仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 1.8V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | 1.2s Typical |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The NCP308SN180T1G is an ON Semiconductor fixed-output switching regulator (buck converter) from the NCP308 family. It is designed for compact, energy-efficient DC-DC conversion in battery-powered and space-constrained electronics. Key features typically include high efficiency, current-mode control, soft-start, enable/shutdown pin, undervoltage lockout, over‑current/short‑circuit protection, and thermal shutdown. The SN180T1G suffix indicates a specific compact surface-mount package variant. Applications include powering digital cores, microcontrollers/FPGA rails, and other low-voltage loads in portable devices. For exact electrical specs (input range, output voltage, max current, switching frequency) and pinout, consult the NCP308SN180T1G datasheet.
Features
Key features of NCP308SN180T1G (8-pin HV PWM controller for offline SMPS):
- High-voltage startup: internal current source for off-line operation
- Fixed-frequency, current-mode PWM control for flyback converters
- Cycle-by-cycle current limit for short-circuit protection
- Enable input to disable/enable operation
- Overvoltage protection and robust fault handling
- Thermal shutdown to prevent damage
- Undervoltage lockout on Vcc for reliable startup
- Soft-start to reduce inrush and EMI
- Low quiescent current in standby
- Packaging: 8-pin device (NCP308SN180T1G) suitable for compact SMPS designs
Note: For exact electrical specs (voltages, frequency, protection thresholds) please refer to the official datasheet.
- High-voltage startup: internal current source for off-line operation
- Fixed-frequency, current-mode PWM control for flyback converters
- Cycle-by-cycle current limit for short-circuit protection
- Enable input to disable/enable operation
- Overvoltage protection and robust fault handling
- Thermal shutdown to prevent damage
- Undervoltage lockout on Vcc for reliable startup
- Soft-start to reduce inrush and EMI
- Low quiescent current in standby
- Packaging: 8-pin device (NCP308SN180T1G) suitable for compact SMPS designs
Note: For exact electrical specs (voltages, frequency, protection thresholds) please refer to the official datasheet.
Pinout
- Pin count: 8 pins (8-pin package).
- Function: 1.8 V fixed-output low-dropout regulator (LDO) power-management device.
- Function: 1.8 V fixed-output low-dropout regulator (LDO) power-management device.
Manufacturer
- Manufacturer: ON Semiconductor (onsemi).
- What kind of company: A global American semiconductor company that designs and manufactures energy-efficient integrated circuits and power-management devices for automotive, industrial, communications, and consumer applications. Headquartered in Phoenix, Arizona.
- What kind of company: A global American semiconductor company that designs and manufactures energy-efficient integrated circuits and power-management devices for automotive, industrial, communications, and consumer applications. Headquartered in Phoenix, Arizona.
Application
NCP308SN180T1G is a fixed 1.8V step-down (buck) regulator. Typical application areas include:
- Core/VR power for microprocessors, FPGAs, memory, and ASICs
- Point-of-load power in mobile and consumer electronics
- Automotive electronic control units (ECUs) and infotainment power rails
- Industrial controllers, sensors, data loggers, and other embedded systems
- Networking and telecom equipment power supplies
In short: any application needing an efficient 1.8V supply rail from a higher input voltage in mobile, automotive, industrial, and embedded electronics.
- Core/VR power for microprocessors, FPGAs, memory, and ASICs
- Point-of-load power in mobile and consumer electronics
- Automotive electronic control units (ECUs) and infotainment power rails
- Industrial controllers, sensors, data loggers, and other embedded systems
- Networking and telecom equipment power supplies
In short: any application needing an efficient 1.8V supply rail from a higher input voltage in mobile, automotive, industrial, and embedded electronics.
Package
SOT-23-5 (SC-74A) surface-mount package; RoHS-compliant (T1G/Tape & Reel).
