Datasheet Analog Devices LT3663EMS8E-5#PBF — 数据表

LT3663
1.2A Step-Down
Switching Regulator with
Output Current Limit
Features Description Wide Input Range: Operation from 7.5V to 36V Overvoltage Lockout Protects Circuit through 60V Transients
n Programmable Output Current Limit (0.4A to 1.2A)
n 3.3V and 5V Fixed Output Voltage Options
n Integrated Boost Diode
n Fixed Frequency, Peak Current Mode Control LT3663 fSW = 1.5MHz LT3663-X fSW = 1MHZ
n Low Switch V
CESAT: 275mV at 1A
n Internally Compensated
n Thermal Protectio Thermally Enhanced 8-Pin 2mm × 3mm DFN and
MSOP Packages The LT®3663 is a current mode step-down switching regulator with programmable output current limit. The current
limit accurately controls the system power dissipation and
reduces the size of the power path components. n Applications n n The wide operating input voltage range of 7.5V to 36V (60V
transient) suits the LT3663 to a variety of input sources,
including unregulated 12V wall adapters, 24V industrial
supplies, and automotive power.
The LT3663 includes a low current shutdown mode, input
overvoltage and undervoltage lockout, and thermal shutdown. Internal compensation and boost diode minimize the
number of external exponents. 3.3V and 5V fixed output
voltage versions are available. …