|
|
PDF AIC3417 Data sheet ( Hoja de datos )
| Número de pieza | AIC3417 | |
| Descripción | 1.0A Synchronous Step-Up Converter | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AIC3417 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
AIC3417
1.0A Synchronous Step-Up Converter
FEATURES
Output Voltage Range: from 2.5V to 5.5V.
Up to 94% Efficiency
Up to 1.0A Continuous Output Current
Allow EN pin Floating
Built-in current mode compensation
Built-in Protection: Over Current, Over Voltage,
Over Temperature
Optional Active High/Low EN pin
Logic Controlled Shutdown: < 1μA
Output Disconnect by Shutdown Function
Built-in Soft Start
APPLICATIONS
DESCRIPTION
The AIC3417 is a high efficiency, step-up DC/DC con-
verter with high light load efficiency. The true output
disconnect function eliminates inrush current and al-
lows Vout to go to zero during shutdown.
The AIC3417 is suited for high current boost application
such as battery backup supplies or wireless devices
powered by one Li-Ion battery or two Alkaline, Ni-Cd,
Ni-MH battery.
The device includes a 50mΩ N-Ch MOSFET switch
and a 60mΩ P-Ch MOSFET switch; it can provide high
efficiency at 1.0A continuous output current. High effi-
ciency is achieved at light load when PSM Mode oper-
ation is entered, where the IC’s quiescent current is
lower than 20μA on Vout.
The AIC3417 is available in the small 3mm x 3mm
DFN-10 and SOP-8(EP) package.
Li-Ion Type Battery Operated Products
Power Bank
Handheld Devices
Portable Products
TYPICAL APPLICATION CIRCUITS
Typical Application Circuit for DFN-10 Package
Analog Integrations Corporation
Si-Soft Research Center
3A1, 1 Li-Hsin 1st Rd., Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
DS-3417G-02 20150402
www.analog.com.tw
1
1 page  
AIC3417
TYPICAL PERFORMANCE CHARACTERISTICS
100 100
95
90
85
80
75
70
VOUT=2.5V
65
1E-3
0.01 0.1
Load Current(A)
VIN=2.4V
VIN=1.8V
VIN=1.2V
1
Fig. 1 Efficiency vs. Load Current
95
90
85
80
75
VOUT=3.3V
70
1E-3
0.01 0.1
Load Current(A)
VIN=3V
VIN=2.4V
VIN=1.8V
1
Fig. 2 Efficiency vs. Load Current
100 2.70
95
90
85
80
75
VOUT=5.0V
70
1E-3
VIN=4.2V
VIN=3.6V
VIN=3V
0.01 0.1
Load Current(A)
Fig. 3 Efficiency vs. Load Current
1
3.40
VIN=3V
VIN=2.4V
VIN=1.8V
3.35
2.65
2.60
2.55
VIN=2.4V
2.50 VIN=1.8V
VIN=1.2V
2.45
1E-3
0.01 0.1
Load Current(A)
Fig. 4 Output Voltage vs. Load Current
1
5.10
VIN=4.2V
VIN=3.6V
VIN=3V
5.05
3.30 5.00
3.25 4.95
3.20
1E-3
0.01 0.1
Load Current(A)
Fig. 5 Output Voltage vs. Load Current
1
4.90
1E-3
0.01 0.1
Load Current(A)
Fig. 6 Output Voltage vs. Load Current
1
5
5 Page 
AIC3417
localized, minimizing EMI and input voltage ripple. Al-
ways examine the ceramic capacitor DC voltage coef-
ficient characteristics to get the proper value.
Output Capacitor Selection
The output capacitor limits the output ripple and pro-
vides holdup during large load transitions. Two 22μF,
X5R or X7R, ceramic capacitors are suggested for the
output capacitor. Typically the recommended capacitor
range provides sufficient bulk capacitance to stabilize
the output voltage during large load transitions and has
the low ESR and ESL characteristics necessary for low
output voltage ripple.
PCB Layout Guidance
This is a considerably high frequency for DC-DC con-
verters. PCB layout is important to guarantee satisfac-
tory performance. It is recommended to make traces of
the power loop, especially where the switching node is
involved, as short and wide as possible. First of all, the
inductor, input and output capacitor should be as close
to the device as possible. Feedback and shutdown
circuits should avoid the proximity of large AC signals
involving the power inductor and switching node.
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AIC3417.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AIC3412 | Low IQ High Light Load Efficiency Synchronous Boost Converter | Analog Intergrations Corporation |
| AIC3413 | Step-Down Converter | Analog Intergrations Corporation |
| AIC3414 | Synchronous Step-Up Converter |  Analog Integrations |
| AIC3415 | 1.2MHz Synchronous Step-Up Converter | Analog Intergrations Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |