|Number of power rails available||7|
|Input voltage range||2.7 V - 5.8 V|
|Sequencing (power-up/down)||Configurable *|
|Special features||Power path, Linear Charger, WLED, DVS|
* Voltage rails and power up sequences are set by default settings. Specific Voltage rails and Sequences settings may be obtained by contacting your Sales Office.
|Multi-rail configurations||Voltage range*||Current limit|
|DCDC1||0.9 V - 3.3 V||1.2 A|
|DCDC2||0.9 V - 3.3 V||1.2 A|
|DCDC3||0.9 V - 3.3 V||1.2 A|
|LDO1||1.0 V - 3.3 V||100 mA|
|LDO2||0.9 V - 3.3 V||100 mA|
|LDO3/LS1||1.5 V - 3.3 V||400 mA|
|LDO4/LS2||1.5 V - 3.3 V||400mA|
|Processors manufacturer||Texas Instruments||Texas Instruments||Texas Instruments||Texas Instruments|
|Processor package||AM335x ZCE||AM335x ZCZ, ZCE||AM335x ZCZ, ZCE||AM335x ZCZ, ZCE|
|Multi-rail configurations||Voltage||Sequence (Strobe)||Voltage||Sequence (Strobe)||Voltage||Sequence (Strobe)||Voltage||Sequence (Strobe)|
|LDO1||1.8||Always on||1.8||Always on||1.8||Always on||1.8||Always on|
|LDO3/LS1||Load switch||1||3.3 (LDO, 200mA)||3||1.8 (LDO, 400mA)||2||1.8 (LDO, 400mA)||2|
|LDO4/LS2||Load switch||4||3.3 (LDO, 200mA)||4||3.3 (LDO, 400mA)||4||3.3 (LDO, 400mA)||4|
|User's guide||Powering the AM335x with the TPS65217x||Powering the AM335x with the TPS65217x||Powering the AM335x with the TPS65217x||Powering the AM335x with the TPS65217x|
The TPS65217 is a single-chip power management IC specifically designed to support applications in portable and 5-V non-portable applications. It provides a linear battery charger for single-cell Li-ion and Li-Polymer batteries, dual-input power path, three step-down converters, four LDOs, 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.
These step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents. For low-noise applications the devices can be forced into fixed frequency PWM using the I2C interface. The step-down converters allow the use of small inductors and capacitors to achieve a small solution size.
LDO1 and LDO2 can support system-standby mode. In SLEEP state output current is limited to 1 mA to reduce quiescent current whereas in normal operation they can support up to 100 mA each. LDO3 and LDO4 can be configured to support up to 4 00 mA each and can be configured as load switches instead of regulators. All four LDOs have a wide input voltage range that allows them to be supplied either from one of the DC-DC converters or directly from the system voltage node.
By default only LDO1 is always ON but any rail can be configured to remain up in SLEEP state. Especially the DC-DC converters can remain up in a low-power PFM mode to support system suspend mode.
The TPS65217 offers configurable power-up and power-down sequencing and several housekeeping functions such as power-good output, pushbutton monitor, hardware reset function and temperature sensor to protect the battery.
For details on specific applications please see our application note SLVU551.
The TPS65217 comes in a 48-pin leadless package (6-mm × 6-mm QFN) with a 0.4-mm pitch.
|Regulated Outputs (#)|
|Vin (Min) (V)|
|Vin (Max) (V)|
|Step-Up DC/DC Converter|
|Step-Down DC/DC Converter|
|Iout (Max) (A)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|-40 to 105|
|2.04 | 1ku|
|Sample & Buy|