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
Key Features
- 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
Applications
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.
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 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.
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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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