Skyworks Solutions, Inc.: Power Management Unit: AAT2556: AAT2556IWP-CA-T1

Power Electronics Products from CDI

250mA Step-Down DC/DC + Charger, TDFN33-12TR
Manufacturer: Skyworks Solutions, Inc.
Status: Obsolete
Data Sheet: AAT2556IWP-CA-T1 Data Sheet
RoHS Compliance: Skyworks Solutions, Inc., AAT2556IWP-CA-T1, Power Management Unit, 250mA Step-Down DC/DC + Charger, TDFN33-12TR (Rohs Compliant), Component Distributors Inc. (CDI) Yes
Battery Charger Type:
# of Step-Up Regulators:
# of Step-Down Regulators:
# of LDO Regulators:
Min Vin:
2.7 V
Max Regulator Vin:
5.5 V
Max Charger Vin:
6.5 V
Max Charge Current:
500 mA
Single Ch. Max Output Current:
250 mA
Single Ch. Min Output Voltage:
0.6 V
Vout Max:
5.5 V
Output Voltage Controls:
External Resistors
Operating Frequency:
1500 kHz
3 x 3 x 0.75, TDFN33 12L
Also Available
Part FunctionPart NumberDescription
Evaluation Board AAT2556IWP-CA-T1-DB1 Skyworks Solutions, Inc. Evaluation board for AAT2556IWP-CA-T1
The AAT2556 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a fully integrated 500mA battery charger plus a 250mA step-down converter. The input voltage range is 4V to 6.5V for the battery charger and 2.7V to 5.5V for the step-down converter, making it ideal for single-cell lithium-ion/polymer battery-powered applications. The battery charger is a complete constant current/constant voltage linear charger. It offers an integrated pass device, reverse blocking protection, high current accuracy and voltage regulation, charge status, and charge termination. The charging current is programmable via external resistor from 15mA to 500mA. In addition to standard features, the device offers over-voltage, current limit, and thermal protection. The step-down converter is a highly integrated converter operating at 1.5MHz of switching frequency, minimizing the size of external components while keeping switching losses low. It has independent input and enable pins. The output voltage ranges from 0.6V to the input voltage. The feedback and control deliver excellent load regulation and transient response with a small output inductor and capacitor. The AAT2556 is available in a Pb-free, thermally-enhanced, TDFN33-12 package and is rated over the -40°C to +85°C temperature range.