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0.5% low-voltage wide-operating current adjustable precision shunt regulator (reverse pinout)
SOT-23 (DBZ)-3Manufacturer:
Mfr.Part #:
TLVH432BQDBZR
Datasheet:
VO (V):
1.24
Initial Accuracy (max) (%):
0.5
VO Adj (min) (V):
1.24
VO Adj (max) (V):
18
EDA/CAD Models:
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The TLVH431 and TLVH432 devices are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 7-2). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLVH431 and TLVH432 devices are ideal voltage references in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.
VO (V) | 1.24 | Initial accuracy (max) (%) | 0.5 |
VO adj (min) (V) | 1.24 | VO adj (max) (V) | 18 |
Iz for regulation (min) (µA) | 60 | Reference voltage (V) | adjustable |
Rating | Catalog | Temp coeff (max) (ppm/°C) | 138 |
Operating temperature range (°C) | -40 to 125, -40 to 85, 0 to 70 | Iout/Iz (max) (mA) | 80 |
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