Micropower Low Dropout Regulators with Shutdown
|Manufacturer :||Analog Devices, Inc|
|Product Categories :||Voltage Regulators|
|Datasheet:||LT1129IQ-3.3 Datasheet (PDF)|
|RoHs Status:||Lead free / RoHS Compliant|
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LT1129IQ-3.3 Product Details
The LT1129/LT1129-3.3/LT1129-5 are micropower low dropout regulators with shutdown. The devices are capable of supplying 700mA of output current with a dropout voltage of 400mV at maximum output. Designed for use in battery-powered systems, the low quiescent current, 50μA operating and 16μA in shutdown, make them an ideal choice. The quiescent current does not rise in dropout as it does with many other low dropout PNP regulators.
Other features of the LT1129/LT1129-3.3/LT1129-5 include the ability to operate with small output capacitors. They are stable with only 3.3μF on the output while most older devices require between 10μF and 100μF for stability. Also the input may be connected to ground or a reverse voltage without reverse current ﬂow from output to input. This makes the LT1129/LT1129-3.3/LT1129-5 ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions, only 16μA will ﬂow from the output pin to ground. The devices are available in 5-lead TO-220, 5-lead DD-Pak and 3-lead SOT-223 packages.
- 400mV Dropout Voltage
- 700mA Output Current
- 50μA Quiescent Current
- No Protection Diodes Needed
- Adjustable Output from 3.8V to 30V
- 3.3V and 5V Fixed Output Voltages
- Controlled Quiescent Current in Dropout
- 16μA Quiescent Current in Shutdown
- Stable with 3.3μF Output Capacitor
- Reverse Battery Protection
- No Reverse Output Current
- Thermal Limiting
- Surface Mount SOT-223 and DD-Pak Packages
- Low Current Regulator
- Regulator for Battery-Powered Systems
- Post Regulator for Switching Supplies
- 5V to 3.3V Logic Regulator
- Number of Outputs
- Vinmin | V
- Vinmax | V
- Output Currenttyp | A
- Output Current 2typ | A
- Output Voltage
- 3.3, 5, Adj
- RMS Noisetyp | V
- Isupplytyp | A
- Dropout Voltagetyp | V
LT1129 Technical Documentation/Data sheet
LT1129IQ-3.3 Related Products
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- Q: How does Jotrin guarantee that LT1129IQ-3.3 is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT1129IQ-3.3 devices; we pay more attention to the channels and quality of LT1129IQ-3.3 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
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- Q: What is the process for returns or replacement of LT1129IQ-3.3?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the LT1129IQ3.3 we delivered, we will accept the replacement or return of the LT1129IQ-3.3 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LT1129IQ-3.3.
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(1)Inform us within 90 days
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