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
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
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 |
|---|---|---|---|---|---|---|
| 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 | |
| Buy Now • Request Samples | ||||||
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 | |
| Buy Now | |||
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
Technical Support
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- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.