| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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1,426 pcs
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1426 pcs | On Request | 1 | On Request | On Request | N/A | On Request | On Request |
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The AAT3603IIH-T1 from Skyworks Solutions is a comprehensive Power Management IC (PMIC) designed for low-cost handheld portable devices like mobile telephones. It integrates a single-cell Lithium Ion/Polymer battery charger, a fully integrated step-down DC/DC converter, and five low dropout (LDO) regulators.
The device features a thermally regulated linear battery charger with programmable charge current up to 1.4A and automatic trickle charge. The integrated step-down buck converter operates at a 1.5MHz switching frequency, offering efficiency greater than 95% and a 300mA output. The five LDO regulators provide programmable output voltages via I2C, with features like 60dB PSRR and low noise operation, making them suitable for noise-sensitive loads. The LDOs offer outputs such as 300mA for LDO1 and 150mA for LDO2-LDO5.
Operating within a 4.5V to 6V input range, the AAT3603IIH-T1 is available in a 36-pin TQFN package measuring 5x5x0.75mm. It supports surface mount mounting. The device also includes over-current and over-temperature protection, along with adapter OK and reset timer outputs. Its low quiescent current, typically 170 μA with the buck and two LDOs enabled, makes it ideal for power-sensitive portable equipment.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 4.5V to 6V.
The operating temperature range is -40°C to 85°C.
The AAT3603IIH-T1 is available in a 36-TQFN (5x5mm) package and a 36-WFQFN Exposed Pad package.
The device integrates five LDOs: LDO1 and LDO2 provide 300mA each, while LDO3, LDO4, and LDO5 provide 150mA each.
The buck converter switching frequency is 1.5MHz.
The battery charger current is programmable up to 1.4A.
The typical quiescent current is 170 µA when the buck converter, LDO1, and LDO2 are active with no load.