The TPS65070RSLT is a single-chip Power Management IC for portable applications consisting of a battery charger with power path management for a single Li-Ion or Li-Polymer cell. The charger can either be supplied by an USB port on pin USB or by a DC voltage from a wall adapter connected to pin. Three highly efficient 2.25MHz step-down converter is targeted at providing the core voltage, memory and I/O voltage in a processor-based system. The step-down converter enters 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 converter allows the use of small inductors and capacitors to achieve a small solution size. The TPS6507x device also integrates two general purpose LDOs for an output current of 200mA.
Feature
- 10 bit A/D converter
- Touch screen interface
- Undervoltage lockout and battery fault comparator
- Charger/power path management - 2A output current on the power path
- Charger/power path management - Linear charger, 1.5A maximum charge current
- Charger/power path management - Thermal regulation, safety timers
- Charger/power path management - Temperature sense input
- 3 Step-down converters - 2.25MHz fixed-frequency operation
- 3 Step-down converters - up to 1.5A of output current
- 3 Step-down converters - adjustable or fixed output voltage
- 3 Step-down converters - power save mode at light load current
- 3 Step-down converters - output voltage accuracy in PWM mode ±1.5%
- 3 Step-down converters - 100% duty cycle for lowest dropout
- LDOs - fixed output voltage
- LDOs - dynamic voltage scaling on LD02
- LDOs - 200mA maximum output current
- wLED boost converter - Internal dimming using I2C
- wLED boost converter - Up to 25mA per string with internal current sink
