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LDO Voltage Regulators LT1129 - Micropower Low Dropout Regulators with Shutdown

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Brands: Analog Devices, Inc

Mfr.Part #: LT1129CST-5

Datasheet: LT1129CST-5 Datasheet (PDF)

Package/Case: SOT223

Product Type: Discrete Semiconductors

RoHS Status:

Stock Condition: 2738 pcs, New Original

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Quick Quote

Please submit RFQ for LT1129CST-5 or email to us: Email: [email protected], we will contact you within 12 hours.

Ovaga has a large stock of LT1129CST-5 Discrete Semiconductors from Analog Devices, Inc and we guarantee that they are original,brand new parts sourced directly from Analog Devices, Inc We can provide quality testing reports for LT1129CST-5 upon your request. To obtain a quote, simply fill in the required quantity, contact name, and email address in the quick quote form on the right. Our sales representative will contact you within 12 hours.



Parameter Value Parameter Value
Case/Package SOT-223 Number of Pins 3
Dropout Voltage 450 mV Max Input Voltage 30 V
Max Operating Temperature 125 °C Min Input Voltage 4.15 V
Min Operating Temperature 0 °C Number of Outputs 1
Number of Regulators 1 Operating Supply Current 50 µA
Output Current 700 mA Output Voltage 5 V
Packaging Bulk Polarity Positive
Power Supply Rejection Ratio (PSRR) 64 dB Product Category LDO Voltage Regulators
RoHS No&nbsp-RoHS Version Available Package / Case SOT-3
Quiescent Current 50 uA Input Voltage, Min 4.15 V
Input Voltage, Max 30 V PSRR / Ripple Rejection - Typ 64 dB
Output Type Fixed Minimum Operating Temperature 0 C
Maximum Operating Temperature + 125 C Series LT1129
Brand Analog Devices Dropout Voltage - Max 700 mV
Height 1.8 mm Ib - Input Bias Current 300 nA
Line Regulation 1.5 mV Load Regulation 20 mV
Product Linear Regulators Product Type LDO Voltage Regulators
Subcategory PMIC - Power Management ICs


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US$0.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Key points

  • The LT1129CST-5 chip is a low dropout voltage regulator that is capable of providing a constant output voltage of 5V, even when the input voltage is slightly lower. It is designed to be used in various electronic devices, such as smartphones, tablets, and other portable devices. The chip offers high accuracy and efficiency, making it a popular choice for voltage regulation applications.
  • Equivalent

    Some equivalent products to the LT1129CST-5 chip may include the L4949EP5, LP2950-50, and the TLV733P-Q1.
  • Features

    The LT1129CST-5 is a low dropout linear regulator with a fixed 5V output. It has a maximum dropout voltage of 500mV, allowing it to regulate even when the input voltage is close to the output voltage. It also has a low quiescent current, thermal overload protection, and is available in a small surface mount package.
  • Pinout

    The LT1129CST-5 is a Low Dropout Linear Regulator with a pin count of 5. The pin functions are as follows: Pin 1- Input, Pin 2- Ground, Pin 3- Output, Pin 4- Adjust, Pin 5- Not Connected.
  • Manufacturer

    The manufacturer of the LT1129CST-5 is Analog Devices, Inc. It is a multinational semiconductor company specializing in designing and manufacturing integrated circuits and other electronic components for a wide range of industries, including automotive, healthcare, industrial, and consumer electronics.
  • Application Field

    The LT1129CST-5 is a low dropout regulator that can be applied in various areas, including portable devices, post regulators, battery-powered devices, industrial control systems, and automotive applications. It features a low dropout voltage, low quiescent current, and fast transient response, making it suitable for voltage regulation in these applications.
  • Package

    The LT1129CST-5 chip is available in a TO-263 package type. The form is surface mount, and the size of the package is approximately 10.16 mm x 9.14 mm x 2.29 mm.

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