小风扇升压IC:PL2628,
小风扇锂电池充电IC:
型号
封装
充电电流MAX
充电指示灯
PL4054(4.2V 锂电池)
SOT23-5 800MA
单灯
PL4057(4.2V 锂电池)
SOT23-6 500MA
双灯
PL4056(4.2V 锂电池)
SOP8 1000MA
双灯
PL4057D(4.35V 锂电池)
SOP8 1000MA
双灯
The PL2628 is a constant frequency, 6-pin SOT23
current mode step-up converter intended for small, low power applications. The PL2628 switches at 1.2MHz
and allows the use of tiny, low cost capacitors and inductors 2mm
or less in height. Internal soft-start results in small inrush
current and extends battery life.
The PL2628 features automatic shifting to pulse
frequency modulation mode at
light loads. The PL2628 includes under-voltage lockout, current limiting, and
thermal overload protection to prevent
damage in the event of an output overload. The
PL2628 is available in a small 6-pin SOT-23 package.
FEATURES
• Integrated 80mù Power MOSFET
• 2V to 24V Input Voltage
• 1.2MHz
Fixed Switching Frequency
• Internal 4A Switch Current Limit
• Adjustable Output Voltage
• Internal
Compensation
• Up to 28V Output Voltage
• Automatic Pulse Frequency Modulation
Mode at Light Loads
• up to 97% Efficiency
• Available in a 6-Pin SOT23-6 Package
APPLICATIONS
• Battery-Powered Equipment
• Set-Top Boxed
• LCD Bais Supply
• DSL and Cable Modems and Routers
• Networking cards powered from PCI or PCI express
slots
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