LT1123CZ#PBF Analog Devices Integrated Circuit (Other) In Stock
LT1123CZ#PBF is a low dropout linear voltage regulator driver from Analog Devices in a TO-92 package. It supports input voltages from 5.4 V to 7.2 V with a maximum dropout voltage of 0.75 V. Available with Pb-free finish for RoHS-compliant designs requiring stable regulated outputs.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LT1123CZ#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7800(MOQ 500)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1123CZ#PBF?
- Ultra-low dropout voltage of 0.4 V nominal (0.75 V max), minimizing power dissipation in regulated supply rails
- Wide input voltage range of 5.4 V to 7.2 V with up to 30 V absolute maximum rating for robust operation
- Fixed-output configuration in compact TO-92 through-hole package for easy prototyping and low-volume production
What is LT1123CZ#PBF used for?
The LT1123CZ#PBF is suited for battery-powered portable instruments where minimizing headroom between supply and regulated output is critical. It serves as a regulator driver in automotive accessories, industrial sensor conditioning, and handheld test equipment operating from 5 V or 6 V supply rails. Its low dropout characteristic also makes it applicable in post-regulation stages downstream of switching converters.
What are the specifications of LT1123CZ#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1410 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.75V |
| Dropout Voltage1-Nom | 0.4V |
| Input Voltage Absolute-Max | 30V |
| Input Voltage-Max | 7.2V |
| Input Voltage-Min | 5.4V |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.02% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 4A |
| Output Voltage1-Max | 5.05V |
| Output Voltage1-Min | 4.95V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 1% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LT1123CZ#PBF datasheet?
LT1123CZ#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1123CZ#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of LT1123CZ#PBF and why does it matter for battery-powered designs?
The LT1123CZ#PBF has a nominal dropout voltage of 0.4 V and a maximum of 0.75 V. In battery-powered designs running from a nearly depleted 6 V battery, this low dropout ensures the regulator continues to deliver a stable output even when the supply is only 0.75 V above the target rail, extending usable battery life by hundreds of milliampere-hours compared to standard LDOs.
Which input voltage range is required to operate the LT1123CZ#PBF within its datasheet specifications?
The LT1123CZ#PBF operates within its rated specifications when the input voltage is between 5.4 V and 7.2 V. The absolute maximum input rating is 30 V; however, sustained operation outside the 5.4 V to 7.2 V window is not recommended for regulated output accuracy.
When would an engineer choose LT1123CZ#PBF over a switching regulator for a 5 V–6 V supply rail?
An engineer would select the LT1123CZ#PBF when the design requires low output noise below 100 µV RMS, minimal EMI, and a simple 3-pin TO-92 footprint with no inductor or large capacitor. For low-current loads where efficiency loss of less than 1 W is acceptable, the regulator's simplicity and clean output outweigh switching efficiency benefits.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.0100 | $1005.00 |
| 1000+ | $1.9000 | $1900.00 |
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