仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage Dropout (Max) | 0.4V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 31 µA |
| PSRR | 52dB (1kHz ~ 1MHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
TLV75518PDQNR is a fixed-output low-dropout (LDO) regulator from TI in the TLV755 family. It provides a regulated 1.8 V rail from a higher input voltage, suitable for powering microcontrollers, digital logic, memory, and other ICs in portable electronics. The PDQNR suffix indicates TI’s small, RoHS-compliant PDQ package (lead-free, tape-and-reel). Key points: fixed 1.8 V output; low dropout and low quiescent current; fast transient response; protection features such as current limit and thermal shutdown (and standard LDO protections). Typical applications include handheld devices, wearables, and embedded systems needing a clean 1.8 V supply. For exact electrical specs, input range, recommended capacitors, ESR requirements, and package pinout, refer to the TI TLV75518 datasheet and product page.
Equivalent
Here are common cross-references for a 1.8 V LDO around ~150 mA in similar small packages:
- TI TLV70018
- Microchip MCP1700-1802E
- Analog Devices ADP170AUJZ-1.8
- On Semiconductor NCP4681-1.8
- Torex XC6206P182MR
- AMS1117-1.8
Note: pinout and package differ; verify electrical specs and footprints before substituting.
- TI TLV70018
- Microchip MCP1700-1802E
- Analog Devices ADP170AUJZ-1.8
- On Semiconductor NCP4681-1.8
- Torex XC6206P182MR
- AMS1117-1.8
Note: pinout and package differ; verify electrical specs and footprints before substituting.
Features
Here are the key features of TLV75518PDQNR:
- Fixed output: 1.8 V LDO regulator
- Input range: 2.7 V to 5.5 V
- Output current: up to ~150 mA
- Very low quiescent current (low standby power)
- Enable (EN) pin to disable/enable the regulator
- Low dropout voltage with fast transient response
- Robust protection: current limit/short-circuit protection and thermal shutdown
- Stable with ceramic capacitors (no strict ESR needed)
- ESD protection
- Packaging: PDQNR (8-pin, compact 2×2 mm QFN)
- Fixed output: 1.8 V LDO regulator
- Input range: 2.7 V to 5.5 V
- Output current: up to ~150 mA
- Very low quiescent current (low standby power)
- Enable (EN) pin to disable/enable the regulator
- Low dropout voltage with fast transient response
- Robust protection: current limit/short-circuit protection and thermal shutdown
- Stable with ceramic capacitors (no strict ESR needed)
- ESD protection
- Packaging: PDQNR (8-pin, compact 2×2 mm QFN)
Pinout
- Pin count: 8 pins
- Function: TI TLV75518PDQNR is a fixed 1.8 V low-dropout regulator (LDO) with IN, OUT, GND, EN (enable), and BYP (bypass) pins; providing a regulated 1.8 V output (other pins typically NC in the package).
- Function: TI TLV75518PDQNR is a fixed 1.8 V low-dropout regulator (LDO) with IN, OUT, GND, EN (enable), and BYP (bypass) pins; providing a regulated 1.8 V output (other pins typically NC in the package).
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits, headquartered in Dallas, Texas.
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits, headquartered in Dallas, Texas.
Application
TLV75518PDQNR is a fixed 1.8 V, 150 mA LDO with enable. Typical application areas include:
- Power rails for microcontrollers, digital cores, and memory in battery-powered devices
- IoT sensors, wearables, handhelds, and portable medical devices
- RF/transceiver modules and wireless subsystems (e.g., Bluetooth, Zigbee)
- Camera/image-sensor subsystems and display back-ends
- Sensor front-ends, data acquisition, and analog/digital circuits that need a stable 1.8 V rail with easy on/off control
- Power rails for microcontrollers, digital cores, and memory in battery-powered devices
- IoT sensors, wearables, handhelds, and portable medical devices
- RF/transceiver modules and wireless subsystems (e.g., Bluetooth, Zigbee)
- Camera/image-sensor subsystems and display back-ends
- Sensor front-ends, data acquisition, and analog/digital circuits that need a stable 1.8 V rail with easy on/off control
Package
SOT-23-5 (SC-70-5) package. The PDQNR suffix indicates the 5-pin SOT-23-style package with RoHS and tape-and-reel.
