Image is for your reference only,please check specifications for details
Updated at 17/06/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- Description
- The LM3485 is a high-efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, low-cost, switching buck regulator for a wide range of applications. The hysteretic control architecture provides for simple design without any control-loop stability concerns using a wide variety of external components. The PFET architecture also allows for low component count as well as ultralow dropout, 100% duty cycle operation. Another benefit is high efficiency operation at light loads without an increase in output ripple.
- Current limit protection is provided by measuring the voltage across the RDS(ON) of the PFET, thus eliminating the need for a sense resistor. The cycle-by-cycle current limit can be adjusted with a single resistor, ensuring safe operation over a range of output currents.
- Features
- • Easy-to-Use Control Methodology
- • No Control-Loop Compensation Required
- • 4.5-V to 35-V Wide Input Range
- • 1.242-V to VIN Adjustable Output Range
- • High Efficiency 93%
- • ±1.3% (±2% Over Temp) Internal Reference
- • 100% Duty Cycle
- • Maximum Operating Frequency > 1 MHz
- • Current Limit Protection
- Applications
- • Set-Top Box
- • DSL or Cable Modem
- • PC/IA
- • Auto PC
- • TFT Monitor
- • Battery-Powered Portable Applications
- • Distributed Power Systems
- • Always On Power
LM3485MMX Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | TSSOP-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 1.242V ~ 35V |
| Output Current | 4 A |
| Number of Channels | 1 Channel |
| Quiescent Current | 250 µA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1 MHz |
| Topology | Buck |
| Duty Cycle | 100 % |
| Input Voltage (Max) | 35 V |
| Input Voltage (Min) | 4.5 V |
| Maximum Duty Cycle | 1 |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | 40 ℃ |
| Power Dissipation (Max) | 417 mW |
| Supply Voltage | 4.5V ~ 35V |
| Input Voltage | 4.5V ~ 35V |
| Show | |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| RoHS | Non-Compliant |
| Lead-Free Status | Contains Lead |
Order guide
-
TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
-
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
Popular Search Parts
- Recommended Parts
- Hot Parts
- Popular Parts
- Recently Popular Parts
- MBR2H100SFT3G STL6P3LLH6 FSA2466UMX TLE8888QK MPZ1608S601ATD25 MIMX8MM6CVTKZAA TCA9539QPWRQ1 THGBMJG6C1LBAIL LMZ21701SILT STM32H753ZIT6
- IRL2505L A9C20731 ACS1207S LC1D18BL L78S05CV IRLB8314 XL7015E1 IRFB4127 CPC1017N IRFP4110
- A9C20731 ACS1207S LC1D18BL L78S05CV IRLB8314 XL7015E1 IRFB4127 CPC1017N IRFP4110 STV9302A
- XUK9ARCNL2 LC1F1154 ATV61HD22N4 TPS63900DSKR LC1D12U7 300041 LC1D128M7 CPC1965G BC548A 2908215
SN:H1.20494LO56327V36Q0QC0S0
Buy LM3485MMX
Please fill the information below to send RFQ quickly,and we will respond immediately.