LT1962

RECOMMENDED FOR NEW DESIGNS

300mA, Low Noise, Micropower LDO Regulators

Data Sheet Product Selection Table
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Overview

  • Low Noise: 20µVRMS (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
LT1962
300mA, Low Noise, Micropower LDO Regulators
3.3V Low Noise Regulator Dropout Voltage Product Package 1
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Documentation

Data Sheet 1

User Guide 2

Application Note 1

Technical Articles 1

Data Sheet

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

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Hot Swap Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Ideal Diodes and PowerPath Controllers 1
LTC4417
RECOMMENDED FOR NEW DESIGNS Prioritized PowerPath™ Controller
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Tools & Simulations

LTspice 1

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

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

eval board
schematic 1
DC339A-B

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.

eval board
schematic 2
schematic 3
schematic 4
SCP-LT1962-EVALZ

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.
DC339A-B
LT1962EMS8 Demo Board | Low Noise LDO Regulator, 2.3V ≤ VIN ≤ 20V, VOUT = 1.22/2.5/3.0/3.3/5VOUT @ 300mA
DC339A-A - Schematic
SCP-LT1962-EVALZ
LT1962 Signal Chain Evaluation Board | 300mA Low Noise Positive LDO
LT1962 Signal Chain Evaluation Board LT1962 Signal Chain Evaluation Board - Top View LT1962 Signal Chain Evaluation Board - Bottom View

Reference Designs

MAX 10 NEEK Dev Kit
MAX 10 NEEK Dev Kit
MAX 10 NEEK Block Diagram
MAX 10 NEEK Power Tree
MAX 10 NEEK Development Kit Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Figure 1. Weigh Scale System Using the AD4170-4 (Simplified Schematic: All Connections Not Shown)
Figure 1. Weigh Scale System Using the AD4170-4 (Simplified Schematic: All Connections Not Shown)
EVAL-AD4170-4 Board Photo Angle View
EVAL-AD4170-4 Board Photo Bottom View
EVAL-AD4170-4 Board Photo Top View
CN0608 Circuits from the lab

Precision Weigh Scale Design Using the AD4170-4, Low Noise, Precision, 24-Bit Σ-Δ ADC with Internal PGA

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Features and Benefits

  • Full featured evaluation board for the AD4170-4
  • On-board 2.5 V ADR4525 and LTC6655 references
  • SMB connectors for AC/DC inputs
  • ADXL10002 on-board vibration sensor
  • PC control in conjunction with Analog Devices, Inc., SDP (EVALSDP-CK1Z)
  • PC software for control and data analysis (time domain and frequency domain)
  • Compatible interface with ACE, IIO Scope, Python, and MATLAB
MAX 10 NEEK Development Kit
MAX 10 NEEK Dev Kit
MAX 10 NEEK Block Diagram
MAX 10 NEEK Power Tree
CN0600
Weigh Scale Design Using the AD4190-4, Low Noise, Precision, 24-Bit Σ-Δ ADC with Internal PGA
Figure 1. Weigh Scale System Using the AD4190-4 (Simplified Schematic: All Connections Not Shown)
CN0601
Precision Weigh Scale Design Using a 24-Bit Sigma-Delta ADC with Internal PGA and AC Excitation
Figure 1. Weigh Scale (AC Excitation)
CN0608
Precision Weigh Scale Design Using the AD4170-4, Low Noise, Precision, 24-Bit Σ-Δ ADC with Internal PGA
Figure 1. Weigh Scale System Using the AD4170-4 (Simplified Schematic: All Connections Not Shown)
EVAL-AD4170-4 Board Photo Angle View
EVAL-AD4170-4 Board Photo Bottom View
EVAL-AD4170-4 Board Photo Top View

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