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.
Related Guides
TLV76033 Selection Guide: Headroom, Heat, and Sourcing
Choose a TLV76033 3.3-V supply using manufacturer ratings, load profiles, dropout calculations, thermal checks, and exact orderable parts.
Nov 14, 2026
DP83TG720SWRHATQ1 Automotive Ethernet Board Design Guide
A practical DP83TG720SWRHATQ1 board checklist for host interfaces, startup, channel validation, qualified variants, and sourcing.
Nov 14, 2026
BQ76942PFBR Battery Monitor Selection and Procurement Guide
Choose BQ76942PFBR by cell count, protection architecture, factory configuration, measurement needs, and a controlled sourcing specification.
Nov 13, 2026
SEP0640Q38CB Surge Protection Board Validation Guide
Validate a SEP0640Q38CB protection network through operating-envelope review, surge-current routing, recovery tests, and assembly checks.
Nov 13, 2026
Why Buy from FindMyChip
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.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.0100 | $1005.00 |
| 1000+ | $1.9000 | $1900.00 |
| 10000+ | $1.7800 | $17800.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit