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MFG:AIC
Part Number: AIC1550
MFG: AIC
Description: The AIC1550 is a low-noise pulse-width-modulated (PWM) DC-DC step-down converter. It powers logic circ...
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AIC1550
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General Description
AIC1550 General Description
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.
AIC1550 Maximum Ratings
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
Absolute Maximum Ratings are those values beyond which the life of a device may be Impaired.
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
Absolute Maximum Ratings are those values beyond which the life of a device may be Impaired.
AIC1550 Features
`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.
`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.
AIC1550 Connection Diagram
aic1550
PDF/DataSheet Download
- Datasheet: aic1550
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