TLVH431BCDBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
TLVH431BCDBVRG4 is a low-voltage adjustable precision shunt voltage regulator from Texas Instruments with output adjustable from 1.24 V to 18 V and 80 mA maximum output current in a 5-pin SOT-23 package. Ideal for feedback control and voltage reference circuits. From $0.40 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TLVH431BCDBVRG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2911(MOQ 600)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable output voltage from 1.24 V to 18 V using two external resistors for flexible precision reference and regulator design
- Low reference voltage of 1.246 V enabling operation in low-supply embedded systems down to 1.24 V
- 80 mA maximum output current supporting shunt regulation in power supply feedback and error amplifier applications
- Compact 5-pin SOT-23 (R-PDSO-G5) RoHS-compliant package for space-efficient PCB integration in portable electronics
Applications
The TLVH431BCDBVRG4 is used as a feedback reference in switching power supply error amplifiers and linear regulator control loops where an adjustable precision shunt from 1.24 V to 18 V is required. Its low 1.246 V reference voltage suits low-supply systems such as 3.3 V and 5 V point-of-load converters where standard 2.5 V references would not operate. The 5-pin SOT-23 package and 80 mA output current also make it appropriate for overvoltage protection and LED driver bias circuits in compact consumer electronics.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 18V |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.08A |
| Output Voltage-Max | 1.246V |
| Output Voltage-Min | 1.234V |
| Output Voltage-Nom | 1.24V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 1.24V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 138ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 0.5% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLVH431BCDBVRG4:
Voltage Reference, 1 Output, 1.24V, Trim/Adjustable, BIPolar, PDSO5
Frequently Asked Questions
Over what output voltage range can the TLVH431BCDBVRG4 be adjusted, and what sets the minimum threshold for use in low-voltage power supplies?
The TLVH431BCDBVRG4 is adjustable from 1.24 V (its internal reference voltage) up to 18 V using a resistor divider on the reference pin. The 1.24 V minimum reference threshold means it can be used in power supply feedback networks operating from supplies as low as 1.5 V, making it suitable for sub-2 V point-of-load regulator designs where standard 2.5 V shunt references cannot operate.
How much output current can the TLVH431BCDBVRG4 sink, and what type of load regulation applications does this support?
The TLVH431BCDBVRG4 can sink up to 80 mA of output current, making it adequate for use as the error amplifier reference in switching regulators and linear LDOs with moderate feedback network currents. For loads requiring more than 80 mA direct shunt current, an external NPN pass transistor can be added to boost the effective sink capability beyond the device's own 80 mA limit.
How does the TLVH431BCDBVRG4 compare to the TL431 in a low-voltage 3.3 V feedback circuit, and which is the better choice?
The TLVH431BCDBVRG4's 1.24 V reference threshold is lower than the TL431's 2.495 V minimum, making it the preferred choice when the regulated output voltage must be set below 2.5 V. In a 3.3 V feedback application where the output is set to 1.8 V, the TLVH431 operates correctly while the TL431 cannot meet its 2.5 V minimum cathode voltage requirement at such low output settings.
For a compact 5 V to 3.3 V switching converter feedback loop, how should the resistor divider be sized with the TLVH431BCDBVRG4 to set 3.3 V output?
To set 3.3 V output using the TLVH431BCDBVRG4's 1.246 V reference, the resistor divider ratio should satisfy R1/R2 = (Vout/Vref) - 1 = (3.3/1.246) - 1 ≈ 1.65. Using standard values such as R1 = 16.5 kΩ and R2 = 10 kΩ achieves the 3.3 V setpoint, with the 80 mA sink capability ensuring the shunt regulator remains stable across the converter's feedback current range.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 600+ | $0.3359 | $201.54 |
| 770+ | $0.3247 | $250.02 |
| 1035+ | $0.2911 | $301.29 |
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