| ₹ 3860.01 includes GST and import duties. | |
| B2B customers can avail ₹ 588.65 ITC on this product | |
| 100% Secure Payments | 100% Genuine product |
Description
Product Overview
LT1129-3.3 is micropower low dropout regulator with shutdown. 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. It is 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 fl ow from output to input. This makes the device 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. Applications include low current regulator, regulator for battery-powered systems, post regulator for switching supplies and 5V to 3.3V logic regulator.
- No protection diodes needed
- Controlled quiescent current in dropout
- Reverse battery protection, no reverse output current
- Thermal limiting
- Typical regulated output voltage of 3.3V (VIN = 3.8V, IOUT = 1mA, TJ = 25°C)
- Typical dropout voltage of 0.45V (ILOAD = 700mA, TJ = 25°C)
- Maximum line regulation of 10mV (ΔVIN = 4.8V to 20V, IOUT = 1mA, full operating temp)
- Maximum load regulation of 20mV (ΔILOAD = 1mA to 700mA, TJ = 25°C)
- 3-lead plastic SOT-223 package, -55°C to 125°C temperature range
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
Product details
| Output Type | Fixed |
| Input Voltage Max | 30V |
| Output Voltage Nom | 3.3V |
| Output Voltage Min | - |
| Polarity | Positive Output |
| Output Current Max | 700mA |
| Dropout Voltage Typ @ Current | 450mV |
| IC Case / Package | SOT-223 |
| Operating Temperature Min | -55°C |
| Product Range | 3.3V 700mA LDO Voltage Regulators |
| SVHC | Lead (04-Feb-2026) |
| Input Voltage Min | 4.15V |
| No. of Outputs | 1Outputs |
| Output Voltage - Nom | 3.3V |
| Output Voltage Max | - |
| Max Output Current | 700mA |
| Dropout Voltage - Typ @ Current | 450mV |
| IC Mounting | Surface Mount |
| No. of Pins | 3Pins |
| Operating Temperature Max | 125°C |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | ANALOG DEVICES |
| Part Number | LT1129MPST-3.3#PBF |
| Quantity | Each |
| Technical Data Sheet (80.00B) EN | View or download |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Bulk Discount
| Quantity | Price |
| 2 | ₹ 3782.81 |
| 3-5 | ₹ 3744.21 |
| 5-10 | ₹ 3667.01 |
| 10+ | ₹ 3589.81 |
Bulk discount will be automatically applied during checkout based on quantity.