Texas Instruments' TPS65218 is a single chip power management IC, specifically designed to support the AM437x line of the Sitara processor in both portable (Li-Ion battery) and non-portable (5 V adapter) applications. The device is characterized across a –40°C to 105°C temperature range, making it suitable for a wide range of industrial applications.
TPS65218 comes in a 48-pin QFN package (6 mm × 6 mm, .4 mm pitch) and a 48-pin QFP package (7 mm × 7 mm, 0.5 mm pitch).
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- Two low-quiescent current, high efficiency step-down converters for battery backup domain
- DCDC5: 1.0 V output
- DCDC6: 1.8 V output
- VIN range from 2.2 to 5.5 V
- Supplied from system power or coin-cell backup battery
- One adjustable buck-boost converter with integrated switching FETs:
- DCDC4: 3.3 V default up to 1.0 A (I/O)
- VIN range from 2.7 to 5.5 V
- Adjustable output voltage range 0.85 to 3.5 V
- Active output-discharge when disabled
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- Three adjustable step-down converters with integrated switching FETs:
- DCDC1: 1.1 V default up to 1.8 A (core)
- DCDC2: 1.1 V default up to 1.8 A (MPU)
- DCDC3: 1.25 V default up to 1.8 A (DDR)
- VIN range from 2.7 to 5.5 V
- Adjustable output voltage range 0.85 to 3.5 V
- Power save mode at light load current
- 100% duty cycle for lowest dropout
- Active output-discharge when disabled
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