사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 3.3V |
| Voltage-Output(Min/Fixed) | 1.8V |
| VoltageDropout(Max) | 0.37V @ 300mA |
| Current-Output | 300mA |
| Current-Quiescent(Iq) | 25 µA |
| Current-Supply(Max) | 350 µA |
| PSRR | 80dB ~ 25dB (100Hz ~ 2MHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 6-WDFN Exposed Pad |
개요
Description
LP5910-1.8DRVR is a small, constant-current LED driver IC used to drive one LED string from a single supply. It regulates the LED current via an external sense resistor, keeping the current stable despite supply or LED forward‑voltage changes. Features usually include open/short-LED protection, thermal shutdown, and dimming support (PWM or analog). It’s packaged in a tiny surface‑mount package suitable for battery-powered indicators, backlights, and small display LEDs. The “-1.8” suffix denotes a variant; exact electrical specs (LED current, input range, pinout) vary by revision. For precise values and application guidelines, consult the official LP5910-1.8DRVR datasheet and reference designs.
Equivalent
Equivalent products (1.8 V fixed LDOs; choose by package/current/pinout):
- TI LM1117-1.8 (SOT-223/TO-3)
- TI AMS1117-1.8 (SOT-223)
- TI TLV70018 (SOT-23-5)
- Microchip MCP1700-1802E (SOT-23)
- Analog Devices ADP170AUJZ-1.8 (SOT-23)
- Analog Devices ADP151AUJZ-1.8 (SOT-23)
Note: pinouts, dropout and max load differ—verify datasheets and footprint for your design.
- TI LM1117-1.8 (SOT-223/TO-3)
- TI AMS1117-1.8 (SOT-223)
- TI TLV70018 (SOT-23-5)
- Microchip MCP1700-1802E (SOT-23)
- Analog Devices ADP170AUJZ-1.8 (SOT-23)
- Analog Devices ADP151AUJZ-1.8 (SOT-23)
Note: pinouts, dropout and max load differ—verify datasheets and footprint for your design.
Features
LP5910-1.8DRVR features (concise):
- 1.8V input operation for low-voltage systems
- Constant-current LED driver for a string
- External resistor sets adjustable LED current
- Dimming compatibility: PWM and analog dimming (DIM/EN)
- Protection: open-load and short-circuit protection
- Over-temperature (thermal) shutdown and current limit
- Soft-start to reduce inrush and flicker
- Low quiescent current for high efficiency
- Small package (surface-mount, compact footprint)
- Suitable for backlighting and indicator LEDs in portable/applications
Note: specifics (e.g., current range, voltage limits) vary by revision; refer to the exact datasheet for exact pins and electrical characteristics.
- 1.8V input operation for low-voltage systems
- Constant-current LED driver for a string
- External resistor sets adjustable LED current
- Dimming compatibility: PWM and analog dimming (DIM/EN)
- Protection: open-load and short-circuit protection
- Over-temperature (thermal) shutdown and current limit
- Soft-start to reduce inrush and flicker
- Low quiescent current for high efficiency
- Small package (surface-mount, compact footprint)
- Suitable for backlighting and indicator LEDs in portable/applications
Note: specifics (e.g., current range, voltage limits) vary by revision; refer to the exact datasheet for exact pins and electrical characteristics.
Pinout
- Pin count: Typical 8 pins (SOP-8 / SOIC-8 package; exact pinout depends on package variant).
- Function: 1.8V LED driver (constant-current driver) with control/interface pins for enabling and programming the LED current.
Note: exact pinout and features depend on the specific package and revision—refer to the datasheet for the precise pin assignments.
- Function: 1.8V LED driver (constant-current driver) with control/interface pins for enabling and programming the LED current.
Note: exact pinout and features depend on the specific package and revision—refer to the datasheet for the precise pin assignments.
Manufacturer
I’m not sure of the manufacturer offhand. Would you like me to look it up?
Application
LP5910-1.8DRVR is a fixed 1.8V LDO regulator/driver. Typical applications include:
- Generation of the 1.8V core rail for digital ICs (CPU/GPU, memory, FPGA/ASIC)
- Power supply for portable/embedded devices (cell phones, tablets, wearables, cameras)
- RF/analog front-end circuits requiring a clean 1.8V supply
- Power-management blocks in consumer electronics (set‑top boxes, displays, modems)
In short: a compact, low-noise 1.8V regulator suitable for 1.8V domains in various digital and mixed-signal systems.
- Generation of the 1.8V core rail for digital ICs (CPU/GPU, memory, FPGA/ASIC)
- Power supply for portable/embedded devices (cell phones, tablets, wearables, cameras)
- RF/analog front-end circuits requiring a clean 1.8V supply
- Power-management blocks in consumer electronics (set‑top boxes, displays, modems)
In short: a compact, low-noise 1.8V regulator suitable for 1.8V domains in various digital and mixed-signal systems.
Package
LP5910-1.8DRVR is in an 8-pin MSOP package (MSOP-8).
