产品详情：
The AIC1628 step-up DC/DC Converter can
achieve very high efficiency in various
applications, especially for +12V flash memory
programming voltage and color LCD contrast bias
control voltage applications; the efficiency of these
application can reach as high as 85% to 95%.
power is the power conversion efficiency. High
efficiency converters can not only provide good
power conversion efficiency at normal operation,
but also reduce its own current consumption
during idle time. In order to maintain good
conversion efficiency from light to full loads, the
AIC1628 uses the intermittent switching control
method named PFM (Pulse-Frequency
Modulation) rather than the conventional PWM
control method. Fig. 1 shows the IC’s basic
function block. When the feedback voltage is great
than the reference voltage, the drive output is 0V.
When the feedback voltage is lower than the
reference voltage, the oscillator starting output
and send signal to the driver. This kind of control
method works similar to PWM at full load, with a
stable switch waveform; while light load it uses
intermittent switching to efficiently sustain output
loading requirements.
In addition, the AIC1628 converter has the
following features:1. Able to operate under input voltage range
from 4V to 24V.
2. Output voltage can be adjusted externally.
3. It has a PFM design adjusting switching
frequency and duty cycle automatically,
which makes it possible to obtain highly
efficient conversion over a wide input and
output voltage range.
4. Build in shutdown mode control.
5. Works in high frequency range from 90KHz to
250KHz, hence only requires small size
inductor.
6. It has complementary push-pull output driver,
is able to drive either NPN transistor or
MOSFET.
7. Low cost.
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MUSES01 DIP8
MUSES02 DIP8 双极输入
MUSES03 DIP8 J-FET输入
MUSES8820 DIP8/SOP8 双极输入MUSES8832 SOP8/SSOP8/DFN8双极输入轨至轨输出
MUSES8920 DIP8/SOP8/DFN8J-FET输入
NJM8801 SOP8/SSOP8 双极输入
NJM8901 SOP8
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NJU72065 电子音量控制单端/差分输入 MSOP10/SSOP20
NJM2070 低工作电压 DIP8/DMP8
NJM2073 低工作电压 DIP8/DMP8
NJM2076 低工作电压 DIP8/DMP8
NJM2096 低工作电压 DIP8/DMP8
NJM2113 低工作电压 DIP8/DMP8/SOP8/SIP8/SSOP8/MSOP8
NJM2128 低工作电压电路 DMP16
NJM2135 低工作电压 DIP8/DMP8/SIP8/SSOP8/MSOP8
NJM2149 低工作电压 DIP8/DMP8/SSOP8/MSOP8/
NJM2151A 电子音量控制立体声耳机放大器 DMP20/SSOP20
NJM2166 电子音量控制立体声耳机放大器 SSOP14/MSOP10
NJM2768B 有 固定增益.DMP8/MSOP8
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NJM2770 低工作电压 MSOP8/MSOP8
NJM2775A DMP16
NJM2776 低工作电压 MSOP10(TVSP10)
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NJM386 DIP8/SIP8/DMP8
NJM386B DIP8/DMP8/SIP8
NJU7082B DMP8/SSOP8
NJU7084 MSOP8
NJU7085 环绕声功能 PCSP32-F7/SSOP32
NJU7086 3输入选择器电子音量控制 LQFP48-R3
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NJM7805S
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NJM7824S 正电压类型 TO-252-3 宽温度范围 (-40°C to +125°C)
NJM78L02
NJM78L03
NJM78L05
NJM78L06
NJM78L07
NJM78L08
NJM78L09
NJM78L10
NJM78L12
NJM78L15
NJM78L18
NJM78L20 SOT-89-3/
SOP8 正电压类型
NJM78L24
NJM78LR05 有复位功能 DIP8/DMP8/SIP8/SOT-89-5
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
Tel：0755-83660559
qq：869030400
E-mail：869030400@qq.com
