Ltc3307ahv meets EMI standard, step-down converter qca7005-al33 phy

LTC3307A/B Use a constant frequency 、 Peak current mode control , Switching frequency up to 3MHz, The minimum on time is as low as 22ns, Small external components can be used to achieve fast transient response .

LTC3307A/B step-down Silent Switcher It's a very small 、 high efficiency 、 Low noise 、 Monolithic synchronization 3A Step down DC / DC converter , use 2.25V to 5.5V Input power works .Silent Switcher The architecture minimizes EMI Radiation interference .

 

Use forced continuous or pulse skip mode , It can realize low noise or low ripple Burst Mode Work , So as to achieve high efficiency under light load , It is very suitable for battery powered systems . The IC Adjustable as low as 500mV The output voltage of . Other features include output overvoltage / Short circuit protection 、 Thermal shutdown 、 Clock synchronization and up to 100% Duty cycle operation （ Used to achieve low differential pressure ）. The device adopts 2mm × 2mm × 0.74mm Thin square flat leadless (LQFN) encapsulation , With bare pads （ Used to achieve low thermal resistance ）.

features
high efficiency ：8mΩ NMOS,31mΩ PMOS
Programmable frequency to 3MHz
Miniature inductors and capacitors
Peak current mode control
Minimum conduction time ：22ns
Wide bandwidth 、 Fast transient response
Silent Switcher framework
Ultralow EMI Radiation interference
Low ripple Burst Mode function ,IQ by 40µA
It can safely withstand inductor saturation under overload
VIN Range ：2.25V to 5.5V
VOUT Range ：0.5V to VIN
VOUT precision ： The whole temperature range is ±1%
400mV Precision enable threshold
Turn off the current ：1µA
Internal compensation and soft start
Good power output
Heat resistant reinforced 2mm × 2mm LQFN encapsulation

application
Optical network 、 The server 、 telecom
automobile 、 Industry 、 signal communication
Distributed DC power system (POL)
FPGA、ASIC、µP Kernel power

QCA7005-AL33  PHY 1CH 3.3V 68Pin QFN 

Specifications
The channel number ：1
encapsulation ：QFN-68
working temperature ：-40 ℃ ~ 85 ℃

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