PTL432LIBCDBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
PTL432LIBCDBZR is a precision adjustable shunt voltage regulator by Texas Instruments with optimized reference current, available in a compact SOT-23 3-pin package for low-current feedback and reference applications. Key specs: two-terminal adjustable shunt regulator, optimized reference current, SOT-23 package. Available in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PTL432LIBCDBZR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision adjustable shunt voltage regulator with optimized low reference current for battery efficiency
- Two-terminal design (cathode/anode) with external resistors setting the regulation voltage
- SOT-23 3-pin package for minimal PCB footprint in portable and space-constrained designs
- Introduced in August 2018 with modern precision analog process technology
- Texas Instruments reliability with competitive accuracy and temperature stability specifications
Applications
The PTL432LIBCDBZR is used as a programmable voltage reference and error amplifier in switching power supply feedback networks, precision current limiters, and battery charger regulation circuits. Its optimized reference current and compact SOT-23 package make it ideal for low-power portable electronics, IoT sensor nodes, and wearable devices where quiescent current budget and PCB space are at a premium.
Specifications
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PTL432LIBCDBZR:
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 type of device is the PTL432LIBCDBZR and how is it different from a standard TL431?
The PTL432LIBCDBZR is a two-terminal adjustable precision shunt voltage regulator with an optimized reference current, representing an enhanced version of the classic TL431/TL432 shunt regulator architecture. The PTL432 series from Texas Instruments features a tighter initial accuracy specification and optimized (lower) reference pin current compared to standard TL431 devices, making it more suitable for precision low-power designs.
How is the regulation voltage set on the PTL432LIBCDBZR?
The output regulation voltage of the PTL432LIBCDBZR is programmed using two external resistors connected between the output (cathode), the reference input pin, and ground in a voltage divider configuration. By selecting the appropriate resistor ratio, the regulation voltage can be set to any value above the minimum internal reference voltage, providing flexible voltage reference capability.
What package does the PTL432LIBCDBZR use?
The PTL432LIBCDBZR is housed in a 3-pin SOT-23 package (BZR suffix), one of the smallest standard SMD packages with dimensions of approximately 1.3mm x 2.9mm x 1mm. The three pins are cathode (K), anode (A), and reference (R), providing the essential connections for shunt regulation with external resistor programming.
When was the PTL432LIBCDBZR introduced and is it in active production?
The PTL432LIBCDBZR was introduced on August 26, 2018, and is in active production from Texas Instruments. The YTEOL (Years To End of Life) value of 0 indicates it is a newer product still in active growth phase rather than approaching end-of-life, making it a sound choice for new designs requiring a precision shunt voltage reference in a miniature SOT-23 package.
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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.
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