ACTIVE
Part Number
UM5482
Description
2A, 18V Synchronous Rectified Step-Down Converter
Status
ACTIVE
Topology
Sync Buck
Iout(Max) (A)
2
Vin(Min) (V)
4.75
Vin(Max) (V)
18
Vout (Min) (V)
0.923
Vout (Max) (V)
15
Control mode
PWM
Switching Frequency (MHz)
0.34
Max Efficiency(%)
92
Features
Programmable Soft-Start, Cycle-by-Cycle Over Current Protection, Input Under Voltage Lockout, Thermal Fault Protection
Operating Temperature Range (℃)
-40 to 85
Package
SOP8
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.
- 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
- Distributed Power Systems
- Networking Systems
- FPGA, DSP, ASIC Power Supplies
- Green Electronics/Appliances
- Notebook Computers
| Part Number | Packaging Type | Marking Code | Shipping Qty |
|---|---|---|---|
| UM5482S8 | SOP8 | UM5482S8 | 3000pcs/13Inch Tape & Reel |
