PTL432LIBIDBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The PTL432LIBIDBZR is an adjustable precision shunt voltage regulator from Texas Instruments with an optimized reference current architecture, designed for low-power flyback converter feedback and precision reference applications. Operating in a 3-pin SOT-23 package, it adjusts cathode voltage from approximately 1.24V to 36V using an external resistor divider. Its minimized reference current reduces power dissipation and simplifies optocoupler feedback design in switching power supplies.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PTL432LIBIDBZR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTL432LIBIDBZR?
- Adjustable precision shunt regulator from 1.24V to 36V via external resistor divider
- Optimized reference current architecture minimizes power loss in light-load feedback circuits
- Stable voltage regulation over temperature for reliable switching power supply control
- 3-pin SOT-23 package with compact footprint for space-constrained power supply designs
- Wide cathode current range supporting diverse operating conditions from µA to mA loads
- Compatible with optocoupler-based isolated feedback networks in flyback converters
What is PTL432LIBIDBZR used for?
The PTL432LIBIDBZR is used in isolated flyback converter feedback loops, offline LED driver power stages, and adjustable voltage reference circuits in industrial and consumer power supplies. Its optimized reference current makes it particularly effective in low-standby-power applications such as chargers, adapters, and appliance power supplies where minimizing no-load power consumption is required by energy efficiency regulations.
What are the specifications of PTL432LIBIDBZR?
| Date Of Intro | 2018-08-26 |
| YTEOL | 0 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTL432LIBIDBZR datasheet?
PTL432LIBIDBZR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTL432LIBIDBZR?
Compatible alternatives and drop-in replacements for PTL432LIBIDBZR:
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PDSO3
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PDSO3
Frequently Asked Questions
What is the output voltage range of the PTL432LIBIDBZR?
The PTL432LIBIDBZR adjustable precision shunt regulator supports a cathode voltage range from approximately 1.24V up to 36V, set by an external resistor divider network connected to the reference (REF) pin.
What package does the PTL432LIBIDBZR come in, and how many pins does it have?
The PTL432LIBIDBZR is housed in a 3-pin SOT-23 surface-mount package, making it suitable for space-constrained designs in switching power supplies and portable equipment.
What are the typical applications for the PTL432LIBIDBZR?
This device is commonly used in low-power flyback converter feedback loops, precision voltage reference circuits, and optocoupler-based isolated feedback topologies in switching power supply designs.
How does the PTL432LIBIDBZR reduce power dissipation compared to standard shunt regulators?
Texas Instruments optimized the reference current architecture of the PTL432LIBIDBZR to minimize the reference pin current, which lowers overall power dissipation in the circuit and simplifies the design of optocoupler feedback networks.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
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