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                      1. Home
                      2. Semiconductors - ICs
                      3. Power Management ICs - PMIC
                      4. Voltage Regulators
                      5. LDO Voltage Regulators
                      Print Page

                      LT1129CS8-3.3#PBF

                      LDO Voltage Regulator, Fixed, 4.15 V to 30 V in, 0.45 V / 0.7 A out, NSOIC-8

                      ANALOG DEVICES LT1129CS8-3.3#PBF
                      Image is for illustrative purposes only. Please refer to product description.
                      ManufacturerANALOG DEVICES
                      Manufacturer Part NoLT1129CS8-3.3#PBF
                      Order Code4027081
                      Product Range3.3V 700mA LDO Voltage Regulators
                      Technical Datasheet

                      Data Sheet

                      See all Technical Docs
                      147 In Stock

                      Need more?

                      147 Delivery in 3-4 Business Days(UK stock)
                      QuantityPrice
                      1+HK$75.880
                      10+HK$47.520
                      25+HK$43.160
                      100+HK$41.420
                      300+HK$40.560
                      500+HK$39.690
                      1000+HK$38.820
                      Price for:Each
                      Minimum: 1
                      Multiple: 1
                      HK$75.88
                      Add Part No. / Line Note
                      Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                      This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                      Product Information

                      ManufacturerANALOG DEVICES
                      Manufacturer Part NoLT1129CS8-3.3#PBF
                      Order Code4027081
                      Product Range3.3V 700mA LDO Voltage Regulators
                      Technical Datasheet

                      Data Sheet

                      Output TypeFixed
                      Input Voltage Min4.15V
                      Input Voltage Max30V
                      No. of Outputs1Outputs
                      Output Voltage Nom3.3V
                      Output Voltage - Nom3.3V
                      Output Voltage Min-
                      Output Voltage Max-
                      PolarityPositive Output
                      Output Current Max700mA
                      Max Output Current700mA
                      Dropout Voltage Typ @ Current450mV
                      Dropout Voltage - Typ @ Current450mV
                      IC MountingSurface Mount
                      IC Case / PackageNSOIC
                      No. of Pins8Pins
                      Operating Temperature Min0°C
                      Operating Temperature Max125°C
                      Product Range3.3V 700mA LDO Voltage Regulators
                      MSLMSL 1 - Unlimited
                      SVHCNo SVHC (21-Jan-2025)

                      Product Overview

                      LT1129-3.3 is a micropower low dropout regulator with shutdown. This device is 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 device 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. This makes the device ideal for backup power situations where the output is held high and the input is at ground or reversed. It is used in application such as low current regulator, regulator for battery-powered systems, post regulator for switching supplies, 5V to 3.3V logic regulator etc.

                      • No protection diodes needed
                      • Controlled quiescent current in dropout
                      • Reverse battery protection
                      • No reverse output current, thermal limiting
                      • Regulated output voltage is 3.3V typical
                      • Line regulation is 1.5mV typical at (ΔVIN = 4.8V to 20V, IOUT = 1mA)
                      • Load regulation is 6mV typical at (ΔILOAD = 1mA to 700mA, TJ = 25°C)
                      • Ripple rejection is 64dB typical at (VIN – VOUT = 1V (Avg), VRIPPLE = 0.5VP-P)
                      • Operating junction temperature is 0°C to 125°C
                      • Package style is 8-lead NSOIC

                      Notes

                      ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

                      Technical Specifications

                      Output Type

                      Fixed

                      Input Voltage Max

                      30V

                      Output Voltage Nom

                      3.3V

                      Output Voltage Min

                      -

                      Polarity

                      Positive Output

                      Max Output Current

                      700mA

                      Dropout Voltage - Typ @ Current

                      450mV

                      IC Case / Package

                      NSOIC

                      Operating Temperature Min

                      0°C

                      Product Range

                      3.3V 700mA LDO Voltage Regulators

                      SVHC

                      No SVHC (21-Jan-2025)

                      Input Voltage Min

                      4.15V

                      No. of Outputs

                      1Outputs

                      Output Voltage - Nom

                      3.3V

                      Output Voltage Max

                      -

                      Output Current Max

                      700mA

                      Dropout Voltage Typ @ Current

                      450mV

                      IC Mounting

                      Surface Mount

                      No. of Pins

                      8Pins

                      Operating Temperature Max

                      125°C

                      MSL

                      MSL 1 - Unlimited

                      Technical Docs (2)

                      Technical Data Sheet EN

                      Product Change Notice EN

                      Legislation and Environmental

                      Country of Origin:
                      Country in which last significant manufacturing process was carried outCountry of Origin:
                      Philippines
                      Country in which last significant manufacturing process was carried out
                      Tariff No:85423990
                      US ECCN:EAR99
                      EU ECCN:NLR
                      RoHS Compliant:Yes

                      RoHS

                      RoHS Phthalates Compliant:Yes

                      RoHS

                      SVHC:No SVHC (21-Jan-2025)
                      Download Product Compliance Certificate

                      Product Compliance Certificate

                      Weight (kg):.000001
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