Topology | SEPIC Buck-Boost Topology |
Input voltage | 3-4.2 V |
Output 1 | 3.3 V / 1 A |
IC revision | A |
The AT73C224-x is a family of ultra low cost Power Management Unit, available in asmall outline QFN 5x5mm package.The AT73C224-x family is optimized for portable applications, typically powered by aLi-Ion battery. The AT73C224-x device is also suitable to operate from a standard3.3V to 5.25V voltage rail. It includes four power supplies and a very low power RealtimeClock (RTC). In normal mode (main battery present), the backup battery isrecharged through a 2.6V RTC LDO.The AT73C224-x series offer different automatic start-up sequences (with varyingorders of power-on and specific default output values) and different soft managementmodes: dynamic (via SPI or TWI) with register access or static, with access to poweron/off of the four power supplies.Each AT73C224-x device is equipped with a very low power bandgap reference, lowpower 32 kHz and 1 MHz oscillators and an internal LDO used to generate the internalsupply (VINT) equal to 2.8V. Auxiliary cells, such as a power-on reset (POR) and avoltage monitor are used to control the system power-on (battery plugged in) andpower-off (battery unplugged).The four power supplies are named: BOOST1, BUCK2, LDO3 and LDO4.Table 1-1 lists the different devices available in the AT73C224-x series.
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Samples | |
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744773022 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD2 SMT Power Inductor | 2.2 | 2.5 | 3.38 | 0.071 | 85 | |||
744773068 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD2 SMT Power Inductor | 6.8 | 1.54 | 2.1 | 0.131 | 41 |
Order Code | Datasheet | Simulation | |
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744773022 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | ||
744773068 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Samples |
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