RT9080-18GJ5

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RT9080-18GJ5

IC REG LIN 1.8V 600MA TSOT23-5

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 1.8V
VoltageDropout(Max) 0.83V @ 600mA
Current-Output 600mA
Current-Quiescent(Iq) 4 µA
PSRR 75dB (1kHz)
ControlFeatures Enable
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case SOT-23-5 Thin, TSOT-23-5

概述

Description

RT9080-18GJ5 is Richtek’s fixed-output step-down (buck) DC-DC regulator. It generates a stable 1.8 V rail from a higher input supply, suitable for powering IC cores in mobile and embedded systems.
Key points:
- Output: fixed 1.8 V
- Package: 8-pin (GJ5 suffix indicates the footprint)
- Topology: integrated switching regulator (requires external inductor and input/output capacitors)
- Features: enable/shutdown control, soft-start, overcurrent protection, and thermal/UVLO protections
- Typical use: CPU/GPU/memory core rails, other low-voltage IC power rails
Note: exact electrical specs, pinout, and recommended external components are in the datasheet.

Features

RT9080-18GJ5 is a fixed-output 1.8V step-down (buck) regulator from Richtek. Key features typically include:
- Fixed 1.8V output
- Synchronous buck with integrated high-side/low-side FETs for high efficiency
- Wide input voltage range suitable for various power rails
- Current-mode control with fast transient response
- Enable/shutdown control
- Soft-start and output discharge
- Protection: over-current/short-circuit, thermal shutdown, UVLO
- Power-on reset for system initialization
- Compact lead-free package (GJ5 variant)
Note: for exact electrical specs (input range, switching frequency, efficiency, quiescent current, tolerance, etc.), please consult the specific datasheet for RT9080-18GJ5.

Package

It’s an 8-pin DFN package (2.5 × 3.0 mm) with an exposed pad (GJ5 variant).

Manufacturer

- Manufacturer: RichTek Technology Corporation (Richtek).
- Company type: A Taiwanese fabless semiconductor company that designs and markets analog power-management ICs (PMICs), including switching regulators and LDOs, for consumer electronics and other applications.

Application

- Fixed 1.8V synchronous buck regulator for compact PMICs and low-voltage rails
- Power logic cores and memory rails in SoCs, MCUs, and digital ICs
- Point‑of‑load regulator in mobile devices and embedded systems
- Battery-powered consumer electronics (smartphones, tablets, wearables, cameras, set‑top boxes, routers)
Note: Suitable for high-efficiency, small-footprint 1.8V rails in portable/embedded applications.

Equivalent

RT9080-18GJ5 is a 1.8 V fixed LDO regulator. Possible cross equivalents include:
- TI TLV70018
- Analog Devices ADP170AU-1.8
- On Semiconductor NCP4681-1.8
- Microchip MIC5219-1.8
- AMS1117-1.8 (widely used in larger packages)
Verify exact package/pinout and current capability for a true drop-in replacement.

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