TPS65321QPWPRQ1

Description
The TPS65217x is a single-chip power management IC (PMIC) specifically designed to power the AM335x ARM® Cortex-A8 processor in portable and 5-V linepowered applications.
The PMIC device provides a linear battery charger for single-cell Li-ion and Lipolymer batteries, dual-input power path, three stepdown converters, four low-dropout (LDO) regulators, and a high-efficiency boost converter to power two strings of up to 10 LEDs each.
The system can be supplied by any combination of USB port, 5-V AC adaptor, or Li-Ion battery.
The device is characterized across a –40°C to +105°C temperature range which makes it suitable for industrial applications. Three high-efficiency 2.25-MHz step-down converters can providing the core voltage, memory, and I/O voltage for a system.
The TPS65217x device comes in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.
Features
• Charger and Power Path– 2-A Output Current on Power Path– Linear Charger; 700-mA Maximum Charge Current– 20-V Tolerant USB and AC Inputs–
Thermal Regulation, Safety Timers– Temperature Sense Input
• Step-Down Converter (DCDC1, DCDC2,DCDC3)– Three Step-Down Converter With Integrated Switching FETs– 2.25-MHz Fixed Frequency Operation– Power-Save Mode at Light-Load Current– Output Voltage Accuracy in PWM Mode ±2%– 100% Duty Cycle for Lowest Dropout– Typical 15-µA Quiescent per Converter– Passive Discharge to Ground When Disabled
• LDO Regulators (LDO1, LDO2)– Two Adjustable LDOs– LDO2 can be Configured to Track DCDC3– Typical 15-µA Quiescent Current
• Load Switches (LDO3, LDO4)– Two Independent Load Switches That Can Be Configured as LDOs
• WLED Driver– Internally Generated PWM for Dimming Control– 38-V Open-LED Protection– Supports Two Strings of up to 10 LEDs at 25 mA Each– Internal Low-Side Current Sinks
• Protection– Undervoltage Lockout and Battery Fault Comparator– Always-On Push-Button Monitor– Hardware Reset Pin– Password Protected I2C Registers
• Interface– I2C Interface (Address 0x24)– Password-Protected I2C Registers   Applications
• Sitara AM335x Processor Power
• Portable Navigation Systems
• Tablet Computing
• 5-V Industrial Equipment