Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6.5V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 0.18V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 55 µA |
| Current - Supply (Max) | 600 µA |
| PSRR | 80dB ~ 40db (100Hz ~ 100kHz) |
| Control Features | Enable, Power Good, Soft Start |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Tổng quan
Description
LP5912-3.3DRVT is a fixed 3.3 V low-dropout linear regulator from TI (LP5912 family). It provides a stable 3.3 V rail from a higher input, with simple 3-pin connection (IN, GND, OUT) and no external resistor network to set the output.
Key points:
- Fixed 3.3 V output; intended for microcontrollers, sensors, RF modules, and other micro-power/compact designs.
- Features typically include low dropout, low quiescent current, good line/load regulation, and protection (short-circuit/thermal).
- Packaging: DRVT denotes a specific TI package variant; pinout is standard for a 3-pin LDO (IN, GND, OUT). Check datasheet for exact pin assignment and package dimensions.
- Usage basics: place a suitable input capacitor close to IN and an output capacitor close to OUT as recommended in the datasheet to ensure stability.
For exact electrical specs (input range, dropout, quiescent current, max load, and protection details) and the precise pinout/package dimensions, consult the LP5912-3.3DRVT datasheet on TI’s website.
Key points:
- Fixed 3.3 V output; intended for microcontrollers, sensors, RF modules, and other micro-power/compact designs.
- Features typically include low dropout, low quiescent current, good line/load regulation, and protection (short-circuit/thermal).
- Packaging: DRVT denotes a specific TI package variant; pinout is standard for a 3-pin LDO (IN, GND, OUT). Check datasheet for exact pin assignment and package dimensions.
- Usage basics: place a suitable input capacitor close to IN and an output capacitor close to OUT as recommended in the datasheet to ensure stability.
For exact electrical specs (input range, dropout, quiescent current, max load, and protection details) and the precise pinout/package dimensions, consult the LP5912-3.3DRVT datasheet on TI’s website.
Equivalent
Equivalent 3.3 V fixed LDOs to LP5912-3.3DRVT include: LM1117-3.3 (and LD1117V33), AMS1117-3.3, TLV1117-33, LT1763-3.3, MCP1700-33, XC6206P332MR. Note: pinout, package, dropout, and current rating vary; verify cross-reference and ensure your BOM footprint/current requirements.
Features
Here are common features for the LP5912-3.3DRVT fixed 3.3 V LDO regulator:
- Fixed 3.3 V output
- Low dropout regulator (suitable for battery operation)
- Low quiescent current
- Overcurrent/short-circuit protection
- Thermal shutdown protection
- Stable with appropriate output capacitor (low ESR, typical 2–10 μF range)
- Wide operating temperature range (industrial-grade)
- Package: DRVT variant (surface-mount) with tape-and-reel availability
Note: exact input voltage range and current capability depend on the specific datasheet revision.
- Fixed 3.3 V output
- Low dropout regulator (suitable for battery operation)
- Low quiescent current
- Overcurrent/short-circuit protection
- Thermal shutdown protection
- Stable with appropriate output capacitor (low ESR, typical 2–10 μF range)
- Wide operating temperature range (industrial-grade)
- Package: DRVT variant (surface-mount) with tape-and-reel availability
Note: exact input voltage range and current capability depend on the specific datasheet revision.
Pinout
- Pin count: 8 pins (in an 8-pin package such as MSOP/VQFN).
- Function: Fixed 3.3 V low-dropout regulator (LDO) with an enable/shutdown control; converts Vin to a regulated 3.3 V on VOUT.
- Function: Fixed 3.3 V low-dropout regulator (LDO) with an enable/shutdown control; converts Vin to a regulated 3.3 V on VOUT.
Manufacturer
- Manufacturer: Texas Instruments (TI)
- What kind of company: A global American semiconductor company that designs, manufactures, and sells analog, mixed-signal, and embedded processing integrated circuits for a wide range of electronics applications.
- What kind of company: A global American semiconductor company that designs, manufactures, and sells analog, mixed-signal, and embedded processing integrated circuits for a wide range of electronics applications.
Application
LP5912-3.3DRVT is a fixed 3.3V low-dropout regulator. Common applications include:
- Portable/embedded electronics: power for MCUs, DSPs, memory, sensors
- Analog/digital front-ends: op-amps, ADC/DAC supplies
- Post-regulator: derive 3.3V from higher rails (e.g., 5V)
- RF/Wireless modules and transceivers biasing
- Instrumentation and test equipment requiring a clean 3.3V rail
- General consumer electronics and any compact system needing a stable 3.3V supply (automotive-qualifications if applicable)
- Portable/embedded electronics: power for MCUs, DSPs, memory, sensors
- Analog/digital front-ends: op-amps, ADC/DAC supplies
- Post-regulator: derive 3.3V from higher rails (e.g., 5V)
- RF/Wireless modules and transceivers biasing
- Instrumentation and test equipment requiring a clean 3.3V rail
- General consumer electronics and any compact system needing a stable 3.3V supply (automotive-qualifications if applicable)
Package
LP5912-3.3DRVT comes in a SOT-23-5 (SC-70-5) package — a 5-pin small-outline LDO. It is typically shipped in Tape & Reel.
