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PDF AIC3413 Data sheet ( Hoja de datos )
| Número de pieza | AIC3413 | |
| Descripción | Step-Down Converter | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AIC3413 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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AIC3413
400mA, 1.2MHz Synchronous Step-Up Converter
FEATURES
DESCRIPTION
VIN Start Up Voltage: 0.9V
Output Voltage Range: from 2.7V to 5.25V.
Up to 94% Efficiency
1.2MHz Fixed Frequency Switching
Built-in current mode compensation
Built-in Protection: Over Current, Over Voltage,
Over Temperature
Optional Automatic PWM/PSM Version (AIC3413)
and Forced PWM Version (AIC3413A).
Logic Controlled Shutdown: < 1μA
Output Disconnect by Shutdown Function
Built-in Soft Start
Active Anti-ringing Control
Small SOT-23-6 Package
APPLICATIONS
Single/Dual Cells Ni-Cd/Ni-Mh/Li-Lon Type Bat-
tery Operated Products
Wireless Mice
PDA
Digital Still Cameras
Portable Equipment
The AIC3413 is a synchronous step-up DC/DC con-
verter.
There are two options for AIC3413: automatic
PWM/PSM version (AIC3413), and forced PWM ver-
sion (AIC3413A). The automatic PWM/PSM version
enters PSM from PWM automatically when load de-
creases. The goal is to improve efficiency and reduce
quiescent current; the forced PWM version keeps the
same operating frequency even when it operates in
light load. This guarantees low output ripple and noise.
The AIC3413 provides a complete power supply solu-
tion for products powered by one or two Alkaline,
Ni-Cd, Ni-MH or Li-Lon battery cells. It stays in opera-
tion with supply voltages down to 0.5V. The imple-
mented boost converter uses an internal 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
1.2V
VIN
CIN
4.7uF
L1
4.7uH
U1
6 VIN
SW
4 SHDN VOUT
2 GND
AIC3413
FB
1
5
R1
3 1M
R2
600K
3.3V
VOUT
COUT
4.7uF
Analog Integrations Corporation
Si-Soft Research Center
DS-3413G-P08 20110128
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
1 page  
AIC3413
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Fig. 7 Frequency vs. Supply Voltage
Fig.8 Minimum Start-up Voltage vs. Output current
Fig. 9 Output Voltage vs. Temperature
Fig. 10 Frequency vs. Temperature
Fig. 11 Feedback Voltage vs. Temperature
Fig. 12 Start-up Voltage Waveform
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AIC3413.PDF ] | |
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