直流升压转换器
功能特点
产品名称:直流升压转换器
产品型号:HT9266
产品描述:
The HT9266 is a compact, high efficiency, and
low voltage step-up DC/DC converter with an
Adaptive Current Mode PWM control loop,
includes an error amplifier, ramp generator,
comparator, switch pass element and driver in
which providing a stable and high efficient
operation over a wide range of load currents. It
operates in stable waveforms without external
compensation.
The low start-up input voltage below 1V makes
HT9266 suitable for 1 to 4 battery cells
applications of providing up to 300mA output
current. The 450KHz high switching rate
minimized the size of external components.
Besides, the 17μA low quiescent current together
with high efficiency maintains long battery
lifetime.
The output voltage is set with two external
resistors. Both internal 2A switch and driver for
driving external power devices (NMOS or NPN)
are provided.
参数:
Supply Voltage...................................................................................... -0.3V to7V
LX Pin Switch Voltage ............................................................................ -0.3V to7V
Other I/O Pin Voltages............................................. ............................... -0.3V to (VDD + 0.3V)
LX Pin Switch Current.............................................................................. 2.5A
EXT Pin Driver Current............................................................................. 200mA
Package Thermal Resistance
SOT-26, θJC.............................................................................................. 145℃/W
SOT-89-5, θJC........................................................................................... 45°C/W
Operating Junction Temperature ............................................................. 125°C
Storage Temperature Range.................................................................... -65°C to +150°C封装:SOT-26 SOT-89
热搜元器件
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