TLV74233PDQNR

TLV74233PDQNR is a Texas Instruments fixed-output low-dropout regulator (LDO) that provides a stable 3.3 V rail from a higher input voltage for portable/battery-powered electronics. It’s part of the TLV742 family and comes in the compact PDQNR surface-mount package. Typical features include: input range up to roughly 6 V, output current in the hundreds of milliamps, low dropout (a few hundred millivolts at moderate load), and low quiescent current, with protection such as current limit and thermal shutdown. The device is intended for simple 3.3 V power rails for microcontrollers, sensors, and mixed-signal ICs, offering good transient response. Use by connecting Vin to the supply, GND to ground, and Vout to the 3.3 V load, with the recommended input/output capacitors per the datasheet. Some variants include an enable pin to turn the regulator on/off. For exact specs, operating ranges, and pinout, consult the TI TLV74233PDQNR datasheet.

TLV74233PDQNR is a 3.3V fixed low-dropout regulator with an enable pin, in a small SOT-23-5 style package. Equivalents from other vendors are similar 3.3V fixed LDOs with EN in the same footprint (e.g., from RichTek, Diodes Inc, Torex, ST, Onsemi). For exact cross-references, I need your max load current and desired package. Share those specs and I’ll provide precise part numbers.

Here are the main features of the TLV74233PDQNR (3.3 V fixed LDO):
- Fixed output: 3.3 V
- Output current: up to ~150 mA
- Very low quiescent current: typically around tens of microamps
- Low dropout: only a few hundred millivolts at rated load
- Enable input: EN pin to disable the regulator for sleep/low power
- Stability with ceramic capacitors: works with 1 µF–10 µF output capacitors (ESR acceptable within a broad range)
- Protection features: overcurrent/short-circuit protection and thermal shutdown
- Good line/load regulation and fast transient response
- Packaging: PDQNR (compact device/package)
Note: exact numbers can vary slightly by lot and operating conditions; refer to the TI datasheet for precise specifications.

Pin count: 8 pins in the PDQ package.
Function: Fixed 3.3 V low-dropout regulator with enable. Pins typically include VIN, VOUT, GND, EN (enable), BYP (bypass for noise reduction via a capacitor), and several No-Connect pins in this package. EN controls on/off operation; BYP improves output noise when a capacitor is connected to it.

- Manufacturer: Texas Instruments (TI)
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing ICs and other electronic components.

TLV74233PDQNR is a 3.3V fixed LDO in a compact PDQ package. Typical application areas:
- Power rails for microcontrollers, sensors, ADC/DAC front-ends, and other mixed-signal peripherals in battery-powered or space-constrained embedded systems.
- IoT devices, wearables, and portable consumer electronics needing a stable 3.3V from higher inputs with low quiescent current.
- Post-regulator in PMICs or MCU memories, displays/backlights, and other digital/analog blocks requiring a clean 3.3V rail.

IT’s in TI’s PDQ package – a 5-pin SOT-23 style (SC-70-5) package.