Boards

Applications

People Who Viewed This Product Also Viewed

Product Notifications

Simulate

Technical Support

Order Now

Documentation

Datasheet

Application Note

Design Note

Reliability Data

Product Selector Card

LT Journal