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Product Description
Product Description
AMPAK AP6256 dealer supplies QFN44 2-in-1 WiFi module integrated IC chip
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Triple 800mA synchronous
Downgrade regulator – 2.25MHz
LTC®3545/LTC3545-1 is triple, high efficiency,
Overall synchronization regulator using constant
Frequency, current mode architecture. The regulator operates independently with separate pins. 2.25V to
5.5V input voltage range makes LTC3545/LTC3545-1
Ideal for single lithium-ion battery-powered applications.
Low ripple pulse skip mode or high efficiency burst mode
Operations are externally selected. PWM pulse skip mode
Operation provides very low output ripple voltage
Breaking mode operation improves efficiency at low output
load.
The switching frequency is set internally to 2.25MHz or
Switching frequency can be synchronized to external
1MHz to 3MHz clock. Power-good indicators are easily allowed
The power of sequencing between the three regulators.
Internal synchronous switches improve efficiency and
Eliminate external Schottky diodes. The low output voltage is
Supports 0.6V feedback reference voltage.
LTC3545-1 uses a instead of synchronization/mode function
The third pgood pin and force burst mode operation.
■Three 800mA outputs
■High efficiency: 95%
■2.25V to 5.5V input voltage range
■Low Chain (<20MVP-P) Breaking Mode® Operation
IQ: 58μA
■2.25MHz constant frequency operation or
■Cycling to external 1MHz to 3MHz clocks
■Power good indicators facilitate supply and sequencing
■0.6V reference allows low output voltage
■ Current mode operation/Excellent transient response
■Low profi le 16 lead 3mm×3mm QFN packaging
■Smartphones
■Wireless and DSL modems
■Digital camera
■Portable Instruments
■Load supervision point
High-efficiency triple lift converter with power sequencing
Efficiency and loss and load current
L, LT, LTC, LTM and BUST models are registered trademarks of Linear Technology companies.
All other trademarks are the property of their respective owners.
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