LT1763 - 500mA, Low Noise, LDO Micropower Regulators

Features

  • Low Noise: 20μVRMS (10Hz to 100kHz)
  • Output Current: 500mA
  • Low Quiescent Current: 30μA
  • Wide Input Voltage Range: 1.8V to 20V
  • Low Dropout Voltage: 300mV
  • 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 SO and 12-Lead (4mm × 3mm) DFN Packages

Typical Application

LT1763 Typical Application
LT1763 Typical Application

Description

The LT®1763 series are micropower, low noise, low dropout regulators. The devices are capable of supplying 500mA of output current with a dropout voltage of 300mV. 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 LT1763 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 LT1763 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 LT1763 regulators are available in 8-lead SO and 12-lead, low profile (4mm × 3mm × 0.75mm) DFN packages.

Packaging

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

SO-8, DFN-12

LT1763 Package Drawing
LT1763 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1763CDE DFN 12 C $2.79 $1.95 View
LT1763CDE#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE#TR DFN 12 C $2.05 View
LT1763CDE#TRPBF DFN 12 C $2.05 View
LT1763CDE-1.5 DFN 12 C $2.79 $1.95 View
LT1763CDE-1.5#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-1.5#TR DFN 12 C $2.05 View
LT1763CDE-1.5#TRPBF DFN 12 C $2.05 View
LT1763CDE-1.8 DFN 12 C $2.79 $1.95 View
LT1763CDE-1.8#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-1.8#TR DFN 12 C $2.05 View
LT1763CDE-1.8#TRPBF DFN 12 C $2.05 View
LT1763CDE-2.5 DFN 12 C $2.79 $1.95 View
LT1763CDE-2.5#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-2.5#TR DFN 12 C $2.05 View
LT1763CDE-2.5#TRPBF DFN 12 C $2.05 View
LT1763CDE-3 DFN 12 C $2.79 $1.95 View
LT1763CDE-3#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-3#TR DFN 8 C $2.05 View
LT1763CDE-3#TRPBF DFN 8 C $2.05 View
LT1763CDE-3.3 DFN 12 C $2.79 $1.95 View
LT1763CDE-3.3#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-3.3#TR DFN 12 C $2.05 View
LT1763CDE-3.3#TRPBF DFN 12 C $2.05 View
LT1763CDE-5 DFN 12 C $2.79 $1.95 View
LT1763CDE-5#PBF DFN 12 C $2.79 $1.95 View
LT1763CDE-5#TR DFN 12 C $2.05 View
LT1763CDE-5#TRPBF DFN 12 C $2.05 View
LT1763CS8 SO 8 C $2.30 $1.95 View
LT1763CS8#PBF SO 8 C $2.30 $1.95 View
LT1763CS8#TR SO 8 C $2.01 View
LT1763CS8#TRPBF SO 8 C $2.01 View
LT1763CS8-1.5 SO 8 C $2.30 $1.95 View
LT1763CS8-1.5#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-1.5#TR SO 8 C $2.01 View
LT1763CS8-1.5#TRPBF SO 8 C $2.01 View
LT1763CS8-1.8 SO 8 C $2.30 $1.95 View
LT1763CS8-1.8#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-1.8#TR SO 8 C $2.01 View
LT1763CS8-1.8#TRPBF SO 8 C $2.01 View
LT1763CS8-2.5 SO 8 C $2.30 $1.95 View
LT1763CS8-2.5#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-2.5#TR SO 8 C $2.01 View
LT1763CS8-2.5#TRPBF SO 8 C $2.01 View
LT1763CS8-3 SO 8 C $2.30 $1.95 View
LT1763CS8-3#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-3#TR SO 8 C $2.01 View
LT1763CS8-3#TRPBF SO 8 C $2.01 View
LT1763CS8-3.3 SO 8 C $2.30 $1.95 View
LT1763CS8-3.3#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-3.3#TR SO 8 C $2.01 View
LT1763CS8-3.3#TRPBF SO 8 C $2.01 View
LT1763CS8-5 SO 8 C $2.30 $1.95 View
LT1763CS8-5#PBF SO 8 C $2.30 $1.95 View
LT1763CS8-5#TR SO 8 C $2.01 View
LT1763CS8-5#TRPBF SO 7 C $2.01 View
LT1763IDE DFN 12 I $3.07 $2.15 View
LT1763IDE#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE#TRPBF DFN 12 I $2.21 View
LT1763IDE-1.5 DFN 12 I $3.07 $2.15 View
LT1763IDE-1.5#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-1.5#TRPBF DFN 12 I $2.21 View
LT1763IDE-1.8#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-1.8#TRPBF DFN 12 I $2.21 View
LT1763IDE-2.5#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-2.5#TRPBF DFN 12 I $2.21 View
LT1763IDE-3#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-3#TRPBF DFN 12 I $2.21 View
LT1763IDE-3.3 DFN 12 I $3.07 $2.15 View
LT1763IDE-3.3#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-3.3#TRPBF DFN 12 I $2.21 View
LT1763IDE-5#PBF DFN 12 I $3.07 $2.15 View
LT1763IDE-5#TRPBF DFN 12 I $2.21 View
LT1763IS8#PBF SO 8 I $3.07 $2.15 View
LT1763IS8#TRPBF SO 8 I $2.21 View
LT1763IS8-1.5#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-1.5#TRPBF SO 8 I $2.21 View
LT1763IS8-1.8#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-1.8#TRPBF SO 8 I $2.21 View
LT1763IS8-2.5#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-2.5#TRPBF SO 8 I $2.21 View
LT1763IS8-3#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-3#TRPBF SO 8 I $2.21 View
LT1763IS8-3.3#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-3.3#TRPBF SO 8 I $2.21 View
LT1763IS8-5#PBF SO 8 I $3.07 $2.15 View
LT1763IS8-5#TRPBF SO 8 I $2.21 View
LT1763MPDE DFN 12 MP View
LT1763MPDE#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE#TR DFN 12 MP View
LT1763MPDE#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-1.5 DFN 12 MP View
LT1763MPDE-1.5#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-1.5#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-1.8#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-1.8#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-2.5#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-2.5#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-3#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-3#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-3.3 DFN 12 MP View
LT1763MPDE-3.3#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-3.3#TRPBF DFN 12 MP $6.01 View
LT1763MPDE-5#PBF DFN 12 MP $8.50 $5.95 View
LT1763MPDE-5#TRPBF DFN 12 MP $6.01 View
LT1763MPS8 SO 8 MP $8.50 $5.95 View
LT1763MPS8#PBF SO 8 MP $8.50 $5.95 View
LT1763MPS8#TR SO 8 MP $6.01 View
LT1763MPS8#TRPBF SO 8 MP $6.01 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.

Part Number Description Price Documentation
DC368A LT1763CS8 | Low Noise LDO Regulator, 2.3-20Vin, Jmpr Sel Vout, 500mA @ 1.22,1.5,1.8,2.5,3.3, or 5Vout $75.00
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Applications

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

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Related models available in LTspice IV
LT1763-1.5
LT1763-1.8
LT1763-2.5
LT1763-3.3
LT1763-3
LT1763-5
LT1763

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