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LT1129IQ The Analog Devices LT1129IQ is a micropower low dropout linear voltage regulator capable of supplying 700mA output current. It features a low quiescent current and is suitable for battery-powered applications.
Mfr Part #:

LT1129IQ

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices LT1129IQ is a micropower low dropout linear voltage regulator capable of supplying 700mA output current. It features a low quiescent current and is suitable for battery-powered applications.
✓ Total Stock: 2,100 pcs
$ Price Range: $0.28

LT1129IQ Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
100 pcs
On Request
100 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LT1129IQ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
SVHC Present
Supplier Device Package
Voltage
Voltage Dropout (Max)
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LT1129IQ Description

Short technical summary and product information.

The LT1129IQ from Analog Devices is a micropower low dropout regulator designed for battery-powered systems. It can supply up to 700mA of output current with a dropout voltage of 400mV at maximum output. The device operates with a low quiescent current of 50µA, which remains controlled even in dropout conditions, and consumes only 16µA in shutdown mode.

 

Key features include stability with small output capacitors (3.3µF), reverse battery protection, and no reverse output current flow. The LT1129IQ offers an adjustable output voltage ranging from 3.8V to 30V. It also includes thermal limiting for protection.

 

This regulator is available in a surface mount 5-DDPAK package (TO-263BA). Its low quiescent current and shutdown capability make it an ideal choice for applications requiring efficient power management, such as low current regulators, post regulators for switching supplies, and 5V to 3.3V logic regulation.

LT1129IQ Quick Information

Product Type: Voltage Regulator
Canonical Name: Analog Devices / Maxim Integrated LT1129IQ Micropower Low Dropout Regulator
Subcategory: Low Dropout (LDO) Regulator

LT1129IQ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LT1129IQ Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LT1129IQ Features

  • Micropower low dropout regulator.
  • 700mA output current capability.
  • 400mV dropout voltage at maximum output.
  • Adjustable output from 3.8V to 30V.
  • Low quiescent current for battery efficiency.

LT1129IQ Applications

  • Ideal for battery-powered systems.
  • Suitable for low current regulation.
  • Used as post regulator for switchers.
  • Provides 5V to 3.3V logic regulation.

LT1129IQ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage range of the LT1129IQ?

The output voltage is adjustable from 3.8V to 30V.

What is the maximum output current of the LT1129IQ?

The maximum output current is 700mA.

What is the dropout voltage of the LT1129IQ?

The dropout voltage is 0.4V at 700mA output current.

What is the operating temperature range of the LT1129IQ?

The operating temperature range is -40°C to 125°C.

What package is the LT1129IQ available in?

The LT1129IQ is available in a 5-DDPAK (TO-263-6, D²Pak) surface-mount package.

Does the LT1129IQ have protection features?

Yes, it includes over-temperature and reverse polarity protection.

What is the quiescent current of the LT1129IQ?

The quiescent current is 50µA typical during operation and 16µA in shutdown mode.

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