LT1962 - 300mA, Low Noise, Micropower LDO Regulators

Features

  • 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

Typical Application

LT1962
LT1962
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Description

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 20µVRMS 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.

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Packaging

MS-8

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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1962EMS8 MSOP 8 E $2.00 $1.65 View
LT1962EMS8#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8#TR MSOP 8 E   $1.71 View
LT1962EMS8#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-1.5 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-1.5#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-1.5#TR MSOP 8 E   $1.71 View
LT1962EMS8-1.5#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-1.8 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-1.8#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-1.8#TR MSOP 8 E   $1.71 View
LT1962EMS8-1.8#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-2.5 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-2.5#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-2.5#TR MSOP 8 E   $1.71 View
LT1962EMS8-2.5#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-3 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-3#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-3#TR MSOP 8 E   $1.71 View
LT1962EMS8-3#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-3.3 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-3.3#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-3.3#TR MSOP 8 E   $1.71 View
LT1962EMS8-3.3#TRPBF MSOP 8 E   $1.71 View
LT1962EMS8-5 MSOP 8 E $2.00 $1.65 View
LT1962EMS8-5#PBF MSOP 8 E $2.00 $1.65 View
LT1962EMS8-5#TR MSOP 8 E   $1.71 View
LT1962EMS8-5#TRPBF MSOP 8 E   $1.71 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.

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Applications

  • Cellular Phones
  • Battery-Powered Systems
  • Noise-Sensitive Instrumentation Systems
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Simulate

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

For other simulation tools, visit our Design Simulation and Device Models page.

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