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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AAT3603 датащи(PDF) 1 Page - Advanced Analogic Technologies |
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AAT3603 датащи(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 35 page  AAT3603178 Total Power Solution for Portable Applications PRODUCT DATASHEET 3603.2008.06.1.0 1 www .analogictech.com General Description The AAT3603 is a member of AnalogicTech’s Total Power Management ICTM (TPMICTM) product family. It contains a single-cell Lithium Ion/Polymer battery charger, a fully integrated step-down converter and 5 low dropout (LDO) regulators. The device is ideal for low cost handheld por- table GSM or CDMA mobile telephones. The battery charger is a complete thermally regulated constant current/constant voltage linear charger. It includes an integrated pass device, reverse blocking pro- tection, high accuracy current and voltage regulation, charge status, and charge termination. The charging current, charge termination current, and recharge volt- age are programmable with an external resistor and/or by a standard I2C interface. The step-down DC/DC converter is integrated with internal compensation and operates at a switching frequency of 1.5MHz, thus minimizing the size of external components while keeping switching losses low and efficiency greater than 95%. All LDO output voltages are programmable using the I2C interface. The five LDOs offer 60dB power supply rejection ratio (PSRR) and low noise operation making them suitable for powering noise-sensitive loads. All six voltage regulators operate with low quiescent cur- rent. The total no load current when the step-down con- verter and 2 LDOs are enabled is only 170μA. The AAT3603 is available in a thermally enhanced low profile 5x5x0.8mm 36-pin TQFN package. Features • Voltage Regulator V IN Range: 4.5V to 6V • Low Cost Power Integration • Low Standby Current ▪ 170μA (typ) w/ Buck (Core), LDO1 (PowerDigital), and LDO2 (PowerAnalog) Active, No Load • One Step-Down Buck Converter (Core) ▪ 1.8V, 300mA Output ▪ 1.5MHz Switching Frequency ▪ Fast Turn-On Time (120μs typ) • Five LDOs Programmable with I2C ▪ LDO1: 3.0V, 300mA (PowerDigital) ▪ LDO2: 3.0V, 150mA (PowerAnalog or PLL) ▪ LDO3: 3.0V, 150mA (TCXO) ▪ LDO4: 3.0V, 150mA (TX) ▪ LDO5: 3.0V, 150mA (RX) ▪ PSRR: 60dB@10kHz ▪ Noise: 50μVrms for LDO3, LDO4, and LDO5 • One Battery Charger ▪ Digitized Thermal Regulation ▪ Charge Current Programming up to 1.4A ▪ Charge Current Termination Programming ▪ Automatic Trickle Charge for Battery Preconditioning (2.8V Cutoff) • Adapter OK (ADPP) and Reset (RESET) Timer Outputs • Separate Enable Pins for Supply Outputs • Over-Current Protection • Over-Temperature Protection • 5x5mm TQFN55-36 Package Applications • Digital Cameras • GSM or CDMA Cellular Phones • Handheld Instruments • PDAs and Handheld Computers • Portable Media Players |
Аналогичный номер детали - AAT3603 |
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Аналогичное описание - AAT3603 |
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