首页 > 英联产品 > 电源供应 > 开关稳压器 > DC-DC降压转换器
UM5482S8
2A,18V,同步降压型整流转换器
Datasheet Reliability Report Package Information Order Sample  
Key Specifications
Part Number Description Status SubFamily Regulated Outputs(.) Vin(Min)(V) Vin(Max)(V) Vout(Min)(V) Vout(Max)(V) Iout(Max)(A) Topology Special Features Frequency(kHz) Operating Temperature Range (°C) Pin/Package EV Kit Available?
UM5482S8 2A,18V,同步降压型整流转换器 ACTIVE Step-Down (Buck) Converter 1 4.75 18 0.923 15 2 Synchronous Buck Enable,Internal Soft-Start,Under Voltage Lockout 340 -40 to 85 8/SOP Y
View All>>
Product Description
 
The UM5482S8 is a synchronous buck regulator. The device integrates two 100mΩ MOSFETs, and provides 2A of continuous load current over a wide input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit.
An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 1μA.
This device, available in an 8-pin SOP package, provides a very compact solution with minimal external components.
 
Features
 
- 2A Output Current
- Wide 4.75V to 18V Operating Input Range
- Integrated 100mΩ Power MOSFET Switches
- Output Adjustable from 0.923V to 15V
- Up to 92% Efficiency
- Programmable Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 340kHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under Voltage Lockout
- SOP8 Package
 
Applications
 
- Distributed Power Systems
- Networking Systems
- FPGA, DSP, ASIC Power Supplies
- Green Electronics/Appliances
- Notebook Computers
 
Pin Configurations  

 

Typical Application Circuit

 
Ordering Information

Part Number
Packaging Type
Marking Code
Shipping Qty
UM5482S8
SOP8
UM5482S8
3000pcs/13Inch
Tape & Reel
 
@2014 Union Semiconductor Limited. All rights Reserved.
FOLLOW US