The AIC1550 is a low-noise pulse-width-modulated (PWM) DC-DC step-down converter. It powers logic circuits in PDAs and small wireless systems such as cellular phones, handy-terminals.
The device features an internal synchronous rectifier for high conversion efficiency. Excellent noise characteristics and fixed-frequency operation provide easy post-filtering. The AIC1550 is ideally suited for Li-ion battery applications. It is also suitable for +3V or +5V fixed input applications. The device can operate in either one of the following four modes.
|
|
|
· PDAs.· Digital Still Cameras.· Handy-Terminals.· Cellular Phones.· CPU I/O Supplies.· Cordless Phones.· Notebook Chipset Supplies.· Battery-Operated Devices (4 NiMH/ NiCd or 1 Li-ion Cells).
|
` 95% Efficiency or up` 800mA Guaranteed Output Current.` Adjustable Output Voltage from 0.75V to VIN of a range from +2.5V to 6.5V.` Very Low Quiescent Current: 35A (Typ.).` Fixed- 500KHz or Adjustable Frequency Synchronous PWM Operation.` Synchronizable external Switching Frequency up to 1MHz.` Accurate Reference: 0.75V (±2%).` 100% Duty Cycle in Dropout.` Low Profile 8-Pin MSOP Package.
|
VIN, BP, SHDN, SYNC/MODE, RT to GND .........-0.3 to +7V
BP to VIN ......................................................-0.3 to 0.3V
LX to GND ............................................-0.3 ~ (VIN+0.3V)
FB to GND........................................... -0.3 ~ (VBP+0.3V)
Operating Temperature Range ..................-40°C ~ 85°C
Junction Temperatrue ............................................125°C
Storage Temperature Range ..................- 65°C ~ 150°C
Lead Temperature (Soldering. 10 sec) ..................260°C
Post a Buying Lead
Required Field 
