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PDF AIC3412 Data sheet ( Hoja de datos )
| Número de pieza | AIC3412 | |
| Descripción | Low IQ High Light Load Efficiency Synchronous Boost Converter | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC3412
FEATURES
Low IQ High Light Load Efficiency
Synchronous Boost Converter
DESCRIPTION
Deliver 3.3V at 60mA from a Single Alka-
line/Ni-MH or 3.3V at 120mA from Two Cells
Up to 94% Efficiency
Low Shutdown Current: < 1μA
Low Quiescent Current: 12μA.
Low No-load Input Current (see Typical Perfor-
mance Characteristics for detail)
Output Disconnect by Shutdown Function
Small SOT23-6 Package
APPLICATIONS
Wireless Mice
Medical Instruments
Smart Phones
Bluetooth Devices
The AIC3412 is a synchronous step-up DC/DC con-
verter. That is base on constant Off Time/PSM con-
troller topology. The IC enters PSM mode automatically
at light load, the goal is to improve efficiency and re-
duce quiescent current. The AIC3412 provide a com-
plete power supply solution for products powered by
one or two Alkaline, Ni-Cd, or Ni-MH battery cells. It
stays in operation with supply voltages down to 0.7V.
The implemented boost converter is based on a con-
stant Off Time/PSM controller topology using an inter-
nal synchronous rectifier to obtain maximum efficiency.
A low-EMI mode is implemented to reduce ringing and
in effect lower radiated electromagnetic energy when
the converter enters the discontinuous conduction
mode.
TYPICAL APPLICATION CIRCUITS
Fig. 1 One Cell Step-Up DC/DC Converter
Analog Integrations Corporation
3A1, 1 Lihsin 1st Rd., Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
DS-3412G-03 20141105
1
1 page  
AIC3412
TYPICAL PERFORMANCE CHARACTERISTICS(Continued)
Fig. 9 Input Supply Current vs. Supply Voltage
Fig. 10 Output Current vs. Supply Voltage
20mV/div.
1.2Vin/ 3.3Vout
Iout= 10mA~ 70mA
VOUT
2V/div.
2V/div.
50mA/div.
IOUT
50mA/div.
Fig. 11 Load Transient
1.2Vin/ 3.3Vout, Iout= 10mA
10mV/div.
VOUT, Ripple
ILX
100mA/div.
Fig. 12 Start up and Shutdown
Fig. 13 Output Voltage Ripple
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5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AIC3412.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AIC3412 | Low IQ High Light Load Efficiency Synchronous Boost Converter | Analog Intergrations Corporation |
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