LT1962

RECOMMENDED FOR NEW DESIGNS

300mA, Low Noise, Micropower LDO Regulators

Part Models: 16
1ku List Price: Starting From $2.11

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Overview

Low Noise: 20µV_RMS (10Hz to 100kHz)
Output Current: 300mA
Low Quiescent Current: 30µA
Wide Input Voltage Range: 1.8V to 20V
Low Dropout Voltage: 270mV
Very Low Shutdown Current: < 1µA
No Protection Diodes Needed
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V
Adjustable Output from 1.22V to 20V
Stable with 3.3µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic Capacitors
Reverse Battery Protection
No Reverse Current
Overcurrent and Overtemperature Protected
8-Lead MSOP Package

The LT1962 series are micropower, low noise, low dropout regulators. The devices are capable of supplying 300mA of output current with a dropout voltage of 270mV. Designed for use in battery-powered systems, the low 30µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators.

A key feature of the LT1962 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µV_RMS over a 10Hz to 100kHz bandwidth. The LT1962 regulators are stable with output capacitors as low as 3.3µF. Small ceramic capacitors can be used without the series resistance required by other regulators.

Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The parts come in fixed output voltages of 1.5V, 1.8V, 2.5V, 3V, 3.3V and 5V, and as an adjustable device with a 1.22V reference voltage. The LT1962 regulators are available in the 8-lead MSOP package.

Applications

Cellular Phones
Battery-Powered Systems
Noise-Sensitive Instrumentation Systems

Part Models: 16
1ku List Price: Starting From $2.11

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT1962EMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-1.5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-1.5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-1.8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-1.8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-2.5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-2.5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-3#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-3#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-3.3#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-3.3#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962EMS8-5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962IMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1962IMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1962EMS8#PBF	PRODUCTION
LT1962EMS8#TRPBF	PRODUCTION
LT1962EMS8-1.5#PBF	PRODUCTION
LT1962EMS8-1.5#TRPBF	PRODUCTION
LT1962EMS8-1.8#PBF	PRODUCTION
LT1962EMS8-1.8#TRPBF	PRODUCTION
LT1962EMS8-2.5#PBF	PRODUCTION
LT1962EMS8-2.5#TRPBF	PRODUCTION
LT1962EMS8-3#PBF	PRODUCTION
LT1962EMS8-3#TRPBF	PRODUCTION
LT1962EMS8-5#PBF	PRODUCTION
LT1962EMS8-5#TRPBF	PRODUCTION
LT1962IMS8#PBF	PRODUCTION
LT1962IMS8#TRPBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LT1962EMS8#PBF	PRODUCTION
LT1962EMS8#TRPBF	PRODUCTION
LT1962EMS8-1.5#PBF	PRODUCTION
LT1962EMS8-1.5#TRPBF	PRODUCTION
LT1962EMS8-1.8#PBF	PRODUCTION
LT1962EMS8-1.8#TRPBF	PRODUCTION
LT1962EMS8-2.5#PBF	PRODUCTION
LT1962EMS8-2.5#TRPBF	PRODUCTION
LT1962EMS8-3#PBF	PRODUCTION
LT1962EMS8-3#TRPBF	PRODUCTION
LT1962EMS8-3.3#PBF	PRODUCTION
LT1962EMS8-3.3#TRPBF	PRODUCTION
LT1962EMS8-5#PBF	PRODUCTION
LT1962EMS8-5#TRPBF	PRODUCTION
LT1962IMS8#PBF	PRODUCTION
LT1962IMS8#TRPBF	PRODUCTION
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1962EMS8-3.3#PBF	PRODUCTION
LT1962EMS8-3.3#TRPBF	PRODUCTION
Jul 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]
		PCN22_0157_Form Material_Report Qualification Results Summary Delta Qualification Matrix Detailed Parts List
LT1962EMS8-3.3#PBF	PRODUCTION
LT1962EMS8-3.3#TRPBF	PRODUCTION
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices
		PCN22_0050_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1962EMS8-3.3#PBF	PRODUCTION
LT1962EMS8-3.3#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 2
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Parts	Product Life Cycle	Description
LT3085	RECOMMENDED FOR NEW DESIGNS	Adjustable 500mA Single Resistor Low Dropout Regulator

Tools & Simulations

LTspice 1

LT1962 Demo Circuit - Low Noise, µPower LDO Regulator (10V to 2.5V@300mA)

Models for the following parts are available in LTspice:

LT1962
LT1962-1.5
LT1962-1.8
LT1962-2.5
LT1962-3
LT1962-3.3
LT1962-5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LT1962 Signal Chain Evaluation Board | 300mA Low Noise Positive LDO

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Product Details

Demonstration circuit SCP-LT1962-EVALZ is a 20V, 300mA Low Dropout (LDO) regulator designed to allow low noise operation in noise sensitive circuits. It is easily configured for a wide output range and can provide extremely quiet operation with its high PSRR.

Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely:

SCP-INPUT-EVALZ
SCP-OUTPUT-EVALZ
SCP-1X5BKOUT-EVALZ
SCP-THRUBRD-EVALZ

SCP-FILTER-EVALZ
SCP-1X2BKOUT-EVALZ
SCP-5X1-EVALZ

To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design.

Note that the Demo Manual does not cover details important to the operation and configuration regarding the LT1962. Please refer to the LT1962 data sheet for a complete description of the part.

Resources

SCP-LT1962-EVALZ - Demo Manual (Rev.0)
2/1/2021

SCP-LT1962-EVALZ - Schematic
2/1/2021

LT1962EMS8 Demo Board | Low Noise LDO Regulator, 2.3V ≤ VIN ≤ 20V, VOUT = 1.22/2.5/3.0/3.3/5VOUT @ 300mA

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Product Details

Demonstration circuit DC339-B is a low noise micropower voltage regulator using the 300mA output current LT1962 linear regulator in an 8-lead MSOP package. The demo board has an input voltage range from 2.3V to 20V and a jumper-selectable output votlage that can be set to 1.22V, 2.5V, 3.0V, 3.3V, 5V or a user-defined value. The LT1962's low 20µVRMS (10Hz to 100kHz bandwidth) output noise and low 30µA quiescent current make the device ideal for voltage-controlled oscillators, RF power supplies and local regulators in larger systems.

Resources

DC339A - Schematic
9/24/2009

DC339A - Design File
9/24/2009

DC339A - Demo Manual
9/24/2009

Reference Designs

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Features and Benefits

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